VERSION

@@ -1 +1 @@
-0.1.0
+0.2.0

sql/tournament_patch.sql

@@ -0,0 +1,144 @@
+-- Apply this patch after using create_database.sql to extend the schema to support tournaments from version 0.2.0
+-- WARNING: Executing this on a post 0.2.0 database will delete all data related to tournaments !!!
+
+DROP TABLE IF EXISTS `game_titles`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `game_titles` (
+    id           INT AUTO_INCREMENT PRIMARY KEY,
+    name         VARCHAR(255) NOT NULL,
+    description  TEXT NOT NULL,
+    web_link     VARCHAR(512) NOT NULL,
+    image_name   VARCHAR(255) NOT NULL,
+    UNIQUE KEY uq_game_title_name (name)
+) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+
+DROP TABLE IF EXISTS `tournaments`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `tournaments` (
+    id                INT AUTO_INCREMENT PRIMARY KEY,
+    name              VARCHAR(255) NOT NULL,
+    description       TEXT NOT NULL,
+    game_title_id     INT NOT NULL,
+    format            VARCHAR(20) NOT NULL,        -- SE_BO1, DE_BO3, ...
+    start_time        DATETIME NOT NULL,
+    status            VARCHAR(20) NOT NULL,        -- OPEN, CLOSED, ONGOING, ...
+    max_participants  INT NOT NULL,
+    created_at        DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT fk_tournament_game
+        FOREIGN KEY (game_title_id)
+        REFERENCES game_titles(id)
+) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+CREATE INDEX idx_tournaments_game_title
+    ON tournaments(game_title_id);
+
+DROP TABLE IF EXISTS `tournament_participants`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `tournament_participants` (
+    id               INT AUTO_INCREMENT PRIMARY KEY,
+    tournament_id    INT NOT NULL,
+    user_id          INT NOT NULL,
+    participant_type VARCHAR(10) NOT NULL DEFAULT 'PLAYER',
+    seed             INT NULL,
+    joined_at        DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    UNIQUE KEY uq_tournament_user (tournament_id, user_id),
+
+    CONSTRAINT fk_tp_tournament
+        FOREIGN KEY (tournament_id)
+        REFERENCES tournaments(id)
+        ON DELETE CASCADE,
+
+    CONSTRAINT fk_tp_user
+        FOREIGN KEY (user_id)
+        REFERENCES users(user_id)
+) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+CREATE INDEX idx_tp_tournament
+    ON tournament_participants(tournament_id);
+CREATE INDEX idx_tp_user
+    ON tournament_participants(user_id);
+
+DROP TABLE IF EXISTS `tournament_rounds`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `tournament_rounds` (
+    id             INT AUTO_INCREMENT PRIMARY KEY,
+    tournament_id  INT NOT NULL,
+    bracket        VARCHAR(10) NOT NULL,   -- UPPER, LOWER, FINAL
+    round_index    INT NOT NULL,
+
+    UNIQUE KEY uq_round (tournament_id, bracket, round_index),
+
+    CONSTRAINT fk_round_tournament
+        FOREIGN KEY (tournament_id)
+        REFERENCES tournaments(id)
+        ON DELETE CASCADE
+) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+CREATE INDEX idx_rounds_tournament
+    ON tournament_rounds(tournament_id);
+
+DROP TABLE IF EXISTS `matches`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `matches` (
+    id              INT AUTO_INCREMENT PRIMARY KEY,
+    tournament_id   INT NOT NULL,
+    round_id        INT NOT NULL,
+    match_index     INT NOT NULL,
+    status          VARCHAR(15) NOT NULL,   -- WAITING, PENDING, COMPLETED, ...
+    best_of         INT NOT NULL,            -- 1, 3, 5
+    scheduled_time  DATETIME NULL,
+    completed_at    DATETIME NULL,
+
+    UNIQUE KEY uq_match (round_id, match_index),
+
+    CONSTRAINT fk_match_tournament
+        FOREIGN KEY (tournament_id)
+        REFERENCES tournaments(id)
+        ON DELETE CASCADE,
+
+    CONSTRAINT fk_match_round
+        FOREIGN KEY (round_id)
+        REFERENCES tournament_rounds(id)
+        ON DELETE CASCADE
+) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;
+
+CREATE INDEX idx_matches_tournament
+    ON matches(tournament_id);
+
+CREATE INDEX idx_matches_round
+    ON matches(round_id);
+
+DROP TABLE IF EXISTS `match_participants`;
+/*!40101 SET @saved_cs_client     = @@character_set_client */;
+/*!40101 SET character_set_client = utf8 */;
+CREATE TABLE `match_participants` (
+    match_id        INT NOT NULL,
+    participant_id  INT NOT NULL,
+    score           INT NULL,
+    is_winner       TINYINT(1) NULL,
+
+    PRIMARY KEY (match_id, participant_id),
+
+    CONSTRAINT fk_mp_match
+        FOREIGN KEY (match_id)
+        REFERENCES matches(id)
+        ON DELETE CASCADE,
+
+    CONSTRAINT fk_mp_participant
+        FOREIGN KEY (participant_id)
+        REFERENCES tournament_participants(id)
+) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
+/*!40101 SET character_set_client = @saved_cs_client */;

src/EzggLanManager.py

@@ -30,7 +30,7 @@ if __name__ == "__main__":
         corner_radius_large=0,
         font=Font(from_root("src/ezgg_lan_manager/assets/fonts/joystix.otf"))
     )
-    default_attachments = [LocalData()]
+    default_attachments: list = [LocalData()]
     default_attachments.extend(init_services())
 
     lan_info = default_attachments[3].get_lan_info()
@@ -161,6 +161,16 @@ if __name__ == "__main__":
                 name="DbErrorPage",
                 url_segment="db-error",
                 build=pages.DbErrorPage,
+            ),
+            ComponentPage(
+                name="TournamentDetailsPage",
+                url_segment="tournament",
+                build=pages.TournamentDetailsPage,
+            ),
+            ComponentPage(
+                name="TournamentRulesPage",
+                url_segment="tournament-rules",
+                build=pages.TournamentRulesPage,
             )
         ],
         theme=theme,

src/ezgg_lan_manager/__init__.py

@@ -13,11 +13,12 @@ from src.ezgg_lan_manager.services.NewsService import NewsService
 from src.ezgg_lan_manager.services.ReceiptPrintingService import ReceiptPrintingService
 from src.ezgg_lan_manager.services.SeatingService import SeatingService
 from src.ezgg_lan_manager.services.TicketingService import TicketingService
+from src.ezgg_lan_manager.services.TournamentService import TournamentService
 from src.ezgg_lan_manager.services.UserService import UserService
 from src.ezgg_lan_manager.types import *
 
 # Inits services in the correct order
-def init_services() -> tuple[AccountingService, CateringService, ConfigurationService, DatabaseService, MailingService, NewsService, SeatingService, TicketingService, UserService, LocalDataService, ReceiptPrintingService]:
+def init_services() -> tuple[AccountingService, CateringService, ConfigurationService, DatabaseService, MailingService, NewsService, SeatingService, TicketingService, UserService, LocalDataService, ReceiptPrintingService, TournamentService]:
     logging.basicConfig(level=logging.DEBUG)
     configuration_service = ConfigurationService(from_root("config.toml"))
     db_service = DatabaseService(configuration_service.get_database_configuration())
@@ -30,6 +31,7 @@ def init_services() -> tuple[AccountingService, CateringService, ConfigurationSe
     receipt_printing_service = ReceiptPrintingService(seating_service, configuration_service.get_receipt_printing_configuration(), configuration_service.DEV_MODE_ACTIVE)
     catering_service = CateringService(db_service, accounting_service, user_service, receipt_printing_service)
     local_data_service = LocalDataService()
+    tournament_service = TournamentService(db_service, user_service)
 
 
-    return accounting_service, catering_service, configuration_service, db_service, mailing_service, news_service, seating_service, ticketing_service, user_service, local_data_service, receipt_printing_service
+    return accounting_service, catering_service, configuration_service, db_service, mailing_service, news_service, seating_service, ticketing_service, user_service, local_data_service, receipt_printing_service, tournament_service

src/ezgg_lan_manager/components/TournamentDetailsInfoRow.py

@@ -0,0 +1,35 @@
+from typing import Optional
+
+from rio import Component, Row, Text, TextStyle, Color
+
+
+class TournamentDetailsInfoRow(Component):
+    key: str
+    value: str
+    key_color: Optional[Color] = None
+    value_color: Optional[Color] = None
+
+
+    def build(self) -> Component:
+        return Row(
+            Text(
+                text=self.key,
+                style=TextStyle(
+                    fill=self.key_color if self.key_color is not None else self.session.theme.background_color,
+                    font_size=1
+                ),
+                margin_bottom=0.5,
+                align_x=0
+            ),
+            Text(
+                text=self.value,
+                style=TextStyle(
+                    fill=self.value_color if self.value_color is not None else self.session.theme.background_color,
+                    font_size=1
+                ),
+                margin_bottom=0.5,
+                align_x=1
+            ),
+            margin_left=4,
+            margin_right=4
+        )

