Backend

backend/app/__init__.py

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+# backend/app/__init__.py

backend/app/constants.py

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+# backend/app/constants.py
+from enum import Enum
+
+
+class TournamentTypes(str, Enum):
+    SINGLE = "Single"
+    DOUBLE = "Double"
+    ROUND_ROBIN = "Round_Robin"
+
+
+class BracketType(str, Enum):
+    WINNERS = "Winners"
+    LOSERS = "Losers"
+    FINALS = "Finals"
+
+
+class MatchSourceType(str, Enum):
+    WINNER = "Winner"
+    LOSER = "Loser"
+
+
+class MatchStatus(str, Enum):
+    PENDING = "Pending"
+    SCHEDULED = "Scheduled"
+    FINISHED = "Finished"
+
+
+class WinnerSide(str, Enum):
+    P1 = "p1"
+    P2 = "p2"
+    NONE = "none"
+
+
+SUCCESS = {"status": "ok"}

backend/app/core/__init__.py

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+# backend\app\core\__init__.py

backend/app/core/auth.py

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+# backend/app/core/auth.py
+from datetime import datetime, timedelta, timezone
+from typing import Optional
+from fastapi import Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordBearer
+import jwt
+from jwt.exceptions import PyJWTError
+
+from .config import SECRET_KEY, ALGORITHM, ADMIN_USER
+
+oauth2_scheme = OAuth2PasswordBearer(tokenUrl="auth/token")
+oauth2_scheme_optional = OAuth2PasswordBearer(tokenUrl="auth/token", auto_error=False)
+
+
+def create_access_token(data: dict, expires_delta: Optional[timedelta] = None):
+    to_encode = data.copy()
+    if expires_delta:
+        expire = datetime.now(timezone.utc) + expires_delta
+    else:
+        expire = datetime.now(timezone.utc) + timedelta(minutes=15)
+
+    to_encode.update({"exp": expire})
+
+    encoded_jwt = jwt.encode(to_encode, SECRET_KEY, algorithm=ALGORITHM)
+    return encoded_jwt
+
+
+async def get_current_user(token: str = Depends(oauth2_scheme)):
+    credentials_exception = HTTPException(
+        status_code=status.HTTP_401_UNAUTHORIZED,
+        detail="Could not validate credentials",
+        headers={"WWW-Authenticate": "Bearer"},
+    )
+
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        username = payload.get("sub")
+
+        if username is None or username != ADMIN_USER:
+            raise credentials_exception
+
+    except PyJWTError:
+        raise credentials_exception
+
+    return username
+
+
+async def get_optional_user(
+    token: Optional[str] = Depends(oauth2_scheme_optional),
+) -> Optional[str]:
+    if not token:
+        return None
+
+    try:
+        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
+        username = payload.get("sub")
+        if username == ADMIN_USER:
+            return username
+    except Exception:
+        pass
+
+    return None

backend/app/core/config.py

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+# backend/app/core/config.py
+import os
+import secrets
+from pwdlib import PasswordHash
+
+DB_PATH = os.getenv("DB_PATH", "./tournaments.db")
+
+# Security Config
+SECRET_KEY = os.getenv("SECRET_KEY", secrets.token_hex(32))
+ALGORITHM = "HS256"
+ACCESS_TOKEN_EXPIRE_MINUTES = 60 * 24  # 24 hours
+
+# Admin Credentials
+ADMIN_USER = os.getenv("ADMIN_USER", "admin")
+ADMIN_PASSWORD = os.getenv("ADMIN_PASSWORD", "admin")
+
+password_hash = PasswordHash.recommended()
+ADMIN_HASH = password_hash.hash(ADMIN_PASSWORD)
+
+
+def verify_password(plain_password, hashed_password):
+    return password_hash.verify(plain_password, hashed_password)
+
+
+def get_password_hash(password):
+    return password_hash.hash(password)

backend/app/core/utils.py

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+# backend\app\core\utils.py

backend/app/core/websocket_manager.py

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+# backend/app/core/websocket_manager.py
+import asyncio
+
+from fastapi import WebSocket
+
+
+class ConnectionManager:
+    def __init__(self):
+        self.active_connections: set[WebSocket] = set()
+
+    async def connect(self, websocket: WebSocket):
+        await websocket.accept()
+        self.active_connections.add(websocket)
+
+    def disconnect(self, websocket: WebSocket):
+        self.active_connections.discard(websocket)
+
+    async def broadcast(self, message: dict):
+        if not self.active_connections:
+            return
+
+        connections_snapshot = list(self.active_connections)
+
+        async def send_safe(ws: WebSocket):
+            try:
+                await ws.send_json(message)
+            except Exception:
+                self.disconnect(ws)
+
+        await asyncio.gather(*(send_safe(ws) for ws in connections_snapshot))
+
+
+manager = ConnectionManager()
+
+
+async def send_ws_update(id: str):
+    await asyncio.gather(
+        manager.broadcast({"type": "dashboard_update"}),
+        manager.broadcast({"type": "tournament_update", "id": id}),
+    )

