<?php

namespace App\Http\Controllers\AIGeneration;

use Illuminate\Routing\Controller as BaseController;
use App\Libs\Utils;
use App\Services\AIGeneration\AIVideoGenerationService;
use App\Transformer\AIGeneration\AIGenerationTransformer;
use Illuminate\Http\Request;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Validator;
use App\Libs\ApiResponse;
use App\Models\AIElement;

class VideoGenerationController extends BaseController
{
    use ApiResponse;
    private $aiVideoGenerationService;

    public function __construct(
        AIVideoGenerationService $aiVideoGenerationService
    ) {
        $this->aiVideoGenerationService = $aiVideoGenerationService;
    }

    /**
     * 创建视频生成任务(即梦AI)
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function createJimengTask(Request $request): JsonResponse
    {
        $data = $request->all();
        
        // 首先验证基本参数
        $baseRules = [
            'prompt' => 'required|string|max:1000',
            'seed' => 'required|integer',
            'video_duration' => 'required|in:5,10',
            'video_resolution' => 'required|in:720P,1080P'
        ];
        
        $baseMessages = [
            'prompt.required' => '提示词不能为空',
            'prompt.max' => '提示词不能超过1000个字符',
            'seed.required' => '随机种子不能为空',
            'seed.integer' => '随机种子必须是整数',
            'video_duration.required' => '请选择视频时长',
            'video_duration.in' => '视频时长只能是5s或10s',
            'video_resolution.required' => '请选择视频分辨率',
            'video_resolution.in' => '视频分辨率只能是720P或1080P',
        ];
        
        // 动态构建验证规则
        $validationRules = $baseRules;
        $validationMessages = $baseMessages;
        
        // 检查是否有首帧URL
        if (isset($data['first_frame_url'])) {
            $validationRules['first_frame_url'] = 'url';
            $validationMessages['first_frame_url.url'] = '首帧图片URL格式不正确';
        }
        
        // 检查是否有尾帧URL
        if (isset($data['tail_frame_url'])) {
            $validationRules['tail_frame_url'] = 'url';
            $validationMessages['tail_frame_url.url'] = '尾帧图片URL格式不正确';
        }
        
        // 检查是否有首帧文件
        if ($request->hasFile('first_frame_file')) {
            $validationRules['first_frame_file'] = 'image|mimes:jpeg,png|max:4800';
            $validationMessages = array_merge($validationMessages, [
                'first_frame_file.image' => '首帧必须是图片文件',
                'first_frame_file.mimes' => '首帧图片必须是jpeg,png格式',
                'first_frame_file.max' => '首帧图片大小不能超过4.7MB',
            ]);
        }
        
        // 检查是否有尾帧文件
        if ($request->hasFile('tail_frame_file')) {
            $validationRules['tail_frame_file'] = 'image|mimes:jpeg,png|max:4800';
            $validationMessages = array_merge($validationMessages, [
                'tail_frame_file.image' => '尾帧必须是图片文件',
                'tail_frame_file.mimes' => '尾帧图片必须是jpeg,png格式',
                'tail_frame_file.max' => '尾帧图片大小不能超过4.7MB',
            ]);
        }

        if (isset($data['tail_frame_url']) && !isset($data['first_frame_url'])) {
            Utils::throwError('1002:提供尾帧URL时必须提供首帧URL');
        }

        if ($request->hasFile('tail_frame_file') && !$request->has('first_frame_file')) {
            Utils::throwError('1002:提供尾帧文件时必须提供首帧文件');
        }
        
        $validator = Validator::make($data, $validationRules, $validationMessages);
        
        if ($validator->fails()) {
            Utils::throwError('1002:'.$validator->errors()->first());
        }

        $firstFrame = null;
        $tailFrame = null;

        // 处理首帧图片（文件上传方式）
        if ($request->hasFile('first_frame_file')) {
            $firstFrameFile = $request->file('first_frame_file');
            $firstFrame = $this->processFrameFile($firstFrameFile, 'first');
            $data['first_frame_url'] = $firstFrame['url'];
        }
        // 处理首帧图片（URL方式）
        elseif (isset($data['first_frame_url']) && !empty($data['first_frame_url'])) {
            $firstFrame = Utils::getRemoteImageInfo($data['first_frame_url'], true);
            if (!$firstFrame) {
                Utils::throwError('1003:首帧图片获取失败');
            }
        }

        // 处理尾帧图片（文件上传方式）
        if ($request->hasFile('tail_frame_file')) {
            $tailFrameFile = $request->file('tail_frame_file');
            $tailFrame = $this->processFrameFile($tailFrameFile, 'tail');
            $data['tail_frame_url'] = $tailFrame['url'];
        }
        // 处理尾帧图片（URL方式）
        elseif (isset($data['tail_frame_url']) && !empty($data['tail_frame_url'])) {
            $tailFrame = Utils::getRemoteImageInfo($data['tail_frame_url'], true);
            if (!$tailFrame) {
                Utils::throwError('1003:尾帧图片获取失败');
            }
        }
        
