<?php
namespace app\api\controller;
use app\common\controller\Api;
use think\Db;
use think\Request;
use RecursiveIteratorIterator;
use RecursiveDirectoryIterator;
class Facility extends Api
{
    protected $noNeedLogin = ['*'];
    protected $noNeedRight = ['*'];

    /**
     * 获取一张原目录图片对应明细数据
     */
    public function getlsit()
    {
        // 获取前端传入的图片路径参数
        $params = $this->request->param('path', '');
        // 查询数据库
        $res = Db::name('text_to_image')
            ->field('id,chinese_description,english_description,new_image_url,custom_image_url,size,old_image_url,img_name,model')
            ->where('old_image_url', $params)
            ->where('img_name', '<>', '')
            ->order('id desc')
            ->select();
        return json(['code' => 0, 'msg' => '查询成功', 'data' => $res,'count'=>count($res)]);
    }


    /**
     * 获取指定目录所有图片
     */
    public function getPreviewimg()
    {
        $page = (int)$this->request->param('page', 1);
        $limit = (int)$this->request->param('limit', 50);
        $status = $this->request->param('status', '');
        $status_name = $this->request->param('status_name', '');
        $relativePath = $this->request->param('path', '');

        $basePath = ROOT_PATH . 'public/';
        $fullPath = $basePath . $relativePath;

        if (!is_dir($fullPath)) {
            return json(['code' => 1, 'msg' => '原图目录不存在']);
        }

        // 设置缓存路径
        $cacheDir = RUNTIME_PATH . 'image_cache/';
        if (!is_dir($cacheDir)) {
            mkdir($cacheDir, 0755, true);
        }
        $cacheFile = $cacheDir . md5($relativePath) . '.json';

        // 判断缓存文件是否存在，并且最后修改时间在1小时（3600秒）以内
        if (file_exists($cacheFile) && time() - filemtime($cacheFile) < 3600) {
            $imageInfoMap = json_decode(file_get_contents($cacheFile), true);
        } else {
            // 没有缓存或缓存过期，重新扫描目录
            $allImages = glob($fullPath . '/*.{jpg,jpeg,png}', GLOB_BRACE);
            $imageInfoMap = [];
            foreach ($allImages as $imgPath) {
                $relative = str_replace('\\', '/', trim(str_replace($basePath, '', $imgPath), '/'));
                $info = @getimagesize($imgPath);
                $imageInfoMap[$relative] = [
                    'width' => $info[0] ?? 0,
                    'height' => $info[1] ?? 0,
                    'size_kb' => round(filesize($imgPath) / 1024, 2),
                    'created_time' => date('Y-m-d H:i:s', filectime($imgPath))
                ];
            }
            file_put_contents($cacheFile, json_encode($imageInfoMap));
        }

        // 1. 获取所有图片路径
        $relativeImages = array_keys($imageInfoMap);

        // 2. 查询数据库记录（一次性查询所有相关记录）
        $dbRecords = Db::name('text_to_image')
            ->whereIn('old_image_url', $relativeImages)
            ->field('id as img_id, old_image_url, new_image_url, custom_image_url, chinese_description, english_description, img_name, status, status_name')
            ->select();

        // 3. 查询队列表中的记录（获取队列状态信息）
        $queueRecords = Db::name('image_task_log')
            // ->where('status', 0)
            // ->where('log', '队列中')
            ->field('file_name, log')
            ->select();

        // 4. 创建队列信息映射
        $queueMap = [];
        foreach ($queueRecords as $queueItem) {
            $key = str_replace('\\', '/', trim($queueItem['file_name'], '/'));
            $queueMap[$key] = $queueItem['log'];
        }

        // 5. 映射记录
        $processedMap = [];
        foreach ($dbRecords as $item) {
            $key = str_replace('\\', '/', trim($item['old_image_url'], '/'));
            $processedMap[$key] = $item;
        }

        // 6. 构建完整数据并进行筛选
        $filteredData = [];
        foreach ($relativeImages as $path) {
            $item = $processedMap[$path] ?? [];
            $info = $imageInfoMap[$path];

            $dbStatus = isset($item['status']) ? (int)$item['status'] : 0;
            $dbStatusName = isset($item['status_name']) ? trim($item['status_name']) : '';

            // 状态筛选条件
            if ($status !== '' && (int)$status !== $dbStatus) {
                continue;
            }
            if ($status_name !== '' && $dbStatusName !== $status_name) {
                continue;
            }

            $isProcessed = !empty($item['img_name']) && !empty($item['custom_image_url']);
            $queueStatus = $queueMap[$path] ?? '';

