<?php

namespace app\job;

use think\Db;
use think\Queue;
use think\queue\Job;

class TextToImageJob
{
    protected $config = [
        'gpt' => [
            'api_key' => 'sk-Bhos1lXTRpZiAAmN06624a219a874eCd91Dc068b902a3e73',
            'api_url' => 'https://one.opengptgod.com/v1/chat/completions'
        ],
        'dalle' => [
            'api_key' => 'sk-e0JuPjMntkbgi1BoMjrqyyzMKzAxILkQzyGMSy3xiMupuoWY',
            'api_url' => 'https://niubi.zeabur.app/v1/images/generations'
        ]
    ];


    /**
     * 文生图队列任务
     */
    public function fire(Job $job, $data)
    {
        $logId = $data['log_id'] ?? null;

        try {
            if (!isset($data['type']) || $data['type'] !== '文生图') {
                $job->delete();
                return;
            }

            $startTime = date('Y-m-d H:i:s');
            echo "━━━━━━━━━━ ▶ 文生图任务开始处理━━━━━━━━━━\n";
            echo "处理时间：{$startTime}\n";

            // 更新日志状态为处理中
            if ($logId) {
                Db::name('image_task_log')->where('id', $logId)->update([
                    'status' => 1,
                    'log' => '文生图处理中',
                    'update_time' => $startTime
                ]);
            }

            $fullPath = rtrim($data['sourceDir'], '/') . '/' . ltrim($data['file_name'], '/');

            $list = Db::name("text_to_image")
                ->where('old_image_url', $fullPath)
                ->where('img_name', '<>', '')
                ->where('status', 0)
                ->select();

            if (!empty($list)) {
                $total = count($list);
                echo "📊 共需处理：{$total} 条记录\n\n";

                foreach ($list as $index => $row) {
                    $currentIndex = $index + 1;
                    $begin = date('Y-m-d H:i:s');
                    echo "处理时间：{$begin}\n";
                    echo "👉 正在处理第 {$currentIndex} 条，ID: {$row['id']}\n";

                    // 调用生成图像方法
                    $result = $this->textToImage(
                        $data["file_name"],
                        $data["outputDir"],
                        $data["width"],
                        $data["height"],
                        $row["english_description"],
                        $row["img_name"],
                        $data["selectedOption"] ?? null
                    );

                    $resultText = ($result === true || $result === 1 || $result === '成功') ? '成功' : '失败或无返回';
                    echo "✅ 处理结果：{$resultText}\n";

                    $end = date('Y-m-d H:i:s');
                    echo "完成时间：{$end}\n";
                    echo "Processed: " . static::class . "\n";
                    echo "文生图已处理完成\n\n";
                }

                // 更新日志为成功
                if ($logId) {
                    Db::name('image_task_log')->where('id', $logId)->update([
                        'status' => 2,
                        'log' => '文生图执行成功',
                        'update_time' => date('Y-m-d H:i:s')
                    ]);
                }

                echo date('Y-m-d H:i:s') . " ✅ 文生图任务全部完成\n";
            } else {
                echo "⚠ 未找到可处理的数据，跳过执行\n";

                if ($logId) {
                    Db::name('image_task_log')->where('id', $logId)->update([
                        'status' => 2,
                        'log' => '无数据可处理，已跳过',
                        'update_time' => date('Y-m-d H:i:s')
                    ]);
                }
            }

            $job->delete();

        } catch (\Exception $e) {
            echo "❌ 异常信息: " . $e->getMessage() . "\n";
            echo "📄 文件: " . $e->getFile() . "\n";
            echo "📍 行号: " . $e->getLine() . "\n";

            if ($logId) {
                Db::name('image_task_log')->where('id', $logId)->update([
                    'status' => -1,
                    'log' => '文生图失败：' . $e->getMessage(),
                    'update_time' => date('Y-m-d H:i:s')
                ]);
            }

            $job->delete();
        }
    }

    /**
     * 任务失败时的处理
     */
    public function failed($data)
    {
        // 记录失败日志或发送通知
        echo "ImageJob failed: " . json_encode($data);
    }

    /**
     * 文生图接口
     */
    public function textToImage($fileName, $outputDirRaw, $width, $height, $prompt, $img_name,$selectedOption)
    {
        $rootPath = str_replace('\\', '/', ROOT_PATH);
        $outputDir = rtrim($rootPath . 'public/' . $outputDirRaw, '/') . '/';
        $dateDir = date('Y-m-d') . '/';
        $fullBaseDir = $outputDir . $dateDir;