        // 验证首帧图片规格（如果存在）
        if ($firstFrame) {
            $this->validateFrameSpecs($firstFrame, '首帧');
        }
        
        // 验证尾帧图片规格（如果存在）
        if ($tailFrame) {
            $this->validateFrameSpecs($tailFrame, '尾帧');
        }
        
        // 如果首尾帧都存在，验证比例是否相同
        if ($firstFrame && $tailFrame) {
            $firstRatio = round($firstFrame['width'] / $firstFrame['height'], 2);
            $tailRatio = round($tailFrame['width'] / $tailFrame['height'], 2);
            
            if ($firstRatio != $tailRatio) {
                Utils::throwError('1003:尾帧图片与首帧图片比例必须相同');
            }
        }

        $task = $this->aiVideoGenerationService->createJimengTask($data);
        return $this->success(['task_id' => $task->id, 'status' => $task->status]);
    }

    /**
     * 查询视频任务状态
     *
     * @param string $taskId
     * @return JsonResponse
     */
    public function taskStatus(string $taskId): JsonResponse
    {
        $task = \App\Models\MpGenerateVideoTask::where('id', $taskId)->first();

        if (!$task) {
            return response()->json([
                'success' => false,
                'message' => '任务不存在'
            ], 404);
        }

        return response()->json([
            'success' => true,
            'data' => [
                'task_id' => $task->id,
                'status' => $task->status,
                'result_url' => $task->result_url,
                'error_message' => $task->error_message,
                'created_at' => $task->created_at,
                'started_at' => $task->started_at,
                'completed_at' => $task->completed_at
            ]
        ]);
    }

    /**
     * 处理帧图片文件
     * 
     * @param \Illuminate\Http\UploadedFile $file
     * @param string $frameType 帧类型（first/tail）
     * @return array
     */
    private function processFrameFile($file, string $frameType): array
    {
        // 验证图片信息
        $frameInfo = @getimagesize($file->getPathname());
        
        if (!$frameInfo) {
            Utils::throwError('1003:' . ($frameType === 'first' ? '首帧' : '尾帧') . '图片格式无效');
        }
        
        $frameData = [
            'width' => $frameInfo[0],
            'height' => $frameInfo[1],
            'size' => $file->getSize(),
        ];
        
        // 上传图片到服务器
        try {
            $frameData['url'] = uploadFileByTos('image', $file);
        } catch (\Exception $e) {
            Utils::throwError('1003:' . ($frameType === 'first' ? '首帧' : '尾帧') . '图片上传失败：' . $e->getMessage());
        }
        
        return $frameData;
    }

    /**
     * 验证帧图片规格
     * 
     * @param array $frame
     * @param string $frameName
     * @return void
     */
    private function validateFrameSpecs(array $frame, string $frameName): void
    {
        // 1.图片文件最大4.7MB
        if ($frame['size'] > 13 * 1024 * 1024) {
            Utils::throwError('1003:' . $frameName . '图片大小不能超过10MB');
        }
        
        // 2.图片分辨率最大: 4096*4096, 最短边不低于320
        $minDimension = min($frame['width'], $frame['height']);
        $maxDimension = max($frame['width'], $frame['height']);
        
        if ($maxDimension > 4096 || $minDimension < 320) {
            Utils::throwError('1003:' . $frameName . '图片分辨率不能超过4096*4096，且最短边不能低于320');
        }
        
        // 3.图片长边与短边比例在3以内
        if ($maxDimension / $minDimension > 3) {
            Utils::throwError('1003:' . $frameName . '图片长边与短边比例不能超过3');
        }
    }

    /**
     * 创建 Seedance 1.5 Pro 视频生成任务
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function createSeedanceTask(Request $request): JsonResponse
    {
        $data = $request->all();
        
        // 验证基本参数
        $baseRules = [
            'model' => 'required|string|in:doubao-seedance-1-5-pro-251215,doubao-seedance-1-0-pro-250528,doubao-seedance-1-0-pro-fast-251015',
            'prompt' => 'required|max:1000',
            // 'content' => 'required|array|min:1',
        ];
        
        $baseMessages = [
            'model.required' => '模型参数不能为空',
            'model.in' => '模型只支持 doubao-seedance-1-5-pro-251215、doubao-seedance-1-0-pro-250528、doubao-seedance-1-0-pro-fast-251015',
            'prompt.required' => '提示词不能为空',
            'prompt.max' => '提示词不能超过1000个字符',
            // 'content.required' => '内容参数不能为空',
            // 'content.array' => '内容参数必须是数组',
            // 'content.min' => '内容参数至少包含一个元素',
        ];
        
