"""Document upload and management endpoints."""

import asyncio

from fastapi import APIRouter, File, HTTPException, UploadFile

router = APIRouter(prefix="/api/documents")


def get_ingestion_service():
    from core.bootstrap import get_ingestion_service as _get
    return _get()


def get_db():
    from core.bootstrap import get_db as _get
    return _get()


@router.post("/upload")
async def upload_document(file: UploadFile = File(...)):
    ingestion_service = get_ingestion_service()
    content = await file.read()
    filename = file.filename or "unknown"
    ext = filename.lower().rsplit(".", 1)[-1]

    if ext == "pdf":
        result = await asyncio.to_thread(ingestion_service.ingest_pdf, content, filename)
    elif ext in ("png", "jpg", "jpeg", "tiff", "bmp", "webp"):
        result = await asyncio.to_thread(ingestion_service.ingest_image, content, filename)
    else:
        raise HTTPException(
            status_code=400,
            detail="Unsupported file type. Use PDF or image files.",
        )

    return result


@router.get("/list")
async def list_documents():
    db = get_db()
    return {"documents": db.list_documents()}


@router.delete("/{doc_id}")
async def delete_document(doc_id: str):
    db = get_db()
    db.delete_document(doc_id)
    return {"status": "deleted", "document_id": doc_id}