Add logging, dialog UI, README updates and initial release

log/update-manager.sh

@@ -0,0 +1,117 @@
+#!/usr/bin/env bash
+
+UPDATE_MANAGER_SCRIPT="/opt/update-manager/update-manager.sh"
+
+get_log_file() {
+    local primary="/opt/update-manager/log/update-manager.log"
+    local fallback="$HOME/update-manager/log/update-manager.log"
+
+    if [[ -f "$primary" ]]; then
+        echo "$primary"
+    else
+        echo "$fallback"
+    fi
+}
+
+run_check() {
+    echo
+    bash "$UPDATE_MANAGER_SCRIPT" check
+    echo
+    read -rp "Press Enter to continue..."
+}
+
+view_log() {
+    local log_file
+    log_file="$(get_log_file)"
+
+    echo
+    if [[ -f "$log_file" ]]; then
+        less "$log_file"
+    else
+        echo "Log file not found: $log_file"
+        echo
+        read -rp "Press Enter to continue..."
+    fi
+}
+
+follow_log() {
+    local log_file
+    log_file="$(get_log_file)"
+
+    echo
+    if [[ -f "$log_file" ]]; then
+        echo "Following log: $log_file"
+        echo "Press Ctrl+C to stop."
+        echo
+        tail -f "$log_file"
+    else
+        echo "Log file not found: $log_file"
+    fi
+
+    echo
+    read -rp "Press Enter to continue..."
+}
+
+show_log_location() {
+    local log_file
+    log_file="$(get_log_file)"
+
+    echo
+    echo "Log file location:"
+    echo "$log_file"
+    echo
+    read -rp "Press Enter to continue..."
+}
+
+show_menu() {
+    clear
+    echo "=================================="
+    echo "       Update Manager UI"
+    echo "=================================="
+    echo
+    echo "1) Run update check"
+    echo "2) View full log"
+    echo "3) Follow log live"
+    echo "4) Show log location"
+    echo "0) Exit"
+    echo
+}
+
+main() {
+    if [[ ! -f "$UPDATE_MANAGER_SCRIPT" ]]; then
+        echo "Update manager script not found: $UPDATE_MANAGER_SCRIPT"
+        exit 1
+    fi
+
+    while true; do
+        show_menu
+        read -rp "Choose an option: " choice
+
+        case "$choice" in
+            1)
+                run_check
+                ;;
+            2)
+                view_log
+                ;;
+            3)
+                follow_log
+                ;;
+            4)
+                show_log_location
+                ;;
+            0)
+                echo
+                echo "Bye."
+                exit 0
+                ;;
+            *)
+                echo
+                echo "Invalid choice."
+                read -rp "Press Enter to continue..."
+                ;;
+        esac
+    done
+}
+
+main