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refactor: extract BalanceView to simplify WalletView and modularize b… #288
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reez
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bitcoindevkit:main
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r1b2ns:improv/simplify-balance-component
Apr 22, 2025
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| // | ||
| // BalanceView.swift | ||
| // BDKSwiftExampleWallet | ||
| // | ||
| // Created by Rubens Machion on 22/04/25. | ||
| // | ||
|
|
||
| import SwiftUI | ||
|
|
||
| struct BalanceView: View { | ||
|
|
||
| @State private var balanceTextPulsingOpacity: Double = 0.7 | ||
|
|
||
| private var format: BalanceDisplayFormat | ||
| private let balance: UInt64 | ||
| private var fiatPrice: Double | ||
| private var satsPrice: Double { | ||
| let usdValue = Double(balance).valueInUSD(price: fiatPrice) | ||
| return usdValue | ||
| } | ||
|
|
||
| private var currencySymbol: some View { | ||
| Image(systemName: format == .fiat ? "dollarsign" : "bitcoinsign") | ||
| .foregroundStyle(.secondary) | ||
| .font(.title) | ||
| .fontWeight(.thin) | ||
| .transition( | ||
| .asymmetric( | ||
| insertion: .move(edge: .leading).combined(with: .opacity), | ||
| removal: .move(edge: .trailing).combined(with: .opacity) | ||
| ) | ||
| ) | ||
| .opacity(format == .sats || format == .bip21q ? 0 : 1) | ||
| .id("symbol-\(format)") | ||
| .animation(.spring(response: 0.3, dampingFraction: 0.7), value: format) | ||
| } | ||
|
|
||
| @MainActor | ||
| private var formattedBalance: String { | ||
| switch format { | ||
| case .sats: | ||
| return balance.formatted(.number) | ||
| case .bitcoin: | ||
| return String(format: "%.8f", Double(balance) / 100_000_000) | ||
| case .bitcoinSats: | ||
| return balance.formattedSatoshis() | ||
| case .bip21q: | ||
| return balance.formatted(.number) | ||
| case .fiat: | ||
| return satsPrice.formatted(.number.precision(.fractionLength(2))) | ||
| } | ||
| } | ||
|
|
||
| @MainActor | ||
| var balanceText: some View { | ||
| Text(format == .fiat && satsPrice == 0 ? "00.00" : formattedBalance) | ||
| .contentTransition(.numericText(countsDown: true)) | ||
| .fontWeight(.semibold) | ||
| .fontDesign(.rounded) | ||
| .foregroundStyle( | ||
| format == .fiat && satsPrice == 0 ? .secondary : .primary | ||
| ) | ||
| .opacity( | ||
| format == .fiat && satsPrice == 0 ? balanceTextPulsingOpacity : 1 | ||
| ) | ||
| .animation(.spring(response: 0.4, dampingFraction: 0.8), value: format) | ||
| .animation(.easeInOut, value: satsPrice) | ||
| .onAppear { | ||
| withAnimation(.easeInOut(duration: 1.5).repeatForever(autoreverses: true)) { | ||
| balanceTextPulsingOpacity = 0.3 | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private var unitText: some View { | ||
| Text(format.displayText) | ||
| .foregroundStyle(.secondary) | ||
| .fontWeight(.thin) | ||
| .transition( | ||
| .asymmetric( | ||
| insertion: .move(edge: .trailing).combined(with: .opacity), | ||
| removal: .move(edge: .leading).combined(with: .opacity) | ||
| ) | ||
| ) | ||
| .id("format-\(format)") | ||
| .animation(.spring(response: 0.3, dampingFraction: 0.7), value: format) | ||
| } | ||
|
|
||
| init(format: BalanceDisplayFormat, balance: UInt64, fiatPrice: Double) { | ||
| self.format = format | ||
| self.balance = balance | ||
| self.fiatPrice = fiatPrice | ||
| } | ||
|
|
||
| var body: some View { | ||
| buildBalance() | ||
| } | ||
|
|
||
| @ViewBuilder | ||
| private func buildBalance() -> some View { | ||
| VStack(spacing: 10) { | ||
| HStack(spacing: 15) { | ||
| if format != .sats && format != .bip21q { | ||
| currencySymbol | ||
| } | ||
| balanceText | ||
| unitText | ||
| } | ||
| .font(.largeTitle) | ||
| .lineLimit(1) | ||
| .minimumScaleFactor(0.5) | ||
| } | ||
| .accessibilityLabel("Bitcoin Balance") | ||
| .accessibilityValue(formattedBalance) | ||
| .sensoryFeedback(.selection, trigger: format) | ||
| .padding(.vertical, 35.0) | ||
| } | ||
| } | ||
|
|
||
| #if DEBUG | ||
| #Preview { | ||
| BalanceView( | ||
| format: .bip21q, | ||
| balance: 5000, | ||
| fiatPrice: 89000 | ||
| ) | ||
| } | ||
| #endif |
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