        // 创建输出目录结构
        foreach ([$fullBaseDir, $fullBaseDir . '1024x1024/', $fullBaseDir . "{$width}x{$height}/"] as $dir) {
            if (!is_dir($dir)) {
                mkdir($dir, 0755, true);
            }
        }


        // 查询数据库记录
        $record = Db::name('text_to_image')
            ->where('old_image_url', 'like', "%{$fileName}")
            ->order('id desc')
            ->find();

        if (!$record) {
            return '没有找到匹配的图像记录';
        }

        // 写入 prompt 日志
        $logDir = $rootPath . 'runtime/logs/';
        if (!is_dir($logDir)) mkdir($logDir, 0755, true);

        // 调用文生图模型接口生成图像
        $startTime = microtime(true);


        // 清理 prompt 的换行
        $prompt = preg_replace('/[\r\n\t]+/', ' ', $prompt);

        // 定义要跳过的关键词（可按需扩展）
        $skipKeywords = ['几何', 'geometry', 'geometric'];
        foreach ($skipKeywords as $keyword) {
            // 判断提示词中是否包含关键词（不区分大小写）
            if (stripos($prompt, $keyword) !== false) {
                $skipId = $record['id'];
                echo "🚫 跳过生成：提示词中包含关键词“{$keyword}”，记录 ID：{$skipId}\n";
                $updateRes = Db::name('text_to_image')->where('id', $skipId)->update([
                    'status' => 3,
                    'update_time' => date('Y-m-d H:i:s')
                ]);
                return "跳过生成：记录 ID {$skipId}，包含关键词 - {$keyword}";
            }
        }

        //文生图调用
        $dalle1024 = $this->callDalleApi($prompt,$selectedOption);

        //查询接口调用时长
        $endTime = microtime(true);
        $executionTime = $endTime - $startTime;
        echo "API调用耗时: " . round($executionTime, 3) . " 秒\n";

        // 检查 URL 返回是否成功
        if (!isset($dalle1024['data'][0]['url']) || empty($dalle1024['data'][0]['url'])) {
            $errorText = $dalle1024['error']['message'] ?? '未知错误';
            Db::name('text_to_image')->where('id', $record['id'])->update([
                'error_msg' => '生成失败：' . $errorText,
                'status' => 0
            ]);
            return '生成失败：' . $errorText;
        }

        // 下载图像
        $imgUrl1024 = $dalle1024['data'][0]['url'];
        $imgData1024 = @file_get_contents($imgUrl1024);
        if (!$imgData1024 || strlen($imgData1024) < 1000) {
            return "下载图像失败或内容异常";
        }

        // 保存原图（1024x1024）
        $img_name = preg_replace('/[^\x{4e00}-\x{9fa5}A-Za-z0-9_\- ]/u', '', $img_name);
        $img_name = mb_substr($img_name, 0, 30); // 限制为前30个字符（避免路径过长）

        $filename1024 = $img_name . '.png';
        $savePath1024 = $fullBaseDir . '1024x1024/' . $filename1024;
        file_put_contents($savePath1024, $imgData1024);

        // 处理缩略图
        $im = @imagecreatefromstring($imgData1024);
        if (!$im) return "图像格式不受支持或已损坏";

        $srcWidth = imagesx($im);
        $srcHeight = imagesy($im);
        $srcRatio = $srcWidth / $srcHeight;
        $dstRatio = $width / $height;

        // 居中裁剪逻辑
        if ($srcRatio > $dstRatio) {
            $cropHeight = $srcHeight;
            $cropWidth = intval($srcHeight * $dstRatio);
            $srcX = intval(($srcWidth - $cropWidth) / 2);
            $srcY = 0;
        } else {
            $cropWidth = $srcWidth;
            $cropHeight = intval($srcWidth / $dstRatio);
            $srcX = 0;
            $srcY = intval(($srcHeight - $cropHeight) / 2);
        }

        $dstImg = imagecreatetruecolor($width, $height);
        imagecopyresampled($dstImg, $im, 0, 0, $srcX, $srcY, $width, $height, $cropWidth, $cropHeight);

        // 保存裁剪后图像
        $filenameCustom = $img_name . ".png";
        $savePathCustom = $fullBaseDir . "{$width}x{$height}/" . $filenameCustom;
        imagepng($dstImg, $savePathCustom);
        imagedestroy($im);
        imagedestroy($dstImg);

