"""
routers/index.py — /index and /reindex endpoints.
"""

from __future__ import annotations

import uuid
from fastapi import APIRouter, BackgroundTasks, Depends

from core.database import get_pool
from core.settings import Settings
from models.requests import IndexRequest, ReindexRequest
from models.responses import JobResponse

router = APIRouter(prefix='/index', tags=['indexing'])


def _get_settings() -> Settings:
    from main import app_settings
    return app_settings


async def _enqueue_job(agent_type: str, payload: dict, pool) -> str:
    job_id = str(uuid.uuid4())
    async with pool.acquire() as conn:
        await conn.execute(
            """
            INSERT INTO agent_jobs (id, agent_type, payload)
            VALUES ($1::uuid, $2, $3::jsonb)
            """,
            job_id,
            agent_type,
            __import__('json').dumps(payload),
        )
    return job_id


@router.post('', response_model=JobResponse)
async def index_file(req: IndexRequest, settings: Settings = Depends(_get_settings)):
    pool = await get_pool()
    job_id = await _enqueue_job('ingestion', {'path': req.path, 'force': True}, pool)
    return JobResponse(job_id=job_id, status='pending', message=f'Indexing {req.path}')


@router.post('/reindex', response_model=JobResponse)
async def reindex_vault(req: ReindexRequest, settings: Settings = Depends(_get_settings)):
    pool = await get_pool()
    job_id = await _enqueue_job('ingestion', {'reindex_all': True, 'force': req.force}, pool)
    return JobResponse(job_id=job_id, status='pending', message='Full vault reindex queued')