        // 可选参数验证
        $optionalRules = [
            'callback_url' => 'nullable|url',
            'return_last_frame' => 'nullable|boolean',
            'service_tier' => 'nullable|in:default,flex',
            'execution_expires_after' => 'nullable|integer|min:3600|max:259200',
            'generate_audio' => 'nullable|boolean',
            'draft' => 'nullable|boolean',
            'video_resolution' => 'required|in:480P,720P,1080P',
            'ratio' => 'nullable|in:16:9,4:3,1:1,3:4,9:16,21:9,adaptive',
            'video_duration' => 'required|integer|min:2|max:12',
            'frames' => 'nullable|integer|min:29|max:289',
            'seed' => 'nullable|integer|min:-1|max:4294967295',
            'camera_fixed' => 'nullable|boolean',
            'watermark' => 'nullable|boolean',
        ];
        
        $optionalMessages = [
            'callback_url.url' => '回调地址格式不正确',
            'service_tier.in' => '服务等级只能是 default 或 flex',
            'execution_expires_after.integer' => '任务超时时间必须是整数',
            'execution_expires_after.min' => '任务超时时间不能少于3600秒',
            'execution_expires_after.max' => '任务超时时间不能超过259200秒',
            'video_resolution.required' => '请选择视频分辨率',
            'video_resolution.in' => '分辨率只能是 480P、720P 或 1080P',
            'ratio.in' => '宽高比参数不正确',
            'video_duration.required' => '请填写视频时长',
            'video_duration.integer' => '视频时长必须是整数',
            'video_duration.min' => '视频时长不能少于2秒',
            'video_duration.max' => '视频时长不能超过12秒',
            'frames.integer' => '帧数必须是整数',
            'frames.min' => '帧数不能少于29',
            'frames.max' => '帧数不能超过289',
            'seed.integer' => '随机种子必须是整数',
            'seed.min' => '随机种子不能小于-1',
            'seed.max' => '随机种子不能超过4294967295',
        ];

        $validationRules = array_merge($baseRules, $optionalRules);
        $validationMessages = array_merge($baseMessages, $optionalMessages);

        // 检查是否有首帧URL
        if (isset($data['first_frame_url'])) {
            $optionalRules['first_frame_url'] = 'url';
            $optionalMessages['first_frame_url.url'] = '首帧图片URL格式不正确';
        }
        
        // 检查是否有尾帧URL
        if (isset($data['tail_frame_url'])) {
            $optionalRules['tail_frame_url'] = 'url';
            $optionalMessages['tail_frame_url.url'] = '尾帧图片URL格式不正确';
        }
        
        // 检查是否有首帧文件
        if ($request->hasFile('first_frame_file')) {
            $optionalRules['first_frame_file'] = 'image|mimes:jpeg,png|max:4800';
            $optionalMessages = array_merge($optionalMessages, [
                'first_frame_file.image' => '首帧必须是图片文件',
                'first_frame_file.mimes' => '首帧图片必须是jpeg,png格式',
                'first_frame_file.max' => '首帧图片大小不能超过4.7MB',
            ]);
        }
        
        // 检查是否有尾帧文件
        if ($request->hasFile('tail_frame_file')) {
            $optionalRules['tail_frame_file'] = 'image|mimes:jpeg,png|max:4800';
            $optionalMessages = array_merge($optionalMessages, [
                'tail_frame_file.image' => '尾帧必须是图片文件',
                'tail_frame_file.mimes' => '尾帧图片必须是jpeg,png格式',
                'tail_frame_file.max' => '尾帧图片大小不能超过4.7MB',
            ]);
        }

        if (isset($data['tail_frame_url']) && !isset($data['first_frame_url'])) {
            Utils::throwError('1002:提供尾帧URL时必须提供首帧URL');
        }

        if ($request->hasFile('tail_frame_file') && !$request->has('first_frame_file')) {
            Utils::throwError('1002:提供尾帧文件时必须提供首帧文件');
        }
        
        $validator = Validator::make($data, $validationRules, $validationMessages);
        
        if ($validator->fails()) {
            Utils::throwError('1002:'.$validator->errors()->first());
        }

        $data['content'] = [
            [
                'type'  => 'text',
                'text'  => $data['prompt'],
            ],
        ];

        $firstFrame = null;
        $tailFrame = null;

        // 以下首尾帧做模型兼容:
        // doubao-seedance-1-0-pro-fast-251015只支持文生视频、图生视频-首帧
        // 处理首帧图片（文件上传方式）
        if ($request->hasFile('first_frame_file')) {
            $firstFrameFile = $request->file('first_frame_file');
            $firstFrame = $this->processFrameFile($firstFrameFile, 'first');
            $data['first_frame_url'] = $firstFrame['url'];
            $data['content'][] = [
                'type' => 'image_url',
                'image_url' => [
                    'url' => $data['first_frame_url'],
                ],
                'role' => 'first_frame',
            ];
        }
        // 处理首帧图片（URL方式）
        elseif (isset($data['first_frame_url']) && !empty($data['first_frame_url'])) {
            $firstFrame = Utils::getRemoteImageInfo($data['first_frame_url'], true);
            if (!$firstFrame) {
                Utils::throwError('1003:首帧图片获取失败');
            }
            $data['content'][] = [
                'type' => 'image_url',
                'image_url' => [
                    'url' => $data['first_frame_url'],
                ],
                'role' => 'first_frame',
            ];
        }

