[update] Remove unused Times New Roman font dependency from pom.xml. Enhance Client and ClientHandler classes with improved network resilience features, including IdleStateHandler for better timeout management and user-friendly error dialogs for connection issues. Update Server class to include IdleStateHandler for improved tolerance of network delays.

update_server_script.ps1

@@ -0,0 +1,175 @@
+<#
+.SYNOPSIS
+    Checks for a new version of the server JAR application, downloads it, and replaces the old version.
+
+.DESCRIPTION
+    This script is dedicated to updating the server application.
+    It reads a local version_server.json file to determine the current version.
+    It then fetches a remote latest_server.json file from a specified URL to see if a newer version is available.
+    If an update is found, it stops the running server, downloads the new JAR,
+    backs it up, installs the new one, and restarts the server.
+
+.NOTES
+    Author: Dat Le
+    Date: 2025-09-07
+    Version: 1.1.0 (Server Only)
+#>
+
+# --- CONFIGURATION ---
+# IMPORTANT: This URL should now point to your 'latest_server.json' file on GitHub.
+$remoteVersionInfoUrl = "https://github.com/lds217/BSK-All-in-One-Clinic-Management-System/releases/download/v1.1.0/latest.json"
+
+# --- SCRIPT START ---
+$ProgressPreference = 'Continue'
+
+# Get the directory where this script is located.
+$scriptPath = $PSScriptRoot
+# Get the directory where this script is located.
+$scriptPath = $PSScriptRoot
+
+# Define the paths for the local files (now server-specific)
+$localVersionFile = Join-Path $scriptPath "version_server.json"
+$jarFileName = "server.jar"
+$localJarFile = Join-Path $scriptPath $jarFileName
+$backupJarFile = Join-Path $scriptPath "$($jarFileName).old"
+
+# --- Step 1: Read the local version information ---
+Write-Host "Reading local server version info from '$localVersionFile'..."
+if (-not (Test-Path $localVersionFile)) {
+    Write-Error "Error: Local version file not found at '$localVersionFile'. Cannot proceed."
+    Read-Host "Press Enter to exit"
+    exit 1
+}
+
+try {
+    $localVersionInfo = Get-Content $localVersionFile | ConvertFrom-Json
+    Write-Host " - Local Server Version: $($localVersionInfo.currentVersion)"
+}
+catch {
+    Write-Error "Error: Could not read or parse the local version_server.json file. Is it valid JSON?"
+    Read-Host "Press Enter to exit"
+    exit 1
+}
+
+
+# --- Step 2: Fetch the remote version information ---
+Write-Host "Fetching remote server version info from '$remoteVersionInfoUrl'..."
+try {
+    $remoteVersionInfo = Invoke-RestMethod -Uri $remoteVersionInfoUrl
+    Write-Host " - Latest Remote Version: $($remoteVersionInfo.latestVersion)"
+}
+catch {
+    Write-Error "Error: Failed to fetch or parse remote version info. Check the URL and your internet connection."
+    Read-Host "Press Enter to exit"
+    exit 1
+}
+
+
+# --- Step 3: Compare versions ---
+if ([version]$localVersionInfo.currentVersion -ge [version]$remoteVersionInfo.latestVersion) {
+    Write-Host "`nResult: Your server application is up-to-date! (Version $($localVersionInfo.currentVersion))"
+}
+else {
+    Write-Host "`nResult: New version available! (Version $($remoteVersionInfo.latestVersion)). Starting update process."
+    Write-Host "Release Notes: $($remoteVersionInfo.releaseNotes)"
+
+    # Get the correct download URL (now simplified)
+    $downloadUrl = $remoteVersionInfo.files.server
+    if (-not $downloadUrl) {
+        Write-Error "Error: 'downloadUrl' not found in remote JSON."
+        Read-Host "Press Enter to exit"
+        exit 1
+    }
+
+    Write-Host "Download URL: $downloadUrl"
+
+    # --- Step 4: Stop the application ---
+    Write-Host "`nStopping application..."