            $filteredData[] = [
                'path' => $path,
                'item' => $item,
                'info' => $info,
                'dbStatus' => $dbStatus,
                'dbStatusName' => $dbStatusName,
                'isProcessed' => $isProcessed,
                'queueStatus' => $queueStatus
            ];
        }

        // 7. 获取相同图片数量统计（基于筛选后的结果，只统计有new_image_url的记录）
        $filteredPaths = array_column($filteredData, 'path');
        $sameCountMap = [];
        if (!empty($filteredPaths)) {
            $sameCountMap = Db::name('text_to_image')
                ->whereIn('old_image_url', $filteredPaths)
                ->where('new_image_url', '<>', '')  // 只统计有new_image_url的记录
                ->group('old_image_url')
                ->column('count(*) as cnt', 'old_image_url');
        }

        // 8. 分页处理
        $total = count($filteredData);
        $pagedData = array_slice($filteredData, ($page - 1) * $limit, $limit);

        // 9. 构建最终响应数据
        $resultData = [];
        foreach ($pagedData as $i => $data) {
            $path = $data['path'];
            $item = $data['item'];
            $info = $data['info'];

            $resultData[] = [
                'id' => ($page - 1) * $limit + $i + 1,
                'path' => $path,
                'status' => $data['dbStatus'],
                'status_name' => $data['dbStatusName'],
                'same_count' => $sameCountMap[$path] ?? 0,
                'is_processed' => $data['isProcessed'] ? 1 : 0,
                'queue_status' => $data['queueStatus'],  // 新增队列状态字段
                'new_image_url' => $item['new_image_url'] ?? '',
                'custom_image_url' => $item['custom_image_url'] ?? '',
                'chinese_description' => $item['chinese_description'] ?? '',
                'english_description' => $item['english_description'] ?? '',
                'img_name' => $item['img_name'] ?? '',
                'width' => $info['width'],
                'height' => $info['height'],
                'size_kb' => $info['size_kb'],
                'created_time' => $info['created_time']
            ];
        }

        return json([
            'code' => 0,
            'msg' => '获取成功',
            'data' => $resultData,
            'total' => $total,
            'page' => $page,
            'limit' => $limit
        ]);
    }

    /**
     * 采用缓存机制
     * 获取原图目录及每个目录下的图片数量（优化版）
     */
    public function getPreviewSubDirs()
    {
        // 1. 设置基础路径
        $baseDir = rtrim(str_replace('\\', '/', ROOT_PATH), '/') . '/public/uploads/operate/ai/Preview';
        $baseRelativePath = 'uploads/operate/ai/Preview';

        // 2. 检查目录是否存在
        if (!is_dir($baseDir)) {
            return json(['code' => 1, 'msg' => '目录不存在']);
        }

        // 3. 获取目录最后修改时间作为缓存标识
        $cacheKey = 'preview_dirs_' . md5($baseDir);
        $lastModified = filemtime($baseDir);
        $cacheVersionKey = $cacheKey . '_version';

        // 4. 检查缓存版本是否匹配
        if (cache($cacheVersionKey) != $lastModified) {
            cache($cacheKey, null);
            cache($cacheVersionKey, $lastModified, 86400);
        }

        // 5. 尝试从缓存获取
        if (!$dirList = cache($cacheKey)) {
            // 6. 重新扫描目录
            $dirList = $this->scanDirectories($baseDir, $baseRelativePath);
            cache($cacheKey, $dirList, 86400); // 缓存1天
        }

        return json([
            'code' => 0,
            'msg' => '获取成功',
            'data' => $dirList
        ]);
    }

    /**
     * 扫描目录结构
     */
    private function scanDirectories($baseDir, $baseRelativePath)
    {
        $dirs = [];
        $index = 1;
        $processedDirs = [];

        $scanDir = function ($dirPath, $relativePath) use (&$scanDir, &$dirs, &$index, &$processedDirs) {
            $items = @scandir($dirPath) ?: [];
            foreach ($items as $item) {
                if ($item === '.' || $item === '..') continue;

                $fullPath = $dirPath . '/' . $item;
                $relPath = $relativePath . '/' . $item;

                if (is_dir($fullPath)) {
                    $dirKey = md5($fullPath);
                    if (!isset($processedDirs[$dirKey])) {
                        $processedDirs[$dirKey] = true;
                        $scanDir($fullPath, $relPath);
                    }
                } elseif (preg_match('/\.(jpg|jpeg|png)$/i', $item)) {
                    $parentDir = dirname($fullPath);
                    $relativeDir = dirname($relPath);
                    $key = md5($parentDir);

                    if (!isset($dirs[$key])) {
                        $ctime = @filectime($parentDir) ?: time();