        // 处理尾帧图片（文件上传方式）
        if ($request->hasFile('tail_frame_file')) {
            $tailFrameFile = $request->file('tail_frame_file');
            $tailFrame = $this->processFrameFile($tailFrameFile, 'tail');
            if (!in_array($data['model'], ['doubao-seedance-1-0-pro-fast-251015'])) {
                $data['tail_frame_url'] = $tailFrame['url'];
                $data['content'][] = [
                    'type' => 'image_url',
                    'image_url' => [
                        'url' => $data['tail_frame_url'],
                    ],
                    'role' => 'last_frame',
                ];
            }
        }
        // 处理尾帧图片（URL方式）
        elseif (isset($data['tail_frame_url']) && !empty($data['tail_frame_url'])) {
            $tailFrame = Utils::getRemoteImageInfo($data['tail_frame_url'], true);
            if (!$tailFrame) {
                Utils::throwError('1003:尾帧图片获取失败');
            }
            
            if (!in_array($data['model'], ['doubao-seedance-1-0-pro-fast-251015'])) {
                $data['content'][] = [
                    'type' => 'image_url',
                    'image_url' => [
                        'url' => $data['tail_frame_url'],
                    ],
                    'role' => 'last_frame',
                ];
            }else {
                $data['tail_frame_url'] = '';
            }
        }
        
        // 验证模型参数
        if (!in_array($data['model'], ['doubao-seedance-1-5-pro-251215'])) {
            $data['generate_audio'] = false;
            $data['draft'] = false;
        }
        if (in_array($data['model'], ['doubao-seedance-1-5-pro-251215'])) {
            if ($data['video_duration'] < 4) $data['video_duration'] = 4;
            if (!isset($data['ratio'])) $data['ratio'] = 'adaptive';
        }

        // 验证 content 数组内容
        $this->validateSeedanceContent($data['content']);
    
        $task = $this->aiVideoGenerationService->createSeedanceTask($data);
        return $this->success(['task_id' => $task->id, 'status' => $task->status]);
    }

    public function seedanceCallback(Request $request) {
        $data = $request->all();
        $result = $this->aiVideoGenerationService->seedanceCallback($data);

        return $this->success(['success'=> $result ? 1 : 0]);
    }

    /**
     * 查询 Seedance 1.5 Pro 任务状态
     *
     * @param string $taskId
     * @return JsonResponse
     */
    public function getSeedanceTaskStatus(string $taskId): JsonResponse
    {
        try {
            $task = \App\Models\MpGenerateVideoTask::where('id', $taskId)->first();

            if (!$task) {
                return response()->json([
                    'success' => false,
                    'message' => '任务不存在'
                ], 404);
            }

            $result = $this->aiVideoGenerationService->querySeedanceTaskStatus($task);
            return $this->success($result);
        } catch (\Exception $e) {
            Utils::throwError('1001:'.$e->getMessage());
        }
    }

    /**
     * 验证 Seedance content 内容
     *
     * @param array $content
     * @return void
     */
    private function validateSeedanceContent(array $content): void
    {
        $hasText = false;
        $hasFirstFrame = false;
        $hasLastFrame = false;
        $hasReferenceImage = false;
        $hasDraftTask = false;
        
        foreach ($content as $index => $item) {
            if (!isset($item['type'])) {
                Utils::throwError('1002:content[' . $index . '] 缺少 type 字段');
            }
            
            switch ($item['type']) {
                case 'text':
                    if (!isset($item['text']) || empty($item['text'])) {
                        Utils::throwError('1002:text 类型的 content 必须包含非空的 text 字段');
                    }
                    if (mb_strlen($item['text']) > 1000) {
                        Utils::throwError('1002:文本提示词不能超过1000个字符');
                    }
                    $hasText = true;
                    break;
                    
                case 'image_url':
                    if (!isset($item['image_url']['url']) || empty($item['image_url']['url'])) {
                        Utils::throwError('1002:image_url 类型的 content 必须包含 image_url.url 字段');
                    }
                    
