feat: add option to view log messages inside the app (fixes #286)

Author: pixelspark

Localizable.xcstrings

@@ -15874,6 +15874,46 @@
         }
       }
     },
+    "Log" : {
+      "localizations" : {
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Protokoll"
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Registro"
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Registro"
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Logboek"
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Журнал"
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "日志"
+          }
+        }
+      }
+    },
     "Logging" : {
       "localizations" : {
         "de" : {
@@ -29928,6 +29968,46 @@
         }
       }
     },
+    "View log messages" : {
+      "localizations" : {
+        "de" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Protokollnachrichten anzeigen"
+          }
+        },
+        "es" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Ver mensajes de registro"
+          }
+        },
+        "it" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Visualizza i messaggi di log"
+          }
+        },
+        "nl" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Logberichten bekijken"
+          }
+        },
+        "uk" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Переглянути журнали повідомлень"
+          }
+        },
+        "zh-Hans" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "查看日志信息"
+          }
+        }
+      }
+    },
     "View settings" : {
       "localizations" : {
         "de" : {

Sushitrain/SupportView.swift

@@ -93,6 +93,33 @@ extension AppState {
 	}
 }
 
+private struct LogView: View {
+	@Environment(AppState.self) private var appState
+	@State private var lines: String = ""
+	
+	var body: some View {
+		ScrollView {
+			Text(self.lines)
+				.textSelection(.enabled)
+				.multilineTextAlignment(.leading)
+				.lineLimit(nil)
+				.monospaced()
+				.padding()
+				.fixedSize(horizontal: false, vertical: true)
+		}
+		.navigationTitle("Log")
+		#if os(iOS)
+			.navigationBarTitleDisplayMode(.inline)
+		#endif
+		.task {
+			Task {
+				var error: NSError? = nil
+				self.lines = appState.client.getLastLogLines(&error)
+			}
+		}
+	}
+}
+
 private struct SupportBundleView: View {
 	@Environment(AppState.self) private var appState
 	@State private var writingSupportBundle: Bool = false
@@ -189,6 +216,7 @@ private struct SupportBundleView: View {
 
 struct SupportView: View {
 	@Environment(AppState.self) private var appState
+	@State private var showLog: Bool = false
 
 	var body: some View {
 		Form {
@@ -239,6 +267,14 @@ struct SupportView: View {
 				NavigationLink(destination: TroubleshootingView(userSettings: appState.userSettings)) {
 					Label("Troubleshooting options", systemImage: "book.and.wrench")
 				}
+				
+				Button("View log messages", systemImage: "heart.text.clipboard") {
+					showLog = true
+				}.sheet(isPresented: $showLog) {
+					NavigationStack {
+						LogView()
+					}
+				}
 			}
 		}
 		#if os(macOS)

SushitrainCore/src/sushitrain.go

@@ -8,6 +8,7 @@ package sushitrain
 import (
 	"archive/zip"
 	"bufio"
+	"bytes"
 	"context"
 	"crypto/tls"
 	"encoding/json"
@@ -1486,6 +1487,15 @@ func (c *Client) ClearDatabase() error {
 	return os.RemoveAll(dbPath)
 }
 
+func (c *Client) GetLastLogLines() (string, error) {
+	var buf bytes.Buffer
+	err := c.logHandler.tail.write(&buf, true)
+	if err != nil {
+		return "", err
+	}
+	return buf.String(), nil
+}
+
 func (c *Client) WriteSupportBundle(path string, appInfo []byte) error {
 	out, err := os.Create(path)
 	if err != nil {