<?php

namespace app\common\service;

use app\common\service\storage\Driver;
use app\common\service\ConfigService;
use app\common\service\WeChatConfigService;
use EasyWeChat\Factory;
use think\facade\Log;

/**
 * 礼品卡二维码生成服务
 */
class GiftCardQrCodeService
{
    /**
     * @notes 生成礼品卡小程序二维码并上传到七牛云
     * @param string $cardNo 礼品卡卡号
     * @param string $cardPass 礼品卡密码
     * @return string|false 返回二维码文件路径或false
     */
    public static function generateAndUploadQrCode($cardNo, $cardPass)
    {
        try {
            // 小程序页面路径（使用首页，通过场景值处理）
            $page = 'pages/card-exchange/card-exchange?cardPass='.$cardPass;

            // 优化场景值格式，确保不超过32字符限制
            $scene = $cardNo . '_' . $cardPass;

            // 如果场景值超过32字符，使用base64编码压缩
            if (strlen($scene) > 32) {
                $scene = $cardPass;
                $scene = base64_encode($cardNo . '|' . $cardPass);
                if (strlen($scene) > 32) {
                    $scene = substr($scene, 0, 32);
                }
            }

            // 生成小程序码
            $config = WeChatConfigService::getMnpConfig();
            $app = Factory::miniProgram($config);
            $accessToken = $app->access_token->getToken()['access_token'];
            outFileLog($accessToken,'qr_code','$accessToken');
            $url = "https://api.weixin.qq.com/wxa/getwxacodeunlimit?access_token={$accessToken}";

            $data = [
                'scene' => $scene,
                'page' => $page,
                'width' => 280,
                'auto_color' => false,
                'line_color' => ['r' => 0, 'g' => 0, 'b' => 0],
                'is_hyaline' => false
            ];

            Log::info('生成小程序码参数', [
                'scene' => $scene,
                'scene_length' => strlen($scene),
                'page' => $page,
                'cardPass' => $cardPass,
            ]);

            $ch = curl_init();
            curl_setopt($ch, CURLOPT_URL, $url);
            curl_setopt($ch, CURLOPT_POST, true);
            curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($data));
            curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
            curl_setopt($ch, CURLOPT_HTTPHEADER, [
                'Content-Type: application/json; charset=utf-8'
            ]);
            curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);

            $response = curl_exec($ch);
            outFileLog($response,'qr_code','$response');
            $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            curl_close($ch);
            outFileLog($httpCode,'qr_code','$httpCode');
            if ($httpCode === 200) {
                // 检查是否为JSON错误响应
                $jsonData = json_decode($response, true);
                outFileLog($jsonData,'qr_code','$jsonData');
                if ($jsonData && isset($jsonData['errcode'])) {
                    Log::error('微信API错误', $jsonData);
                    return false;
                }

                // 创建保存目录
                $saveDir = 'resource/image/gift_card/qr_code/';
                if (!is_dir($saveDir)) {
                    mkdir($saveDir, 0755, true);
                }

                $fileName = 'gift_card_' . $cardNo . '_' . time() . '.png';
                $localPath = $saveDir . $fileName;

                // 保存二进制数据到本地
                $result = file_put_contents($localPath, $response);

                if ($result === false) {
                    Log::error('保存二维码文件失败', ['path' => $localPath]);
                    return false;
                }

                // 验证文件是否为有效的PNG图片
                $imageInfo = getimagesize($localPath);
                if ($imageInfo === false || $imageInfo['mime'] !== 'image/png') {
                    Log::error('生成的文件不是有效的PNG图片', [
                        'path' => $localPath,
                        'imageInfo' => $imageInfo
                    ]);
                    if (file_exists($localPath)) {
                        unlink($localPath);
                    }
                    return false;
                }

                Log::info('二维码文件保存成功', [
                    'localPath' => $localPath,
                    'fileSize' => filesize($localPath)
                ]);