backend/app/crud.py

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+# backend/app/crud.py
+from sqlalchemy.orm import Session
+from uuid import uuid4
+from . import models, schemas, logic
+
+
+# --- HELPER ---
+def _rebuild_bracket(db: Session, t: models.Tournament):
+    """
+    Internal helper to regenerate matches, refresh the bracket logic,
+    and update the schedule. Used whenever teams or type changes.
+    """
+    db.refresh(t)
+    current_team_names = [team.name for team in t.teams]
+    match_data = logic.generate_structure(current_team_names, t.type)
+    t.matches = [models.Match(**m, tournament_id=t.id) for m in match_data]
+
+    # 4. Run Logic
+    logic.refresh_bracket(t)
+    logic.update_schedule(t)
+
+
+# --- TOURNAMENTS ---
+def get_tournaments(db: Session):
+    return db.query(models.Tournament).all()
+
+
+def get_tournament(db: Session, tournament_id: str):
+    return (
+        db.query(models.Tournament)
+        .filter(models.Tournament.id == tournament_id)
+        .first()
+    )
+
+
+def create_tournament(db: Session, data: schemas.TournamentCreate):
+    t_id = str(uuid4())[:8]
+
+    new_t = models.Tournament(
+        id=t_id,
+        name=data.name,
+        code=data.code,
+        timestamp=data.timestamp,
+        duration=data.duration,
+        type=data.type,
+    )
+
+    new_t.teams = [models.Team(name=n) for n in data.teams]
+    new_t.courts = [models.Court(name=n) for n in data.courts]
+    match_data = logic.generate_structure(data.teams, data.type)
+    new_t.matches = [models.Match(**m, tournament_id=t_id) for m in match_data]
+
+    logic.refresh_bracket(new_t)
+    logic.update_schedule(new_t)
+
+    db.add(new_t)
+    db.commit()
+    db.refresh(new_t)
+    return new_t
+
+
+def delete_tournament(db: Session, tournament_id: str) -> bool:
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return False
+
+    db.delete(t)
+    db.commit()
+    return True
+
+
+def update_tournament_details(
+    db: Session, tournament_id: str, data: schemas.TournamentUpdate
+):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    update_data = data.model_dump(exclude_unset=True)
+    incoming_type = update_data.get("type")
+    type_changed = incoming_type and incoming_type != t.type
+
+    for key, value in update_data.items():
+        setattr(t, key, value)
+
+    if type_changed:
+        _rebuild_bracket(db, t)
+    else:
+        logic.update_schedule(t)
+
+    db.commit()
+    db.refresh(t)
+    return t
+
+
+def update_tournament_teams(db: Session, tournament_id: str, new_team_names: list[str]):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    current_team_names = [team.name for team in t.teams]
+
+    if new_team_names == current_team_names:
+        return t
+
+    t.teams = [models.Team(name=n, tournament_id=t.id) for n in new_team_names]
+
+    db.flush()
+    _rebuild_bracket(db, t)
+
+    db.commit()
+    db.refresh(t)
+    return t
+
+
+def update_tournament_courts(
+    db: Session, tournament_id: str, new_court_names: list[str]
+):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    current_court_names = [c.name for c in t.courts]
+
+    if set(new_court_names) == set(current_court_names):
+        return t
+
+    t.courts = [models.Court(name=c, tournament_id=t.id) for c in new_court_names]
+
+    logic.update_schedule(t)
+
+    db.commit()
+    db.refresh(t)
+    return t
+
+
+def get_tournament_matches(db: Session, tournament_id: str):
+    return (
+        db.query(models.Match)
+        .filter(models.Match.tournament_id == tournament_id)
+        .order_by(models.Match.timestamp, models.Match.court_name)
+        .all()
+    )
+
+
+def get_match(db: Session, tournament_id: str, match_id: str):
+    return (
+        db.query(models.Match)
+        .filter(models.Match.tournament_id == tournament_id)
+        .filter(models.Match.id == match_id)
+        .first()
+    )
+
+
+# --- TEAMS ---
+def get_teams(db: Session, tournament_id: str):
+    return (
+        db.query(models.Team).filter(models.Team.tournament_id == tournament_id).all()
+    )
+
+
+def create_team(db: Session, tournament_id: str, team_data: schemas.TeamCreate):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    new_team = models.Team(name=team_data.name, tournament_id=tournament_id)
+    db.add(new_team)
+    db.flush()
+
+    _rebuild_bracket(db, t)
+
+    db.commit()
+    db.refresh(new_team)
+    return new_team
+
+
+def delete_team(db: Session, tournament_id: str, team_id: int):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    team = db.get(models.Team, team_id)
+    if not team or team.tournament_id != tournament_id:
+        return None
+
+    db.delete(team)
+    db.flush()
+
+    _rebuild_bracket(db, t)
+
+    db.commit()
+    return True
+
+
+# --- COURTS ---
+def get_courts(db: Session, tournament_id: str):
+    return (
+        db.query(models.Court).filter(models.Court.tournament_id == tournament_id).all()
+    )
+
+
+def create_court(db: Session, tournament_id: str, court_data: schemas.CourtCreate):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    new_court = models.Court(name=court_data.name, tournament_id=tournament_id)
+    db.add(new_court)
+    db.flush()
+
+    db.refresh(t)
+    logic.update_schedule(t)
+
+    db.commit()
+    db.refresh(new_court)
+    return new_court
+
+
+def delete_court(db: Session, tournament_id: str, court_id: int):
+    t = get_tournament(db, tournament_id)
+    if not t:
+        return None
+
+    court = db.get(models.Court, court_id)
+    if not court or court.tournament_id != tournament_id:
+        return None
+
+    db.delete(court)
+    db.flush()
+
+    db.refresh(t)
+    logic.update_schedule(t)
+
+    db.commit()
+    return True

backend/app/database.py

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+# backend/app/database.py
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, DeclarativeBase
+from .core.config import DB_PATH
+
+
+SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_PATH}"
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False},
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+class Base(DeclarativeBase):
+    pass
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()

