/// GraphQL queries and mutations for the Velmart Picker app.
/// These map directly to the Magento picker_request schema defined in the backend.

class PickerQueries {
  // ─── Auth ──────────────────────────────────────────────────────────────────

  static const String requestOtp = r'''
    mutation RequestOtp($phone: String!) {
      pickerRequestOtp(phone: $phone) {
        success
        message
      }
    }
  ''';

  static const String verifyOtp = r'''
    mutation VerifyOtp($phone: String!, $code: String!) {
      pickerVerifyOtp(phone: $phone, code: $code) {
        token
        picker {
          id
          name
          phone
        }
      }
    }
  ''';

  // ─── Orders / Batches ──────────────────────────────────────────────────────

  static const String getOrderQueue = r'''
    query GetOrderQueue($shopId: Int!, $status: [PickerRequestStatus]) {
      pickerRequests(shopId: $shopId, status: $status) {
        items {
          requestId
          orderNumber: order { incrementId }
          amount: order { grandTotal }
          slotTime: deadline
          status
          totalQty
          totalWeight
          customer: order {
            customerFirstname
            customerLastname
            customerPhone: billingAddress { telephone }
            customerComment: order { customerNote }
          }
          segments: items {
            id
            name: zone { name }
            zone: zone { id }
            items {
              id
              sku
              name: orderItem { name }
              price: orderItem { price }
              planQty: qty
              actualQty
              status
              type
              imageUrl: orderItem { product { thumbnail { url } } }
              substitutes {
                id
                sku
                name
                priority
              }
            }
          }
        }
      }
    }
  ''';

  static const String getOrderDetail = r'''
    query GetOrderDetail($requestId: Int!) {
      pickerRequest(id: $requestId) {
        requestId
        status
        totalQty
        totalWeight
        deadline
        order {
          incrementId
          grandTotal
          customerFirstname
          customerLastname
          customerNote
          billingAddress { telephone }
        }
        items {
          id
          sku
          qty
          actualQty
          status
          type
          weight
          orderItem { name price product { thumbnail { url } } }
          zone { id name }
          substitutes { id sku name priority }
          slot { id name type maxOrders }
        }
      }
    }
  ''';

  // ─── Item mutations ────────────────────────────────────────────────────────

  static const String markItemPicked = r'''
    mutation MarkItemPicked($itemId: Int!, $actualQty: Float!) {
      pickerMarkItemPicked(itemId: $itemId, actualQty: $actualQty) {
        id
        status
        actualQty
      }
    }
  ''';

  static const String markItemNotFound = r'''
    mutation MarkItemNotFound($itemId: Int!) {
      pickerMarkItemNotFound(itemId: $itemId) {
        id
        status
      }
    }
  ''';

  static const String replaceItem = r'''
    mutation ReplaceItem($itemId: Int!, $substituteSku: String!, $actualQty: Float!) {
      pickerReplaceItem(itemId: $itemId, substituteSku: $substituteSku, actualQty: $actualQty) {
        id
        status
        sku
        actualQty
      }
    }
  ''';

  // ─── Slots ─────────────────────────────────────────────────────────────────

  static const String getAvailableSlots = r'''
    query GetAvailableSlots($shopId: Int!) {
      pickerAvailableSlots(shopId: $shopId) {
        id
        name
        type
        maxOrders
        currentOrders
      }
    }
  ''';

  static const String assignSlots = r'''
    mutation AssignSlots($requestId: Int!, $slotIds: [Int!]!) {
      pickerAssignSlots(requestId: $requestId, slotIds: $slotIds) {
        success
        slots { id name type }
      }
    }
  ''';

  // ─── Finalize ──────────────────────────────────────────────────────────────

  static const String finalizeOrder = r'''
    mutation FinalizeOrder($requestId: Int!) {
      pickerFinalizeOrder(requestId: $requestId) {
        success
        requestId
        derivedRequestId
        message
      }
    }
  ''';
}