From 4d7b01831baab3d147f82b23a6a9b622407c3d34 Mon Sep 17 00:00:00 2001
From: Nico Verbruggen <mail@nicoverbruggen.be>
Date: Mon, 30 Jan 2023 19:10:52 +0100
Subject: [PATCH] =?UTF-8?q?=E2=9C=A8=20Extra=20verbose=20logging?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

You can start extra verbose logging by running: `touch ~/.config/phpmon/verbose`

Once this file exists, you can find the latest log in: `~/.config/phpmon/last_session.log`.
---
 phpmon/Common/Core/Logger.swift     | 40 ++++++++++++++++++++++++-----
 phpmon/Common/Shell/RealShell.swift |  2 +-
 phpmon/Domain/App/AppDelegate.swift | 10 +++++---
 3 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/phpmon/Common/Core/Logger.swift b/phpmon/Common/Core/Logger.swift
index 7be4247..8bdb4c8 100644
--- a/phpmon/Common/Core/Logger.swift
+++ b/phpmon/Common/Core/Logger.swift
@@ -12,6 +12,9 @@ class Log {
 
     static var shared = Log()
 
+    var logFilePath = "~/.config/phpmon/last_session.log"
+    var logExists = false
+
     enum Verbosity: Int {
         case error = 1,
              warning = 2,
@@ -24,36 +27,61 @@ class Log {
         }
     }
 
-    var verbosity: Verbosity = .warning
+    public func prepareLogFile() {
+        if !isRunningTests && Verbosity.cli.isApplicable() {
+            _ = system("mkdir -p ~/.config/phpmon 2> /dev/null")
+            _ = system("rm ~/.config/phpmon/last_session.log 2> /dev/null")
+            _ = system("touch ~/.config/phpmon/last_session.log 2> /dev/null")
+            self.logExists = FileSystem.fileExists(self.logFilePath)
+        }
+    }
+
+    var verbosity: Verbosity = .warning {
+        didSet {
+            self.prepareLogFile()
+        }
+    }
 
     static func err(_ item: Any) {
         if Verbosity.error.isApplicable() {
-            print("[E] \(item)")
+            Log.shared.log("[E] \(item)")
         }
     }
 
     static func warn(_ item: Any) {
         if Verbosity.warning.isApplicable() {
-            print("[W] \(item)")
+            Log.shared.log("[W] \(item)")
         }
     }
 
     static func info(_ item: Any) {
         if Verbosity.info.isApplicable() {
-            print("\(item)")
+            Log.shared.log("\(item)")
         }
     }
 
     static func perf(_ item: Any) {
         if Verbosity.performance.isApplicable() {
-            print("[P] \(item)")
+            Log.shared.log("[P] \(item)")
         }
     }
 
     static func separator(as verbosity: Verbosity = .info) {
         if verbosity.isApplicable() {
-            print("==================================")
+            Log.shared.log("==================================")
         }
     }
 
+    private func log(_ text: String) {
+        print(text)
+
+        if logExists && Verbosity.cli.isApplicable() {
+            let logFile = URL(string: self.logFilePath.replacingTildeWithHomeDirectory)!
+            if let fileHandle = try? FileHandle(forWritingTo: logFile) {
+                fileHandle.seekToEndOfFile()
+                fileHandle.write(text.appending("\n").data(using: .utf8).unsafelyUnwrapped)
+                fileHandle.closeFile()
+            }
+        }
+    }
 }
diff --git a/phpmon/Common/Shell/RealShell.swift b/phpmon/Common/Shell/RealShell.swift
index ed69343..1ece815 100644
--- a/phpmon/Common/Shell/RealShell.swift
+++ b/phpmon/Common/Shell/RealShell.swift
@@ -140,7 +140,7 @@ class RealShell: ShellProtocol {
 
             """)
 
-            print(log)
+            Log.info(log)
         }
 
         return .out(stdOut, stdErr)
diff --git a/phpmon/Domain/App/AppDelegate.swift b/phpmon/Domain/App/AppDelegate.swift
index 4afceae..27eba8e 100644
--- a/phpmon/Domain/App/AppDelegate.swift
+++ b/phpmon/Domain/App/AppDelegate.swift
@@ -56,10 +56,9 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
      When the application initializes, create all singletons.
      */
     override init() {
-        logger.verbosity = .info
-
         #if DEBUG
         logger.verbosity = .performance
+
         if let profile = CommandLine.arguments.first(where: { $0.matches(pattern: "--configuration:*") }) {
             Self.initializeTestingProfile(profile.replacingOccurrences(of: "--configuration:", with: ""))
         }
@@ -72,7 +71,12 @@ class AppDelegate: NSObject, NSApplicationDelegate, UNUserNotificationCenterDele
 
         if CommandLine.arguments.contains("--cli") {
             logger.verbosity = .cli
-            Log.info("Extra CLI mode has been activated.")
+            Log.info("Extra CLI mode has been activated via --cli flag.")
+        }
+
+        if FileSystem.fileExists("~/.config/phpmon/verbose") {
+            logger.verbosity = .cli
+            Log.info("Extra CLI mode is on (`~/.config/phpmon/verbose` exists).")
         }
 
         Log.separator(as: .info)