                    $role = $item['role'] ?? null;
                    if ($role === 'first_frame') {
                        $hasFirstFrame = true;
                    } elseif ($role === 'last_frame') {
                        $hasLastFrame = true;
                    } elseif ($role === 'reference_image') {
                        $hasReferenceImage = true;
                    } elseif (empty($role)) {
                        // 默认为首帧
                        $hasFirstFrame = true;
                    }
                    break;
                    
                case 'draft_task':
                    if (!isset($item['draft_task']['id']) || empty($item['draft_task']['id'])) {
                        Utils::throwError('1002:draft_task 类型的 content 必须包含 draft_task.id 字段');
                    }
                    $hasDraftTask = true;
                    break;
                    
                default:
                    Utils::throwError('1002:不支持的 content type: ' . $item['type']);
            }
        }
        
        // 验证组合规则
        if ($hasLastFrame && !$hasFirstFrame) {
            Utils::throwError('1002:使用尾帧时必须同时提供首帧');
        }
        
        if ($hasReferenceImage && ($hasFirstFrame || $hasLastFrame)) {
            Utils::throwError('1002:参考图模式不能与首帧/尾帧模式混用');
        }
        
        if ($hasDraftTask && ($hasText || $hasFirstFrame || $hasLastFrame || $hasReferenceImage)) {
            Utils::throwError('1002:使用样片任务时不能同时提供其他内容');
        }
    }

    /**
     * 创建可灵AI Omni视频生成任务
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function createKelingTask(Request $request): JsonResponse
    {
        $data = $request->all();
        
        // 验证基本参数
        $baseRules = [
            'model' => 'required|string|in:kling-video-o1,kling-v3-omni',
            'prompt' => 'required|max:2500',
            'mode' => 'nullable|in:pro,std',
            'aspect_ratio' => 'nullable|in:16:9,4:3,1:1,3:4,9:16,21:9',
            'video_duration' => 'required|integer|min:3|max:15',
        ];
        
        $baseMessages = [
            'model.required' => '模型参数不能为空',
            'model.in' => '模型只支持 kling-video-o1、kling-v3-omni',
            'prompt.required' => '提示词不能为空',
            'prompt.max' => '提示词不能超过2500个字符',
            'mode.in' => '模式只能是 pro 或 std',
            'aspect_ratio.in' => '宽高比只能是 16:9、4:3、1:1、3:4、9:16、21:9',
            'video_duration.required' => '请填写视频时长',
            'video_duration.integer' => '视频时长必须是整数',
            'video_duration.min' => '视频时长不能少于3秒',
            'video_duration.max' => '视频时长不能超过15秒',
        ];
        
        // 可选参数验证
        $optionalRules = [
            'multi_prompt' => 'nullable|array',
            'multi_prompt.*' => 'string|max:2500',
            'shot_type' => 'nullable|in:customize,single_shot,multi_shot',
            'generate_audio' => 'nullable|boolean',
            'webhook_url' => 'nullable|url',
            'seed' => 'nullable|integer|min:-1|max:4294967295',
            'video_resolution' => 'nullable|in:480P,720P,1080P',
        ];
        
        $optionalMessages = [
            'multi_prompt.array' => '多段提示词必须是数组',
            'multi_prompt.*.string' => '每段提示词必须是字符串',
            'multi_prompt.*.max' => '每段提示词不能超过2500个字符',
            'shot_type.in' => '镜头类型只能是 customize、single_shot、multi_shot',
            'webhook_url.url' => '回调地址格式不正确',
            'seed.integer' => '随机种子必须是整数',
            'seed.min' => '随机种子不能小于-1',
            'seed.max' => '随机种子不能超过4294967295',
            'video_resolution.in' => '分辨率只能是 480P、720P 或 1080P',
        ];

        // 检查是否有首帧URL
        if (isset($data['first_frame_url'])) {
            $optionalRules['first_frame_url'] = 'url';
            $optionalMessages['first_frame_url.url'] = '首帧图片URL格式不正确';
        }
        
        // 检查是否有尾帧URL
        if (isset($data['tail_frame_url'])) {
            $optionalRules['tail_frame_url'] = 'url';
            $optionalMessages['tail_frame_url.url'] = '尾帧图片URL格式不正确';
        }
        
        // 检查是否有首帧文件
        if ($request->hasFile('first_frame_file')) {
            $optionalRules['first_frame_file'] = 'image|mimes:jpeg,png|max:4800';
            $optionalMessages = array_merge($optionalMessages, [
                'first_frame_file.image' => '首帧必须是图片文件',
                'first_frame_file.mimes' => '首帧图片必须是jpeg,png格式',
                'first_frame_file.max' => '首帧图片大小不能超过4.7MB',
            ]);
        }
        
        // 检查是否有尾帧文件
        if ($request->hasFile('tail_frame_file')) {
            $optionalRules['tail_frame_file'] = 'image|mimes:jpeg,png|max:4800';
            $optionalMessages = array_merge($optionalMessages, [
                'tail_frame_file.image' => '尾帧必须是图片文件',
                'tail_frame_file.mimes' => '尾帧图片必须是jpeg,png格式',
                'tail_frame_file.max' => '尾帧图片大小不能超过4.7MB',
            ]);
        }

        if (isset($data['tail_frame_url']) && !isset($data['first_frame_url'])) {
            Utils::throwError('1002:提供尾帧URL时必须提供首帧URL');
        }

        if ($request->hasFile('tail_frame_file') && !$request->has('first_frame_file')) {
            Utils::throwError('1002:提供尾帧文件时必须提供首帧文件');
        }