src/ezgg_lan_manager/components/TournamentPageRow.py

@@ -0,0 +1,60 @@
+from typing import Literal, Callable
+
+from rio import Component, PointerEventListener, Rectangle, Image, Text, Tooltip, TextStyle, Color, Icon, Row, PointerEvent
+
+from from_root import from_root
+
+from src.ezgg_lan_manager.types.TournamentBase import TournamentStatus
+
+
+class TournamentPageRow(Component):
+    tournament_id: int
+    tournament_name: str
+    game_image_name: str
+    current_participants: int
+    max_participants: int
+    tournament_status: TournamentStatus
+    clicked_cb: Callable
+
+    def handle_click(self, _: PointerEvent) -> None:
+        self.clicked_cb(self.tournament_id)
+
+    def determine_tournament_status_icon_color_and_text(self) -> tuple[str, Literal["success", "warning", "danger"], str]:
+        if self.tournament_status == TournamentStatus.OPEN:
+            return "material/lock_open", "success", "Anmeldung geöffnet"
+        elif self.tournament_status == TournamentStatus.CLOSED:
+            return "material/lock", "danger", "Anmeldung geschlossen"
+        elif self.tournament_status == TournamentStatus.ONGOING:
+            return "material/autoplay", "warning", "Turnier läuft"
+        elif self.tournament_status == TournamentStatus.COMPLETED:
+            return "material/check_circle", "success", "Turnier beendet"
+        elif self.tournament_status == TournamentStatus.CANCELED:
+            return "material/cancel", "danger", "Turnier abgesagt"
+        elif self.tournament_status == TournamentStatus.INVITE_ONLY:
+            return "material/person_cancel", "warning", "Teilnahme nur per Einladung"
+        else:
+            raise RuntimeError(f"Unknown tournament status: {str(self.tournament_status)}")
+
+    def build(self) -> Component:
+        icon_name, color, text = self.determine_tournament_status_icon_color_and_text()
+        return PointerEventListener(
+            content=Rectangle(
+                content=Row(
+                    Image(image=from_root(f"src/ezgg_lan_manager/assets/img/games/{self.game_image_name}")),
+                    Text(self.tournament_name, style=TextStyle(fill=self.session.theme.background_color, font_size=1)),
+                    Text(f"{self.current_participants}/{self.max_participants}", style=TextStyle(fill=self.session.theme.background_color, font_size=1), justify="right", margin_right=0.5),
+                    Tooltip(anchor=Icon(icon_name, min_width=1, min_height=1, fill=color), position="top",
+                            tip=Text(text, style=TextStyle(fill=self.session.theme.background_color, font_size=0.7))),
+                    proportions=[1, 4, 1, 1],
+                    margin=.5
+                ),
+                fill=self.session.theme.hud_color,
+                margin=1,
+                margin_bottom=0,
+                stroke_color=Color.TRANSPARENT,
+                stroke_width=0.2,
+                hover_stroke_color=self.session.theme.background_color,
+                cursor="pointer"
+            ),
+            on_press=self.handle_click
+        )

src/ezgg_lan_manager/pages/ManageTournamentsPage.py

@@ -1,20 +1,85 @@
 import logging
+from datetime import datetime
+from typing import Optional
 
-from rio import Column, Component, event, TextStyle, Text, Spacer
+from from_root import from_root
+from rio import Column, Component, event, TextStyle, Text, Spacer, Row, Image, Tooltip, IconButton, Popup, Rectangle, Dropdown, ThemeContextSwitcher, Button
 
-from src.ezgg_lan_manager import ConfigurationService
+from src.ezgg_lan_manager import ConfigurationService, TournamentService, UserService
 from src.ezgg_lan_manager.components.MainViewContentBox import MainViewContentBox
+from src.ezgg_lan_manager.types.DateUtil import weekday_to_display_text
+from src.ezgg_lan_manager.types.Participant import Participant
+from src.ezgg_lan_manager.types.Tournament import Tournament
+from src.ezgg_lan_manager.types.TournamentBase import TournamentStatus
 
 logger = logging.getLogger(__name__.split(".")[-1])
 
 class ManageTournamentsPage(Component):
+    tournaments: list[Tournament] = []
+    remove_participant_popup_open: bool = False
+    cancel_options: dict[str, Optional[Participant]] = {"": None}
+    tournament_id_selected_for_participant_removal: Optional[int] = None
+    participant_selected_for_removal: Optional[Participant] = None
+
     @event.on_populate
     async def on_populate(self) -> None:
+        self.tournaments = await self.session[TournamentService].get_tournaments()
         await self.session.set_title(f"{self.session[ConfigurationService].get_lan_info().name} - Turnier Verwaltung")
 
+    async def on_start_pressed(self, tournament_id: int) -> None:
+        logger.info(f"Starting tournament with ID {tournament_id}")
+        await self.session[TournamentService].start_tournament(tournament_id)
+
+    async def on_cancel_pressed(self, tournament_id: int) -> None:
+        logger.info(f"Canceling tournament with ID {tournament_id}")
+        await self.session[TournamentService].cancel_tournament(tournament_id)
+
+    async def on_remove_participant_pressed(self, tournament_id: int) -> None:
+        tournament = await self.session[TournamentService].get_tournament_by_id(tournament_id)
+        if tournament is None:
+            return
+        users = await self.session[UserService].get_all_users()
+        try:
+            self.cancel_options = {next(filter(lambda u: u.user_id == p.id, users)).user_name: p for p in tournament.participants}
+        except StopIteration as e:
+            logger.error(f"Error trying to find user for participant: {e}")
+        self.tournament_id_selected_for_participant_removal = tournament_id
+        self.remove_participant_popup_open = True
+
+    async def on_remove_participant_confirm_pressed(self) -> None:
+        if self.participant_selected_for_removal is not None and self.tournament_id_selected_for_participant_removal is not None:
+            logger.info(f"Removing participant with ID {self.participant_selected_for_removal.id} from tournament with ID {self.tournament_id_selected_for_participant_removal}")
+        await self.session[TournamentService].unregister_user_from_tournament(self.participant_selected_for_removal.id, self.tournament_id_selected_for_participant_removal)
+        await self.on_remove_participant_cancel_pressed()
+
+    async def on_remove_participant_cancel_pressed(self) -> None:
+        self.tournament_id_selected_for_participant_removal = None
+        self.participant_selected_for_removal = None
+        self.remove_participant_popup_open = False
+
     def build(self) -> Component:
+        tournament_rows = []
+        for tournament in self.tournaments:
+            start_time_color = self.session.theme.background_color
+            if tournament.start_time < datetime.now() and tournament.status == TournamentStatus.OPEN:
+                start_time_color = self.session.theme.warning_color
+
+            tournament_rows.append(
+                Row(
+                    Image(image=from_root(f"src/ezgg_lan_manager/assets/img/games/{tournament.game_title.image_name}"), min_width=1.5, margin_right=1),
+                    Text(tournament.name, style=TextStyle(fill=self.session.theme.background_color, font_size=0.8), justify="left", margin_right=1.5),
+                    Text(f"{weekday_to_display_text(tournament.start_time.weekday())[:2]}.{tournament.start_time.strftime('%H:%M')} Uhr", style=TextStyle(fill=start_time_color, font_size=0.8), justify="left", margin_right=1),
+                    Spacer(),
+                    Tooltip(anchor=IconButton("material/play_arrow", min_size=2, margin_right=0.5, on_press=lambda: self.on_start_pressed(tournament.id)), tip="Starten"),
+                    Tooltip(anchor=IconButton("material/cancel_schedule_send", min_size=2, margin_right=0.5, on_press=lambda: self.on_cancel_pressed(tournament.id)), tip="Absagen"),
+                    Tooltip(anchor=IconButton("material/person_cancel", min_size=2, on_press=lambda: self.on_remove_participant_pressed(tournament.id)), tip="Spieler entfernen"),
+                    margin=1
+                )
+            )
+
         return Column(
-            MainViewContentBox(
+            Popup(
+                anchor=MainViewContentBox(
                     Column(
                         Text(
                             text="Turnier Verwaltung",
@@ -25,8 +90,28 @@ class ManageTournamentsPage(Component):
                             margin_top=2,
                             margin_bottom=2,
                             align_x=0.5
+                        ),
+                        *tournament_rows
                     )
-                )
+                ),
+                content=Rectangle(
+                    content=Row(
+                        ThemeContextSwitcher(
+                            content=Dropdown(options=self.cancel_options, min_width=20, selected_value=self.bind().participant_selected_for_removal), color=self.session.theme.hud_color
+                        ),
+                        Button(content="REMOVE", shape="rectangle", grow_x=False, on_press=self.on_remove_participant_confirm_pressed),
+                        Button(content="CANCEL", shape="rectangle", grow_x=False, on_press=self.on_remove_participant_cancel_pressed),
+                        margin=0.5
+                    ),
+                    min_width=30,
+                    min_height=4,
+                    fill=self.session.theme.primary_color,
+                    margin_top=3.5,
+                    stroke_width=0.3,
+                    stroke_color=self.session.theme.neutral_color,
+                ),
+                is_open=self.remove_participant_popup_open,
+                color="none"
             ),
             Spacer()
             )