backend/app/logic.py

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+# backend/app/logic.py
+import math
+from datetime import datetime, timedelta
+from typing import List, Dict, Any
+
+from .constants import BracketType, MatchSourceType, MatchStatus, TournamentTypes
+from .models import Tournament
+
+
+def get_seeded_positions(num_slots, teams):
+    seeds = [1, 2]
+    while len(seeds) < num_slots:
+        next_seeds = []
+        for s in seeds:
+            next_seeds.append(s)
+            next_seeds.append(2 * len(seeds) + 1 - s)
+        seeds = next_seeds
+    return [teams[s - 1] if s <= len(teams) else "BYE" for s in seeds]
+
+
+def generate_structure(
+    teams: List[str], type: TournamentTypes = TournamentTypes.DOUBLE
+) -> List[Dict[str, Any]]:
+    count = len(teams)
+    if count < 2:
+        return []
+
+    power = math.ceil(math.log2(count)) if count > 0 else 1
+    size = 2**power
+    seeded_teams = get_seeded_positions(size, teams)
+
+    class Node:
+        def __init__(self, id, bracket: BracketType, round_n: int):
+            self.id = str(id)
+            self.bracket = bracket
+            self.round = round_n
+            self.p1: str | None = None
+            self.p2: str | None = None
+
+            self.winner_next_match_id: str | None = None
+            self.loser_next_match_id: str | None = None
+            self.previous_match_p1_id: str | None = None
+            self.previous_match_p2_id: str | None = None
+
+            self.source_p1_type: MatchSourceType | None = None
+            self.source_p2_type: MatchSourceType | None = None
+
+        def to_dict(self):
+            return {
+                "id": self.id,
+                # Pass Enum OBJECTS, not strings. SQLAlchemy handles the rest.
+                "bracket": self.bracket,
+                "round": self.round,
+                "p1_name": self.p1,
+                "p2_name": self.p2,
+                "status": MatchStatus.PENDING,
+                "previous_match_p1_id": self.previous_match_p1_id,
+                "previous_match_p2_id": self.previous_match_p2_id,
+                "source_p1_type": self.source_p1_type,
+                "source_p2_type": self.source_p2_type,
+                "winner_next_match_id": self.winner_next_match_id,
+                "loser_next_match_id": self.loser_next_match_id,
+            }
+
+    nodes: List[Node] = []
+    match_counter = 1
+
+    def create_node(bracket: BracketType, round_n: int):
+        nonlocal match_counter
+        n = Node(match_counter, bracket, round_n)
+        match_counter += 1
+        nodes.append(n)
+        return n
+
+    # --- Winners Bracket ---
+    wb_rounds = power
+    wb_matches = {r: [] for r in range(1, wb_rounds + 1)}
+
+    for r in range(1, wb_rounds + 1):
+        for _ in range(size // (2**r)):
+            wb_matches[r].append(create_node(BracketType.WINNERS, r))
+
+    # Link Winners
+    for r in range(1, wb_rounds):
+        for i, m in enumerate(wb_matches[r]):
+            target = wb_matches[r + 1][i // 2]
+
+            m.winner_next_match_id = target.id
+            if i % 2 == 0:
+                target.previous_match_p1_id = m.id
+                target.source_p1_type = MatchSourceType.WINNER
+            else:
+                target.previous_match_p2_id = m.id
+                target.source_p2_type = MatchSourceType.WINNER
+
+    for i, m in enumerate(wb_matches[1]):
+        m.p1 = seeded_teams[i * 2]
+        m.p2 = seeded_teams[i * 2 + 1]
+
+    # --- Losers Bracket ---
+    if type == TournamentTypes.DOUBLE and size >= 4:
+        lb_rounds = (wb_rounds - 1) * 2
+        lb_matches = {r: [] for r in range(1, lb_rounds + 1)}
+        current_count = size // 4
+
+        for r in range(1, lb_rounds + 1):
+            for _ in range(current_count):
+                lb_matches[r].append(create_node(BracketType.LOSERS, r))
+            if r % 2 == 0:
+                current_count //= 2
+
+        # Link Losers Internal
+        for r in range(1, lb_rounds):
+            for i, m in enumerate(lb_matches[r]):
+                target = (
+                    lb_matches[r + 1][i] if r % 2 != 0 else lb_matches[r + 1][i // 2]
+                )
+
+                m.winner_next_match_id = target.id
+                if r % 2 != 0:
+                    target.previous_match_p1_id = m.id
+                    target.source_p1_type = MatchSourceType.WINNER
+                else:
+                    if i % 2 == 0:
+                        target.previous_match_p1_id = m.id
+                        target.source_p1_type = MatchSourceType.WINNER
+                    else:
+                        target.previous_match_p2_id = m.id
+                        target.source_p2_type = MatchSourceType.WINNER
+
+        # Link Losers Drop-down
+        for r in range(1, wb_rounds):
+            drop_round = 1 if r == 1 else (r - 1) * 2
+            wb_layer = wb_matches[r]
+            lb_layer = lb_matches[drop_round]
+
+            for i, wb_m in enumerate(wb_layer):
+                target = (
+                    lb_layer[i // 2]
+                    if r == 1
+                    else (lb_layer[i] if i < len(lb_layer) else lb_layer[-1])
+                )
+                slot = "p1" if (r == 1 and i % 2 == 0) else "p2"
+
+                wb_m.loser_next_match_id = target.id
+                if slot == "p1":
+                    target.previous_match_p1_id = wb_m.id
+                    target.source_p1_type = MatchSourceType.LOSER
+                else:
+                    target.previous_match_p2_id = wb_m.id
+                    target.source_p2_type = MatchSourceType.LOSER
+
+        # Finals Linking
+        wb_final = wb_matches[wb_rounds][0]
+        lb_final = lb_matches[lb_rounds][0]
+
+        wb_final.loser_next_match_id = lb_final.id
+        lb_final.previous_match_p2_id = wb_final.id
+        lb_final.source_p2_type = MatchSourceType.LOSER
+
+        final = create_node(BracketType.FINALS, 1)
+        wb_final.winner_next_match_id = final.id
+        lb_final.winner_next_match_id = final.id
+
+        final.previous_match_p1_id = wb_final.id
+        final.source_p1_type = MatchSourceType.WINNER
