import uuid
from datetime import datetime
from typing import Literal

from pydantic import BaseModel, EmailStr, field_validator


class UserRegister(BaseModel):
    email: EmailStr
    password: str
    full_name: str
    phone: str | None = None
    # Role requested at registration: 'member' or 'organizer'
    requested_role: Literal["member", "organizer"] = "member"
    # Organizer-only fields
    organization_name: str | None = None
    instagram_handle: str | None = None

    @field_validator("organization_name")
    @classmethod
    def org_name_required_for_organizer(cls, v, info):
        if info.data.get("requested_role") == "organizer" and not v:
            raise ValueError("Organization name is required for organizer registration")
        return v


class UserLogin(BaseModel):
    email: EmailStr
    password: str


class UserOut(BaseModel):
    model_config = {"from_attributes": True}

    id: uuid.UUID
    email: str
    full_name: str
    phone: str | None
    role: str
    status: str
    organization_name: str | None
    instagram_handle: str | None
    expo_push_token: str | None
    created_at: datetime


class UserUpdate(BaseModel):
    full_name: str | None = None
    phone: str | None = None
    organization_name: str | None = None
    instagram_handle: str | None = None
    expo_push_token: str | None = None