"""
Pydantic schemas for WhatsApp messages.
"""
from datetime import datetime

from pydantic import BaseModel, Field


class MessageBase(BaseModel):
    """
    Base schema for WhatsApp messages.
    """
    sender_phone: str = Field(..., description="Phone number of the message sender")
    sender_name: str = Field(..., description="Name of the message sender")
    message_body: str = Field(..., description="Content of the message")


class MessageCreate(MessageBase):
    """
    Schema for creating a new message.
    """
    pass


class Message(MessageBase):
    """
    Schema for a message.
    """
    id: int
    timestamp: datetime
    analyzed: bool
    last_analyzed_at: datetime | None = None

    class Config:
        """
        Pydantic config for the Message schema.
        """
        from_attributes = True


# WhatsApp webhook specific schemas
class WhatsAppTextMessage(BaseModel):
    """
    Schema for a WhatsApp text message.
    """
    from_: str = Field(..., alias="from")
    id: str
    timestamp: str
    text: dict
    type: str


class WhatsAppValue(BaseModel):
    """
    Schema for WhatsApp webhook value object.
    """
    messaging_product: str
    metadata: dict
    contacts: list
    messages: list[WhatsAppTextMessage]


class WhatsAppWebhookEntry(BaseModel):
    """
    Schema for a WhatsApp webhook entry.
    """
    id: str
    changes: list[dict]


class WhatsAppWebhook(BaseModel):
    """
    Schema for a WhatsApp webhook.
    """
    object: str
    entry: list[WhatsAppWebhookEntry]