+        final.previous_match_p2_id = lb_final.id
+        final.source_p2_type = MatchSourceType.WINNER
+
+    return [n.to_dict() for n in nodes]
+
+
+def refresh_bracket(t_obj: Tournament):
+    matches_map = {m.id: m for m in t_obj.matches}
+
+    for _ in range(20):
+        for m in t_obj.matches:
+
+            def resolve(src_id, type_):
+                if not src_id or src_id not in matches_map:
+                    return None
+                src = matches_map[src_id]
+
+                if type_ == MatchSourceType.WINNER:
+                    return src.winner
+                if type_ == MatchSourceType.LOSER:
+                    if src.winner == "BYE":
+                        return "BYE"
+                    if src.winner:
+                        return src.p1_name if src.winner == src.p2_name else src.p2_name
+                    return None
+                return None
+
+            if m.previous_match_p1_id:
+                m.p1_name = resolve(m.previous_match_p1_id, m.source_p1_type)
+            if m.previous_match_p2_id:
+                m.p2_name = resolve(m.previous_match_p2_id, m.source_p2_type)
+
+            # BYE Auto-Win
+            if not m.winner and (m.p1_name == "BYE" or m.p2_name == "BYE"):
+                if m.p1_name == "BYE" and m.p2_name == "BYE":
+                    m.winner = "BYE"
+                elif m.p1_name == "BYE":
+                    m.winner = m.p2_name
+                else:
+                    m.winner = m.p1_name
+                m.status = MatchStatus.FINISHED
+
+            # Reset Logic
+            if m.status == MatchStatus.FINISHED and m.winner != "BYE":
+                has_p1 = bool(m.p1_name)
+                has_p2 = bool(m.p2_name)
+                if (
+                    not has_p1
+                    or not has_p2
+                    or (m.winner != m.p1_name and m.winner != m.p2_name)
+                ):
+                    m.winner = None
+                    m.status = MatchStatus.PENDING
+                    m.sets = []
+
+    # Numbering
+    display_counter = 1
+    sorted_matches = sorted(
+        t_obj.matches, key=lambda x: int(x.id) if x.id.isdigit() else 999
+    )
+    for m in sorted_matches:
+        if m.winner == "BYE" or m.p1_name == "BYE" or m.p2_name == "BYE":
+            m.number = None
+        else:
+            m.number = display_counter
+            display_counter += 1
+
+    # NO LABEL GENERATION HERE - FRONTEND HANDLES IT
+
+
+def update_schedule(t_obj: Tournament):
+    match_map = {m.id: m for m in t_obj.matches}
+    depth_cache = {}
+
+    def get_depth(mid):
+        if mid not in match_map:
+            return 0
+        if mid in depth_cache:
+            return depth_cache[mid]
+        m = match_map[mid]
+        d = 1 + max(
+            get_depth(m.winner_next_match_id) if m.winner_next_match_id else 0,
+            get_depth(m.loser_next_match_id) if m.loser_next_match_id else 0,
+        )
+        depth_cache[mid] = d
+        return d
+
+    criticality_map = {}
+    for m in t_obj.matches:
+        criticality_map[m.id] = get_depth(m.id)
+
+    start_time = t_obj.timestamp
+    duration = t_obj.duration
+
+    finish_times: Dict[str, datetime] = {}
+    court_timers: Dict[str, datetime] = {c.name: start_time for c in t_obj.courts}
+
+    unscheduled = []
+
+    # 1. Initialize
+    for m in t_obj.matches:
+        if m.winner == "BYE" or m.p1_name == "BYE" or m.p2_name == "BYE":
+            finish_times[m.id] = start_time
+            m.status = MatchStatus.FINISHED
+        elif m.status == MatchStatus.FINISHED:
+            match_start = m.timestamp if m.timestamp else start_time
+            fin = match_start + timedelta(minutes=duration)
+            finish_times[m.id] = fin
+            if m.court_name and m.court_name in court_timers:
+                if fin > court_timers[m.court_name]:
+                    court_timers[m.court_name] = fin
+        else:
+            m.timestamp = None
+            m.court_name = None
+            m.status = MatchStatus.PENDING
+            unscheduled.append(m)
+
+    if not court_timers:
+        return
+
+    # 2. Schedule
+    loop = len(t_obj.matches) * 2
+    while unscheduled and loop > 0:
+        loop -= 1
+        best_court = min(court_timers, key=lambda k: court_timers[k])
+        current_time_slot = court_timers[best_court]
+
+        ready = []
+        for m in unscheduled:
+            p1_r = (
+                finish_times.get(m.previous_match_p1_id, start_time)
+                if m.previous_match_p1_id
+                else start_time
+            )
+            p2_r = (
+                finish_times.get(m.previous_match_p2_id, start_time)
+                if m.previous_match_p2_id
+                else start_time
+            )
+
+            if max(p1_r, p2_r) <= current_time_slot:
+                ready.append(m)
+
+        if ready:
+            ready.sort(key=lambda x: (-criticality_map.get(x.id, 0), x.round))
+            cand = ready[0]
+            cand.court_name = best_court
+            cand.timestamp = current_time_slot
+            cand.status = MatchStatus.SCHEDULED
+
+            fin = current_time_slot + timedelta(minutes=duration)
+            finish_times[cand.id] = fin
+            court_timers[best_court] = fin
+            unscheduled.remove(cand)
+        else:
+            next_wake = None
+            for m in unscheduled:
+                p1_r = (
+                    finish_times.get(m.previous_match_p1_id, start_time)
+                    if m.previous_match_p1_id
+                    else start_time
+                )
+                p2_r = (
+                    finish_times.get(m.previous_match_p2_id, start_time)
+                    if m.previous_match_p2_id
+                    else start_time
+                )
+                ready_at = max(p1_r, p2_r)
+                if ready_at > current_time_slot:
+                    if next_wake is None or ready_at < next_wake:
+                        next_wake = ready_at
+            if next_wake:
+                court_timers[best_court] = next_wake
+            else:
+                break

