<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\Clip;

class ClipController extends Controller
{
    /**
     * Display a listing of videos.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function getClips(Request $request)
    {
        // Start query with a join on videos to enable ordering by external_date
        $query = Clip::query()
            ->join('videos', 'clips.video_id', '=', 'videos.id')
            ->with(['video', 'video.transcriptions', 'video.channel'])
            ->select('clips.*') // Ensures only Clip attributes are returned
            ->orderBy('videos.external_date', 'desc');

        // Filter by channel_ids
        if ($request->has('channel_ids')) {
            $query->whereHas('video', function ($q) use ($request) {
                $q->whereIn('channel_id', $request->input('channel_ids'));
            });
        }

        // Filter by specific video_id
        if ($request->has('video_id')) {
            $query->whereHas('video', function ($q) use ($request) {
                $q->where('id', $request->input('video_id'));
            });
        }

        // Filter by languages (via video.channel.language)
        if ($request->has('languages')) {
            $languages = $request->input('languages');
            $query->whereHas('video.channel', function ($q) use ($languages) {
                $q->whereIn('language', $languages);
            });
        }

        // Filter by external_date range
        if ($request->has('start_date') && $request->has('end_date')) {
            $query->whereBetween('videos.external_date', [
                $request->input('start_date'),
                $request->input('end_date'),
            ]);
        }

        // Retrieve the results (consider using paginate() for large sets)
        $clips = $query->get();

        return response()->json($clips);
    }
}