Data Models¶

interface SubSKUType {
  id: string;             // e.g. "sst-01"
  name: string;           // e.g. "Sub-SKU Type 1"
  code: string;           // e.g. "WGT-A-T1"  (monospace display)
  available: number;      // units currently available for ordering
  reserved: number;       // units reserved (not orderable)
  maxQty: number;         // maximum quantity an operator can order in one request
  active: boolean;        // whether this sub-SKU is active in the system
  inPreProcessing: boolean; // true = manufacture complete but pre-processing not yet done.
                            // Cannot be ordered even if available > 0.
}

interface MaterialSKU {
  id: string;
  name: string;           // e.g. "Widget A"
  code: string;           // e.g. "WGT-A"
  subSkuTypes: SubSKUType[];
}

type ContainerType = 'trolley' | 'pallet' | 'bin';

interface ContainerSubtype {
  id: string;           // e.g. "cst-01"
  name: string;         // e.g. "Heavy Trolley"
  available: number;    // units currently available
}

interface Container {
  id: string;
  type: ContainerType;
  subtypes: ContainerSubtype[];
}

interface CartItem {
  subSkuTypeId: string;       // unique key (matches SubSKUType.id)
  subSkuTypeName: string;     // display name, e.g. "Widget A – Sub-SKU Type 1"
  skuName: string;            // parent SKU name for grouping display
  quantity: number;
  maxQty: number;             // max allowed (carried from SubSKUType.maxQty)
}

interface ContainerCartItem {
  containerId: string;          // parent Container.id
  containerType: ContainerType;
  subtypeId: string;            // ContainerSubtype.id
  subtypeName: string;          // e.g. "Heavy Trolley"
  quantity: number;
}

interface StagingCell {
  id: string;                              // e.g. "cell-0"
  row: number;                             // 0-based row index
  col: number;                             // 0-based column index
  status: 'empty' | 'occupied' | 'reserved';
  material?: string;                       // e.g. "Widget A – T1" (if occupied)
  trolleyId?: string;                      // e.g. "TR-101" (if occupied)
}

interface StagingArea {
  id: string;           // e.g. "sa-01"
  name: string;         // e.g. "SA 001"
  rows: number;         // grid rows
  cols: number;         // grid columns
  cells: StagingCell[]; // array of rows×cols cells
}

interface Request {
  id: string;         // e.g. "Req-001"
  type: 'material' | 'container' | 'return_trolley';
  status: 'pending' | 'awaiting_confirmation' | 'in_progress'
        | 'completed' | 'failed' | 'breakdown';
  createdAt: string;  // display timestamp, e.g. "Today, 3:00 pm"
  items: string;      // human-readable summary, e.g. "Widget A – T1 × 2"
  workflow: string;   // workflow display name
  workflowId: string; // workflow ID for filtering (must match Workflow.id)
}

interface ApprovalRequest {
  id: string;               // e.g. "APR-001"
  fromStation: string;      // originating station name
  items: string;            // human-readable item name, e.g. "SKU 7765"
  quantity: number;         // requested units
  requestType: string;      // e.g. "Fulfilment Request", "Container", "Material", "Return Container"
  requestTime: string;      // display time, e.g. "3:30 pm"
  inventoryCount: number;   // current inventory level of the requested item
  inventoryStatus: 'available' | 'finishing_soon' | 'out_of_stock';
  workflow: string;         // workflow display name
  requestedAt: string;      // full timestamp, e.g. "Today, 3:30 pm"
  status: 'pending' | 'approved' | 'rejected';
}

interface InventoryRow {
  sku: string;            // Parent SKU name
  subSkuType: string;     // Sub-SKU type name (e.g. "Type 1")
  produced: number;       // Total units manufactured
  preProcessing: number;  // Units in pre-processing (not yet available)
  available: number;      // Units available for ordering
  reserved: number;       // Units reserved by pending requests
  inTransit: number;      // Units currently being transported by AMRs
  consumed: number;       // Units consumed at workstations
  total: number;          // Total units (= produced)
}

interface Workflow {
  id: string;
  name: string;
  assignmentStrategy: 'request-based' | 'on-route';
  confirmationMode: 'auto' | 'manual';
}

interface DeviceUser {
  id: string;
  username: string;
  stationId: string;    // e.g. "Station 001" — shown in breadcrumbs
  stationCode: string;  // e.g. "PR 001" — shown in sidebar / login
  stationName: string;  // e.g. "Assembly Line A – Requester"
  deviceName: string;   // e.g. "YOHT-123"
  role: 'requester' | 'dispatcher' | 'approver';
  workflows: Workflow[];           // available workflows for this station
  stagingAreaIds: string[];        // staging areas this device can access
}

const MOCK_CONTAINERS = {
  'TR-001': { containerId: 'TR-001', containerType: 'Trolley', subtypeName: 'Heavy Trolley',
              location: 'Staging Area 1 – Cell A3', status: 'Empty', lastUsed: '2 hrs ago' },
  'TR-002': { containerId: 'TR-002', containerType: 'Trolley', subtypeName: 'Light Trolley',
              location: 'Assembly Line A – Drop', status: 'Empty', lastUsed: '45 min ago' },
  'TR-103': { containerId: 'TR-103', containerType: 'Trolley', subtypeName: 'Flat Trolley',
              location: 'Staging Area 2 – Cell B1', status: 'Empty', lastUsed: '1 hr ago' },
  'PL-001': { containerId: 'PL-001', containerType: 'Pallet', subtypeName: 'Standard Pallet',
              location: 'QC Station B', status: 'Empty', lastUsed: '3 hrs ago' },
};