<?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
        $os = AppOs::tryFrom((string) $request->header('app-cli-os'));
        // 客户端版本
        $version = (int) $request->header('app-cli-version', 0);

        $android = AppVersion::onlyReleased()
            ->where('os', AppOs::Android)
            ->latest('version')
            ->first();

        $ios = AppVersion::onlyReleased()
            ->where('os', AppOs::Ios)
            ->latest('version')
            ->first();

        switch ($os) {
            case AppOs::Android:
                if (! $android->isApkUpdate()) {
                    $apkUpdateVersion = AppVersion::onlyReleased()
                        ->where('os', AppOs::Android)
                        ->where('version', '>', $version)
                        ->where('update_strategy', AppUpdateStrategy::Apk)
                        ->latest('version')
                        ->first();

                    if ($apkUpdateVersion) {
                        $android = $apkUpdateVersion;
                    }
                }
                break;

            case AppOs::Ios:
                if (! $ios->isApkUpdate()) {
                    $apkUpdateVersion = AppVersion::onlyReleased()
                        ->where('os', AppOs::Ios)
                        ->where('version', '>', $version)
                        ->where('update_strategy', AppUpdateStrategy::Apk)
                        ->latest('version')
                        ->first();

                    if ($apkUpdateVersion) {
                        $ios = $apkUpdateVersion;
                    }
                }
                break;
        }

        return [
            'android' => $android ? AppVersionResource::make($android) : null,
            'ios' => $ios ? AppVersionResource::make($ios) : null,
        ];
    }
}