/** Shared API types mirrored from FRONTEND_GUIDE.md. Money fields are integer Toman. */

export interface City {
  uuid: string;
  name: string;
  slug?: string;
}

export interface Neighborhood {
  uuid: string;
  name: string;
  /** Nested object, confirmed against staging — not a bare uuid string. */
  city: City;
}

export interface StoreCategory {
  uuid: string;
  name: string;
  icon: string | null;
  order: number;
}

export interface StoreListItem {
  uuid: string;
  name: string;
  category: StoreCategory;
  logo: string | null;
  cover_image: string | null;
  /** DRF serializes DecimalField as a string, e.g. "3.76" — confirmed against staging. */
  rating_avg: string;
  rating_count: number;
  min_order_amount: number;
  delivery_fee: number;
  free_delivery_threshold: number | null;
  is_open: boolean;
}


export interface WorkingHours {
  weekday: 0 | 1 | 2 | 3 | 4 | 5 | 6; // 0 = Saturday .. 6 = Friday
  opens_at: string;
  closes_at: string;
  is_closed: boolean;
}

export interface StoreDetail extends StoreListItem {
  description: string;
  address: string;
  phone_number: string;
  working_hours: WorkingHours[];
  accepts_wallet: boolean;
  accepts_online: boolean;
  accepts_cash_on_delivery: boolean;
}

export type UnitType = "gram" | "ml" | "piece";

export interface ProductCategory {
  uuid: string;
  name: string;
  parent: string | null;
}

export interface ProductListItem {
  uuid: string;
  name: string;
  image: string | null;
  price: number;
  unit_type: UnitType;
  unit_value: number;
  is_active: boolean;
  is_out_of_stock: boolean;
}

export interface ProductDetail extends ProductListItem {
  description: string;
  category: ProductCategory;
  store: StoreListItem;
}

export type AddressLabel = "home" | "work" | "other";

export interface Address {
  uuid: string;
  label: AddressLabel;
  title: string;
  full_address: string;
  plaque: string;
  floor: string;
  unit: string;
  recipient_name: string;
  recipient_phone: string;
  city: City;
  neighborhood: Neighborhood | null;
  latitude: number;
  longitude: number;
  is_default: boolean;
  created_at: string;
}

export interface CartItem {
  uuid: string;
  product: ProductListItem;
  quantity: number;
  line_total: number;
}

export interface CartGroup {
  store: StoreListItem;
  items: CartItem[];
  items_subtotal: number;
  delivery_fee: number;
  total: number;
  meets_minimum_order: boolean;
}

export interface Cart {
  groups: CartGroup[];
  grand_total: number;
}

export type DeliveryType = "express" | "scheduled";
export type PaymentMethod = "wallet" | "online" | "cash_on_delivery";
export type PaymentStatus = "pending" | "paid" | "failed";
export type OrderStatus =
  | "placed"
  | "preparing"
  | "ready_to_ship"
  | "handed_to_courier"
  | "delivered"
  | "cancelled";

export interface OrderItem {
  uuid: string;
  product: string;
  product_name_snapshot: string;
  unit_price_snapshot: number;
  quantity: number;
  line_total: number;
}

export interface OrderStatusLog {
  from_status: string;
  to_status: string;
  note: string;
  created_at: string;
}

export interface Order {
  uuid: string;
  store: StoreListItem;
  status: OrderStatus;
  items: OrderItem[];
  items_subtotal: number;
  delivery_fee: number;
  commission_amount: number;
  seller_payout_amount: number;
  total_amount: number;
  cancel_reason: string;
  courier_name: string;
  courier_phone: string;
  placed_at: string;
  delivered_at: string | null;
  status_logs: OrderStatusLog[];
  is_cancellable: boolean;
}

export interface OrderGroup {
  uuid: string;
  recipient_name: string;
  recipient_phone: string;
  full_address: string;
  delivery_type: DeliveryType;
  scheduled_at: string | null;
  payment_method: PaymentMethod;
  payment_status: PaymentStatus;
  notes: string;
  total_amount: number;
  orders: Order[];
  created_at: string;
  /** `feature/payment` only. */
  payment?: { method: PaymentMethod; status: string; payment_url?: string };
}