from dataclasses import dataclass, field
from typing import Optional, List, Dict, Any

@dataclass
class SourceChannel:
    id: Optional[int]
    channel_id: int
    username: Optional[str]
    title: Optional[str]
    is_active: bool = True
    created_at: Optional[str] = None

@dataclass
class TargetChannel:
    id: Optional[int]
    channel_id: int
    title: Optional[str]
    username: Optional[str]
    post_interval_min: int = 30
    personality: str = ""
    custom_footer: str = ""
    last_post_time: Optional[str] = None
    is_active: bool = True
    created_at: Optional[str] = None

@dataclass
class Post:
    id: Optional[int]
    source_channel_id: int
    source_message_id: int
    raw_text: Optional[str]
    media_path: Optional[str] = None
    media_type: Optional[str] = None
    content_hash: Optional[str] = None
    tags: List[str] = field(default_factory=list)
    is_duplicate: bool = False
    duplicate_of_id: Optional[int] = None
    similarity_reason: Optional[str] = None
    subject: Optional[str] = None
    ai_text: Optional[str] = None
    suggested_target_id: Optional[int] = None
    target_channel_id: Optional[int] = None
    status: str = "pending_review"  # pending_review, published, rejected
    published_to: List[Dict[str, Any]] = field(default_factory=list)
    review_message_id: Optional[int] = None
    scheduled_at: Optional[str] = None
    published_at: Optional[str] = None
    created_at: Optional[str] = None

@dataclass
class Setting:
    key: str
    value: str
    description: Optional[str] = None