from __future__ import annotations

import importlib.util
import shutil
import time

from fastapi import APIRouter, Request

from app.core.response import SuccessResponse

router = APIRouter(tags=["health"])


async def _health(request: Request) -> SuccessResponse:
    started = time.monotonic()
    settings = request.app.state.container.settings
    dependencies = {
        "ffmpeg": shutil.which(settings.ffmpeg_binary) is not None,
        "ffprobe": shutil.which(settings.ffprobe_binary) is not None,
        "yt_dlp": importlib.util.find_spec("yt_dlp") is not None,
        "faster_whisper": importlib.util.find_spec("faster_whisper") is not None,
    }
    return SuccessResponse(
        request_id=request.state.request_id,
        processing_time=round(time.monotonic() - started, 4),
        metadata={
            "status": "healthy",
            "version": settings.app_version,
            "dependencies": dependencies,
        },
    )


router.add_api_route("/health", _health, methods=["GET"], response_model=SuccessResponse)
router.add_api_route(
    "/v1/health", _health, methods=["GET"], response_model=SuccessResponse, include_in_schema=False
)