<?php
// +----------------------------------------------------------------------
// | likeadmin快速开发前后端分离管理后台（PHP版）
// +----------------------------------------------------------------------
// | 欢迎阅读学习系统程序代码，建议反馈是我们前进的动力
// | 开源版本可自由商用，可去除界面版权logo
// | gitee下载：https://gitee.com/likeshop_gitee/likeadmin
// | github下载：https://github.com/likeshop-github/likeadmin
// | 访问官网：https://www.likeadmin.cn
// | likeadmin团队 版权所有 拥有最终解释权
// +----------------------------------------------------------------------
// | author: likeadminTeam
// +----------------------------------------------------------------------


namespace app\adminapi\controller;


use app\adminapi\controller\BaseAdminController;
use app\adminapi\lists\WxcodeLists;
use app\adminapi\logic\WxcodeLogic;
use app\adminapi\validate\WxcodeValidate;
use app\common\service\wechat\WeChatConfigService;
use EasyWeChat\MiniApp\Application;
use think\facade\Log;

/**
 * Wxcode控制器
 * Class WxcodeController
 * @package app\adminapi\controller
 */
class WxcodeController extends BaseAdminController
{


    /**
     * @notes 获取列表
     * @return \think\response\Json
     * @author likeadmin
     * @date 2026/03/06 13:28
     */
    public function lists()
    {
        return $this->dataLists(new WxcodeLists());
    }


    /**
     * @notes 添加
     * @return \think\response\Json
     * @author likeadmin
     * @date 2026/03/06 13:28
     */
    public function add()
    {
        $params = (new WxcodeValidate())->post()->goCheck('add');
        $return = $this->getWxacode($params);
//        var_dump($return);
        $result = WxcodeLogic::add($params,$return);
        if (true === $result) {
            return $this->success('添加成功', [], 1, 1);
        }
        return $this->fail(WxcodeLogic::getError());
    }


    /**
     * @notes 编辑
     * @return \think\response\Json
     * @author likeadmin
     * @date 2026/03/06 13:28
     */
    public function edit()
    {
        $params = (new WxcodeValidate())->post()->goCheck('edit');
        $result = WxcodeLogic::edit($params);
        if (true === $result) {
            return $this->success('编辑成功', [], 1, 1);
        }
        return $this->fail(WxcodeLogic::getError());
    }


    /**
     * @notes 删除
     * @return \think\response\Json
     * @author likeadmin
     * @date 2026/03/06 13:28
     */
    public function delete()
    {
        $params = (new WxcodeValidate())->post()->goCheck('delete');
        WxcodeLogic::delete($params);
        return $this->success('删除成功', [], 1, 1);
    }


    /**
     * @notes 获取详情
     * @return \think\response\Json
     * @author likeadmin
     * @date 2026/03/06 13:28
     */
    public function detail()
    {
        $params = (new WxcodeValidate())->goCheck('detail');
        $result = WxcodeLogic::detail($params);
        return $this->data($result);
    }
    public function getWxacode($params)
    {
        try {
            // 1. 获取参数
            $scene = 'default';
            $url = 'pages/index/index';
            $width = 430;
            // 'env_version' => 'trial',
//                'env_version' => 'develop'
            $envVersion = 'develop';

            // 2. 参数验证
            if (strlen($scene) > 32) {
                return $this->fail('场景值不能超过32个字符');
            }

            // 3. 获取微信配置
            $config = WeChatConfigService::getMnpConfig();

            if (empty($config['app_id']) || empty($config['secret'])) {
                return $this->fail('微信小程序配置不完整');
            }

            // 4. 创建微信小程序应用实例
            $app = new Application($config);

            // 5. 使用新的方式调用：通过 createClient() 调用API
            $response = $app->createClient()->postJson('/wxa/getwxacodeunlimit', [
                'scene' => 'registerSource='.$params['type'] , // 0普通 1电梯 2充电宝
                'page' => $url,
                'width' => $width,
                'auto_color' => false,
                'line_color' => ['r' => 0, 'g' => 0, 'b' => 0],
                'is_hyaline' => false,
                'env_version' => $envVersion,
                'check_path' => false,
            ]);

            // 6. 处理响应结果
            if ($this->isImageResponse($response)) {
                // 保存到文件并返回URL
                return $this->saveQrCodeToFile($response, $scene, $url);
            } else {
                // 处理错误响应
                return $this->handleErrorResponse($response);
            }

        } catch (\Throwable $e) {
            Log::error('生成小程序码异常：' . $e->getMessage());
            Log::error('异常追踪：' . $e->getTraceAsString());
            return $this->fail('生成失败：' . $e->getMessage());
        }
    }

    /**
     * 判断是否为图片响应
     */
    private function isImageResponse($response): bool
    {
        $contentType = $response->getHeaderLine('content-type');
        return strpos($contentType, 'image/') !== false
            || strpos($contentType, 'application/octet-stream') !== false;
    }

    /**
     * 保存二维码到文件
     */
    private function saveQrCodeToFile($response, $scene, $page)
    {
        try {
            // 生成文件名
            $filename = 'wxacode_' . date('YmdHis') . '_' . substr(md5($scene . $page), 0, 8) . '.png';

