# -*- coding:utf-8 -*-
# POST /api/submit - 提交KTV视频合成任务

import json
import uuid
from ahserver.serverenv import ServerEnv

method = request.method

if method == 'POST':
    # 必需参数
    video_clips = params_kw.get('video_clips', [])
    audio_path = params_kw.get('audio_path', '')
    subtitle_path = params_kw.get('subtitle_path', '')
    
    if not video_clips or not isinstance(video_clips, list):
        return json.dumps({'error': 'video_clips (list) is required'}, ensure_ascii=False)
    if not audio_path:
        return json.dumps({'error': 'audio_path is required'}, ensure_ascii=False)
    if not subtitle_path:
        return json.dumps({'error': 'subtitle_path (ASS file) is required'}, ensure_ascii=False)

    task_id = params_kw.get('task_id', str(uuid.uuid4()).replace("-", "")[:12])
    output_format = params_kw.get('output_format', 'mp4')
    resolution = params_kw.get('resolution', '1920x1080')

    payload = {
        'task_type': 'synthesize',
        'task_id': task_id,
        'video_clips': video_clips,
        'audio_path': audio_path,
        'subtitle_path': subtitle_path,
        'output_format': output_format,
        'resolution': resolution
    }

    env = ServerEnv()
    longtasks = env.longtasks
    if longtasks is None:
        return json.dumps({'error': 'service not ready'}, ensure_ascii=False)

    result = await longtasks.submit_task(payload)
    real_task_id = result.get('task_id', str(result)) if isinstance(result, dict) else str(result)

    return json.dumps({
        'task_id': real_task_id,
        'status': 'queued',
        'video_clips_count': len(video_clips),
        'audio_path': audio_path,
        'subtitle_path': subtitle_path,
        'message': 'task submitted',
        'check_url': f'/api/task?task_id={real_task_id}'
    }, ensure_ascii=False)

else:
    return json.dumps({
        'usage': 'POST with JSON body',
        'params': {
            'video_clips': 'list (required, server paths to video segments)',
            'audio_path': 'string (required, server path to audio file)',
            'subtitle_path': 'string (required, server path to ASS subtitle file)',
            'output_format': 'string (default mp4)',
            'resolution': 'string (default 1920x1080)',
            'task_id': 'string (optional, auto-generated)',
        }
    }, ensure_ascii=False)