src/ezgg_lan_manager/pages/TournamentDetailsPage.py

@@ -0,0 +1,252 @@
+from typing import Optional, Union, Literal
+
+from from_root import from_root
+from rio import Column, Component, event, TextStyle, Text, Row, Image, Spacer, ProgressCircle, Button, Checkbox, ThemeContextSwitcher, Link, Revealer, PointerEventListener, \
+    PointerEvent, Rectangle, Color
+
+from src.ezgg_lan_manager import ConfigurationService, TournamentService, UserService
+from src.ezgg_lan_manager.components.MainViewContentBox import MainViewContentBox
+from src.ezgg_lan_manager.components.TournamentDetailsInfoRow import TournamentDetailsInfoRow
+from src.ezgg_lan_manager.types.DateUtil import weekday_to_display_text
+from src.ezgg_lan_manager.types.Participant import Participant
+from src.ezgg_lan_manager.types.SessionStorage import SessionStorage
+from src.ezgg_lan_manager.types.Tournament import Tournament
+from src.ezgg_lan_manager.types.TournamentBase import TournamentStatus, tournament_status_to_display_text, tournament_format_to_display_texts
+from src.ezgg_lan_manager.types.User import User
+
+
+class TournamentDetailsPage(Component):
+    tournament: Optional[Union[Tournament, str]] = None
+    rules_accepted: bool = False
+    user: Optional[User] = None
+    loading: bool = False
+    participant_revealer_open: bool = False
+    current_tournament_user_list: list[User] = []  # ToDo: Integrate Teams
+
+    # State for message above register button
+    message: str = ""
+    is_success: bool = False
+
+    @event.on_populate
+    async def on_populate(self) -> None:
+        try:
+            tournament_id = int(self.session.active_page_url.query_string.split("id=")[-1])
+        except (ValueError, AttributeError, TypeError):
+            tournament_id = None
+        if tournament_id is not None:
+            self.tournament = await self.session[TournamentService].get_tournament_by_id(tournament_id)
+            if self.tournament is not None:
+                await self.session.set_title(f"{self.session[ConfigurationService].get_lan_info().name} - {self.tournament.name}")
+                self.current_tournament_user_list = await self.session[TournamentService].get_users_from_participant_list(self.tournament.participants)
+        else:
+            await self.session.set_title(f"{self.session[ConfigurationService].get_lan_info().name} - Turniere")
+
+        self.user = await self.session[UserService].get_user(self.session[SessionStorage].user_id)
+
+        self.loading_done()
+
+    def open_close_participant_revealer(self, _: PointerEvent) -> None:
+        self.participant_revealer_open = not self.participant_revealer_open
+
+    async def register_pressed(self) -> None:
+        self.loading = True
+        if not self.user:
+            return
+
+        try:
+            await self.session[TournamentService].register_user_for_tournament(self.user.user_id, self.tournament.id)
+            self.is_success = True
+            self.message = f"Erfolgreich angemeldet!"
+        except Exception as e:
+            self.is_success = False
+            self.message = f"Fehler: {e}"
+        self.loading = False
+        await self.on_populate()
+
+    async def unregister_pressed(self) -> None:
+        self.loading = True
+        if not self.user:
+            return
+
+        try:
+            await self.session[TournamentService].unregister_user_from_tournament(self.user.user_id, self.tournament.id)
+            self.is_success = True
+            self.message = f"Erfolgreich abgemeldet!"
+        except Exception as e:
+            self.is_success = False
+            self.message = f"Fehler: {e}"
+        self.loading = False
+        await self.on_populate()
+
+    async def tree_button_clicked(self) -> None:
+        pass  # ToDo: Implement tournament tree view
+
+    def loading_done(self) -> None:
+        if self.tournament is None:
+            self.tournament = "Turnier konnte nicht gefunden werden"
+        self.session[SessionStorage].subscribe_to_logged_in_or_out_event(str(self.__class__), self.on_populate)
+
+    def build(self) -> Component:
+        if self.tournament is None:
+            content = Column(
+                ProgressCircle(
+                    color="secondary",
+                    align_x=0.5,
+                    margin_top=0,
+                    margin_bottom=0
+                ),
+                min_height=10
+            )
+        elif isinstance(self.tournament, str):
+            content = Row(
+                Text(
+                    text=self.tournament,
+                    style=TextStyle(
+                        fill=self.session.theme.background_color,
+                        font_size=1
+                    ),
+                    margin_top=2,
+                    margin_bottom=2,
+                    align_x=0.5
+                )
+            )
+        else:
+            tournament_status_color = self.session.theme.background_color
+            tree_button = Spacer(grow_x=False, grow_y=False)
+            if self.tournament.status == TournamentStatus.OPEN:
+                tournament_status_color = self.session.theme.success_color
+            elif self.tournament.status == TournamentStatus.CLOSED:
+                tournament_status_color = self.session.theme.danger_color
+            elif self.tournament.status == TournamentStatus.ONGOING or self.tournament.status == TournamentStatus.COMPLETED:
+                tournament_status_color = self.session.theme.warning_color
+                tree_button = Button(
+                    content="Turnierbaum anzeigen",
+                    shape="rectangle",
+                    style="minor",
+                    color="hud",
+                    margin_left=4,
+                    margin_right=4,
+                    margin_top=1,
+                    on_press=self.tree_button_clicked
+                )
+
+            # ToDo: Integrate Teams logic
+            ids_of_participants = [p.id for p in self.tournament.participants]
+            color_key: Literal["hud", "danger"] = "hud"
+            on_press_function = self.register_pressed
+            if self.user and self.user.user_id in ids_of_participants:  # User already registered for tournament
+                button_text = "Abmelden"
+                button_sensitive_hook = True  # User has already accepted the rules previously
+                color_key = "danger"
+                on_press_function = self.unregister_pressed
+            elif self.user and self.user.user_id not in ids_of_participants:
+                button_text = "Anmelden"
+                button_sensitive_hook = self.rules_accepted
+            else:
+                # This should NEVER happen
+                button_text = "Anmelden"
+                button_sensitive_hook = False
+
+            if self.tournament.status != TournamentStatus.OPEN or self.tournament.is_full:
+                button_sensitive_hook = False  # Override button controls if tournament is not open anymore or full
+
+            if self.user:
+                accept_rules_row = Row(
+                    ThemeContextSwitcher(content=Checkbox(is_on=self.bind().rules_accepted, margin_left=4), color=self.session.theme.hud_color),
+                    Text("Ich akzeptiere die ", margin_left=1, style=TextStyle(fill=self.session.theme.background_color, font_size=0.8), overflow="nowrap", justify="right"),
+                    Link(Text("Turnierregeln", margin_right=4, style=TextStyle(fill=self.session.theme.background_color, font_size=0.8, italic=True), overflow="nowrap", justify="left"), "./tournament-rules", open_in_new_tab=True)
+                )
+                button = Button(
+                    content=button_text,
+                    shape="rectangle",
+                    style="major",
+                    color=color_key,
+                    margin_left=2,
+                    margin_right=2,
+                    is_sensitive=button_sensitive_hook,
+                    on_press=on_press_function,
+                    is_loading=self.loading
+                )
+            else:
+                # No UI here if user not logged in
+                accept_rules_row, button = Spacer(), Spacer()
+
+
+
+            content = Column(
+                Row(
+                    Image(image=from_root(f"src/ezgg_lan_manager/assets/img/games/{self.tournament.game_title.image_name}"), margin_right=1),
+                    Text(
+                        text=self.tournament.name,
+                        style=TextStyle(
+                            fill=self.session.theme.background_color,
+                            font_size=1.2
+                        ),
+                        margin_top=1,
+                        margin_bottom=1,
+                        align_x=0.5
+                    ),
+                    margin_right=6,
+                    margin_left=6
+                ),
+                Spacer(min_height=1),
+                TournamentDetailsInfoRow("Status", tournament_status_to_display_text(self.tournament.status), value_color=tournament_status_color),
+                TournamentDetailsInfoRow("Startzeit", f"{weekday_to_display_text(self.tournament.start_time.weekday())}, {self.tournament.start_time.strftime('%H:%M')} Uhr"),
+                TournamentDetailsInfoRow("Format", tournament_format_to_display_texts(self.tournament.format)[0]),
+                TournamentDetailsInfoRow("Best of", tournament_format_to_display_texts(self.tournament.format)[1]),
+                PointerEventListener(
+                    content=Rectangle(
+                        content=TournamentDetailsInfoRow(
+                            "Teilnehmer ▴" if self.participant_revealer_open else "Teilnehmer ▾",
+                            f"{len(self.tournament.participants)} / {self.tournament.max_participants}",
+                            value_color=self.session.theme.danger_color if self.tournament.is_full else self.session.theme.background_color,
+                            key_color=self.session.theme.secondary_color
+                        ),
+                        fill=Color.TRANSPARENT,
+                        cursor="pointer"
+                    ),
+                    on_press=self.open_close_participant_revealer
+                ),
+                Revealer(
+                    header=None,
+                    content=Text(
+                        "\n".join([u.user_name for u in self.current_tournament_user_list]),  # ToDo: Integrate Teams
+                        style=TextStyle(fill=self.session.theme.background_color)
+                    ),
+                    is_open=self.participant_revealer_open,
+                    margin_left=4,
+                    margin_right=4
+                ),
+                tree_button,
+                Row(
+                    Text(
+                        text="Info",
+                        style=TextStyle(
+                            fill=self.session.theme.background_color,
+                            font_size=1.2
+                        ),
+                        margin_top=1,
+                        margin_bottom=1,
+                        align_x=0.5
+                    )
+                ),
+                # FixMe: Use rio.Markdown with correct TextStyle instead to allow basic text formatting from DB-side.
+                Text(self.tournament.description, margin_left=2, margin_right=2, style=TextStyle(fill=self.session.theme.background_color, font_size=1), overflow="wrap"),
+                Spacer(min_height=2),
+                accept_rules_row,
+                Spacer(min_height=0.5),
+                Text(self.message, margin_left=2, margin_right=2, style=TextStyle(fill=self.session.theme.success_color if self.is_success else self.session.theme.danger_color, font_size=1), overflow="wrap", justify="center"),
+                Spacer(min_height=0.5),
+                button
+            )
+
+        return Column(
+            MainViewContentBox(
+                Column(
+                    Spacer(min_height=1),
+                    content,
+                    Spacer(min_height=1)
+                )
+            ),
+            align_y=0
+        )

