"""Administrative/provider endpoints (section 17): trigger ingestion and
check job status. Separately protected by an admin API key — never mounted
on the public read path.
"""

from __future__ import annotations

import uuid

from arq import ArqRedis
from fastapi import APIRouter, Depends, HTTPException, status
from pydantic import BaseModel
from sqlalchemy.ext.asyncio import AsyncSession

from app.api.deps import not_found
from app.core.database import get_db
from app.core.queue import get_queue
from app.core.security import require_admin_api_key
from app.repositories.provider_repository import get_ingestion_job
from app.services.ingestion.runner import get_or_create_ingestion_job

router = APIRouter(
    prefix="/admin",
    tags=["admin"],
    dependencies=[Depends(require_admin_api_key)],
)


class IngestMovieRequest(BaseModel):
    tmdb_id: str


class IngestPersonRequest(BaseModel):
    tmdb_id: str


class IngestionEnqueuedOut(BaseModel):
    job_id: str
    arq_job_id: str
    status: str = "enqueued"


class IngestionJobOut(BaseModel):
    id: str
    job_type: str
    entity_type: str | None
    external_id: str | None
    status: str
    attempts: int
    error: str | None
    result_aurora_id: str | None


@router.post("/ingest/movie", response_model=IngestionEnqueuedOut)
async def enqueue_movie_ingestion(
    body: IngestMovieRequest, queue: ArqRedis = Depends(get_queue)
) -> IngestionEnqueuedOut:
    # Created synchronously (and idempotently — same tmdb_id reuses the same
    # row) so the response's job_id is immediately valid against
    # GET /ingest/jobs/{job_id}. arq's own job id is a separate, unrelated
    # identifier used only for queue bookkeeping.
    job_id = await get_or_create_ingestion_job("movie_sync", "movie", body.tmdb_id)
    arq_job = await queue.enqueue_job("ingest_movie_task", str(job_id), body.tmdb_id)
    if arq_job is None:
        raise HTTPException(
            status.HTTP_503_SERVICE_UNAVAILABLE, "Could not enqueue ingestion job (queue busy)."
        )
    return IngestionEnqueuedOut(job_id=str(job_id), arq_job_id=arq_job.job_id)


@router.post("/ingest/person", response_model=IngestionEnqueuedOut)
async def enqueue_person_ingestion(
    body: IngestPersonRequest, queue: ArqRedis = Depends(get_queue)
) -> IngestionEnqueuedOut:
    job_id = await get_or_create_ingestion_job("person_sync", "person", body.tmdb_id)
    arq_job = await queue.enqueue_job("ingest_person_task", str(job_id), body.tmdb_id)
    if arq_job is None:
        raise HTTPException(
            status.HTTP_503_SERVICE_UNAVAILABLE, "Could not enqueue ingestion job (queue busy)."
        )
    return IngestionEnqueuedOut(job_id=str(job_id), arq_job_id=arq_job.job_id)


@router.get("/ingest/jobs/{job_id}", response_model=IngestionJobOut)
async def get_ingestion_job_status(
    job_id: uuid.UUID, session: AsyncSession = Depends(get_db)
) -> IngestionJobOut:
    job = await get_ingestion_job(session, job_id)
    if job is None:
        raise not_found("ingestion_job", str(job_id))
    return IngestionJobOut(
        id=str(job.id),
        job_type=job.job_type,
        entity_type=job.entity_type,
        external_id=job.external_id,
        status=job.status.value,
        attempts=job.attempts,
        error=job.error,
        result_aurora_id=str(job.result_aurora_id) if job.result_aurora_id else None,
    )