initial

backend/app/schemas/marathon.py

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+from datetime import datetime
+from pydantic import BaseModel, Field
+
+from app.schemas.user import UserPublic
+
+
+class MarathonBase(BaseModel):
+    title: str = Field(..., min_length=1, max_length=100)
+    description: str | None = None
+
+
+class MarathonCreate(MarathonBase):
+    start_date: datetime
+    duration_days: int = Field(default=30, ge=1, le=365)
+
+
+class MarathonUpdate(BaseModel):
+    title: str | None = Field(None, min_length=1, max_length=100)
+    description: str | None = None
+    start_date: datetime | None = None
+
+
+class ParticipantInfo(BaseModel):
+    id: int
+    total_points: int
+    current_streak: int
+    drop_count: int
+    joined_at: datetime
+
+    class Config:
+        from_attributes = True
+
+
+class ParticipantWithUser(ParticipantInfo):
+    user: UserPublic
+
+
+class MarathonResponse(MarathonBase):
+    id: int
+    organizer: UserPublic
+    status: str
+    invite_code: str
+    start_date: datetime | None
+    end_date: datetime | None
+    participants_count: int
+    games_count: int
+    created_at: datetime
+    my_participation: ParticipantInfo | None = None
+
+    class Config:
+        from_attributes = True
+
+
+class MarathonListItem(BaseModel):
+    id: int
+    title: str
+    status: str
+    participants_count: int
+    start_date: datetime | None
+    end_date: datetime | None
+
+    class Config:
+        from_attributes = True
+
+
+class JoinMarathon(BaseModel):
+    invite_code: str
+
+
+class LeaderboardEntry(BaseModel):
+    rank: int
+    user: UserPublic
+    total_points: int
+    current_streak: int
+    completed_count: int
+    dropped_count: int