<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\Agent;
use App\Models\Channel;
use App\Models\User;
use App\Models\UserChannel;
use EasyWeChat\Factory;
use EasyWeChat\Kernel\Exceptions\InvalidConfigException;
use Illuminate\Support\Facades\Cache;

/**
 * 小程序登录
 * Class Login
 * @package App\Http\Controllers\Api
 */
class LoginController extends Controller
{
	public function login()
	{
		$appid = request()->header('appid');
		if (!$appid) {
			return $this->error('appid参数缺失');
		}
		$agent = Agent::query()->firstWhere('appid', $appid); //代理商数据
		if (!$agent) {
			return $this->error('找不到该appid相关记录');
		}

		$code = request()->input('code');
		if (!$code) {
			return $this->error('code参数缺失');
		}

		$config = config('wechat.mini_program.default');
		$config = array_merge($config, [
			'app_id' => $agent['appid'],
			'secret' => $agent['appsecret'],
		]);
		$app = Factory::miniProgram($config);

		try {
			$res = $app->auth->session($code);
			if (!empty($res['errcode']) || empty($res['openid']) && empty($res['unionid'])) {
				$msg = $res['errmsg'] ?? '登录失败';
				return $this->error($msg);
			}
			if (empty($res['session_key'])) {
				return $this->error('获取session_key失败');
			}
		} catch (InvalidConfigException $e) {
			return $this->error($e->getMessage());
		}

		// TODO 登录部分待优化
		$userModel = User::query()->firstOrCreate([
			'openid' => $res['openid'] ?? '',
			'agent_id' => $agent->id,
		], [
			'unionid' => $res['unionid'] ?? '',
		]);

		//保存session_key
		Cache::put('session_key_' . $userModel->id, $res['session_key']);

		//如果是新增，插入初始数据
		if ($userModel->wasRecentlyCreated) {
			$channel_ids = UserChannel::where('user_id', $userModel->id)->first();
			//如果不存在则存入初始数据
			if (!$channel_ids) {
				$channel_ids = Channel::where([
					['agent_id', '=', $this->agent_id],
					['pid', '<>', 0],
				])
					->orderBy('id')
					->limit(8)
					->pluck('id')
					->toArray();
				//存入user_channel
				UserChannel::where('user_id', $userModel->id)
					->insert([
						'user_id' => $userModel->id,
						'channels' => json_encode($channel_ids)
					]);
			}

		}

		$token_key = md5($userModel->id . env('APP_KEY'));
		Cache::put($token_key, $userModel->id);
		// 测试代码结束
		$userModel->token = $token_key;
		return $this->success($userModel);
	}
}