                // 上传到七牛云
                $remotePath = 'gift_card/qr_code/' . $fileName;
                outFileLog($remotePath,'qr_code','$remotePath');
                $uploadResult = self::uploadToQiniu($localPath, $remotePath);
                outFileLog($uploadResult,'qr_code','$uploadResult');
                if ($uploadResult) {
                    Log::info('二维码上传七牛云成功', [
                        'localPath' => $localPath,
                        'remotePath' => $remotePath
                    ]);

                    // 删除本地临时文件
                    if (file_exists($localPath)) {
                        unlink($localPath);
                    }

                    return $remotePath;
                } else {
                    Log::error('上传到七牛云失败', [
                        'localPath' => $localPath,
                        'remotePath' => $remotePath
                    ]);
                    // 保留本地文件作为备份
                    return false;
                }

            } else {
                Log::error('HTTP请求失败', [
                    'code' => $httpCode,
                    'response' => substr($response, 0, 500)
                ]);
                return false;
            }

        } catch (\Exception $e) {
            Log::error('生成礼品卡二维码失败', [
                'error' => $e->getMessage(),
                'trace' => $e->getTraceAsString()
            ]);
            return false;
        }
    }

    /**
     * @notes 上传文件到七牛云
     * @param string $localPath 本地文件路径
     * @param string $remotePath 远程文件路径
     * @return bool
     */
    private static function uploadToQiniu($localPath, $remotePath)
    {
        try {
            // 检查本地文件是否存在
            if (!file_exists($localPath)) {
                Log::error('本地文件不存在', ['path' => $localPath]);
                return false;
            }

            $config = [
                'default' => ConfigService::get('storage', 'default', 'local'),
                'engine' => ConfigService::get('storage_engine')
            ];

            Log::info('存储配置', $config);

            if ($config['default'] === 'qiniu') {
                $storageDriver = new Driver($config);

                // 使用绝对路径进行上传
                $absolutePath = realpath($localPath);
                $result = $storageDriver->fetch($absolutePath, $remotePath);

                if (!$result) {
                    $error = $storageDriver->getError();
                    Log::error('七牛云上传失败', [
                        'error' => $error,
                        'localPath' => $absolutePath,
                        'remotePath' => $remotePath
                    ]);
                    return false;
                }

                Log::info('七牛云上传成功', [
                    'localPath' => $absolutePath,
                    'remotePath' => $remotePath
                ]);

                return true;
            } else {
                // 如果不是七牛云存储，返回本地路径
                Log::info('使用本地存储', ['path' => $localPath]);
                return true;
            }

        } catch (\Exception $e) {
            Log::error('上传到七牛云失败', [
                'error' => $e->getMessage(),
                'localPath' => $localPath,
                'remotePath' => $remotePath
            ]);
            return false;
        }
    }

    /**
     * @notes 批量生成二维码
     * @param array $giftCards 礼品卡数组
     * @return array
     */
    public static function batchGenerateQrCode($giftCards)
    {
        $result = [
            'success' => 0,
            'failed' => 0,
            'total' => count($giftCards),
            'details' => []
        ];

        foreach ($giftCards as $card) {
            $qrCodePath = self::generateAndUploadQrCode($card['card_no'], $card['card_pass']);

            if ($qrCodePath) {
                // 更新数据库中的二维码路径
                \app\common\model\GiftCardInfo::where('id', $card['id'])
                    ->update(['qr_code_path' => $qrCodePath]);
                $result['success']++;
                $result['details'][] = [
                    'card_no' => $card['card_no'],
                    'status' => 'success',
                    'qr_code_path' => $qrCodePath
                ];
            } else {
                $result['failed']++;
                $result['details'][] = [
                    'card_no' => $card['card_no'],
                    'status' => 'failed',
                    'error' => '生成或上传失败'
                ];
            }
        }

        return $result;
    }
}