Add LNURL withdraw routes to send flow

Author: piotr-iohk

Bitkit/Utilities/PaymentNavigationHelper.swift

@@ -103,6 +103,14 @@ struct PaymentNavigationHelper {
         currency: CurrencyViewModel,
         settings: SettingsViewModel
     ) -> SendRoute {
+        if let lnurlWithdrawData = app.lnurlWithdrawData {
+            if lnurlWithdrawData.minWithdrawable == lnurlWithdrawData.maxWithdrawable {
+                return .lnurlWithdrawConfirm
+            } else {
+                return .lnurlWithdrawAmount
+            }
+        }
+
         let shouldUseQuickpay = shouldUseQuickpay(app: app, settings: settings, currency: currency)
 
         // Handle Lightning address / LNURL pay

Bitkit/Views/Wallets/LnurlWithdraw/LnurlWithdrawAmount.swift

@@ -4,7 +4,7 @@ struct LnurlWithdrawAmount: View {
     @EnvironmentObject var app: AppViewModel
     @EnvironmentObject var currency: CurrencyViewModel
     @EnvironmentObject var wallet: WalletViewModel
-    @Binding var navigationPath: [LnurlWithdrawRoute]
+    let onContinue: () -> Void
 
     @StateObject private var amountViewModel = AmountInputViewModel()
 
@@ -65,7 +65,7 @@ struct LnurlWithdrawAmount: View {
                 }
 
                 CustomButton(title: t("common__continue"), isDisabled: !isValid) {
-                    onContinue()
+                    handleContinue()
                 }
                 .accessibilityIdentifier("ContinueAmount")
             }
@@ -80,14 +80,14 @@ struct LnurlWithdrawAmount: View {
         }
     }
 
-    private func onContinue() {
+    private func handleContinue() {
         // If minimum is above the amount the user entered, automatically set amount to that minimum
         if amount < minAmount {
             amountViewModel.updateFromSats(UInt64(minAmount), currency: currency)
         }
 
         wallet.lnurlWithdrawAmount = amount
 
-        navigationPath.append(.confirm)
+        onContinue()
     }
 }

Bitkit/Views/Wallets/LnurlWithdraw/LnurlWithdrawConfirm.swift

@@ -5,7 +5,7 @@ struct LnurlWithdrawConfirm: View {
     @EnvironmentObject var currency: CurrencyViewModel
     @EnvironmentObject var sheets: SheetViewModel
     @EnvironmentObject var wallet: WalletViewModel
-    @Binding var navigationPath: [LnurlWithdrawRoute]
+    let onFailure: (UInt64) -> Void
     @State private var isLoading = false
 
     var amount: UInt64 {
@@ -83,7 +83,7 @@ struct LnurlWithdrawConfirm: View {
 
             } catch {
                 await MainActor.run {
-                    navigationPath.append(.failure(amount: amount))
+                    onFailure(amount)
                     isLoading = false
                 }
             }

Bitkit/Views/Wallets/LnurlWithdraw/LnurlWithdrawFailure.swift

@@ -4,7 +4,6 @@ struct LnurlWithdrawFailure: View {
     @EnvironmentObject var currency: CurrencyViewModel
     @EnvironmentObject var navigation: NavigationViewModel
     @EnvironmentObject var sheets: SheetViewModel
-    @Binding var navigationPath: [LnurlWithdrawRoute]
     let amount: UInt64
 
     // TODO: add localized strings

Bitkit/Views/Wallets/LnurlWithdraw/LnurlWithdrawSheet.swift

@@ -43,11 +43,15 @@ struct LnurlWithdrawSheet: View {
     private func viewForRoute(_ route: LnurlWithdrawRoute) -> some View {
         switch route {
         case .amount:
-            LnurlWithdrawAmount(navigationPath: $navigationPath)
+            LnurlWithdrawAmount {
+                navigationPath.append(.confirm)
+            }
         case .confirm:
-            LnurlWithdrawConfirm(navigationPath: $navigationPath)
+            LnurlWithdrawConfirm { amount in
+                navigationPath.append(.failure(amount: amount))
+            }
         case let .failure(amount):
-            LnurlWithdrawFailure(navigationPath: $navigationPath, amount: amount)
+            LnurlWithdrawFailure(amount: amount)
         }
     }
 }

Bitkit/Views/Wallets/Send/SendSheet.swift

@@ -14,6 +14,9 @@ enum SendRoute: Hashable {
     case failure
     case lnurlPayAmount
     case lnurlPayConfirm
+    case lnurlWithdrawAmount
+    case lnurlWithdrawConfirm
+    case lnurlWithdrawFailure(amount: UInt64)
 }
 
 struct SendConfig {
@@ -96,6 +99,16 @@ struct SendSheet: View {
             LnurlPayAmount(navigationPath: $navigationPath)
         case .lnurlPayConfirm:
             LnurlPayConfirm(navigationPath: $navigationPath)
+        case .lnurlWithdrawAmount:
+            LnurlWithdrawAmount {
+                navigationPath.append(.lnurlWithdrawConfirm)
+            }
+        case .lnurlWithdrawConfirm:
+            LnurlWithdrawConfirm { amount in
+                navigationPath.append(.lnurlWithdrawFailure(amount: amount))
+            }
+        case let .lnurlWithdrawFailure(amount):
+            LnurlWithdrawFailure(amount: amount)
         }
     }
 }