"""Script (口播文案库) Pydantic schemas — Issue #1795."""

from __future__ import annotations

from datetime import datetime
from typing import List, Optional

from pydantic import BaseModel, Field


class ScriptSegment(BaseModel):
    """单段文案."""

    text: str
    duration: Optional[float] = None


class ScriptResponse(BaseModel):
    id: str
    user_id: str
    title: str
    content: str
    segments: List[ScriptSegment] = Field(default_factory=list)
    tags: List[str] = Field(default_factory=list)
    created_at: datetime
    updated_at: datetime


class ScriptListResponse(BaseModel):
    items: list[ScriptResponse]
    total: int = 0


class CreateScriptRequest(BaseModel):
    title: str = Field(..., min_length=1, max_length=255)
    content: str = ""
    segments: List[ScriptSegment] = Field(default_factory=list)
    tags: List[str] = Field(default_factory=list)


class UpdateScriptRequest(BaseModel):
    title: Optional[str] = Field(None, min_length=1, max_length=255)
    content: Optional[str] = None
    segments: Optional[List[ScriptSegment]] = None
    tags: Optional[List[str]] = None