"""Client schemas for API serialization."""

from datetime import datetime
from typing import Optional
from uuid import UUID

from pydantic import BaseModel, ConfigDict, EmailStr, Field


class ClientCreate(BaseModel):
    """Schema for creating a new client."""

    name: str = Field(..., min_length=1, max_length=255, description="Client/company name")
    contact_email: Optional[EmailStr] = Field(None, description="Primary contact email")
    billing_plan: str = Field("free", description="Billing plan")


class ClientUpdate(BaseModel):
    """Schema for updating a client."""

    name: Optional[str] = Field(None, min_length=1, max_length=255)
    contact_email: Optional[EmailStr] = None
    billing_plan: Optional[str] = None
    status: Optional[str] = Field(None, pattern="^(active|suspended|archived)$")


class ClientResponse(BaseModel):
    """Schema for client API responses."""

    model_config = ConfigDict(from_attributes=True)

    id: UUID
    name: str
    contact_email: Optional[str]
    billing_plan: str
    status: str
    created_at: datetime
    updated_at: datetime