"""Pydantic schemas for request/response validation."""
from datetime import datetime
from typing import Any, Optional

from pydantic import BaseModel, Field


# --- Auth ---

class LoginRequest(BaseModel):
    username: str
    password: str


class TokenResponse(BaseModel):
    access_token: str
    token_type: str = "bearer"


# --- System Settings ---

class SystemSettingUpdate(BaseModel):
    key: str
    value: str


class SystemSettingResponse(BaseModel):
    key: str
    value: str
    updated_at: datetime | None = None

    model_config = {"from_attributes": True}


# --- API Tokens ---

class ApiTokenCreate(BaseModel):
    name: str
    permissions: list[str] = Field(default_factory=list)
    expires_in_days: int | None = None


class ApiTokenResponse(BaseModel):
    id: int
    name: str
    token: str | None = None  # Only shown on create
    permissions: list[str] = Field(default_factory=list)
    is_active: bool
    created_at: datetime | None = None
    expires_at: datetime | None = None

    model_config = {"from_attributes": True}


# --- Logs ---

class CardLogResponse(BaseModel):
    id: int
    card_id: str | None = None
    cardholder_id: str | None = None
    action: str
    status: str
    operator: str
    request_data: str | None = None
    response_data: str | None = None
    created_at: datetime | None = None

    model_config = {"from_attributes": True}


class AuditLogResponse(BaseModel):
    id: int
    action: str
    resource_type: str
    resource_id: str | None = None
    operator: str
    ip_address: str | None = None
    details: str | None = None
    created_at: datetime | None = None

    model_config = {"from_attributes": True}


# --- Dashboard ---

class DashboardResponse(BaseModel):
    total_cards: int = 0
    active_cards: int = 0
    today_card_count: int = 0
    daily_card_limit: int = 0
    account_balance: dict[str, Any] | None = None


# --- Cards ---

class CardCreateRequest(BaseModel):
    cardholder_id: str
    card_nickname: str | None = None
    authorization_controls: dict[str, Any] | None = None
    form_factor: str = "VIRTUAL"
    purpose: str | None = None


class CardUpdateRequest(BaseModel):
    card_nickname: str | None = None
    authorization_controls: dict[str, Any] | None = None
    status: str | None = None


# --- Cardholders ---

class CardholderCreateRequest(BaseModel):
    email: str
    type: str = "INDIVIDUAL"
    individual: dict[str, Any] = Field(
        ...,
        description="Individual details: first_name, last_name, date_of_birth, etc.",
    )
    address: dict[str, Any] = Field(
        ...,
        description="Address: street_address, city, state, postcode, country_code.",
    )


# --- Pagination ---

class PaginatedResponse(BaseModel):
    items: list[Any]
    page_num: int = 0
    page_size: int = 20
    total: int | None = None
    has_more: bool = False


# --- External / Third-party ---

class ExternalCardCreateRequest(BaseModel):
    cardholder_id: str
    card_nickname: str | None = None
    authorization_controls: dict[str, Any] | None = None
    form_factor: str = "VIRTUAL"
    purpose: str | None = None


# --- Balance ---

class BalanceResponse(BaseModel):
    available: list[dict[str, Any]] = Field(default_factory=list)