from pydantic import BaseModel, Field
from datetime import datetime, date
from typing import Optional


# === Services ===
class ServiceOut(BaseModel):
    id: int
    name: str
    slug: str
    duration_min: int
    description: Optional[str] = None
    category: str
    price_cents: Optional[int] = None
    availability_text: Optional[str] = None

    class Config:
        from_attributes = True


class ServiceCreate(BaseModel):
    name: str
    slug: str
    duration_min: int = 15
    description: Optional[str] = None
    category: str = "generale"
    price_cents: Optional[int] = None
    availability_text: Optional[str] = None


# === Providers ===
class ProviderOut(BaseModel):
    id: int
    name: str

    class Config:
        from_attributes = True


class ProviderCreate(BaseModel):
    name: str
    email: Optional[str] = None
    phone: Optional[str] = None
    google_calendar_id: Optional[str] = None


# === Availability ===
class TimeSlot(BaseModel):
    start: str  # "09:00"
    end: str    # "09:30"
    provider_id: int
    provider_name: str


class AvailabilityRule(BaseModel):
    weekday: int  # 0=lun, 6=dom
    start: str    # "09:00"
    end: str      # "13:00"


# === Bookings ===
class BookingCreate(BaseModel):
    service_id: int
    provider_id: int
    start_at: datetime
    customer_name: str
    customer_phone: str
    customer_email: Optional[str] = None
    notes: Optional[str] = None


class BookingOut(BaseModel):
    id: int
    service_id: int
    provider_id: int
    customer_name: str
    customer_phone: str
    customer_email: Optional[str] = None
    start_at: datetime
    end_at: datetime
    status: str
    notes: Optional[str] = None
    created_at: datetime
    receipt_number: Optional[str] = None
    receipt_token: Optional[str] = None

    service: Optional[ServiceOut] = None
    provider: Optional[ProviderOut] = None

    class Config:
        from_attributes = True


class BookingUpdate(BaseModel):
    status: Optional[str] = None
    notes: Optional[str] = None