        $status = trim($img_name) === '' ? 0 : 1;
        // 更新数据库记录
        $updateRes = Db::name('text_to_image')->where('id', $record['id'])->update([
            'new_image_url' => str_replace($rootPath . 'public/', '', $savePath1024),
            'custom_image_url' => str_replace($rootPath . 'public/', '', $savePathCustom),
            'img_name' => $img_name,
            'error_msg' => '',
            'model' => $selectedOption,
            'quality' => 'hd',
            'style' => 'vivid',
            'size' => "{$width}x{$height}",
            'updated_time' => date('Y-m-d H:i:s'),
            'status' => $status
        ]);
        return 0;
    }

    /**
     * 处理字符串长度，超出限制则截断
     *
     * @param string $str 输入字符串
     * @param int $maxLength 最大长度限制（默认200）
     * @return string 处理后的字符串
     */
    public function limitStringLength($str, $maxLength = 10)
    {
        // 如果字符串长度没有超出限制，直接返回
        if (mb_strlen($str, 'UTF-8') <= $maxLength) {
            return $str;
        }

        // 超出限制则截断
        return mb_substr($str, 0, $maxLength, 'UTF-8');
    }

    public function cleanImageUrl($input) {
        // 去除字符串首尾空格和中文引号替换为英文引号
        $input = trim($input);
        $input = str_replace(['“', '”', '‘', '’'], '"', $input);

        // 判断是否为纯中文文字
        if (preg_match('/^[\x{4e00}-\x{9fa5}]+$/u', $input)) {
            // 纯中文：替换掉不适合用于文件名的字符
            $cleaned = preg_replace('/[\/\\\:\*\?"<>\|，。！￥【】、；‘’“”《》\s]+/u', '', $input);
        } elseif (preg_match('/[a-zA-Z]/', $input) && !preg_match('/[\x{4e00}-\x{9fa5}]/u', $input)) {
            // 如果是纯字母和空格，且没有中文字符：保留空格，去掉其他符号
            $cleaned = preg_replace('/[^a-zA-Z\s]/', '', $input);
        } else {
            // 如果包含中文或是其他混合字符，按照纯中文的规则清理符号
            $cleaned = preg_replace('/[\/\\\:\*\?"<>\|，。！￥【】、；‘’“”《》\s]+/u', '', $input);
        }

        return $cleaned;
    }


    /**
     * 文生图模
     */
    public function callDalleApi($prompt,$selectedOption)
    {
        if($selectedOption == 'dall-e-3'){
            $data = [
                'prompt' => $prompt,
                'model'   => $selectedOption,
                'n'       => 1,
                'size'    => '1024x1024',
                'quality' => 'standard',
                'style'   => 'vivid',
                'response_format' => 'url',
                'session_id' => null,
                'context_reset' => true
            ];
        }else{
            $data = [
                'prompt' => $prompt,
                'model'   => $selectedOption,
                'n'       => 1,
                'size'    => '1024x1024',
                'quality' => 'hd',
                'style'   => 'vivid',
                'response_format' => 'url',
                'session_id' => null,
                'context_reset' => true
            ];
        }

        return $this->callApi($this->config['dalle']['api_url'], $this->config['dalle']['api_key'], $data);
    }

    /**
     * 通用API调用方法
     */
    public function callApi($url, $apiKey, $data)
    {
        $maxRetries = 2;
        $attempt = 0;
        $lastError = '';

        while ($attempt <= $maxRetries) {
            $ch = curl_init();
            curl_setopt_array($ch, [
                CURLOPT_URL => $url,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_POST => true,
                CURLOPT_POSTFIELDS => json_encode($data),
                CURLOPT_HTTPHEADER => [
                    'Content-Type: application/json',
                    'Authorization: Bearer ' . $apiKey
                ],
                CURLOPT_TIMEOUT => 120,
                CURLOPT_SSL_VERIFYPEER => false,
                CURLOPT_SSL_VERIFYHOST => 0,
                CURLOPT_TCP_KEEPALIVE => 1,
                CURLOPT_FORBID_REUSE => false
            ]);

            $response = curl_exec($ch);
            $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            $curlError = curl_error($ch);
            curl_close($ch);

            if ($response !== false && $httpCode === 200) {
                $result = json_decode($response, true);
                return $result;
            }
            $lastError = $curlError ?: "HTTP错误：{$httpCode}";
            $attempt++;
            sleep(1);
        }
        throw new \Exception("请求失败（重试{$maxRetries}次）：{$lastError}");
    }


}