src/ezgg_lan_manager/pages/TournamentRulesPage.py

@@ -0,0 +1,52 @@
+from rio import Column, Component, event, TextStyle, Text, Spacer
+
+from src.ezgg_lan_manager import ConfigurationService
+from src.ezgg_lan_manager.components.MainViewContentBox import MainViewContentBox
+
+RULES: list[str] = [
+    "Den Anweisungen der Turnierleitung ist stets Folge zu leisten.",
+    "Teilnehmer müssen aktiv dafür sorgen, dass Spiele ohne Verzögerungen stattfinden.",
+    "Unvollständige Teams werden ggf. zum Turnierstart entfernt.",
+    "Verzögerungen und Ausfälle sind er Turnierleitung sofort zu melden.",
+    "Jeder Spieler erstellt Screenshots am Rundenende zur Ergebnisdokumentation.",
+    "Der Verlierer trägt das Ergebnis ein, der Gewinner überprüft es.",
+    "Bei fehlendem oder falschem Ergebnis, ist sofort die Turnierorganisation zu informieren.",
+    "Von 02:00–11:00 Uhr besteht keine Spielpflicht",
+    "Täuschung, Falschangaben sowie Bugusing und Cheaten führen zur sofortigen Disqualifikation."
+]
+
+class TournamentRulesPage(Component):
+    @event.on_populate
+    async def on_populate(self) -> None:
+        await self.session.set_title(f"{self.session[ConfigurationService].get_lan_info().name} - Turnierregeln")
+
+    def build(self) -> Component:
+        return Column(
+            MainViewContentBox(
+                Column(
+                    Text(
+                        text="Turnierregeln",
+                        style=TextStyle(
+                            fill=self.session.theme.background_color,
+                            font_size=1.2
+                        ),
+                        margin_top=2,
+                        margin_bottom=2,
+                        align_x=0.5
+                    ),
+                    *[Text(
+                        f"{idx + 1}. {rule}",
+                        style=TextStyle(
+                            fill=self.session.theme.background_color,
+                            font_size=0.9
+                        ),
+                        margin_bottom=0.8,
+                        margin_left=1,
+                        margin_right=1,
+                        overflow="wrap"
+                    ) for idx, rule in enumerate(RULES)],
+                    Spacer(min_height=1)
+                )
+            ),
+            Spacer(grow_y=True)
+        )

src/ezgg_lan_manager/pages/TournamentsPage.py

@@ -1,15 +1,50 @@
-from rio import Column, Component, event, TextStyle, Text
+from rio import Column, Component, event, TextStyle, Text, Spacer, ProgressCircle
 
-from src.ezgg_lan_manager import ConfigurationService
+from src.ezgg_lan_manager import ConfigurationService, TournamentService
 from src.ezgg_lan_manager.components.MainViewContentBox import MainViewContentBox
+from src.ezgg_lan_manager.components.TournamentPageRow import TournamentPageRow
+from src.ezgg_lan_manager.types.Tournament import Tournament
 
 
 class TournamentsPage(Component):
+    tournament_data: list[Tournament] = []
+
     @event.on_populate
     async def on_populate(self) -> None:
+        self.tournament_data = await self.session[TournamentService].get_tournaments()
         await self.session.set_title(f"{self.session[ConfigurationService].get_lan_info().name} - Turniere")
 
+    def tournament_clicked(self, tournament_id: int) -> None:
+        self.session.navigate_to(f"tournament?id={tournament_id}")
+
     def build(self) -> Component:
+        tournament_page_rows = []
+        for tournament in self.tournament_data:
+            tournament_page_rows.append(
+                TournamentPageRow(
+                    tournament.id,
+                    tournament.name,
+                    tournament.game_title.image_name,
+                    len(tournament.participants),
+                    tournament.max_participants,
+                    tournament.status,
+                    self.tournament_clicked
+                )
+            )
+
+        if len(self.tournament_data) == 0:
+            content = [Column(
+                ProgressCircle(
+                    color="secondary",
+                    align_x=0.5,
+                    margin_top=0,
+                    margin_bottom=0
+                ),
+                min_height=10
+            )]
+        else:
+            content = tournament_page_rows
+
         return Column(
             MainViewContentBox(
                 Column(
@@ -20,18 +55,11 @@ class TournamentsPage(Component):
                             font_size=1.2
                         ),
                         margin_top=2,
-                        margin_bottom=0,
+                        margin_bottom=2,
                         align_x=0.5
                     ),
-                    Text(
-                        text="Aktuell ist noch kein Turnierplan hinterlegt.",
-                        style=TextStyle(
-                            fill=self.session.theme.background_color,
-                            font_size=0.9
-                        ),
-                        margin=1,
-                        overflow="wrap"
-                    )
+                    *content,
+                    Spacer(min_height=1)
                 )
             ),
             align_y=0

src/ezgg_lan_manager/pages/__init__.py

@@ -20,3 +20,5 @@ from .ManageUsersPage import ManageUsersPage
 from .ManageCateringPage import ManageCateringPage
 from .ManageTournamentsPage import ManageTournamentsPage
 from .OverviewPage import OverviewPage
+from .TournamentDetailsPage import TournamentDetailsPage
+from .TournamentRulesPage import TournamentRulesPage

src/ezgg_lan_manager/services/DatabaseService.py

@@ -1,6 +1,7 @@
 import logging
 
 from datetime import date, datetime
+from pprint import pprint
 from typing import Optional
 from decimal import Decimal
 
@@ -11,8 +12,11 @@ from src.ezgg_lan_manager.types.CateringMenuItem import CateringMenuItem, Cateri
 from src.ezgg_lan_manager.types.CateringOrder import CateringMenuItemsWithAmount, CateringOrderStatus
 from src.ezgg_lan_manager.types.ConfigurationTypes import DatabaseConfiguration
 from src.ezgg_lan_manager.types.News import News
+from src.ezgg_lan_manager.types.Participant import Participant
 from src.ezgg_lan_manager.types.Seat import Seat
 from src.ezgg_lan_manager.types.Ticket import Ticket
+from src.ezgg_lan_manager.types.Tournament import Tournament
+from src.ezgg_lan_manager.types.TournamentBase import GameTitle, TournamentFormat, TournamentStatus, ParticipantType
 from src.ezgg_lan_manager.types.Transaction import Transaction
 from src.ezgg_lan_manager.types.User import User
 
@@ -81,6 +85,54 @@ class DatabaseService:
             last_updated_at=data[11]
         )
 
