"""对口型 API Schema 定义 — #1796."""

from __future__ import annotations

from datetime import datetime
from typing import Optional

from pydantic import BaseModel, Field, field_validator


class LipsyncJobResponse(BaseModel):
    """对口型任务响应."""

    id: str
    user_id: str
    project_id: str
    video_url: str
    audio_url: str
    enable_video_loop: bool
    mediakit_task_id: str
    status: str
    output_video_url: str
    output_duration: float
    error_message: str
    error_code: str
    submitted_at: Optional[datetime] = None
    completed_at: Optional[datetime] = None
    created_at: datetime
    updated_at: datetime

    class Config:
        from_attributes = True


class CreateLipsyncJobRequest(BaseModel):
    """创建对口型任务请求."""

    video_url: str = Field(..., description="人物视频 URL（MP4，≤30min，单人真人）")
    audio_url: str = Field(..., description="驱动音频 URL（mp3/aac/wav/m4a/flac）")
    enable_video_loop: bool = Field(False, description="音频长于视频时是否循环画面")
    project_id: str = Field("", description="项目 ID（可选）")

    @field_validator("video_url")
    @classmethod
    def validate_video_url(cls, v: str) -> str:
        v = v.strip()
        if not v:
            raise ValueError("video_url 不能为空")
        if not v.startswith(("http://", "https://")):
            raise ValueError("video_url 必须是 HTTP/HTTPS URL")
        # 仅支持 MP4
        lower = v.lower().split("?")[0]
        if not lower.endswith(".mp4"):
            raise ValueError("video_url 仅支持 MP4 格式")
        return v

    @field_validator("audio_url")
    @classmethod
    def validate_audio_url(cls, v: str) -> str:
        v = v.strip()
        if not v:
            raise ValueError("audio_url 不能为空")
        if not v.startswith(("http://", "https://")):
            raise ValueError("audio_url 必须是 HTTP/HTTPS URL")
        # 支持的音频格式
        lower = v.lower().split("?")[0]
        allowed_exts = (".mp3", ".aac", ".wav", ".m4a", ".flac")
        if not any(lower.endswith(ext) for ext in allowed_exts):
            raise ValueError(f"audio_url 格式不支持，仅支持: {', '.join(allowed_exts)}")
        return v