#-- what and how to install (hash list as used by Run-Task and Check-Prerequisites)
$tasks = @(
  @{
    title  = "Python 2.7.12"
    url    = "https://www.python.org/ftp/python/2.7.12/python-2.7.12.msi"
    cmd    = ""
    args   = 'TARGETDIR="{PYTHON}" /qb-!'
    regkey = "$regPathLM\{9DA28CE5-0AA5-429E-86D8-686ED898C665}"
    testpth= "{PYTHON}\pythonw.exe"
    is_opt = ''
    prescn = ''
  },
  @{
    title  = "PyGtk 2.24.2"
    url    = "http://ftp.gnome.org/pub/GNOME/binaries/win32/pygtk/2.24/pygtk-all-in-one-2.24.2.win32-py2.7.msi"
    cmd    = ""
    args   = 'TARGETDIR="{PYTHON}" ADDLOCAL=ALL REMOVE=PythonExtensionModulePyGtkSourceview2,PythonExtensionModulePyGoocanvas,PythonExtensionModulePyRsvg,DevelopmentTools /qb-!'
    regkey = "$regPathLM\{09F82967-D26B-48AC-830E-33191EC177C8}"
    testpth= "{PYTHON}\Lib\site-packages\gtk-2.0\pygtk-2.24.0-py2.7.egg-info"
  },
  @{
    title  = "Python requests"
    url    = "requests" # no download url, pip handles this
    cmd    = "easy_install"
    testpth= "{PYTHON}\Lib\site-packages\requests-2*py2.7.egg"
  },
  @{
    title  = "LXML 2.3"
    url    = "https://pypi.python.org/packages/d4/fa/e4e0c7a8fe971b10e275cdc20efd16f553a225e700c400c11da25276e4f4/lxml-2.3-py2.7-win32.egg"
    cmd    = "easy_install"
    testpth= "{PYTHON}\Lib\site-packages\lxml-2.3-py2.7-win32.egg"
  },
  @{
    title  = "PyQuery 1.2.1"
    url    = "https://pypi.python.org/packages/62/71/8ac1f5c0251e51714d20e4b102710d5eee1683c916616129552b0a025ba5/pyquery-1.2.17-py2.py3-none-any.whl"
    cmd    = "pip"
    args   = "--disable-pip-version-check"
    testpth= "{PYTHON}\Lib\site-packages\pyquery-1.2.17.dist-info"
  },
  @{
    title  = "PIL 1.1.7"
    url    = "http://effbot.org/downloads/PIL-1.1.7.win32-py2.7.exe"
    regkey = "$regPathCU\PIL-py2.7"
    testpth= "{PYTHON}\Lib\site-packages\PIL"
  },
  @{
    title  = "Streamripper 1.64.6"
    url    = "https://netcologne.dl.sourceforge.net/project/streamripper/streamripper%20%28current%29/1.64.6/streamripper-windows-installer-1.64.6.exe"
    cmd    = ""
    args   = "/S  /D={STREAMRIPPER}"  #NSIS does not use double quotes in /D parm
    regkey = "$regPathLM\Streamripper"
    testpth= "{STREAMRIPPER}\streamripper.exe"
    is_opt = '($optionalInstall)'     # ← could use '((Ask "Install streamripper too [y/N]") -match N)' instead
    prescn = 'if ($optionalInstall) {if ($_found = (Get-ITPV "Streamripper")) {$STREAMRIPPER = $_found}} else {$STREAMRIPPER=""; continue;}'
  },
  @{
    title  = "Uninstall script"