+    @staticmethod
+    def _parse_tournament_format(format_as_string: str) -> TournamentFormat:
+        if format_as_string == "SE_BO_1":
+            return TournamentFormat.SINGLE_ELIMINATION_BO_1
+        elif format_as_string == "SE_BO_3":
+            return TournamentFormat.SINGLE_ELIMINATION_BO_3
+        elif format_as_string == "SE_BO_5":
+            return TournamentFormat.SINGLE_ELIMINATION_BO_5
+        elif format_as_string == "DE_BO_1":
+            return TournamentFormat.DOUBLE_ELIMINATION_BO_1
+        elif format_as_string == "DE_BO_3":
+            return TournamentFormat.DOUBLE_ELIMINATION_BO_3
+        elif format_as_string == "DE_BO_5":
+            return TournamentFormat.DOUBLE_ELIMINATION_BO_5
+        elif format_as_string == "FFA":
+            return TournamentFormat.FFA
+        else:
+            # If this happens, database is FUBAR
+            raise RuntimeError(f"Unknown TournamentFormat: {format_as_string}")
+
+    @staticmethod
+    def _parse_tournament_status(status_as_string: str) -> TournamentStatus:
+        if status_as_string == "CLOSED":
+            return TournamentStatus.CLOSED
+        elif status_as_string == "OPEN":
+            return TournamentStatus.OPEN
+        elif status_as_string == "COMPLETED":
+            return TournamentStatus.COMPLETED
+        elif status_as_string == "CANCELED":
+            return TournamentStatus.CANCELED
+        elif status_as_string == "INVITE_ONLY":
+            return TournamentStatus.INVITE_ONLY
+        elif status_as_string == "ONGOING":
+            return TournamentStatus.ONGOING
+        else:
+            # If this happens, database is FUBAR
+            raise RuntimeError(f"Unknown TournamentStatus: {status_as_string}")
+
+    @staticmethod
+    def _parse_participant_type(participant_type_as_string: str) -> ParticipantType:
+        if participant_type_as_string == "PLAYER":
+            return ParticipantType.PLAYER
+        elif participant_type_as_string == "TEAM":
+            return ParticipantType.TEAM
+        else:
+            # If this happens, database is FUBAR
+            raise RuntimeError(f"Unknown ParticipantType: {participant_type_as_string}")
+
     async def get_user_by_name(self, user_name: str) -> Optional[User]:
         async with self._connection_pool.acquire() as conn:
             async with conn.cursor(aiomysql.Cursor) as cursor:
@@ -787,3 +839,131 @@ class DatabaseService:
                     return await self.remove_profile_picture(user_id)
                 except Exception as e:
                     logger.warning(f"Error deleting user profile picture: {e}")
+
+    async def get_all_tournaments(self) -> list[Tournament]:
+        logger.info(f"Polling Tournaments...")
+        async with self._connection_pool.acquire() as conn:
+            async with conn.cursor(aiomysql.DictCursor) as cursor:
+                try:
+                    await cursor.execute(
+                        """
+                        SELECT
+                        /* =======================
+                           Tournament
+                           ======================= */
+                        t.id                AS tournament_id,
+                        t.name              AS tournament_name,
+                        t.description       AS tournament_description,
+                        t.format            AS tournament_format,
+                        t.start_time,
+                        t.status            AS tournament_status,
+                        t.max_participants,
+                        t.created_at,
+                    
+                        /* =======================
+                           Game Title
+                           ======================= */
+                        gt.id               AS game_title_id,
+                        gt.name             AS game_title_name,
+                        gt.description      AS game_title_description,
+                        gt.web_link         AS game_title_web_link,
+                        gt.image_name       AS game_title_image_name,
+                    
+                        /* =======================
+                           Tournament Participant
+                           ======================= */
+                        tp.id               AS participant_id,
+                        tp.user_id,
+                        tp.participant_type,
+                        tp.seed,
+                        tp.joined_at
+                    
+                    FROM tournaments t
+                    JOIN game_titles gt
+                        ON gt.id = t.game_title_id
+                    
+                    LEFT JOIN tournament_participants tp
+                        ON tp.tournament_id = t.id
+                    
+                    ORDER BY
+                        t.id,
+                        tp.seed IS NULL,
+                        tp.seed;
+
+                        """
+                    )
+                    await conn.commit()
+                except aiomysql.InterfaceError:
+                    pool_init_result = await self.init_db_pool()
+                    if not pool_init_result:
+                        raise NoDatabaseConnectionError
+                    return await self.get_all_tournaments()
+                except Exception as e:
+                    logger.warning(f"Error getting tournaments: {e}")
+
+                tournaments = []
+                current_tournament: Optional[Tournament] = None
+                for row in await cursor.fetchall():
+                    if current_tournament is None or current_tournament.id != row["tournament_id"]:
+                        if current_tournament is not None:
+                            tournaments.append(current_tournament)
+                        current_tournament = Tournament(
+                            id_=row["tournament_id"],
+                            name=row["tournament_name"],
+                            description=row["tournament_description"],
+                            game_title=GameTitle(
+                                name=row["game_title_name"],
+                                description=row["game_title_description"],
+                                web_link=row["game_title_web_link"],
+                                image_name=row["game_title_image_name"]
+                            ),
+                            format_=self._parse_tournament_format(row["tournament_format"]),
+                            start_time=row["start_time"],
+                            status=self._parse_tournament_status(row["tournament_status"]),
+                            participants=[Participant(id_=row["user_id"], participant_type=self._parse_participant_type(row["participant_type"]))] if row["user_id"] is not None else [],
+                            matches=None,  # ToDo: Implement
+                            rounds=[],  # ToDo: Implement
+                            max_participants=row["max_participants"]
+                        )
+                    else:
+                        current_tournament.add_participant(
+                            Participant(id_=row["user_id"], participant_type=self._parse_participant_type(row["participant_type"]))
+                        )
+                else:
+                    tournaments.append(current_tournament)
+
+            return tournaments
+
+    async def add_participant_to_tournament(self, participant: Participant, tournament: Tournament) -> None:
+        async with self._connection_pool.acquire() as conn:
+            async with conn.cursor(aiomysql.Cursor) as cursor:
+                try:
+                    await cursor.execute(
+                        "INSERT INTO tournament_participants (tournament_id, user_id, participant_type) VALUES (%s, %s, %s);",
+                        (tournament.id, participant.id, participant.participant_type.name)
+                    )
+                    await conn.commit()
+                except aiomysql.InterfaceError:
+                    pool_init_result = await self.init_db_pool()
+                    if not pool_init_result:
+                        raise NoDatabaseConnectionError
+                    return await self.add_participant_to_tournament(participant, tournament)
+                except Exception as e:
+                    logger.warning(f"Error adding participant to tournament: {e}")
+
+    async def remove_participant_from_tournament(self, participant: Participant, tournament: Tournament) -> None:
+        async with self._connection_pool.acquire() as conn:
+            async with conn.cursor(aiomysql.Cursor) as cursor:
+                try:
+                    await cursor.execute(
+                        "DELETE FROM tournament_participants WHERE (tournament_id = %s AND user_id = %s);",
+                        (tournament.id, participant.id)
+                    )
+                    await conn.commit()
+                except aiomysql.InterfaceError:
+                    pool_init_result = await self.init_db_pool()
+                    if not pool_init_result:
+                        raise NoDatabaseConnectionError
+                    return await self.remove_participant_from_tournament(participant, tournament)
+                except Exception as e:
+                    logger.warning(f"Error removing participant from tournament: {e}")

src/ezgg_lan_manager/services/TournamentService.py

@@ -0,0 +1,72 @@
+from typing import Optional
+
+from src.ezgg_lan_manager.services.DatabaseService import DatabaseService
+from src.ezgg_lan_manager.services.UserService import UserService
+from src.ezgg_lan_manager.types.Participant import Participant
+from src.ezgg_lan_manager.types.Tournament import Tournament
+from src.ezgg_lan_manager.types.TournamentBase import ParticipantType, TournamentError
+from src.ezgg_lan_manager.types.User import User
+
+
+class TournamentService:
+    def __init__(self, db_service: DatabaseService, user_service: UserService) -> None:
+        self._db_service = db_service
+        self._user_service = user_service
+
+        # Crude cache mechanism. If performance suffers, maybe implement a queue with Single-Owner-Pattern or a Lock
+        self._cache: dict[int, Tournament] = {}
+        self._cache_dirty: bool = True  # Setting this flag invokes cache update on next read
+
+    async def _update_cache(self) -> None:
+        tournaments = await self._db_service.get_all_tournaments()
+        for tournament in tournaments:
+            self._cache[tournament.id] = tournament
+        self._cache_dirty = False
+
+    async def register_user_for_tournament(self, user_id: int, tournament_id: int) -> None:
+        tournament = await self.get_tournament_by_id(tournament_id)
+        if not tournament:
+            raise TournamentError(f"No tournament with ID {tournament_id} was found")
+        participant = Participant(id_=user_id, participant_type=ParticipantType.PLAYER)
+        tournament.add_participant(participant)
+        await self._db_service.add_participant_to_tournament(participant, tournament)
+        self._cache_dirty = True
+
+    async def unregister_user_from_tournament(self, user_id: int, tournament_id: int) -> None:
+        tournament = await self.get_tournament_by_id(tournament_id)
+        if not tournament:
+            raise TournamentError(f"No tournament with ID {tournament_id} was found")
+        participant = next(filter(lambda p: p.id == user_id, tournament.participants), None)
+        if participant is not None:
+            tournament.remove_participant(participant)
+            await self._db_service.remove_participant_from_tournament(participant, tournament)
+        self._cache_dirty = True
+
+    async def get_tournaments(self) -> list[Tournament]:
+        if self._cache_dirty:
+            await self._update_cache()
+        return list(self._cache.values())
+
+    async def get_tournament_by_id(self, tournament_id: int) -> Optional[Tournament]:
+        if self._cache_dirty:
+            await self._update_cache()
+        return self._cache.get(tournament_id, None)
+
+    async def get_users_from_participant_list(self, participants: list[Participant]) -> list[User]:
+        all_users = await self._db_service.get_all_users()
+        participant_ids = [p.id for p in participants]
+        return list(filter(lambda u: u.user_id in participant_ids, all_users))
+
+    async def start_tournament(self, tournament_id: int):
+        tournament = await self.get_tournament_by_id(tournament_id)
+        if tournament:
+            tournament.start()
+        # ToDo: Write matches/round to database
+        self._cache_dirty = True
+
+    async def cancel_tournament(self, tournament_id: int):
+        tournament = await self.get_tournament_by_id(tournament_id)
+        if tournament:
+            tournament.cancel()
+        # ToDo: Update to database
+        self._cache_dirty = True

src/ezgg_lan_manager/types/DateUtil.py

@@ -0,0 +1,15 @@
+def weekday_to_display_text(weekday: int) -> str:
+    if weekday == 0:
+        return "Montag"
+    elif weekday == 1:
+        return "Dienstag"
+    elif weekday == 2:
+        return "Mittwoch"
+    elif weekday == 3:
+        return "Donnerstag"
+    elif weekday == 4:
+        return "Freitag"
+    elif weekday == 5:
+        return "Samstag"
+    else:
+        return "Sonntag"

