"""
SNS API Schemas

Instagram 업로드 관련 Pydantic 스키마를 정의합니다.
"""
from datetime import datetime
from typing import Optional


from pydantic import BaseModel, ConfigDict, Field


class InstagramUploadRequest(BaseModel):
    """Instagram 업로드 요청 스키마

    Usage:
        POST /sns/instagram/upload/{task_id}
        Instagram에 비디오를 업로드합니다.

    Example Request:
        {
            "caption": "Test video from Instagram POC #test",
            "share_to_feed": true
        }
    """

    model_config = ConfigDict(
        json_schema_extra={
            "example": {
                "caption": "Test video from Instagram POC #test",
                "share_to_feed": True,
            }
        }
    )

    caption: str = Field(
        default="",
        description="게시물 캡션",
        max_length=2200,
    )
    share_to_feed: bool = Field(
        default=True,
        description="피드에 공유 여부",
    )


class InstagramUploadResponse(BaseModel):
    """Instagram 업로드 응답 스키마

    Usage:
        POST /sns/instagram/upload/{task_id}
        Instagram 업로드 작업의 결과를 반환합니다.

    Example Response (성공):
        {
            "task_id": "0694b716-dbff-7219-8000-d08cb5fce431",
            "state": "completed",
            "message": "Instagram 업로드 완료",
            "media_id": "17841405822304914",
            "permalink": "https://www.instagram.com/p/ABC123/",
            "error": null
        }
    """

    model_config = ConfigDict(
        json_schema_extra={
            "example": {
                "task_id": "0694b716-dbff-7219-8000-d08cb5fce431",
                "state": "completed",
                "message": "Instagram 업로드 완료",
                "media_id": "17841405822304914",
                "permalink": "https://www.instagram.com/p/ABC123/",
                "error": None,
            }
        }
    )

    task_id: str = Field(..., description="작업 고유 식별자")
    state: str = Field(..., description="업로드 상태 (pending, processing, completed, failed)")
    message: str = Field(..., description="상태 메시지")
    media_id: Optional[str] = Field(default=None, description="Instagram 미디어 ID (성공 시)")
    permalink: Optional[str] = Field(default=None, description="Instagram 게시물 URL (성공 시)")
    error: Optional[str] = Field(default=None, description="에러 메시지 (실패 시)")


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 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