[taler-taler-ios] 29/32: BarGraph also for Exchanges

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marc-stibane pushed a commit to branch master
in repository taler-ios.

commit 9b2f26ff3ee711726bc81de32ccf0d3f7eaa342a
Author: Marc Stibane <marc@taler.net>
AuthorDate: Sun Oct 15 23:33:33 2023 +0200

    BarGraph also for Exchanges
---
 .../Views/Balances/BalancesSectionView.swift       |  6 +----
 .../Views/Exchange/ExchangeSectionView.swift       |  3 +--
 TalerWallet1/Views/HelperViews/BarGraph.swift      | 31 +++++++++++++++++++++-
 3 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/TalerWallet1/Views/Balances/BalancesSectionView.swift 
b/TalerWallet1/Views/Balances/BalancesSectionView.swift
index 1954386..fce76ad 100644
--- a/TalerWallet1/Views/Balances/BalancesSectionView.swift
+++ b/TalerWallet1/Views/Balances/BalancesSectionView.swift
@@ -110,11 +110,7 @@ extension BalancesSectionView: View {
 
             }
         } header: {
-            HStack (alignment: .center, spacing: 10) {
-                Text(currency)
-                    .accessibilityFont(.title2)
-                BarGraph(transactions: $completedTransactions, barHeight: 10)
-            }
+            BarGraphHeader(stack: stack.push(), currency: currency)
         }.id(sectionID)
         .task {
 //            if shownSectionID != sectionID {
diff --git a/TalerWallet1/Views/Exchange/ExchangeSectionView.swift 
b/TalerWallet1/Views/Exchange/ExchangeSectionView.swift
index 1a6c622..73e8dbf 100644
--- a/TalerWallet1/Views/Exchange/ExchangeSectionView.swift
+++ b/TalerWallet1/Views/Exchange/ExchangeSectionView.swift
@@ -95,8 +95,7 @@ struct ExchangeSectionView: View {
             }
             .accessibilityElement(children: .combine)
         } header: {
-            Text(currency)
-                .accessibilityFont(.title2)
+            BarGraphHeader(stack: stack.push(), currency: currency)
         }
     }
 }
diff --git a/TalerWallet1/Views/HelperViews/BarGraph.swift 
b/TalerWallet1/Views/HelperViews/BarGraph.swift
index 936b852..dd66634 100644
--- a/TalerWallet1/Views/HelperViews/BarGraph.swift
+++ b/TalerWallet1/Views/HelperViews/BarGraph.swift
@@ -3,9 +3,38 @@
  * See LICENSE.md
  */
 import SwiftUI
+import SymLog
 
+let MAXBARS = 10
+
+struct BarGraphHeader: View {
+    private let symLog = SymLogV(0)
+    let stack: CallStack
+    let currency: String
+
+    @EnvironmentObject private var model: WalletModel
+    @State private var completedTransactions: [Transaction] = []
+
+    var body: some View {
+        HStack (alignment: .center, spacing: 10) {
+            Text(currency)
+                .accessibilityFont(.title2)
+            BarGraph(transactions: $completedTransactions,
+                     maxBars: MAXBARS, barHeight: 10)       // TODO: barHeight 
relative to fontSize
+        }
+        .task {
+            symLog.log(".task for BarGraphHeader(\(currency)) - reload 
Transactions")
+            // TODO: only load the 10 most recent transactions
+            let response = await model.transactionsT(stack.push(".task - 
reload Transactions for \(currency)"),
+                                                     currency: currency)
+            completedTransactions = WalletModel.completedTransactions(response)
+        }
+    }
+}
+// MARK: -
 struct BarGraph: View {
     @Binding var transactions: [Transaction]
+    let maxBars: Int
     let barHeight : Double
 
     func maxValue(_ someTransactions: [Transaction]) -> Double {
@@ -20,7 +49,7 @@ struct BarGraph: View {
     }
 
     var body: some View {
-        let slice = transactions.prefix(10)
+        let slice = transactions.prefix(maxBars)
         let count = slice.count
         let tenTransactions: [Transaction] = Array(slice)
         let maxValue = maxValue(tenTransactions)

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