backend/app/main.py

@@ -0,0 +1,30 @@
+# backend/app/main.py
+from contextlib import asynccontextmanager
+from fastapi import FastAPI
+from fastapi.middleware.cors import CORSMiddleware
+
+from .database import Base, engine
+from .routes import auth, tournaments, websocket
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    Base.metadata.create_all(bind=engine)
+    yield
+
+
+app = FastAPI(title="Tournament Bracket API", lifespan=lifespan)
+app.include_router(tournaments.router)
+app.include_router(auth.router)
+app.include_router(websocket.router)
+app.add_middleware(
+    CORSMiddleware,
+    allow_origins=["*"],
+    allow_methods=["*"],
+    allow_headers=["*"],
+)
+
+if __name__ == "__main__":
+    import uvicorn
+
+    uvicorn.run("app.main:app", host="0.0.0.0", port=8000, reload=True)

backend/app/models.py

@@ -0,0 +1,121 @@
+# backend/app/models.py
+from datetime import datetime
+from typing import Optional
+
+from sqlalchemy import JSON, DateTime
+from sqlalchemy import Enum as SqlEnum
+from sqlalchemy import ForeignKey, Integer, String
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from .constants import (
+    TournamentTypes,
+    MatchSourceType,
+    MatchStatus,
+    WinnerSide,
+    BracketType,
+)
+from .database import Base
+
+
+class Tournament(Base):
+    __tablename__ = "tournaments"
+
+    id: Mapped[str] = mapped_column(String(8), primary_key=True, index=True)
+    name: Mapped[str] = mapped_column(String, nullable=False)
+    code: Mapped[str] = mapped_column(String, nullable=True)
+    timestamp: Mapped[datetime] = mapped_column(DateTime, nullable=False)
+    duration: Mapped[int] = mapped_column(Integer, default=30)
+    type: Mapped[TournamentTypes] = mapped_column(SqlEnum(TournamentTypes))
+
+    teams: Mapped[list["Team"]] = relationship(
+        "Team", back_populates="tournament", cascade="all, delete-orphan"
+    )
+    courts: Mapped[list["Court"]] = relationship(
+        "Court", back_populates="tournament", cascade="all, delete-orphan"
+    )
+    matches: Mapped[list["Match"]] = relationship(
+        "Match", back_populates="tournament", cascade="all, delete-orphan"
+    )
+
+    # --- ADD THESE PROPERTIES ---
+    @property
+    def team_count(self) -> int:
+        return len(self.teams)
+
+    @property
+    def court_count(self) -> int:
+        return len(self.courts)
+
+
+class Team(Base):
+    __tablename__ = "teams"
+    id: Mapped[int] = mapped_column(Integer, primary_key=True)
+    name: Mapped[str] = mapped_column(String, nullable=False)
+    tournament_id: Mapped[str] = mapped_column(ForeignKey("tournaments.id"))
+
+    tournament: Mapped["Tournament"] = relationship(back_populates="teams")
+
+
+class Court(Base):
+    __tablename__ = "courts"
+    id: Mapped[int] = mapped_column(Integer, primary_key=True)
+    name: Mapped[str] = mapped_column(String, nullable=False)
+    tournament_id: Mapped[str] = mapped_column(ForeignKey("tournaments.id"))
+
+    tournament: Mapped["Tournament"] = relationship(back_populates="courts")
+
+
+class Match(Base):
+    __tablename__ = "matches"
+
+    id: Mapped[str] = mapped_column(String, primary_key=True)
+    tournament_id: Mapped[str] = mapped_column(
+        ForeignKey("tournaments.id"), primary_key=True
+    )
+
+    # --- Structural Info ---
+    bracket: Mapped[BracketType] = mapped_column(
+        SqlEnum(BracketType, native_enum=False)
+    )
+    round: Mapped[int] = mapped_column(Integer)
+    number: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
+
+    # --- Scheduling ---
+    timestamp: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    court_name: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+
+    # --- Player Info ---
+    p1_name: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+    p2_name: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+
+    winner: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+
+    status: Mapped[MatchStatus] = mapped_column(
+        SqlEnum(MatchStatus, native_enum=False), default=MatchStatus.PENDING
+    )
+    sets: Mapped[list[dict]] = mapped_column(JSON, default=list)
+
+    previous_match_p1_id: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+    previous_match_p2_id: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+
+    source_p1_type: Mapped[Optional[MatchSourceType]] = mapped_column(
+        SqlEnum(MatchSourceType, native_enum=False), nullable=True
+    )
+    source_p2_type: Mapped[Optional[MatchSourceType]] = mapped_column(
+        SqlEnum(MatchSourceType, native_enum=False), nullable=True
+    )
+
+    winner_next_match_id: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+    loser_next_match_id: Mapped[Optional[str]] = mapped_column(String, nullable=True)
+
+    tournament: Mapped["Tournament"] = relationship(back_populates="matches")
+
+    @property
+    def winner_side(self) -> WinnerSide:
+        if not self.winner:
+            return WinnerSide.NONE
+        if self.winner == self.p1_name:
+            return WinnerSide.P1
+        if self.winner == self.p2_name:
+            return WinnerSide.P2
+        return WinnerSide.NONE