+    try {
+        # This command finds the java process running 'server.jar' and stops it.
+        Get-CimInstance Win32_Process | Where-Object { $_.CommandLine -like "*$jarFileName*" } | ForEach-Object { Stop-Process -Id $_.ProcessId -Force }
+        Write-Host " - Application stopped successfully."
+        Start-Sleep -Seconds 3 # Give the OS time to release file locks
+    }
+    catch {
+        Write-Warning "Could not automatically stop the application. Please stop it manually before continuing."
+        Read-Host "Press Enter to continue after stopping the application"
+    }
+
+
+    # --- Step 5: Download and Replace ---
+    $tempDownloadPath = Join-Path $scriptPath "server.jar.download"
+
+    Write-Host "`nDownloading new version..."
+    try {
+        # First, get the file size for progress calculation
+        $response = Invoke-WebRequest -Uri $downloadUrl -Method Head
+        $totalSize = [int64]$response.Headers.'Content-Length'
+        
+        Write-Host "File size: $([math]::Round($totalSize/1MB, 2)) MB"
+        Write-Host "Starting download with progress indicator..."
+        
+        # Use Start-BitsTransfer for better progress display if available
+        if (Get-Command Start-BitsTransfer -ErrorAction SilentlyContinue) {
+            Start-BitsTransfer -Source $downloadUrl -Destination $tempDownloadPath -DisplayName "Downloading server.jar" -Description "BSK Server Update"
+        }
+        else {
+            # Fallback: Custom progress implementation
+            $webClient = New-Object System.Net.WebClient
+            
+            # Register progress event
+            Register-ObjectEvent -InputObject $webClient -EventName DownloadProgressChanged -Action {
+                $percent = $Event.SourceEventArgs.ProgressPercentage
+                $received = $Event.SourceEventArgs.BytesReceived
+                $total = $Event.SourceEventArgs.TotalBytesToReceive
+                $speed = [math]::Round($received / 1MB, 2)
+                
+                Write-Progress -Activity "Downloading server.jar" -Status "$percent% Complete" -PercentComplete $percent -CurrentOperation "Downloaded: $speed MB / $([math]::Round($total/1MB, 2)) MB"
+            } | Out-Null
+            
+            try {
+                $webClient.DownloadFile($downloadUrl, $tempDownloadPath)
+                Write-Progress -Activity "Downloading server.jar" -Completed
+            }
+            finally {
+                $webClient.Dispose()
+                Get-EventSubscriber | Unregister-Event
+            }
+        }
+        
+        Write-Host "Download completed successfully!"
+    }
+    catch {
+        Write-Error "Error: Download failed. Please check the URL and your connection."
+        if (Test-Path $tempDownloadPath) { Remove-Item $tempDownloadPath }
+        Read-Host "Press Enter to exit"
+        exit 1
+    }
+
+    Write-Host "`nInstalling update..."
+    if (Test-Path $localJarFile) {
+        Write-Host " - Backing up old version to '$backupJarFile'..."
+        Move-Item -Path $localJarFile -Destination $backupJarFile -Force
+    }
+
+    Write-Host " - Installing new version..."
+    Move-Item -Path $tempDownloadPath -Destination $localJarFile -Force
+
+
+    # --- Step 6: Update the local version file ---
+    Write-Host " - Updating local version number..."
+    # Create a new JSON object to ensure the file is clean
+    @{ currentVersion = $remoteVersionInfo.latestVersion } | ConvertTo-Json -Depth 1 | Set-Content $localVersionFile
+
+
+    # --- Step 7: Restart the application ---
+    # !! CRITICAL !! You MUST customize this step.
+    Write-Host "`nRestarting application (you may need to customize this step)..."
+    # Example: Start-Process "java" -ArgumentList "-jar", $localJarFile
+    # Example: Start-Process ".\start_server.bat"
+    
+    Write-Host "`nUpdate complete! Now running version $($remoteVersionInfo.latestVersion)."
+}
+
+# Pause at the end
+Read-Host "`nPress Enter to exit."