import uuid
from datetime import datetime

from fastapi import APIRouter, Depends, Query, status
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession

from api.database import get_session
from api.models.progress_event import ProgressEvent
from api.schemas.progress_event import ProgressEventCreate, ProgressEventRead

router = APIRouter(prefix="/progress", tags=["progress"])


@router.get("/", response_model=list[ProgressEventRead])
async def list_progress(
    topic_id: uuid.UUID | None = None,
    workstream_id: uuid.UUID | None = None,
    task_id: uuid.UUID | None = None,
    event_type: str | None = None,
    since: datetime | None = None,
    limit: int = Query(100, le=1000),
    offset: int = Query(0, ge=0),
    session: AsyncSession = Depends(get_session),
) -> list[ProgressEvent]:
    q = select(ProgressEvent)
    if topic_id:
        q = q.where(ProgressEvent.topic_id == topic_id)
    if workstream_id:
        q = q.where(ProgressEvent.workstream_id == workstream_id)
    if task_id:
        q = q.where(ProgressEvent.task_id == task_id)
    if event_type:
        q = q.where(ProgressEvent.event_type == event_type)
    if since:
        q = q.where(ProgressEvent.created_at >= since)
    q = q.order_by(ProgressEvent.created_at.desc()).offset(offset).limit(limit)
    result = await session.execute(q)
    return list(result.scalars().all())


@router.post("/", response_model=ProgressEventRead, status_code=status.HTTP_201_CREATED)
async def append_progress(
    body: ProgressEventCreate,
    session: AsyncSession = Depends(get_session),
) -> ProgressEvent:
    event = ProgressEvent(**body.model_dump())
    session.add(event)
    await session.commit()
    await session.refresh(event)
    return event