from pydantic import BaseModel
from typing import Optional, List


class AppMetadata(BaseModel):
    """Represents a single app in the repository."""
    id: str
    package_name: str
    version_name: str
    version_code: str
    name: str
    description: str = ""
    icon: Optional[str] = None
    size: int = 0
    screenshots: List[str] = []
    min_sdk: Optional[str] = None
    target_sdk: Optional[str] = None
    permissions: List[str] = []


class AppListResponse(BaseModel):
    """Response for listing apps."""
    apps: List[AppMetadata]
    total: int


class UpdateCheckRequest(BaseModel):
    """Request to check for updates."""
    package_name: str
    current_version_code: str


class UpdateCheckResponse(BaseModel):
    """Response for update check."""
    has_update: bool
    app: Optional[AppMetadata] = None
    current_version_code: str
    latest_version_code: Optional[str] = None