src/ezgg_lan_manager/types/Game.py

@@ -0,0 +1,39 @@
+from typing import Optional
+
+from src.ezgg_lan_manager.types.TournamentBase import TournamentError
+
+
+class Game:
+    def __init__(self, id_: tuple[int, int], match_id: int, game_number: int, winner_id: Optional[int], score: Optional[tuple[int, int]], game_done: bool) -> None:
+        self._id = id_
+        self._match_id = match_id
+        self._game_number = game_number
+        self._winner_id = winner_id
+        self._score = score
+        self._done = game_done
+
+    @property
+    def id(self) -> tuple[int, int]:
+        return self._id
+
+    @property
+    def is_done(self) -> bool:
+        return self._done
+
+    @property
+    def winner(self) -> Optional[int]:
+        return self._winner_id
+
+    @property
+    def number(self) -> int:
+        return self._game_number
+
+
+    def finish(self, winner_id: int, score: tuple[int, int], force: bool = False) -> None:
+        """ NEVER call this outside Match or a Testsuite """
+        if self._done and not force:
+            raise TournamentError("Game is already finished")
+
+        self._winner_id = winner_id
+        self._score = score
+        self._done = True

src/ezgg_lan_manager/types/Match.py

@@ -0,0 +1,160 @@
+from collections import Counter
+
+from math import ceil
+from typing import Literal, Optional, Callable
+
+from src.ezgg_lan_manager.types.Game import Game
+from src.ezgg_lan_manager.types.TournamentBase import MatchStatus, TournamentError, Bracket
+
+
+class MatchParticipant:
+    def __init__(self, participant_id: int, slot_number: Literal[-1, 1, 2]) -> None:
+        self._participant_id = participant_id
+        if slot_number not in (-1, 1, 2):
+            raise TournamentError("Invalid slot number")
+        self.slot_number = slot_number
+
+    @property
+    def participant_id(self) -> int:
+        return self._participant_id
+
+
+class Match:
+    def __init__(self,
+                 match_id: int,
+                 tournament_id: int,
+                 round_number: int,
+                 bracket: Bracket,
+                 best_of: int,
+                 status: MatchStatus,
+                 next_match_win_lose_ids: tuple[Optional[int], Optional[int]],
+                 match_has_ended_callback: Callable) -> None:
+        self._match_id = match_id
+        self._tournament_id = tournament_id
+        self._round_number = round_number
+        self._bracket = bracket
+        self._best_of = best_of
+        self._status = status
+        self._next_match_win_id = next_match_win_lose_ids[0]
+        self._next_match_lose_id = next_match_win_lose_ids[1]
+        self._match_has_ended_callback = match_has_ended_callback
+
+        self._participants: list[MatchParticipant] = []
+        self._games: tuple[Game] = self._prepare_games()
+
+    def _prepare_games(self) -> tuple[Game]:
+        games = []
+        for game_number in range(1, self._best_of + 1):
+            game_id = (self._match_id, game_number)
+            games.append(Game(game_id, self._match_id, game_number, None, None, False))
+        return tuple(games)
+
+    @property
+    def status(self) -> MatchStatus:
+        if self._status == MatchStatus.COMPLETED:
+            return self._status
+        return self._status if self.is_fully_seeded else MatchStatus.WAITING
+
+    @status.setter
+    def status(self, new_status: MatchStatus) -> None:
+        if new_status in (MatchStatus.COMPLETED, MatchStatus.PENDING) and not self.is_fully_seeded:
+            raise TournamentError("Can't complete/pend match that is not fully seeded")
+        if self._status == MatchStatus.COMPLETED and new_status != MatchStatus.CANCELED:
+            raise TournamentError("Can't change COMPLETED match back to another active status")
+        self._status = new_status
+
+    @property
+    def games(self) -> tuple[Game]:
+        return self._games
+
+    @property
+    def winner(self) -> Optional[int]:
+        wins_needed = ceil(self._best_of / 2)
+        counts = Counter(game.winner for game in self._games if game.is_done)
+
+        for participant_id, wins in counts.items():
+            if wins >= wins_needed:
+                return participant_id
+
+        return None
+
+    @property
+    def is_fully_seeded(self) -> bool:
+        slots = {p.slot_number for p in self._participants}
+        return slots == {1, 2}
+
+    @property
+    def match_id(self) -> int:
+        return self._match_id
+
+    @property
+    def participants(self) -> list[MatchParticipant]:
+        return self._participants
+
+    @property
+    def next_match_win_id(self) -> Optional[int]:
+        return self._next_match_win_id
+
+    @property
+    def next_match_lose_id(self) -> Optional[int]:
+        return self._next_match_lose_id
+
+    def assign_participant(self, participant_id: int, slot: Literal[-1, 1, 2]) -> None:
+        if slot == -1:
+            raise TournamentError("Normal match does not support slot -1")
+        new_participant = MatchParticipant(participant_id, slot)
+        if len(self._participants) < 2 and not any(p.participant_id == participant_id for p in self._participants):
+            if len(self._participants) == 1 and self._participants[-1].slot_number == new_participant.slot_number:
+                raise TournamentError(f"Match with ID {self._match_id} encountered slot collision")
+            self._participants.append(new_participant)
+            return
+        raise TournamentError(f"Match with ID {self._match_id} already has the maximum number of participants")
+
+    def check_completion(self) -> None:
+        winner = self.winner
+        if winner is not None:
+            self._match_has_ended_callback(self)
+            self._status = MatchStatus.COMPLETED
+
+    def report_game_result(self, game_number: int, winner_id: int, score: tuple[int, int]) -> None:
+        if winner_id not in {p.participant_id for p in self._participants}:
+            raise TournamentError("Winner is not a participant of this match")
+
+        self._games[game_number - 1].finish(winner_id, score)
+
+        self.check_completion()
+
+    def cancel(self) -> None:
+        self._status = MatchStatus.CANCELED
+
+    def __repr__(self) -> str:
+        participants = ", ".join(
+            f"{p.participant_id} (slot {p.slot_number})" for p in self._participants
+        )
+        return (f"<Match id={self._match_id} round={self._round_number} bracket={self._bracket.name} "
+                f"status={self.status.name} participants=[{participants}] winner={self.winner}>")
+
+class FFAMatch(Match):
+    """
+    Specialized match that supports infinite participants
+    """
+    def __init__(self, match_id: int, tournament_id: int, round_number: int, bracket: Bracket, best_of: int, status: MatchStatus,
+                 next_match_win_lose_ids: tuple[Optional[int], Optional[int]], match_has_ended_callback: Callable) -> None:
+        super().__init__(match_id, tournament_id, round_number, bracket, best_of, status, next_match_win_lose_ids, match_has_ended_callback)
+
+    @property
+    def is_fully_seeded(self) -> bool:
+        return len(self._participants) > 1
+
+    def assign_participant(self, participant_id: int, slot: Literal[-1, 1, 2]) -> None:
+        if slot != -1:
+            raise TournamentError("FFAMatch does not support slot 1 and 2")
+        new_participant = MatchParticipant(participant_id, slot)
+        self._participants.append(new_participant)
+
+    def __repr__(self) -> str:
+        participants = ", ".join(
+            f"{p.participant_id}" for p in self._participants
+        )
+        return (f"<Match id={self._match_id} round={self._round_number} bracket={self._bracket.name} "
+                f"status={self.status.name} participants=[{participants}] winner={self.winner}>")

src/ezgg_lan_manager/types/Participant.py

@@ -0,0 +1,15 @@
+from src.ezgg_lan_manager.types.TournamentBase import ParticipantType
+
+
+class Participant:
+    def __init__(self, id_: int, participant_type: ParticipantType) -> None:
+        self._id = id_
+        self._participant_type = participant_type
+
+    @property
+    def id(self) -> int:
+        return self._id
+
+    @property
+    def participant_type(self) -> ParticipantType:
+        return self._participant_type