                        // 数据库查询
                        $hasData = Db::name('text_to_image')
                            ->where('custom_image_url', '<>', '')
                            ->where('img_name', '<>', '')
                            ->whereLike('old_image_url', $relativeDir . '/%')
                            ->where('status',1)
                            ->cache(true, 300)
                            ->count();

                        $imageFiles = @glob($parentDir . '/*.{jpg,jpeg,png}', GLOB_BRACE);
                        $imageCount = $imageFiles ? count($imageFiles) : 0;

                        $dirs[$key] = [
                            'id' => $index++,
                            'name' => basename($parentDir),
                            'count' => $hasData,
                            'ctime' => $ctime,
                            'ctime_text' => date('Y-m-d H:i:s', $ctime),
                            'image_count' => $imageCount,
                            'new_image_url' => "/uploads/operate/ai/dall-e/",
                            'old_image_url' => $relativeDir
                        ];
                    }
                }
            }
        };

        $scanDir($baseDir, $baseRelativePath);

        // 按ID降序排序
        $dirList = array_values($dirs);
        usort($dirList, function ($a, $b) {
            return $b['id'] - $a['id'];
        });

        return $dirList;
    }

    /**
     * 手动清除缓存（在目录变更后调用）
     */
    public function clearCache()
    {
        $baseDir = rtrim(str_replace('\\', '/', ROOT_PATH), '/') . '/public/uploads/operate/ai/Preview';
        $cacheKey = 'preview_dirs_' . md5($baseDir);

        cache($cacheKey, null);
        cache($cacheKey . '_version', null);

        return json(['code' => 0, 'msg' => '缓存已清除']);
    }

    /**
     * 不使用缓存机制（查询速度较慢）
     * 获取原图目录及每个目录下的图片数量
     */
//    public function getPreviewSubDirs()
//    {
//        $baseDir = rtrim(str_replace('\\', '/', ROOT_PATH), '/') . '/public/uploads/operate/ai/Preview';
//        $baseRelativePath = 'uploads/operate/ai/Preview';
//
//        if (!is_dir($baseDir)) {
//            return json(['code' => 1, 'msg' => '目录不存在']);
//        }
//
//        $dirs = [];
//        $index = 1;
//
//        /**
//         * 递归扫描目录，提取含图片的子目录信息
//         */
//        $scanDir = function ($dirPath, $relativePath) use (&$scanDir, &$dirs, &$index) {
//            $items = scandir($dirPath);
//            foreach ($items as $item) {
//                if ($item === '.' || $item === '..') continue;
//
//                $fullPath = $dirPath . '/' . $item;
//                $relPath = $relativePath . '/' . $item;
//
//                if (is_dir($fullPath)) {
//                    // 递归子目录
//                    $scanDir($fullPath, $relPath);
//                } else {
//                    // 匹配图片文件
//                    if (preg_match('/\.(jpg|jpeg|png)$/i', $item)) {
//                        $parentDir = dirname($fullPath);
//                        $relativeDir = dirname($relPath);
//                        $key = md5($parentDir);
//
//                        if (!isset($dirs[$key])) {
//                            $ctime = filectime($parentDir);
//
//                            // 数据库统计：已处理图片数量
//                            $hasData = Db::name('text_to_image')
//                                ->where('custom_image_url', '<>', '')
//                                ->where('img_name', '<>', '')
//                                ->whereLike('old_image_url', $relativeDir . '/%')
//                                ->where('status',1)
//                                ->whereNotNull('custom_image_url')
//                                ->count();
//
//                            // 当前目录下图片数量
//                            $imageFiles = glob($parentDir . '/*.{jpg,jpeg,png}', GLOB_BRACE);
//                            $imageCount = is_array($imageFiles) ? count($imageFiles) : 0;
//
//                            $dirs[$key] = [
//                                'id' => $index++,
//                                'name' => basename($parentDir),
//                                'count' => $hasData,
//                                'ctime' => $ctime, // 时间戳，用于排序
//                                'ctime_text' => date('Y-m-d H:i:s', $ctime), // 格式化日期，用于显示
//                                'image_count' => $imageCount,
//                                'new_image_url' => "/uploads/operate/ai/dall-e/",
//                                'old_image_url' => $relativeDir
//                            ];
//                        }
//                    }
//                }
//            }
//        };
//
//        // 执行目录扫描
//        $scanDir($baseDir, $baseRelativePath);
//
//        // 排序：按照创建时间（从新到旧）
//        $dirList = array_values($dirs);
////        usort($dirList, function ($a, $b) {
////            return $b['ctime'] - $a['ctime'];
////        });
//
//        usort($dirList, function ($a, $b) {
//            return $b['id'] - $a['id'];
//        });
//
//
//        return json([
//            'code' => 0,
//            'msg' => '获取成功',
//            'data' => $dirList
//        ]);
//    }