        $validationRules = array_merge($baseRules, $optionalRules);
        $validationMessages = array_merge($baseMessages, $optionalMessages);

        // 处理图片相关参数
        
        $validator = Validator::make($data, $validationRules, $validationMessages);
        
        if ($validator->fails()) {
            Utils::throwError('1002:'.$validator->errors()->first());
        }

        $firstFrame = null;
        $tailFrame = null;

        $data['image_list'] = [];
        // 处理首帧图片（文件上传方式）
        if ($request->hasFile('first_frame_file')) {
            $firstFrameFile = $request->file('first_frame_file');
            $firstFrame = $this->processFrameFile($firstFrameFile, 'first');
            $data['first_frame_url'] = $firstFrame['url'];
            $data['image_list'][] = [
                'image_url' => $data['first_frame_url'],
                'type' => 'first_frame',
            ];
        }
        // 处理首帧图片（URL方式）
        elseif (isset($data['first_frame_url']) && !empty($data['first_frame_url'])) {
            $firstFrame = Utils::getRemoteImageInfo($data['first_frame_url'], true);
            if (!$firstFrame) {
                Utils::throwError('1003:首帧图片获取失败');
            }
            $data['image_list'][] = [
                'image_url' => $data['first_frame_url'],
                'type' => 'first_frame',
            ];
        }

        // 处理尾帧图片（文件上传方式）
        if ($request->hasFile('tail_frame_file')) {
            $tailFrameFile = $request->file('tail_frame_file');
            $tailFrame = $this->processFrameFile($tailFrameFile, 'tail');
            $data['tail_frame_url'] = $tailFrame['url'];
            $data['image_list'][] = [
                'image_url' => $data['tail_frame_url'],
                'type' => 'end_frame',
            ];
        }
        // 处理尾帧图片（URL方式）
        elseif (isset($data['tail_frame_url']) && !empty($data['tail_frame_url'])) {
            $tailFrame = Utils::getRemoteImageInfo($data['tail_frame_url'], true);
            if (!$tailFrame) {
                Utils::throwError('1003:尾帧图片获取失败');
            }
            $data['image_list'][] = [
                'image_url' => $data['tail_frame_url'],
                'type' => 'end_frame',
            ];
        }

        $task = $this->aiVideoGenerationService->createKelingOmniTask($data);
        return $this->success(['task_id' => $task->id, 'status' => $task->status]);
    }

    /**
     * 查询可灵AI Omni任务状态
     *
     * @param string $taskId
     * @return JsonResponse
     */
    public function getKelingTaskStatus(string $taskId): JsonResponse
    {
        try {
            $task = \App\Models\MpGenerateVideoTask::where('id', $taskId)->first();

            if (!$task) {
                return response()->json([
                    'success' => false,
                    'message' => '任务不存在'
                ], 404);
            }

            $result = $this->aiVideoGenerationService->queryKelingOmniTaskStatus($task);
            return $this->success($result);
        } catch (\Exception $e) {
            Utils::throwError('1001:'.$e->getMessage());
        }
    }

    /**
     * 获取视频任务列表
     *
     * @param Request $request
     * @return mixed
     */
    public function taskList(Request $request)
    {
        $data = $request->all();

        $result = $this->aiVideoGenerationService->getTaskList($data);
        return $this->success($result, [new AIGenerationTransformer(), 'newBuildTaskList']);
    }

    // ==================== 主体管理相关接口 ====================

    /**
     * 创建主体
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function createElement(Request $request): JsonResponse
    {
        try {
            // 验证请求参数
            $validated = $request->validate([
                'element_name' => 'required|string|max:20',
                'element_description' => 'required|string|max:100',
                'reference_type' => 'required|in:image_refer,video_refer',
                'element_image_list' => 'required_if:reference_type,image_refer|array',
                'element_image_list.frontal_image' => 'required_if:reference_type,image_refer|string',
                'element_image_list.refer_images' => 'required_if:reference_type,image_refer|array|min:1|max:3',
                'element_image_list.refer_images.*.image_url' => 'required|string',
                'element_video_list' => 'required_if:reference_type,video_refer|array',
                'element_video_list.refer_videos' => 'required_if:reference_type,video_refer|array|size:1',
                'element_video_list.refer_videos.*.video_url' => 'required|string',
                'element_voice_id' => 'nullable|string',
                'tag_list' => 'nullable|array',
                'tag_list.*.tag_id' => 'required|in:o_101,o_102,o_103,o_104,o_105,o_106,o_107,o_108',
                'callback_url' => 'nullable|url',
                'external_task_id' => 'nullable|string',
            ]);