src/ezgg_lan_manager/types/Tournament.py

@@ -0,0 +1,368 @@
+import uuid
+from datetime import datetime
+from typing import Optional
+from math import ceil, log2
+
+from src.ezgg_lan_manager.types.Match import Match, FFAMatch
+from src.ezgg_lan_manager.types.Participant import Participant
+from src.ezgg_lan_manager.types.TournamentBase import GameTitle, TournamentFormat, TournamentStatus, TournamentError, Bracket, MatchStatus
+
+
+class Tournament:
+    def __init__(self,
+                 id_: int,
+                 name: str,
+                 description: str,
+                 game_title: GameTitle,
+                 format_: TournamentFormat,
+                 start_time: datetime,
+                 status: TournamentStatus,
+                 participants: list[Participant],
+                 matches: Optional[tuple[Match]],
+                 rounds: list[list[Match]],
+                 max_participants: int) -> None:
+        self._id = id_
+        self._name = name
+        self._description = description
+        self._game_title = game_title
+        self._format = format_
+        self._start_time = start_time
+        self._status = status
+        self._participants = participants
+        self._matches = matches
+        self._rounds = rounds
+        self._max_participants = max_participants
+
+    @property
+    def id(self) -> int:
+        return self._id
+
+    @property
+    def name(self) -> str:
+        return self._name
+
+    @property
+    def game_title(self) -> GameTitle:
+        return self._game_title
+
+    @property
+    def format(self) -> TournamentFormat:
+        return self._format
+
+    @property
+    def start_time(self) -> datetime:
+        return self._start_time
+
+    @property
+    def status(self) -> TournamentStatus:
+        return self._status
+
+    @status.setter
+    def status(self, new_status: TournamentStatus) -> None:
+        if new_status == TournamentStatus.OPEN and self._status == TournamentStatus.CLOSED and self._matches is not None:
+            # Deletes all tournament preparation !
+            self._matches = None
+        self._status = new_status
+
+
+    @property
+    def participants(self) -> list[Participant]:
+        return self._participants
+
+    @property
+    def matches(self) -> list[Match]:
+        return self._matches if self._matches else []
+
+    @property
+    def max_participants(self) -> int:
+        return self._max_participants
+
+    @property
+    def description(self) -> str:
+        return self._description
+
+    @property
+    def is_full(self) -> bool:
+        return len(self._participants) >= self._max_participants
+
+    def add_participant(self, participant: Participant) -> None:
+        if participant.id in (p.id for p in self._participants):
+            raise TournamentError(f"Participant with ID {participant.id} already registered for tournament")
+        self._participants.append(participant)
+
+    def remove_participant(self, participant: Participant) -> None:
+        if participant.id not in (p.id for p in self._participants):
+            raise TournamentError(f"Participant with ID {participant.id} not registered for tournament")
+        # ToDo: Check if tournament already started => correctly resolve matches with now missing participant
+        self._participants.remove(participant)
+
+    def cancel(self):
+        self.status = TournamentStatus.CANCELED
+
+    def match_has_ended_callback(self, match: Match) -> None:
+        if self._matches is None:
+            return
+
+        winner = match.winner
+        next_match = next((m for m in self._matches if m.match_id == match.next_match_win_id), None)
+        if next_match is not None:
+            try:
+                next_match.assign_participant(winner, 1)
+            except TournamentError:
+                next_match.assign_participant(winner, 2)
+        else:  # No next match = final round
+            pass
+
+        if match.next_match_lose_id is not None:
+            loser = next(p for p in match.participants if p.participant_id != winner)
+            next_match = next((m for m in self._matches if m.match_id == match.next_match_lose_id), None)
+            if next_match is not None:
+                try:
+                    next_match.assign_participant(loser.participant_id, 1)
+                except TournamentError:
+                    next_match.assign_participant(loser.participant_id, 2)
+            else:  # No next match = final round
+                pass
+
+    def start(self) -> None:
+        """ This builds the tournament tree and sets it to ONGOING """
+
+        def parse_format(fmt: TournamentFormat) -> tuple[str, int]:
+            if fmt.name.startswith("SINGLE_ELIMINATION"):
+                bracket = "SINGLE"
+            elif fmt.name.startswith("DOUBLE_ELIMINATION"):
+                bracket = "DOUBLE"
+            elif fmt.name.startswith("FFA"):
+                bracket = "FINAL"
+            else:
+                raise TournamentError(f"Unsupported tournament format: {fmt}")
+
+            if fmt.name.endswith("_BO_1") or fmt.name.endswith("FFA"):
+                bo = 1
+            elif fmt.name.endswith("_BO_3"):
+                bo = 3
+            elif fmt.name.endswith("_BO_5"):
+                bo = 5
+            else:
+                raise TournamentError(f"Unsupported best-of in format: {fmt}")
+
+            return bracket, bo
+
+        if len(self._participants) < 2:
+            raise TournamentError("Cannot start tournament: not enough participants")
+
+        bracket_type, best_of = parse_format(self._format)
+        num_participants = len(self.participants)
+        match_id_counter = 1
+
+        if bracket_type == "FINAL":
+            rounds: list[list[Match]] = []
+            round_matches = []
+            match = FFAMatch(
+                match_id=match_id_counter,
+                tournament_id=self._id,
+                round_number=1,
+                bracket=Bracket.FINAL,
+                best_of=best_of,
+                status=MatchStatus.WAITING,
+                next_match_win_lose_ids=(None, None),
+                match_has_ended_callback=self.match_has_ended_callback
+            )
+
+            for participant in self.participants:
+                match.assign_participant(participant.id, -1)
+
+            round_matches.append(match)
+            rounds.append(round_matches)
+            self._matches = [match]
+
+        elif bracket_type == "SINGLE":
+            # --- single-elimination as before ---
+            num_rounds = ceil(log2(num_participants))
+            rounds: list[list[Match]] = []
+
+            for round_number in range(1, num_rounds + 1):
+                num_matches = 2 ** (num_rounds - round_number)
+                round_matches = []
+                for _ in range(num_matches):
+                    match = Match(
+                        match_id=match_id_counter,
+                        tournament_id=self._id,
+                        round_number=round_number,
+                        bracket=Bracket.UPPER if round_number != num_rounds else Bracket.FINAL,
+                        best_of=best_of,
+                        status=MatchStatus.WAITING,
+                        next_match_win_lose_ids=(None, None),
+                        match_has_ended_callback=self.match_has_ended_callback
+                    )
+                    round_matches.append(match)
+                    match_id_counter += 1
+                rounds.append(round_matches)
+
+            # Link winner IDs
+            for i in range(len(rounds) - 1):
+                current_round = rounds[i]
+                next_round = rounds[i + 1]
+                for idx, match in enumerate(current_round):
+                    next_match = next_round[idx // 2]
+                    match._next_match_win_id = next_match.match_id
+
+            # Assign participants to first round
+            participant_iter = iter(self.participants)
+            first_round = rounds[0]
+            for match in first_round:
+                try:
+                    p1 = next(participant_iter)
+                    match.assign_participant(p1.id, 1)
+                except StopIteration:
+                    continue
+                try:
+                    p2 = next(participant_iter)
+                    match.assign_participant(p2.id, 2)
+                except StopIteration:
+                    if not match.is_fully_seeded:  # Auto-Bye
+                        for game in match.games:
+                            match.report_game_result(game.number, p1.id, (1, 0))
+                    continue
+
+                if match.is_fully_seeded:
+                    match.status = MatchStatus.PENDING
+
+
+            # Flatten all rounds
+            self._matches = [m for round_matches in rounds for m in round_matches]
+
+        elif bracket_type == "DOUBLE":
+            # --- double-elimination bracket generation ---
+            # ToDo: Rounds are not correctly persisted into self._rounds here. What data structure to use?
+            # ToDo: Bye-Handling not done
+            # Implementation Notice: Do not implement yet!
+            num_rounds_upper = ceil(log2(num_participants))
+            upper_rounds: list[list[Match]] = []
+            for round_number in range(1, num_rounds_upper + 1):
+                num_matches = 2 ** (num_rounds_upper - round_number)
+                round_matches = []
+                for _ in range(num_matches):
+                    match = Match(
+                        match_id=match_id_counter,
+                        tournament_id=self._id,
+                        round_number=round_number,
+                        bracket=Bracket.UPPER,
+                        best_of=best_of,
+                        status=MatchStatus.WAITING,
+                        next_match_win_lose_ids=(None, None),  # will fill later
+                        match_has_ended_callback=self.match_has_ended_callback
+                    )
+                    round_matches.append(match)
+                    match_id_counter += 1
+                upper_rounds.append(round_matches)
+
+            # Lower bracket (Losers)
+            # Double-elim lower bracket has roughly (2*num_rounds_upper - 2) rounds
+            num_rounds_lower = 2 * (num_rounds_upper - 1)
+            lower_rounds: list[list[Match]] = []
+            for round_number in range(1, num_rounds_lower + 1):
+                num_matches = 2 ** (num_rounds_lower - round_number - 1) if round_number != 1 else 2 ** (num_rounds_upper - 1)
+                round_matches = []
+                for _ in range(num_matches):
+                    match = Match(
+                        match_id=match_id_counter,
+                        tournament_id=self._id,
+                        round_number=round_number,
+                        bracket=Bracket.LOWER,
+                        best_of=best_of,
+                        status=MatchStatus.WAITING,
+                        next_match_win_lose_ids=(None, None),
+                        match_has_ended_callback=self.match_has_ended_callback
+                    )
+                    round_matches.append(match)
+                    match_id_counter += 1
+                lower_rounds.append(round_matches)
+
+            # Link upper bracket winners to next upper-round matches
+            for i in range(len(upper_rounds) - 1):
+                for idx, match in enumerate(upper_rounds[i]):
+                    next_match = upper_rounds[i + 1][idx // 2]
+                    match._next_match_win_id = next_match.match_id
+
+            # Link upper bracket losers to lower bracket first rounds
+            lower_round1 = lower_rounds[0] if lower_rounds else []
+            for idx, match in enumerate(upper_rounds[0]):
+                if idx < len(lower_round1):
+                    match._next_match_lose_id = lower_round1[idx].match_id
+
+            # Link lower bracket winners to next lower-round matches
+            for i in range(len(lower_rounds) - 1):
+                for idx, match in enumerate(lower_rounds[i]):
+                    next_match = lower_rounds[i + 1][idx // 2]
+                    match._next_match_win_id = next_match.match_id
+
+            # Final match
+            final_match = Match(
+                match_id=match_id_counter,
+                tournament_id=self._id,
+                round_number=max(num_rounds_upper, num_rounds_lower) + 1,
+                bracket=Bracket.FINAL,
+                best_of=best_of,
+                status=MatchStatus.WAITING,
+                next_match_win_lose_ids=(None, None),
+                match_has_ended_callback=self.match_has_ended_callback
+            )
+            match_id_counter += 1
+
+            # Last upper winner and last lower winner feed into final
+            if upper_rounds:
+                upper_last = upper_rounds[-1][0]
+                upper_last._next_match_win_id = final_match.match_id
+            if lower_rounds:
+                lower_last = lower_rounds[-1][0]
+                lower_last._next_match_win_id = final_match.match_id
+
+            # Flatten all matches
+            self._matches = [m for round_matches in upper_rounds + lower_rounds for m in round_matches] + [final_match]
+
+            # Assign participants to first upper round
+            participant_iter = iter(self._participants)
+            first_upper = upper_rounds[0]
+            for match in first_upper:
+                try:
+                    p1 = next(participant_iter)
+                    match.assign_participant(p1.id, 1)
+                except StopIteration:
+                    continue
+                try:
+                    p2 = next(participant_iter)
+                    match.assign_participant(p2.id, 2)
+                except StopIteration:
+                    if not match.is_fully_seeded:  # Auto-Bye
+                        for game in match.games:
+                            match.report_game_result(game.number, p1.id, (1, 0))
+                        match.check_completion()
+                    continue
+
+                if match.is_fully_seeded:
+                    match.status = MatchStatus.PENDING
+
+        else:
+            raise TournamentError(f"Unknown bracket type: {bracket_type}")
+
+        self._status = TournamentStatus.ONGOING
+        for match in self._matches:
+            match.check_completion()
+
+
+def generate_new_tournament(name: str, description: str, game_title: GameTitle, format_: TournamentFormat, start_time: datetime, max_participants: int, initial_status: TournamentStatus = TournamentStatus.CLOSED) -> Tournament:
+    id_ = uuid.uuid4().int
+    return Tournament(
+        id_,
+        name,
+        description,
+        game_title,
+        format_,
+        start_time,
+        initial_status,
+        list(),
+        None,
+        list(),
+        max_participants
+    )

