export interface Category {
  id: number;
  name: string;
  description: string | null;
  created_at: string;
}

export interface ComponentSpecs {
  // All categories
  manufacturer_id?: string;
  // Resistors & Capacitors
  value?: string;
  power?: string;
  voltage?: string;
  tolerance?: string;
  // LEDs
  color?: string;
  // Connectors
  no_of_pins?: string;
  no_of_rows?: string;
  connector_type?: string; // "Female" | "Male"
}

export interface Component {
  id: number;
  part_number: string;
  name: string;
  description: string | null;
  category_id: number | null;
  category_name?: string;
  manufacturer: string | null;
  package_type: string | null;
  unit_price: number;
  stock_quantity: number;
  min_stock_level: number;
  datasheet_url: string | null;
  supplier: string | null;
  supplier_part_number: string | null;
  shelf_location: string | null;
  is_internal: boolean;
  customer_supplied: boolean;
  customer_id: number | null;
  customer_name?: string;
  specs: ComponentSpecs;
  created_at: string;
  updated_at: string;
}

export interface Product {
  id: number;
  name: string;
  sku: string;
  description: string | null;
  version: string;
  status: string;
  created_at: string;
  updated_at: string;
  bom_count?: number;
  total_cost?: number;
}

export interface BomItem {
  id: number;
  product_id: number;
  component_id: number;
  quantity: number;
  reference_designator: string | null;
  notes: string | null;
  created_at: string;
  component_name?: string;
  part_number?: string;
  unit_price?: number;
  stock_quantity?: number;
  category_name?: string;
  line_cost?: number;
}

export interface StockTransaction {
  id: number;
  component_id: number;
  transaction_type: "purchase" | "adjustment" | "return" | "consumption";
  quantity: number;
  unit_cost: number | null;
  total_cost: number | null;
  supplier: string | null;
  supplier_order_ref: string | null;
  notes: string | null;
  created_at: string;
  component_name?: string;
  part_number?: string;
  category_name?: string;
}

export interface Customer {
  id: number;
  name: string;
  code: string;
  email: string | null;
  phone: string | null;
  address: string | null;
  contact_person: string | null;
  notes: string | null;
  created_at: string;
  updated_at: string;
  order_count?: number;
  total_revenue?: number;
}

export interface PurchaseOrder {
  id: number;
  customer_id: number;
  po_number: string;
  customer_ref: string | null;
  status: "draft" | "confirmed" | "in_production" | "shipped" | "completed" | "cancelled";
  order_date: string;
  due_date: string | null;
  notes: string | null;
  created_at: string;
  updated_at: string;
  customer_name?: string;
  customer_code?: string;
  item_count?: number;
  total_value?: number;
  total_ordered?: number;
  total_shipped?: number;
}

export interface PurchaseOrderItem {
  id: number;
  purchase_order_id: number;
  product_id: number;
  quantity: number;
  unit_price: number;
  notes: string | null;
  created_at: string;
  product_name?: string;
  product_sku?: string;
  line_total?: number;
  shipped_quantity?: number;
  remaining_quantity?: number;
}

export interface PackingList {
  id: number;
  purchase_order_id: number;
  po_item_id: number;
  packing_number: string;
  quantity: number;
  notes: string | null;
  created_at: string;
  po_number?: string;
  customer_name?: string;
  customer_code?: string;
  customer_email?: string;
  customer_phone?: string;
  customer_address?: string;
  product_name?: string;
  product_sku?: string;
  serial_count?: number;
}

export interface PackingListSerial {
  id: number;
  packing_list_id: number;
  serial_number: string;
  created_at: string;
}

export interface Supplier {
  id: number;
  name: string;
  code: string;
  email: string | null;
  phone: string | null;
  address: string | null;
  contact_person: string | null;
  country: string;
  currency: string;
  notes: string | null;
  created_at: string;
  updated_at: string;
}

export interface SupplierPackingList {
  id: number;
  supplier_id: number;
  packing_number: string;
  notes: string | null;
  created_at: string;
  supplier_name?: string;
  supplier_code?: string;
  supplier_email?: string | null;
  supplier_phone?: string | null;
  supplier_address?: string | null;
  supplier_contact?: string | null;
  item_count?: number;
  total_quantity?: number;
}

export interface SupplierPackingListItem {
  id: number;
  supplier_packing_list_id: number;
  component_id: number;
  quantity: number;
  created_at: string;
  part_number?: string;
  component_name?: string;
  used_in_products?: string;
}