"""
Instagram Graph API Pydantic 모델

API 응답 데이터를 위한 Pydantic 모델 정의입니다.
"""

from datetime import datetime
from typing import Any, Optional

from pydantic import BaseModel, Field


class Media(BaseModel):
    """Instagram 미디어 정보"""

    id: str
    media_type: Optional[str] = None
    media_url: Optional[str] = None
    thumbnail_url: Optional[str] = None
    caption: Optional[str] = None
    timestamp: Optional[datetime] = None
    permalink: Optional[str] = None
    like_count: int = 0
    comments_count: int = 0
    children: Optional[list["Media"]] = None


class MediaList(BaseModel):
    """미디어 목록 응답"""

    data: list[Media] = Field(default_factory=list)
    paging: Optional[dict[str, Any]] = None

    @property
    def next_cursor(self) -> Optional[str]:
        """다음 페이지 커서"""
        if self.paging and "cursors" in self.paging:
            return self.paging["cursors"].get("after")
        return None


class MediaContainer(BaseModel):
    """미디어 컨테이너 상태"""

    id: str
    status_code: Optional[str] = None
    status: Optional[str] = None

    @property
    def is_finished(self) -> bool:
        return self.status_code == "FINISHED"

    @property
    def is_error(self) -> bool:
        return self.status_code == "ERROR"

    @property
    def is_in_progress(self) -> bool:
        return self.status_code == "IN_PROGRESS"


class APIError(BaseModel):
    """API 에러 응답"""

    message: str
    type: Optional[str] = None
    code: Optional[int] = None
    error_subcode: Optional[int] = None
    fbtrace_id: Optional[str] = None


class ErrorResponse(BaseModel):
    """에러 응답 래퍼"""

    error: APIError