from typing import List, Optional

from pydantic import BaseModel, Field


class UploadResponse(BaseModel):
    file_id: str
    original_name: str
    file_url: str


class TaskCreateRequest(BaseModel):
    file_id: str = Field(..., description="Uploaded file identifier")
    clip_seconds: Optional[int] = Field(default=8, ge=1, le=60)
    transcode_mp4: bool = True
    generate_cover: bool = True
    generate_hls: bool = True
    watermark_text: Optional[str] = Field(default="VPlatform Demo", max_length=32)


class TaskResult(BaseModel):
    mp4_url: Optional[str] = None
    cover_url: Optional[str] = None
    hls_url: Optional[str] = None
    log: List[str] = Field(default_factory=list)


class TaskResponse(BaseModel):
    task_id: str
    status: str
    file_id: str
    created_at: str
    updated_at: str
    options: TaskCreateRequest
    result: TaskResult
    error: Optional[str] = None