<?php

namespace App\Http\Controllers\Anime;

use App\Transformer\Anime\AnimeTransformer;
use App\Facade\Site;
use App\Consts\ErrorConst;
use App\Exceptions\ApiException;
use App\Libs\ApiResponse;
use App\Libs\Utils;
use App\Models\MpGenerateVideoTask;
use App\Services\AIGeneration\AIImageGenerationService;
use App\Services\AIGeneration\AIVideoGenerationService;
use App\Services\Anime\AnimeService;
use Illuminate\Http\Request;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Redis;
use Illuminate\Support\Facades\Validator;

class AnimeController extends BaseController
{
    use ApiResponse;
    protected $AnimeService;
    protected $AIImageGenerationService;
    protected $AIVideoGenerationService;

    public function __construct(
        AnimeService $AnimeService,
        AIImageGenerationService $AIImageGenerationService,
        AIVideoGenerationService $AIVideoGenerationService
    ) {
        $this->AnimeService = $AnimeService;
        $this->AIImageGenerationService = $AIImageGenerationService;
        $this->AIVideoGenerationService = $AIVideoGenerationService;
    }

    public function textModel() {
        $models = [
            [
                'model'     => 'v3',
                'name'      => 'DeepSeek 推理',
            ],
            [
                'model'     => 'r1',
                'name'      => 'DeepSeek 思考'
            ],
        ];
        return $this->success($models);
    }


    // 批量生成主体图片
    public function batchSetRoleImg(Request $request) {
        // 忽略所有超时限制
        set_time_limit(0);
        ini_set('max_execution_time', '0');

        $data = $request->all();
        $result = $this->AnimeService->batchSetRoleImg($data);
        return $this->success($result);
    }

    // 批量生成场景图片
    public function batchSetSceneImg(Request $request) {
        // 忽略所有超时限制
        set_time_limit(0);
        ini_set('max_execution_time', '0');

        $data = $request->all();
        $result = $this->AnimeService->batchSetSceneImg($data);
        return $this->success($result);
    }

    // 编辑动漫
    public function editAnime(Request $request) {
        $data = $request->all();
        $result = $this->AnimeService->editAnime($data);
        return $this->success(['success'=>$result ? 1 : 0]);
    }

    // 动漫对话列表
    public function chatList(Request $request) {
        $data = $request->all();

        $result = $this->AnimeService->chatList($data);
        return $this->success($result, [new AnimeTransformer(), 'newBuildChatList']);
    }

    // 动漫对话历史记录
    public function chatHistory(Request $request) {
        $data = $request->all();

        $result = $this->AnimeService->chatHistory($data);
        return $this->success($result);
    }

    // 动漫大纲
    public function animeDetail(Request $request) {
        $data = $request->all();

        $result = $this->AnimeService->animeDetail($data);
        return $this->success($result);
    }

    // 动漫剧集
    public function episodeInfo(Request $request) {
        $data = $request->all();

        $result = $this->AnimeService->episodeInfo($data);
        return $this->success($result);
    }

    // 复制剧集副本
    public function copyEpisodeVersion(Request $request) {
        $data = $request->all();

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

    // 剧集副本列表
    public function episodeVersions(Request $request) {
        $data = $request->all();

        $result = $this->AnimeService->episodeVersions($data);
        return $this->success($result);
    }

    // 绑定剧集副本
    public function bindEpisodeVersion(Request $request) {
        $data = $request->all();

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

    // 对话改图
    public function chatChangeImg(Request $request) {
        $data = $request->all();

        $result = $this->AnimeService->chatChangeImg($data);
        return $this->success(['img_url' => $result]);
    }

    // 一键生成分镜
    public function batchSetSegmentPics(Request $request) {
        // 忽略所有超时限制
        set_time_limit(0);
        ini_set('max_execution_time', '0');

        $data = $request->all();
        $result = $this->AnimeService->batchSetSegmentPics($data);
        return $this->success($result);
    }

    // 重新生成分镜
    public function reGenerateSegment(Request $request) {
        // 忽略所有超时限制
        set_time_limit(0);
        ini_set('max_execution_time', '0');

        $data = $request->all();
        $result = $this->AnimeService->reGenerateSegment($data);
        return $this->success(['img_url'=>$result]);
    }

    // 添加分镜
    public function addSegment(Request $request) {
        // 忽略所有超时限制
        set_time_limit(0);
        ini_set('max_execution_time', '0');

        $data = $request->all();
        $result = $this->AnimeService->addSegment($data);
        return $this->success($result);
    }

    // 复制分镜
    public function copySegment(Request $request) {
        $data = $request->all();
        $result = $this->AnimeService->copySegment($data);
        return $this->success(['success'=>$result ? 1: 0]);
    }

    // 移动分镜
    public function moveSegment(Request $request) {
        $data = $request->all();
        $result = $this->AnimeService->moveSegment($data);
        return $this->success(['success'=>$result ? 1: 0]);
    }

    // 删除分镜
    public function delSegment(Request $request) {
        $data = $request->all();
        $result = $this->AnimeService->delSegment($data);
        return $this->success(['success'=>$result ? 1: 0]);
    }

    // 分镜历史图片|视频
    public function segmentHistory(Request $request) {
        $data = $request->all();
        $result = $this->AnimeService->segmentHistory($data);
        return $this->success($result);
    }

    public function createSegmentVideoTask(Request $request) {
        $data = $request->all();
        
