<?php

namespace App\Http\Controllers;

use App\Models\VideoDanmakus;
use App\Models\Videos;
use App\Util\DanmakuUtil;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Support\Facades\DB;

class DanmakuConstructController extends BaseController
{
    public function page(Request $request)
    {
        $view = view("danmaku.construct.batch_import");
        if ($request->has("video_bvid")) {
            $bvid = $request->get("video_bvid");
            $video = Videos::query()->where("bvid", "=", $bvid)->first();
            if ($video == null) {
                $view->withErrors([
                    "video_bvid" => "系统无此对应视频",
                ]);
            } else {
                $request->session()->flashInput([
                    "video_bvid" => $bvid
                ]);
            }
        }
        return $view;
    }

    public function do_import(Request $request)
    {
        $request->validate([
            'video_bvid' => ['required'],
            'platform_id' => ['required', 'int'],
            'file.*' => ['required', 'file']
        ]);
        $payload = $request->only(["video_bvid", "platform_id"]);
        $files = $request->file("file");
        if (!is_array($files)) {
            $files = [$files];
        }
        $video = Videos::query()->where("bvid", "=", $payload["video_bvid"])->first();
        if ($video == null) {
            return back()->withInput()->withErrors([
                "video_bvid" => "系统无此对应视频",
            ]);
        }
        foreach ($files as $file) {
            $danmakus = DanmakuUtil::parse_danmaku($file->getRealPath());
            DB::beginTransaction();
            try {
                foreach ($danmakus as &$danmaku) {
                    $danmaku['video_bvid'] = $video->bvid;
                    $danmaku['platform_id'] = $payload["platform_id"];
                    unset($danmaku);
                }
                VideoDanmakus::insert($danmakus);
                DB::commit();
            } catch (\Exception $e) {
                DB::rollBack();
                return back()->withInput()->withErrors([
                    "file" => "文件导入异常：" . $e->getMessage(),
                ]);
            }
        }
        return redirect("/danmakus/" . $payload["video_bvid"]);
    }
}