src/ezgg_lan_manager/types/TournamentBase.py

@@ -0,0 +1,87 @@
+from dataclasses import dataclass
+from enum import Enum
+
+
+@dataclass
+class GameTitle:
+    name: str
+    description: str
+    web_link: str
+    image_name: str  # Name of the image in assets/img/games
+
+class TournamentFormat(Enum):
+    SINGLE_ELIMINATION_BO_1 = 1
+    SINGLE_ELIMINATION_BO_3 = 2
+    SINGLE_ELIMINATION_BO_5 = 3
+    DOUBLE_ELIMINATION_BO_1 = 4
+    DOUBLE_ELIMINATION_BO_3 = 5
+    DOUBLE_ELIMINATION_BO_5 = 6
+    FFA = 7
+
+def tournament_format_to_display_texts(tournament_format: TournamentFormat) -> tuple[str, str]:
+    """ Returns tuple where idx 0 is SE/DE/FFA string and idx 1 is match count """
+    if tournament_format == TournamentFormat.SINGLE_ELIMINATION_BO_1:
+        return "Single Elimination", "1"
+    elif tournament_format == TournamentFormat.SINGLE_ELIMINATION_BO_3:
+        return "Single Elimination", "3"
+    elif tournament_format == TournamentFormat.SINGLE_ELIMINATION_BO_5:
+        return "Single Elimination", "5"
+    elif tournament_format == TournamentFormat.DOUBLE_ELIMINATION_BO_1:
+        return "Double Elimination", "1"
+    elif tournament_format == TournamentFormat.DOUBLE_ELIMINATION_BO_3:
+        return "Double Elimination", "3"
+    elif tournament_format == TournamentFormat.DOUBLE_ELIMINATION_BO_5:
+        return "Double Elimination", "5"
+    elif tournament_format == TournamentFormat.FFA:
+        return "Free for All", "1"
+    else:
+        raise RuntimeError(f"Unknown tournament status: {str(tournament_format)}")
+
+
+class TournamentStatus(Enum):
+    CLOSED = 1
+    OPEN = 2
+    COMPLETED = 3
+    CANCELED = 4
+    INVITE_ONLY = 5  # For Show-matches
+    ONGOING = 6
+
+def tournament_status_to_display_text(tournament_status: TournamentStatus) -> str:
+    if tournament_status == TournamentStatus.OPEN:
+        return "Offen"
+    elif tournament_status == TournamentStatus.CLOSED:
+        return "Geschlossen"
+    elif tournament_status == TournamentStatus.ONGOING:
+        return "Läuft"
+    elif tournament_status == TournamentStatus.COMPLETED:
+        return "Abgeschlossen"
+    elif tournament_status == TournamentStatus.CANCELED:
+        return "Abgesagt"
+    elif tournament_status == TournamentStatus.INVITE_ONLY:
+        return "Invite-only"
+    else:
+        raise RuntimeError(f"Unknown tournament status: {str(tournament_status)}")
+
+
+class TournamentError(Exception):
+    def __init__(self, message: str) -> None:
+        super().__init__(message)
+
+
+class ParticipantType(Enum):
+    PLAYER = 1
+    TEAM = 2  # ToDo: Teams are not yet supported
+
+
+class Bracket(Enum):
+    UPPER = 1
+    LOWER = 2
+    FINAL = 3
+
+
+class MatchStatus(Enum):
+    WAITING = 1    # Participants incomplete
+    PENDING = 2    # Match is ready to be played
+    DELAYED = 3    # Same as PENDING, but with flag for UI
+    COMPLETED = 4  # Match has been played
+    CANCELED = 5   # Match got canceled, "bye" for followup

testing/unittests/TournamentDomainTests.py

@@ -0,0 +1,82 @@
+import unittest
+from datetime import datetime
+
+from src.ezgg_lan_manager.types.TournamentBase import ParticipantType
+from src.ezgg_lan_manager.types.Tournament import generate_new_tournament, GameTitle, TournamentFormat, TournamentStatus, TournamentError, Participant, MatchStatus
+
+
+class TournamentDomainTests(unittest.TestCase):
+    def setUp(self):
+        # Generic Tournament config
+        self.name = "Tetris 1vs1"
+        self.description = "Just play Tetris, yo"
+        self.game_title = GameTitle("Tetris99", "Some Description", "https://de.wikipedia.org/wiki/Tetris_99", "tetris.png")
+        self.format_ = TournamentFormat.SINGLE_ELIMINATION_BO_3
+        self.start_time = datetime(year=2100, month=6, day=23, hour=16, minute=30, second=0)
+        self.initial_status = TournamentStatus.CLOSED
+
+        # Generic Participants
+        self.participant_a = Participant(1, ParticipantType.PLAYER)
+        self.participant_b = Participant(2, ParticipantType.PLAYER)
+        self.participant_c = Participant(3, ParticipantType.PLAYER)
+
+    def test_tournament_without_participants_can_not_be_started(self) -> None:
+        tournament_under_test = generate_new_tournament(self.name, self.description, self.game_title, self.format_, self.start_time, 32, self.initial_status)
+        with self.assertRaises(TournamentError):
+            tournament_under_test.start()
+
+    def test_adding_the_same_participant_twice_leads_to_exception(self) -> None:
+        tournament_under_test = generate_new_tournament(self.name, self.description, self.game_title, self.format_, self.start_time, 32, self.initial_status)
+        tournament_under_test.add_participant(self.participant_a)
+        with self.assertRaises(TournamentError):
+            tournament_under_test.add_participant(self.participant_a)
+
+    def test_single_elimination_bo3_tournament_gets_generated_correctly(self) -> None:
+        tournament_under_test = generate_new_tournament(self.name, self.description, self.game_title, self.format_, self.start_time, 32, self.initial_status)
+
+        tournament_under_test.add_participant(self.participant_a)
+        tournament_under_test.add_participant(self.participant_b)
+        tournament_under_test.add_participant(self.participant_c)
+        tournament_under_test.start()
+
+        # Assert Tournament was switched to ONGOING
+        self.assertEqual(TournamentStatus.ONGOING, tournament_under_test.status)
+
+        matches_in_tournament = sorted(tournament_under_test.matches, key=lambda m: m.match_id)
+
+        # First match
+        fm = matches_in_tournament[0]
+        self.assertEqual(fm.status, MatchStatus.PENDING)
+        self.assertEqual(fm.participants[0].participant_id, self.participant_a.id)
+        self.assertEqual(fm.participants[0].slot_number, 1)
+        self.assertEqual(fm.participants[1].participant_id, self.participant_b.id)
+        self.assertEqual(fm.participants[1].slot_number, 2)
+
+        # Second match (Bye)
+        sm = matches_in_tournament[1]
+        self.assertEqual(sm.status, MatchStatus.COMPLETED)
+        self.assertEqual(sm.participants[0].participant_id, self.participant_c.id)
+        self.assertEqual(sm.participants[0].slot_number, 1)
+        self.assertEqual(sm.participants[0].participant_id, sm.winner)
+
+        # Third match (Final)
+        sm = matches_in_tournament[2]
+        self.assertEqual(sm.status, MatchStatus.WAITING)
+        self.assertEqual(sm.participants[0].participant_id, self.participant_c.id)
+        self.assertEqual(sm.participants[0].slot_number, 1)
+        self.assertIsNone(sm.winner)
+
+    def test_ffa_tournament_with_15_participants_gets_generated_correctly(self) -> None:
+        tournament_under_test = generate_new_tournament("Among Us", "It's Among Us", GameTitle("Among Us", "", "", ""), TournamentFormat.FFA, self.start_time, 32, TournamentStatus.OPEN)
+
+        for i in range(1, 16):
+            tournament_under_test.add_participant(Participant(i, ParticipantType.PLAYER))
+        tournament_under_test.start()
+
+        # Assert Tournament was switched to ONGOING
+        self.assertEqual(TournamentStatus.ONGOING, tournament_under_test.status)
+
+        matches_in_tournament = sorted(tournament_under_test.matches, key=lambda m: m.match_id)
+
+        self.assertEqual(1, len(matches_in_tournament))
+        self.assertEqual(15, len(matches_in_tournament[0].participants))