            // 调用服务层创建主体
            $element = $this->aiVideoGenerationService->createElement($validated);

            return response()->json([
                'code' => 0,
                'message' => '主体创建任务已提交',
                'request_id' => uniqid(),
                'data' => [
                    'task_id' => $element->id,
                    'task_info' => [
                        'external_task_id' => $element->external_task_id,
                    ],
                    'task_status' => $element->task_status,
                    'created_at' => $element->created_at->timestamp * 1000,
                    'updated_at' => $element->updated_at->timestamp * 1000,
                ]
            ]);

        } catch (\Illuminate\Validation\ValidationException $e) {
            return response()->json([
                'code' => 400,
                'message' => '参数验证失败',
                'request_id' => uniqid(),
                'errors' => $e->errors()
            ], 400);
        } catch (\Exception $e) {
            dLog('generate')->error('创建主体失败: ' . $e->getMessage());
            return response()->json([
                'code' => 500,
                'message' => '创建主体失败: ' . $e->getMessage(),
                'request_id' => uniqid(),
            ], 500);
        }
    }

    /**
     * 查询单个主体状态
     *
     * @param string $taskId
     * @param Request $request
     * @return JsonResponse
     */
    public function getElementStatus(string $taskId, Request $request): JsonResponse
    {
        try {
            $externalTaskId = $request->get('external_task_id');
            
            // 先查询本地数据库
            $query = AIElement::where('id', $taskId);
            if ($externalTaskId) {
                $query->orWhere('external_task_id', $externalTaskId);
            }
            
            $localElement = $query->first();
            
            if (!$localElement) {
                return response()->json([
                    'code' => 404,
                    'message' => '主体任务不存在',
                    'request_id' => uniqid(),
                ], 404);
            }

            // 如果任务还在处理中，查询最新状态
            if ($localElement->task_status === AIElement::STATUS_PROCESSING) {
                $apiResult = $this->aiVideoGenerationService->queryElementStatus($taskId, $externalTaskId);
                if ($apiResult['success'] && isset($apiResult['data'])) {
                    $localElement->refresh(); // 重新加载数据
                }
            }

            // 构建响应数据
            $responseData = [
                'task_id' => $localElement->id,
                'task_status' => $localElement->task_status,
                'task_status_msg' => $localElement->task_status_msg,
                'task_info' => [
                    'external_task_id' => $localElement->external_task_id,
                ],
                'created_at' => $localElement->created_at->timestamp * 1000,
                'updated_at' => $localElement->updated_at->timestamp * 1000,
            ];

            // 如果任务成功，添加主体结果信息
            if ($localElement->task_status === AIElement::STATUS_SUCCEED && $localElement->element_id) {
                $responseData['task_result'] = [
                    'elements' => [
                        [
                            'element_id' => $localElement->element_id,
                            'element_name' => $localElement->element_name,
                            'element_description' => $localElement->element_description,
                            'reference_type' => $localElement->reference_type,
                            'element_image_list' => $localElement->element_image_list,
                            'element_video_list' => $localElement->element_video_list,
                            'element_voice_info' => $localElement->element_voice_info,
                            'tag_list' => $localElement->tag_list,
                            'owned_by' => $localElement->owned_by,
                            'status' => $localElement->status,
                        ]
                    ]
                ];
                $responseData['final_unit_deduction'] = $localElement->final_unit_deduction;
            }

            return response()->json([
                'code' => 0,
                'message' => 'success',
                'request_id' => uniqid(),
                'data' => $responseData
            ]);

        } catch (\Exception $e) {
            dLog('generate')->error('查询主体状态失败: ' . $e->getMessage());
            return response()->json([
                'code' => 500,
                'message' => '查询主体状态失败: ' . $e->getMessage(),
                'request_id' => uniqid(),
            ], 500);
        }
    }

    /**
     * 查询所有主体列表（包含自定义和官方）
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function getElementsList(Request $request): JsonResponse
    {
        try {
            $pageNum = (int)$request->get('pageNum', 1);
            $pageSize = (int)$request->get('pageSize', 30);
            $type = $request->get('type', 'all'); // all, custom, official
            
            // 限制分页参数范围
            $pageNum = max(1, min($pageNum, 1000));
            $pageSize = max(1, min($pageSize, 500));

            $customElements = [];
            $officialElements = [];

            // 查询自定义主体
            if (in_array($type, ['all', 'custom'])) {
                $customResult = $this->aiVideoGenerationService->queryCustomElementsList($pageNum, $pageSize);
                if ($customResult['success']) {
                    $customElements = $customResult['data'];
                }
            }

