"""Media router — index status, build, and query."""

from __future__ import annotations

from typing import Any

from fastapi import APIRouter, Depends, Query

from dependencies import get_jellyfin_client, get_user_id
from clients.jellyfin import JellyfinClient
from services.media_index import MediaIndex, build_media_index

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


def get_media_index() -> MediaIndex:
    return MediaIndex()


@router.get("/status")
def get_index_status(index: MediaIndex = Depends(get_media_index)) -> dict[str, Any]:
    """Return media index status (exists, count, last updated, build duration)."""
    status = index.status()
    return {
        "exists": status.exists,
        "item_count": status.item_count,
        "updated_at": status.updated_at,
        "updated_at_label": status.updated_at_label,
        "build_duration_seconds": status.build_duration_seconds,
    }


@router.post("/build")
def post_build_index(
    client: JellyfinClient = Depends(get_jellyfin_client),
    user_id: str = Depends(get_user_id),
    index: MediaIndex = Depends(get_media_index),
) -> dict[str, Any]:
    """Rebuild the media index from Jellyfin."""
    libraries = client.libraries(user_id)
    count = build_media_index(client, user_id, libraries, index)
    return {"indexed_items": count}


@router.get("/query")
def query_media(
    libraries: str = Query("", description="Comma-separated library IDs"),
    types: str = Query("Movie,Episode", description="Comma-separated media types"),
    search: str = Query("", description="Search term"),
    hdr_filter: str = Query("All", description="All, HDR only, SDR/unknown only"),
    sort_key: str = Query("title", description="Sort field"),
    sort_order: str = Query("Ascending", description="Ascending or Descending"),
    limit: int = Query(100, ge=1, le=1000),
    offset: int = Query(0, ge=0),
    client: JellyfinClient = Depends(get_jellyfin_client),
    user_id: str = Depends(get_user_id),
    index: MediaIndex = Depends(get_media_index),
) -> dict[str, Any]:
    """Query the media index with filters, sorting, and pagination."""
    # If no library IDs provided, use all libraries
    library_ids = [lid.strip() for lid in libraries.split(",") if lid.strip()] if libraries else None
    if not library_ids:
        all_libs = client.libraries(user_id)
        library_ids = [lib["Id"] for lib in all_libs]

    media_types = [t.strip() for t in types.split(",") if t.strip()]

    rows, total = index.query(
        library_ids=library_ids,
        media_types=media_types,
        search=search,
        hdr_filter=hdr_filter,
        sort_key=sort_key,
        sort_order=sort_order,
        limit=limit,
        offset=offset,
    )

    return {
        "items": rows,
        "total": total,
        "limit": limit,
        "offset": offset,
    }