from datetime import UTC, datetime

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

from app.db.session import get_db
from app.deps import get_tenant_id
from app.sync import schemas, service

router = APIRouter()


@router.get("/full")
async def sync_full(
    tenant_id: str = Depends(get_tenant_id),
    db: AsyncSession = Depends(get_db),
):
    tables = await service.get_full(db, tenant_id)
    return {"tables": tables, "synced_at": datetime.now(UTC).isoformat()}


@router.get("/changes")
async def sync_changes(
    since: str = Query(...),
    tenant_id: str = Depends(get_tenant_id),
    db: AsyncSession = Depends(get_db),
):
    tables = await service.get_changes(db, tenant_id, since)
    return {"tables": tables, "synced_at": datetime.now(UTC).isoformat()}


@router.post("/push", response_model=schemas.SyncPushResponse)
async def sync_push(
    data: schemas.SyncPushRequest,
    tenant_id: str = Depends(get_tenant_id),
    db: AsyncSession = Depends(get_db),
):
    result = await service.apply_push(
        db, tenant_id, [op.model_dump() for op in data.operations]
    )
    return result