backend/app/routes/__init__.py

@@ -0,0 +1 @@
+# backend/app/routes/__init__.py

backend/app/routes/auth.py

@@ -0,0 +1,48 @@
+# backend/app/routes/auth.py
+from datetime import timedelta
+from typing import Annotated
+
+from fastapi import APIRouter, Depends, HTTPException, status
+from fastapi.security import OAuth2PasswordRequestForm
+
+from ..schemas import Token
+from ..core.auth import create_access_token, get_current_user
+from ..core.config import (
+    ACCESS_TOKEN_EXPIRE_MINUTES,
+    ADMIN_HASH,
+    ADMIN_USER,
+    verify_password,
+)
+
+router = APIRouter(prefix="/auth", tags=["Auth"])
+
+
+@router.post("/token", response_model=Token)
+async def login_for_access_token(
+    form_data: Annotated[OAuth2PasswordRequestForm, Depends()],
+):
+    if form_data.username != ADMIN_USER:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    if not verify_password(form_data.password, ADMIN_HASH):
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Incorrect username or password",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
+
+    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
+    access_token = create_access_token(
+        data={"sub": form_data.username}, expires_delta=access_token_expires
+    )
+
+    return {"access_token": access_token, "token_type": "bearer"}
+
+
+@router.get("/check")
+async def check_auth(user: str = Depends(get_current_user)):
+    return {"is_admin": True, "user": user}

backend/app/routes/tournaments/__init__.py

@@ -0,0 +1,6 @@
+# backend/app/routes/tournaments/__init__.py
+from fastapi import APIRouter
+
+router = APIRouter(prefix="/tournaments", tags=["Tournaments"])
+
+from . import report, courts, matches, teams, tournaments

backend/app/routes/tournaments/courts.py

@@ -0,0 +1,61 @@
+# backend/app/routes/tournaments/courts.py
+
+from fastapi import Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from ... import crud, schemas
+from ...constants import SUCCESS
+from ...core.websocket_manager import send_ws_update
+from ...core.auth import get_current_user
+from ...database import get_db
+from . import router
+
+
+@router.get("/{id}/courts", response_model=list[schemas.CourtSchema])
+def get_courts(id: str, db: Session = Depends(get_db)):
+    return crud.get_courts(db, id)
+
+
+@router.post("/{id}/courts", response_model=schemas.CourtSchema)
+async def create_court(
+    id: str,
+    court: schemas.CourtCreate,
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    new_court = crud.create_court(db, id, court)
+    if not new_court:
+        raise HTTPException(404, "Tournament not found")
+
+    await send_ws_update(id)
+    return new_court
+
+
+@router.patch("/{id}/courts", response_model=schemas.TournamentDetail)
+async def update_courts(
+    id: str,
+    courts: list[str],
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    t = crud.update_tournament_courts(db, id, courts)
+    if not t:
+        raise HTTPException(404, "Not found")
+
+    await send_ws_update(id)
+    return t
+
+
+@router.delete("/{id}/courts/{court_id}")
+async def delete_court(
+    id: str,
+    court_id: int,
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    success = crud.delete_court(db, id, court_id)
+    if not success:
+        raise HTTPException(404, "Court or Tournament not found")
+
+    await send_ws_update(id)
+    return SUCCESS

backend/app/routes/tournaments/matches.py

@@ -0,0 +1,24 @@
+# backend/app/routes/tournaments/matches.py
+
+from fastapi import Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from ... import crud, schemas
+from ...database import get_db
+from . import router
+
+
+@router.get("/{id}/matches", response_model=list[schemas.MatchOut])
+def get_tournament_matches(id: str, db: Session = Depends(get_db)):
+    matches = crud.get_tournament_matches(db, id)
+    return matches
+
+
+@router.get("/{id}/matches/{match_id}", response_model=schemas.MatchOut)
+def get_match_details(id: str, match_id: str, db: Session = Depends(get_db)):
+    match = crud.get_match(db, id, match_id)
+
+    if not match:
+        raise HTTPException(404, "Match not found")
+
+    return match

