<?php

namespace App\Http\Controllers;

use App\Models\Video;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

/**
 * Creator studio — the content management surface YouTube calls "YouTube
 * Studio". A skeleton for now: a filterable table of the signed-in user's
 * videos plus a bulk visibility change endpoint. Analytics, stepped upload
 * and schedule are future work.
 */
class StudioController extends Controller
{
    public function __construct()
    {
        $this->middleware('auth');
    }

    /**
     * The studio dashboard — defaults to the content tab.
     */
    public function index(Request $request)
    {
        $user   = Auth::user();
        $filter = $request->get('filter', 'all');

        $query = Video::where('user_id', $user->id)->latest();

        switch ($filter) {
            case 'public':    $query->where('visibility', 'public'); break;
            case 'unlisted':  $query->where('visibility', 'unlisted'); break;
            case 'private':   $query->where('visibility', 'private'); break;
            case 'shorts':    $query->where('is_shorts', true); break;
            case 'draft':     $query->whereIn('status', ['pending', 'processing', 'failed']); break;
        }

        $videos = $query->paginate(24)->withQueryString();

        // Headline numbers for the top bar.
        $totals = [
            'total'       => Video::where('user_id', $user->id)->count(),
            'public'      => Video::where('user_id', $user->id)->where('visibility', 'public')->count(),
            'unlisted'    => Video::where('user_id', $user->id)->where('visibility', 'unlisted')->count(),
            'private'     => Video::where('user_id', $user->id)->where('visibility', 'private')->count(),
            'processing'  => Video::where('user_id', $user->id)->whereIn('status', ['pending', 'processing'])->count(),
            'failed'      => Video::where('user_id', $user->id)->where('status', 'failed')->count(),
            'total_views' => \DB::table('video_views')
                ->whereIn('video_id', Video::where('user_id', $user->id)->pluck('id'))
                ->count(),
        ];

        return view('studio.index', [
            'videos' => $videos,
            'filter' => $filter,
            'totals' => $totals,
        ]);
    }

    /**
     * Bulk visibility change. POSTs { video_ids: [...], visibility: '...' }.
     * Guards against setting visibility on videos the user doesn't own, so a
     * crafted request can't flip anyone else's content.
     */
    public function bulkVisibility(Request $request)
    {
        $request->validate([
            'video_ids'   => ['required', 'array', 'min:1'],
            'video_ids.*' => ['integer'],
            'visibility'  => ['required', 'in:public,unlisted,private'],
        ]);

        $updated = Video::whereIn('id', $request->video_ids)
            ->where('user_id', Auth::id())
            ->update(['visibility' => $request->visibility]);

        return response()->json(['updated' => $updated]);
    }

    /**
     * Bulk delete. Same owner-only guard as above.
     */
    public function bulkDelete(Request $request)
    {
        $request->validate([
            'video_ids'   => ['required', 'array', 'min:1'],
            'video_ids.*' => ['integer'],
        ]);

        $deleted = Video::whereIn('id', $request->video_ids)
            ->where('user_id', Auth::id())
            ->delete();

        return response()->json(['deleted' => $deleted]);
    }
}