<?php

namespace App\Http\Controllers\Api;

use App\Enums\AppOs;
use App\Enums\AppUpdateStrategy;
use App\Http\Resources\AppVersionResource;
use App\Models\AppVersion;
use Illuminate\Http\Request;

class AppVersionController extends Controller
{
    public function latest(Request $request): array
    {
        // 客户端系统
        $cliOs = AppOs::tryFrom((string) $request->header('app-cli-os'));
        // 客户端版本
        $cliVersion = (int) $request->header('app-cli-version', 0);

        $data = ['android' => null, 'ios' => null];

        foreach ([
            AppOs::Android,
            AppOs::Ios,
        ] as $os) {
            /** @var \App\Models\AppVersion|null */
            $appVersion = AppVersion::onlyReleased()
                ->where('os', $os)
                ->latest('version')
                ->first();

            if (is_null($appVersion)) {
                continue;
            }

            $json = AppVersionResource::make($appVersion)->resolve($request);

            // 如果客户端版本和最新的版本之前有全量包更新的版本，则需全量包更新
            if (! $appVersion->isApkUpdate() && $cliOs === $os && $appVersion->version > $cliVersion + 1) {
                $isApkUpdate = AppVersion::onlyReleased()
                    ->where('os', $cliOs)
                    ->where('version', '>', $cliVersion)
                    ->where('update_strategy', AppUpdateStrategy::Apk)
                    ->exists();

                if ($isApkUpdate) {
                    $json['update_strategy'] = AppUpdateStrategy::Apk;
                    if ((string) $appVersion->apk_url === '') {
                        $json['apk_url'] = AppVersion::getLatestApkUrl($cliOs, $cliVersion);
                    }
                }
            }

            // 如果客户端版本和最新的版本之间有强制更新的版本，则需强制更新
            if (! $appVersion->is_force && $cliOs === $os && $appVersion->version > $cliVersion + 1) {
                $json['is_force'] = AppVersion::onlyReleased()
                    ->where('os', $cliOs)
                    ->where('version', '>', $cliVersion)
                    ->where('is_force', true)
                    ->exists();
            }

            $data[$os->value] = $json;
        }

        return $data;
    }
}