backend/app/routes/tournaments/report.py

@@ -0,0 +1,145 @@
+# backend/app/routes/tournaments/report.py
+from typing import List, Optional
+
+from fastapi import Depends, HTTPException, Query
+from sqlalchemy.orm import Session
+from sqlalchemy.orm.attributes import flag_modified
+
+from ... import crud, logic, models, schemas
+from ...constants import SUCCESS, MatchStatus
+from ...core.auth import get_optional_user
+from ...core.websocket_manager import send_ws_update
+from ...database import get_db
+from . import router
+
+
+# --- Helper: Centralize Auth Logic ---
+def _check_auth(t: models.Tournament, user: Optional[str], code: Optional[str]):
+    is_admin = user is not None
+    code_matches = code is not None and str(code).strip() == str(t.code).strip()
+
+    if not is_admin and not code_matches:
+        raise HTTPException(403, "Invalid tournament code or admin privileges required")
+
+
+@router.post("/{id}/matches/{match_id}/score")
+async def report_score(
+    id: str,
+    match_id: str,
+    report: schemas.ScoreReport,
+    db: Session = Depends(get_db),
+    user: Optional[str] = Depends(get_optional_user),
+):
+    t = crud.get_tournament(db, id)
+    if not t:
+        raise HTTPException(404, "Tournament not found")
+
+    _check_auth(t, user, report.code)
+
+    match = crud.get_match(db, id, match_id)
+    if not match:
+        raise HTTPException(404, "Match not found")
+
+    if not report.sets:
+        raise HTTPException(400, "No sets submitted")
+
+    _apply_score(match, report.sets)
+
+    flag_modified(match, "sets")
+    logic.refresh_bracket(t)
+    logic.update_schedule(t)
+    db.commit()
+
+    await send_ws_update(id)
+    return SUCCESS
+
+
+@router.patch("/{id}/matches/{match_id}/score")
+async def edit_score(
+    id: str,
+    match_id: str,
+    report: schemas.ScoreReport,
+    db: Session = Depends(get_db),
+    user: Optional[str] = Depends(get_optional_user),
+):
+    """
+    Allows correcting a score without resetting the match status logic entirely,
+    or just re-applying the new sets.
+    """
+    t = crud.get_tournament(db, id)
+    if not t:
+        raise HTTPException(404, "Tournament not found")
+
+    _check_auth(t, user, report.code)
+
+    match = crud.get_match(db, id, match_id)
+    if not match:
+        raise HTTPException(404, "Match not found")
+
+    if report.sets:
+        _apply_score(match, report.sets)
+
+    flag_modified(match, "sets")
+    logic.refresh_bracket(t)
+    logic.update_schedule(t)
+    db.commit()
+
+    await send_ws_update(id)
+    return SUCCESS
+
+
+@router.delete("/{id}/matches/{match_id}/score")
+async def clear_score(
+    id: str,
+    match_id: str,
+    code: Optional[str] = Query(None),
+    db: Session = Depends(get_db),
+    user: Optional[str] = Depends(get_optional_user),
+):
+    t = crud.get_tournament(db, id)
+    if not t:
+        raise HTTPException(404, "Tournament not found")
+
+    _check_auth(t, user, code)
+
+    match = crud.get_match(db, id, match_id)
+    if not match:
+        raise HTTPException(404, "Match not found")
+
+    match.winner = None
+    match.status = MatchStatus.PENDING.value
+    match.sets = []
+
+    flag_modified(match, "sets")
+
+    logic.refresh_bracket(t)
+    logic.update_schedule(t)
+    db.commit()
+
+    await send_ws_update(id)
+    return SUCCESS
+
+
+def _apply_score(match: models.Match, sets: List[schemas.SetScore]):
+    """
+    Calculates winner based on sets and updates the match object.
+    Does NOT commit to DB.
+    """
+    p1_wins = sum(1 for s in sets if s.p1 > s.p2)
+    p2_wins = sum(1 for s in sets if s.p2 > s.p1)
+
+    if p1_wins > p2_wins:
+        match.winner = match.p1_name
+    elif p2_wins > p1_wins:
+        match.winner = match.p2_name
+    else:
+        p1_points = sum(s.p1 for s in sets)
+        p2_points = sum(s.p2 for s in sets)
+
+        if p1_points == p2_points:
+            raise HTTPException(400, "Absolute tie: Sets and Points are equal.")
+
+        match.winner = match.p1_name if p1_points > p2_points else match.p2_name
+
+    match.status = MatchStatus.FINISHED.value
+    match.sets = [s.model_dump() for s in sets]

backend/app/routes/tournaments/teams.py

@@ -0,0 +1,61 @@
+# backend/app/routes/tournaments/teams.py
+
+from fastapi import Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from ... import crud, schemas
+from ...constants import SUCCESS
+from ...core.websocket_manager import send_ws_update
+from ...core.auth import get_current_user
+from ...database import get_db
+from . import router
+
+
+@router.get("/{id}/teams", response_model=list[schemas.TeamSchema])
+def get_teams(id: str, db: Session = Depends(get_db)):
+    return crud.get_teams(db, id)
+
+
+@router.post("/{id}/teams", response_model=schemas.TeamSchema)
+async def create_team(
+    id: str,
+    team: schemas.TeamCreate,
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    new_team = crud.create_team(db, id, team)
+    if not new_team:
+        raise HTTPException(404, "Tournament not found")
+
+    await send_ws_update(id)
+    return new_team
+
+
+@router.patch("/{id}/teams", response_model=list[schemas.TeamSchema])
+async def update_teams(
+    id: str,
+    teams: list[str],
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    t = crud.update_tournament_teams(db, id, teams)
+    if not t:
+        raise HTTPException(404, "Not found")
+
+    await send_ws_update(id)
+    return t.teams
+
+
+@router.delete("/{id}/teams/{team_id}")
+async def delete_team(
+    id: str,
+    team_id: int,
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    success = crud.delete_team(db, id, team_id)
+    if not success:
+        raise HTTPException(404, "Team or Tournament not found")
+
+    await send_ws_update(id)
+    return SUCCESS