            // 查询官方主体
            if (in_array($type, ['all', 'official'])) {
                $officialResult = $this->aiVideoGenerationService->queryOfficialElementsList($pageNum, $pageSize);
                if ($officialResult['success']) {
                    $officialElements = $officialResult['data'];
                }
            }

            // 合并结果
            $allElements = array_merge($customElements, $officialElements);

            return response()->json([
                'code' => 0,
                'message' => 'success',
                'request_id' => uniqid(),
                'data' => $allElements
            ]);

        } catch (\Exception $e) {
            dLog('generate')->error('查询主体列表失败: ' . $e->getMessage());
            return response()->json([
                'code' => 500,
                'message' => '查询主体列表失败: ' . $e->getMessage(),
                'request_id' => uniqid(),
            ], 500);
        }
    }

    /**
     * 删除自定义主体
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function deleteElement(Request $request): JsonResponse
    {
        try {
            // 验证请求参数
            $validated = $request->validate([
                'element_id' => 'required|string',
            ]);

            // 检查主体是否存在且为自定义主体
            $element = AIElement::where('element_id', $validated['element_id'])->first();
            if (!$element) {
                return response()->json([
                    'code' => 404,
                    'message' => '主体不存在',
                    'request_id' => uniqid(),
                ], 404);
            }

            if ($element->owned_by === 'kling') {
                return response()->json([
                    'code' => 400,
                    'message' => '不能删除官方主体',
                    'request_id' => uniqid(),
                ], 400);
            }

            // 调用服务层删除主体
            $result = $this->aiVideoGenerationService->deleteElement($validated['element_id']);

            if ($result['success']) {
                return response()->json([
                    'code' => 0,
                    'message' => $result['message'],
                    'request_id' => uniqid(),
                    'data' => $result['data']
                ]);
            } else {
                return response()->json([
                    'code' => 500,
                    'message' => $result['message'],
                    'request_id' => uniqid(),
                ], 500);
            }

        } catch (\Illuminate\Validation\ValidationException $e) {
            return response()->json([
                'code' => 400,
                'message' => '参数验证失败',
                'request_id' => uniqid(),
                'errors' => $e->errors()
            ], 400);
        } catch (\Exception $e) {
            dLog('generate')->error('删除主体失败: ' . $e->getMessage());
            return response()->json([
                'code' => 500,
                'message' => '删除主体失败: ' . $e->getMessage(),
                'request_id' => uniqid(),
            ], 500);
        }
    }

    /**
     * 获取本地主体列表（用于内部管理）
     *
     * @param Request $request
     * @return JsonResponse
     */
    public function getLocalElementsList(Request $request): JsonResponse
    {
        try {
            // 构建筛选条件
            $filters = [
                'owned_by' => $request->get('owned_by'),
                'reference_type' => $request->get('reference_type'),
                'status' => $request->get('status'),
                'task_status' => $request->get('task_status'),
                'keyword' => $request->get('keyword'),
                'page_size' => (int)$request->get('page_size', 20),
            ];

            // 移除空值
            $filters = array_filter($filters, function($value) {
                return $value !== null && $value !== '';
            });

            // 调用服务层获取列表
            $elements = $this->aiVideoGenerationService->getLocalElementsList($filters);

            // 转换数据格式
            $data = $elements->map(function ($element) {
                return [
                    'task_id' => $element->id,
                    'external_task_id' => $element->external_task_id,
                    'task_status' => $element->task_status,
                    'task_status_msg' => $element->task_status_msg,
                    'element_id' => $element->element_id,
                    'element_name' => $element->element_name,
                    'element_description' => $element->element_description,
                    'reference_type' => $element->reference_type,
                    'element_image_list' => $element->element_image_list,
                    'element_video_list' => $element->element_video_list,
                    'element_voice_id' => $element->element_voice_id,
                    'element_voice_info' => $element->element_voice_info,
                    'tag_list' => $element->tag_list,
                    'tag_names' => $element->tag_names, // 使用模型的访问器
                    'owned_by' => $element->owned_by,
                    'status' => $element->status,
                    'final_unit_deduction' => $element->final_unit_deduction,
                    'created_at' => $element->created_at->format('Y-m-d H:i:s'),
                    'updated_at' => $element->updated_at->format('Y-m-d H:i:s'),
                ];
            });

            return response()->json([
                'code' => 0,
                'message' => 'success',
                'request_id' => uniqid(),
                'data' => [
                    'data' => $data,
                    'current_page' => $elements->currentPage(),
                    'last_page' => $elements->lastPage(),
                    'per_page' => $elements->perPage(),
                    'total' => $elements->total(),
                ]
            ]);

        } catch (\Exception $e) {
            dLog('generate')->error('获取本地主体列表失败: ' . $e->getMessage());
            return response()->json([
                'code' => 500,
                'message' => '获取本地主体列表失败: ' . $e->getMessage(),
                'request_id' => uniqid(),
            ], 500);
        }
    }
}