    /**
     * 图片上传
     */
    public function ImgUpload()
    {
        // 处理 CORS OPTIONS 预检请求
        if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {
            header('Access-Control-Allow-Origin: *');
            header('Access-Control-Allow-Methods: POST, OPTIONS');
            header('Access-Control-Allow-Headers: Content-Type, Authorization');
            header('Access-Control-Max-Age: 86400');
            exit(204);
        }

        // 实际请求必须返回 CORS 头
        header('Access-Control-Allow-Origin: *');

        // 获取上传的文件
        $file = request()->file('image');

        if ($file) {
            // 指定目标目录（你想上传到的目录）
            $targetPath = ROOT_PATH . 'public' . DS . 'uploads' . DS . 'operate' . DS . 'ai' . DS . 'Preview';

            // 若目录不存在则创建
            if (!is_dir($targetPath)) {
                mkdir($targetPath, 0755, true);
            }

            // 移动文件到指定目录，并验证大小/格式
            $info = $file->validate([
                'size' => 10485760, // 最大10MB
                'ext' => 'jpg,png'
            ])->move($targetPath);

            if ($info) {
                $fileName = $info->getSaveName();
                $imageUrl = '/uploads/operate/ai/Preview/' . str_replace('\\', '/', $fileName);
                return json(['code' => 0, 'msg' => '成功', 'data' => ['url' => $imageUrl]]);
            } else {
                $res = $file->getError();
                return json(['code' => 1, 'msg' => '失败', 'data' => $res]);
            }
        }

        return json(['code' => 1, 'msg' => '没有文件上传', 'data' => null]);
    }


    /**
     * 查询模版
     */
    public function Template(){
        $Template = Db::name("template")->where('ids',1)->find();
        return json([
            'code' => 0,
            'msg' => '模版',
            'data' => $Template
        ]);
    }

    /**
     * 更新模版
     */
    public function updatetemplate(){
        if (Request::instance()->isPost() == false){
            $this->error('非法请求');
        }
        $params = Request::instance()->post();
        if (empty($params['textareaContent']) || empty($params['width']) || empty($params['height'])) {
            return json(['code' => 1, 'msg' => '参数缺失']);
        }
        $Template = Db::name("template")
            ->where('ids', 1)
            ->update([
                'english_content' => $params['english_content'],  // 更新文生文模版内容
                'content' => $params['textareaContent'],  // 更新图生文模版内容
                'width' => $params['width'],  // 更新宽度
                'height' => $params['height'],  // 更新宽度
            ]);
        if ($Template){
            return json(['code' => 0, 'msg' => '成功']);
        }else{
            return json(['code' => 1, 'msg' => '失败']);
        }
    }

    /**
     * 打包图片
     */
    public function packImagess()
    {
        try {
            $params = $this->request->post();
            $paths = $params['paths'] ?? [];

            if (empty($paths) || !is_array($paths)) {
                return json(['code' => 1, 'msg' => '路径参数不能为空或格式不正确']);
            }

            // 设置基础路径和压缩目录路径
            $basePath = ROOT_PATH . 'public/';
            $zipDir = $basePath . 'uploads/operate/ai/zip/';

            if (!is_dir($zipDir)) {
                mkdir($zipDir, 0755, true);
            }

            // 压缩包文件名及完整路径
            $fileName = 'images_' . date('Ymd_His') . '.zip';
            $zipPath = $zipDir . $fileName;

            // 创建 Zip 文件
            $zip = new \ZipArchive();
            if ($zip->open($zipPath, \ZipArchive::CREATE) !== TRUE) {
                return json(['code' => 1, 'msg' => '无法创建压缩包']);
            }

            // 添加文件到压缩包
            $addCount = 0;
            foreach ($paths as $relativePath) {
                $relativePath = ltrim($relativePath, '/');
                $fullPath = $basePath . $relativePath;

                if (file_exists($fullPath)) {
                    $zip->addFile($fullPath, basename($fullPath)); // 仅保存文件名
                    $addCount++;
                }
            }

            $zip->close();

            if ($addCount === 0) {
                return json(['code' => 1, 'msg' => '未找到有效图片，未生成压缩包']);
            }

            // 返回下载地址（注意路径与保存路径一致）
            $downloadUrl = request()->domain() . '/uploads/operate/ai/zip/' . $fileName;

            return json([
                'code' => 0,
                'msg' => '打包成功',
                'download_url' => $downloadUrl
            ]);
        } catch (\Exception $e) {
            return json([
                'code' => 1,
                'msg' => '异常错误：' . $e->getMessage()
            ]);
        }
    }

}