            // 保存目录
            $saveDir = public_path() . 'uploads/wxqrcode/';

            // 确保目录存在
            if (!is_dir($saveDir)) {
                mkdir($saveDir, 0755, true);
            }

            $savePath = $saveDir . $filename;

            // 保存文件（新版本方式）
            $content = $response->getContent();
            file_put_contents($savePath, $content);

            // 验证文件
            if (!file_exists($savePath) || filesize($savePath) === 0) {
                throw new \Exception('文件保存失败或为空');
            }

            // 返回结果
            $fileUrl = request()->domain() . '/uploads/wxqrcode/' . $filename;
            return $fileUrl;
//            return $this->success('生成成功', [
//                'url' => $fileUrl,
//                'path' => '/uploads/wxqrcode/' . $filename,
//                'filename' => $filename,
//                'file_size' => filesize($savePath),
//                'scene' => $scene,
//                'page' => $page,
//            ]);

        } catch (\Exception $e) {
            Log::error('保存文件失败：' . $e->getMessage());

            // 备用方案：返回Base64
            $content = $response->getContent();
            $base64 = 'data:image/png;base64,' . base64_encode($content);

            return $this->success('生成成功（Base64格式）', [
                'base64' => $base64,
                'scene' => $scene,
                'page' => $page,
            ]);
        }
    }

    /**
     * 处理错误响应
     */
    private function handleErrorResponse($response)
    {
        $content = $response->getContent();
        $data = json_decode($content, true);

        if (JSON_ERROR_NONE === json_last_error() && isset($data['errcode'])) {
            $errorMsg = $this->getWeChatErrorMessage($data['errcode']);
            Log::error('微信接口错误：' . $errorMsg . '，数据：' . $content);
            return $this->fail('微信接口错误：' . $errorMsg);
        }

        Log::error('未知错误响应：' . $content);
        return $this->fail('生成失败：未知的响应格式');
    }

    /**
     * 获取微信错误信息
     */
    private function getWeChatErrorMessage($errcode)
    {
        $errorMap = [
            -1 => '系统繁忙，请稍候再试',
            40001 => 'AppSecret错误或access_token无效',
            40002 => '无效的凭证类型',
            40013 => '无效的AppID',
            41030 => '页面路径不存在或有权限限制',
            45009 => '接口调用频率超限',
            85064 => '找不到该小程序',
            85065 => '小程序未发布或已下架',
            86004 => '无效的scene参数',
            87009 => '无效的页面路径',
            9401020 => '小程序未发布',
        ];

        return $errorMap[$errcode] ?? ('错误码：' . $errcode);
    }

    /**
     * 测试版本 - 直接输出图片
     */
    public function testGenerate()
    {
        try {
            $scene = $this->request->param('scene', 'test');
            $page = $this->request->param('page', 'pages/index/index');

            $config = WeChatConfigService::getMnpConfig();
            $app = new Application($config);

            $response = $app->createClient()->postJson('/wxa/getwxacodeunlimit', [
                'scene' => $scene,
                'page' => $page,
                'width' => 430,
            ]);

            // 直接输出图片
            header('Content-Type: ' . $response->getHeaderLine('content-type'));
            echo $response->getContent();
            exit;

        } catch (\Exception $e) {
            return json([
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString(),
            ]);
        }
    }

    /**
     * 检查配置和环境
     */
    public function checkEnv()
    {
        try {
            $config = WeChatConfigService::getMnpConfig();

            $checks = [
                'config_exists' => !empty($config),
                'app_id_exists' => !empty($config['app_id']),
                'secret_exists' => !empty($config['secret']),
                'class_exists' => class_exists('EasyWeChat\MiniApp\Application'),
                'createClient_method' => method_exists('EasyWeChat\MiniApp\Application', 'createClient'),
            ];

            // 测试创建实例
            if ($checks['class_exists']) {
                $app = new Application($config);
                $checks['instance_created'] = true;

                // 测试获取access_token
                try {
                    $accessToken = $app->getAccessToken()->getToken();
                    $checks['access_token_ok'] = !empty($accessToken);
                } catch (\Exception $e) {
                    $checks['access_token_error'] = $e->getMessage();
                }
            }

            return $this->success('环境检查', [
                'checks' => $checks,
                'config' => [
                    'app_id' => $config['app_id'] ?? '未设置',
                    'secret_set' => !empty($config['secret']),
                ],
                'suggestions' => $this->getSuggestions($checks),
            ]);

        } catch (\Exception $e) {
            return $this->fail('检查失败：' . $e->getMessage());
        }
    }

    private function getSuggestions($checks)
    {
        $suggestions = [];

        if (!$checks['config_exists']) {
            $suggestions[] = '配置不存在，请检查 WeChatConfigService::getMnpConfig()';
        }

        if (!$checks['app_id_exists']) {
            $suggestions[] = '请在.env中设置 WECHAT_MINI_PROGRAM_APPID';
        }

        if (!$checks['secret_exists']) {
            $suggestions[] = '请在.env中设置 WECHAT_MINI_PROGRAM_SECRET';
        }

        if (!$checks['class_exists']) {
            $suggestions[] = 'EasyWeChat未安装或版本不兼容，请执行：composer require overtrue/wechat';
        }

        return $suggestions;
    }

}