major logging overhaul, plus other fixes

Install-Nextcloud.ps1

@@ -1,17 +1,12 @@
 ## Define URL for downloading the installer
 $URL = 'https://dev.emberkom.com/emberkom/management-scripts/raw/branch/master/resources/Nextcloud-3.0.1-setup.exe'
-$FILE = Split-Path $URL -Leaf
+$FILE = '{0}{1}' -f (GetTempPath), (Split-Path $URL -Leaf)
 
-## Remove previous package
-If ( Test-Path $FILE ) { Remove-Item -Path $FILE -Force | Out-Null}
-
-## Download installer
-Write-Output "Downloading: ${URL}"
-Try { (New-Object System.Net.WebClient).DownloadFile($URL, $FILE) }
-Catch { Write-Output $_.Exception.Message }
+$FILE = Download-File -URL $URL -File $FILE
 
 ## Stop app if it's currently running
-Get-Process | Where { $_.Name -like "nextcloud" } | Stop-Process -Force
+Try { Get-Process | Where { $_.Name -like "nextcloud" } | Stop-Process -Force }
+Catch { LogErr $_.Exception.Message }
 
 ## Get the install location so we can start the app again after installation
 If ( Test-Path "HKLM:SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Nextcloud" )
@@ -20,25 +15,12 @@ ElseIf ( Test-Path "HKLM:SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Nex
 { $InstallPath = '{0}\nextcloud.exe' -f $(Get-ItemProperty -Path "HKLM:SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Nextcloud" -ErrorAction SilentlyContinue).InstallLocation }
 
 ## Install package
-If ( Test-Path $FILE )
-{
-    Write-Output "Installing: ${FILE}"
-    Try { Start-Process -FilePath $FILE -ArgumentList "/S" -Wait }
-    Catch { $_.Exception.Message }
-}
-Else { Write-Output "${FILE} does not exist" }
+Install-Program -Path $FILE -Arguments "/S" -Delete
 
 ## Start the app after installation
 If ( Test-Path $InstallPath )
 {
-    Write-Output "Starting Nextcloud"
-    Start-Process $InstallPath
-}
-
-## Delete installer package
-If ( Test-Path $FILE )
-{
-    Write-Output "Deleting ${FILE}"
-    Try { Remove-Item -Path $FILE -Force }
-    Catch { Write-Output $_.Exception.Message }
+    LogMsg "Starting Nextcloud"
+    Try { Start-Process $InstallPath }
+    Catch { LogErr $_.Exception.Message }
 }