from datetime import datetime
from typing import TYPE_CHECKING

from core_shared import JSONValue
from pydantic import BaseModel, Field

if TYPE_CHECKING:
    from app.db.models import AppDefinition, AppVersion


class AppCreateRequest(BaseModel):
    code: str
    name: str
    description: str | None = None
    owner_user_id: str | None = None
    settings_json: dict[str, JSONValue] = Field(default_factory=dict)


class AppResponse(BaseModel):
    id: str
    code: str
    name: str
    description: str | None = None
    owner_user_id: str | None = None
    settings_json: dict[str, JSONValue] | None = None
    created_time: datetime

    @classmethod
    def from_entity(cls, entity: "AppDefinition") -> "AppResponse":
        return cls.model_validate(entity, from_attributes=True)


class AppVersionCreateRequest(BaseModel):
    app_id: str
    workflow_version_id: str
    status: str = "draft"
    published_by: str | None = None
    changelog: str | None = None


class AppVersionResponse(BaseModel):
    id: str
    app_id: str
    version_no: int
    workflow_version_id: str
    status: str
    published_time: datetime | None = None
    published_by: str | None = None
    changelog: str | None = None
    created_time: datetime

    @classmethod
    def from_entity(cls, entity: "AppVersion") -> "AppVersionResponse":
        return cls.model_validate(entity, from_attributes=True)