from datetime import datetime
from typing import Any, Optional

from pydantic import BaseModel, ConfigDict, Field


class BaseSchema(BaseModel):
    model_config = ConfigDict(from_attributes=True)


# === Developer ===
class DeveloperOut(BaseSchema):
    id: int
    name: str
    avatar_url: Optional[str] = None
    verified: bool


# === Category ===
class CategoryOut(BaseSchema):
    slug: str
    name: str
    description: Optional[str] = None
    icon: Optional[str] = None


class CategoryListResponse(BaseModel):
    items: list[CategoryOut]


# === Version ===
class VersionInfo(BaseSchema):
    version: str
    release_notes: Optional[str] = None
    min_client_version: Optional[str] = None
    published_at: Optional[datetime] = None
    size_bytes: Optional[int] = None


class ManifestOut(BaseModel):
    pages: Optional[list[dict[str, Any]]] = None
    commands: Optional[list[dict[str, Any]]] = None
    permissions: Optional[list[dict[str, Any]]] = None


# === App ===
class AppSummary(BaseSchema):
    app_uid: str
    name: str
    type: str
    icon_url: Optional[str] = None
    short_description: Optional[str] = None
    categories: list[CategoryOut] = Field(default_factory=list)
    developer: Optional[DeveloperOut] = None
    current_version: Optional[VersionInfo] = None
    download_count: int = 0
    is_featured: bool = False
    publish_time: Optional[datetime] = None


class AppDetail(AppSummary):
    description: Optional[str] = None
    homepage_url: Optional[str] = None
    manifest: Optional[ManifestOut] = None


class AppListResponse(BaseModel):
    items: list[AppSummary]
    total: int
    page: int
    page_size: int


# === Download ===
class DownloadInfo(BaseModel):
    app_uid: str
    version: str
    url: Optional[str] = None
    checksum_sha256: Optional[str] = None
    size_bytes: Optional[int] = None


# === Error ===
class ErrorResponse(BaseModel):
    code: str
    message: str