        // 验证参数
        $validator = Validator::make($data, [
            'segment_id' => 'required|string',
            'tail_frame' => 'nullable|string|max:500',
        ], [
            'segment_id.required' => '分镜ID不能为空',
            'tail_frame.max' => '尾帧描述不能超过500个字符',
        ]);
        
        if ($validator->fails()) {
            Utils::throwError('1002:' . $validator->errors()->first());
        }
        
        // 创建视频生成任务
        $result = $this->AnimeService->createSegmentVideoTask($data);
        $taskId = $result['task_id'];
        
        // 设置 SSE 响应头
        return response()->stream(function () use ($taskId, $result) {
            // 设置 SSE 响应头
            echo "data: " . json_encode([
                'type' => 'task_created',
                'data' => $result
            ]) . "\n\n";
            ob_flush();
            flush();
            
            $startTime = time();
            $maxDuration = 300; // 5分钟超时
            $checkInterval = 5; // 每5秒检查一次
            
            while (time() - $startTime < $maxDuration) {
                try {
                    // 查询任务状态
                    $task = \App\Models\MpGenerateVideoTask::find($taskId);
                    if (!$task) {
                        echo "data: " . json_encode([
                            'type' => 'error',
                            'message' => '任务不存在'
                        ]) . "\n\n";
                        ob_flush();
                        flush();
                        break;
                    }
                    
                    // 如果任务还在处理中，查询最新状态
                    if ($task->status === 'processing') {
                        $statusResult = $this->AIVideoGenerationService->querySeedanceTaskStatus($task);
                        if (isset($statusResult['status'])) {
                            // 更新任务状态
                            $task->update([
                                'status' => $statusResult['status'],
                                'result_url' => $statusResult['result_url'] ?? null,
                                'last_frame_url' => $statusResult['last_frame_url'] ?? '',
                                'error_message' => $statusResult['error_message'] ?? null,
                                'completed_at' => in_array($statusResult['status'], [
                                    'success',
                                    'failed'
                                ]) ? now() : null
                            ]);
                            
                            // 如果任务成功，更新分镜表
                            if ($statusResult['status'] === 'success' && isset($statusResult['result_url'])) {
                                DB::table('mp_episode_segments')
                                    ->where('video_task_id', $taskId)
                                    ->update([
                                        'video_url' => $statusResult['result_url'],
                                        'video_task_status' => '已完成',
                                        'last_frame_url' => $statusResult['last_frame_url'] ?? '',
                                        'updated_at' => date('Y-m-d H:i:s')
                                    ]);
                            } elseif ($statusResult['status'] === 'failed') {
                                DB::table('mp_episode_segments')
                                    ->where('video_task_id', $taskId)
                                    ->update([
                                        'video_task_status' => '失败',
                                        'updated_at' => date('Y-m-d H:i:s')
                                    ]);
                            }
                        }
                    }
                    
                    // 发送当前状态
                    echo "data: " . json_encode([
                        'type' => 'status_update',
                        'data' => [
                            'task_id' => $task->id,
                            'status' => $task->status,
                            'result_url' => $task->result_url,
                            'error_message' => $task->error_message,
                            'progress' => $this->getTaskProgress($task->status),
                            'elapsed_time' => time() - $startTime
                        ]
                    ]) . "\n\n";
                    ob_flush();
                    flush();
                    
                    // 如果任务完成（成功或失败），结束连接
                    if (in_array($task->status, [
                        'success',
                        'failed'
                    ])) {
                        echo "data: " . json_encode([
                            'type' => 'completed',
                            'data' => [
                                'task_id' => $task->id,
                                'status' => $task->status,
                                'result_url' => $task->result_url,
                                'video_url' => $task->result_url, // 兼容字段
                                'error_message' => $task->error_message
                            ]
                        ]) . "\n\n";
                        ob_flush();
                        flush();
                        break;
                    }
                    
                    sleep($checkInterval);
                    
                } catch (\Exception $e) {
                    echo "data: " . json_encode([
                        'type' => 'error',
                        'message' => '查询任务状态失败: ' . $e->getMessage()
                    ]) . "\n\n";
                    ob_flush();
                    flush();
                    sleep($checkInterval);
                }
            }
            
            // 超时处理
            if (time() - $startTime >= $maxDuration) {
                echo "data: " . json_encode([
                    'type' => 'timeout',
                    'message' => '任务执行超时，请稍后查询任务状态',
                    'data' => [
                        'task_id' => $taskId
                    ]
                ]) . "\n\n";
                ob_flush();
                flush();
            }
            
        }, 200, [
            'Content-Type' => 'text/event-stream',
            'Cache-Control' => 'no-cache',
            'Connection' => 'keep-alive',
            'X-Accel-Buffering' => 'no', // 禁用 Nginx 缓冲
        ]);
    }
    
    /**
     * 获取任务进度百分比
     */
    private function getTaskProgress($status) {
        switch ($status) {
            case \App\Models\MpGenerateVideoTask::STATUS_PENDING:
                return 10;
            case \App\Models\MpGenerateVideoTask::STATUS_PROCESSING:
                return 50;
            case \App\Models\MpGenerateVideoTask::STATUS_SUCCESS:
                return 100;
            case \App\Models\MpGenerateVideoTask::STATUS_FAILED:
                return 0;
            default:
                return 0;
        }
    }

    // public function scriptList(Request $request) {
    //     $data = $request->all();
    //     $result = $this->AnimeService->scriptList($data);
    //     return $this->success($result, [new AnimeTransformer(), 'newBuildScriptList']);
    // }
}