backend/app/routes/tournaments/tournaments.py

@@ -0,0 +1,62 @@
+# backend/app/routes/tournaments/tournaments.py
+from fastapi import Depends, HTTPException
+from sqlalchemy.orm import Session
+
+from ... import crud, schemas
+from ...constants import SUCCESS
+from ...core.websocket_manager import send_ws_update
+from ...database import get_db
+from ...core.auth import get_current_user
+from . import router
+
+
+@router.post("", response_model=schemas.TournamentOut)
+async def create_tournament(
+    data: schemas.TournamentCreate,
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    new_t = crud.create_tournament(db, data)
+    await send_ws_update(new_t.id)
+    return new_t
+
+
+@router.get("", response_model=list[schemas.TournamentOut])
+def list_tournaments(db: Session = Depends(get_db)):
+    return crud.get_tournaments(db)
+
+
+@router.get("/{id}", response_model=schemas.TournamentDetail)
+def get_tournament(id: str, db: Session = Depends(get_db)):
+    t = crud.get_tournament(db, id)
+    if not t:
+        raise HTTPException(404, "Tournament not found")
+    return t
+
+
+@router.patch("/{id}", response_model=schemas.TournamentUpdateResponse)
+async def update_settings(
+    id: str,
+    data: schemas.TournamentUpdate,
+    db: Session = Depends(get_db),
+    user: str = Depends(get_current_user),
+):
+    t = crud.update_tournament_details(db, id, data)
+    if not t:
+        raise HTTPException(404, "Not found")
+
+    await send_ws_update(id)
+    return t
+
+
+@router.delete("/{id}")
+async def delete_tournament(
+    id: str, db: Session = Depends(get_db), user: str = Depends(get_current_user)
+):
+    success = crud.delete_tournament(db, id)
+    if not success:
+        raise HTTPException(404, "Tournament not found")
+
+    await send_ws_update(id)
+
+    return SUCCESS

backend/app/routes/websocket.py

@@ -0,0 +1,16 @@
+# backend/app/routes/websocket.py
+from fastapi import APIRouter, WebSocket, WebSocketDisconnect
+
+from ..core.websocket_manager import manager
+
+router = APIRouter(prefix="/ws", tags=["Websocket"])
+
+
+@router.websocket("/")
+async def websocket_endpoint(websocket: WebSocket):
+    await manager.connect(websocket)
+    try:
+        while True:
+            await websocket.receive_text()
+    except WebSocketDisconnect:
+        manager.disconnect(websocket)

backend/app/schemas.py

@@ -0,0 +1,139 @@
+# backend/app/schemas.py
+from datetime import datetime
+
+from pydantic import BaseModel, ConfigDict, Field
+
+from .constants import (
+    BracketType,
+    MatchSourceType,
+    MatchStatus,
+    TournamentTypes,
+    WinnerSide,
+)
+
+
+class TeamSchema(BaseModel):
+    id: int
+    name: str
+    model_config = ConfigDict(from_attributes=True)
+
+
+class CourtSchema(BaseModel):
+    id: int
+    name: str
+    model_config = ConfigDict(from_attributes=True)
+
+
+class TeamCreate(BaseModel):
+    name: str
+
+
+class CourtCreate(BaseModel):
+    name: str
+
+
+class SetScore(BaseModel):
+    p1: int
+    p2: int
+
+
+class ScoreReport(BaseModel):
+    id: str
+    code: str | None = None
+    sets: list[SetScore]
+
+
+class MatchOut(BaseModel):
+    id: str
+    number: int | None = None
+    timestamp: datetime | None = None
+
+    court: str | None = Field(
+        default=None, validation_alias="court_name", serialization_alias="court"
+    )
+
+    bracket: BracketType
+    round: int
+
+    p1: str | None = Field(
+        default=None, validation_alias="p1_name", serialization_alias="p1"
+    )
+    p2: str | None = Field(
+        default=None, validation_alias="p2_name", serialization_alias="p2"
+    )
+
+    status: MatchStatus
+    sets: list[SetScore] = []
+
+    previous_match_p1_id: str | None = Field(
+        default=None, serialization_alias="source_p1"
+    )
+    previous_match_p2_id: str | None = Field(
+        default=None, serialization_alias="source_p2"
+    )
+
+    source_p1_type: MatchSourceType | None = None
+    source_p2_type: MatchSourceType | None = None
+
+    winner_next_match_id: str | None = Field(
+        default=None, serialization_alias="next_win"
+    )
+    loser_next_match_id: str | None = Field(
+        default=None, serialization_alias="next_loss"
+    )
+
+    winner_side: WinnerSide = WinnerSide.NONE
+
+    model_config = ConfigDict(from_attributes=True, populate_by_name=True)
+
+
+class TournamentCreate(BaseModel):
+    name: str
+    code: str
+    type: TournamentTypes
+    timestamp: datetime
+    duration: int
+    teams: list[str]
+    courts: list[str]
+
+
+class TournamentOut(BaseModel):
+    id: str
+    name: str
+    timestamp: datetime
+    type: TournamentTypes
+    team_count: int
+    court_count: int
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+class TournamentUpdate(BaseModel):
+
+    name: str | None = None
+    code: str | None = None
+    timestamp: datetime | None = None
+    duration: int | None = None
+    type: TournamentTypes | None = None
+
+
+class TournamentDetail(BaseModel):
+    id: str
+    name: str
+    code: str
+    timestamp: datetime
+    type: TournamentTypes
+    teams: list[TeamSchema]
+    courts: list[CourtSchema]
+    matches: list[MatchOut]
+
+    model_config = ConfigDict(from_attributes=True)
+
+
+class TournamentUpdateResponse(TournamentDetail):
+    code: str
+
+
+class Token(BaseModel):
+    access_token: str
+    token_type: str