  },
  @{
    title  = "Startmenu Internet"
    cmd    = 'Make-Shortcut -dir "$StartMenu\Streamtuner2" -name "Streamtuner2 on the Web.lnk" -target "$AboutLink"'
  },
  @{
    title  = "Startmenu Reconfigure"
    cmd    = 'Make-Shortcut -dir "$StartMenu\Streamtuner2\Advanced" -name "Reconfigure.lnk" -target $ModifyPath'
  },
  @{
    title  = "Startmenu RunDebug"
    cmd    = 'Make-Shortcut -dir "$StartMenu\Streamtuner2\Advanced" -name "Run in debug mode.lnk" -target $PYTHON\python.exe -arg "$UsrFolder\bin\streamtuner2" -parm "-D"'
  },
  @{
    title  = "Startmenu RunConsole"
    cmd    = 'Make-Shortcut -dir "$StartMenu\Streamtuner2\Advanced" -name "Run with console.lnk" -target $PYTHON\python.exe -arg "$UsrFolder\bin\streamtuner2"'
  },
  @{
    title  = "Startmenu ResetPrefs"
    cmd    = 'Make-Shortcut @task'
       dir = "$StartMenu\Streamtuner2\Advanced"
      name = "Reset preferences.lnk"
    target = "$ResetPrefsPath"
  },
  @{
    title  = "FINISHED"
  }
)

        $host.UI.RawUI.set_bufferSize($MyBuffer)
        $host.UI.RawUI.set_windowSize($MyWindow)
    }
}

#-- create Desktop/Startmenu shortcuts
function Make-Shortcut {
    param($dir, $name, $target, $arg=$false, $parm=$false, [parameter(ValueFromRemainingArguments=$true)]$kwargs=0)
    if (!(Test-Path -Path $dir)) {
        New-Item -Path $dir -ItemType directory > $null
    }
    $wsh = New-Object -ComObject WScript.Shell
    if (!$wsh) { return }
    $lnk = $wsh.CreateShortcut("$dir\$name")
    $lnk.TargetPath = $target

}

#-- Operates on parameters of each hash from `$tasks`
#
#  · $title   → print current step
#  · $url     → download from given link, keep as local `$file`
#  · $cmd     → instead of running file, run a custom command
#  · $args    → used for MSI installation
#  · $testpth → check for exisiting dir/file
#  · $regkey  → set registry key if successful
#  · $is_opt  → run as expression
#  · $prescn  → used in check-prereq()
#
filter Run-Task {
    # extract flags/vars from $tasks pipe
    $title=""; $cmd=""; $url=""; $args=""; $testpth=""; $regkey=""; $is_opt=""; $prescn=""; $_found=""
    ($task = $_).GetEnumerator() | % { Set-Variable -Scope Local -Name $_.key -Value ([regex]::Replace($_.value, "[#{](\w+)[}#]", { param($m) Invoke-Expression ("$"+$m.Groups[1].Value) })) }

    # skip optionals
    if ($is_opt -AND !(Invoke-Expression $is_opt)) { return }

    # print step
    if ($title -match "\d+\.\d+") { $title = "Installing $title" }

        $wget.DownloadFile($url, "$TEMP\$file");
    }

    # run shorthand or custom command
    if ($cmd) {
        if (Test-Path $PYTHON) { chdir($PYTHON) }
        if ($cmd -eq "pip") {
            $cmd = "& `"$PYTHON\Scripts\pip.exe`" install $TEMP\$file", $args #"
        }
        elseif ($cmd -match "^(easy|easy_install|silent)$") {
            if (!($file)) {
                $cmd = "& `"$PYTHON\Scripts\easy_install.exe`" $url" #"
            }
            else {
                $cmd = "& `"$PYTHON\Scripts\easy_install.exe`" $TEMP\$file" #"
            }
        }
        Write-Host -f Yellow " → $cmd"
        Invoke-Expression "$cmd"
    }
    # msi
    elseif ($file -match ".+.msi$") {
        Write-Host -f DarkGray (" → msiexec /i " + "$file " + $args)
        Start-Process -Wait msiexec -ArgumentList /i,"$TEMP\$file", $args
        if ($regkey) {
            Set-ItemProperty -Path "$regkey" -Name "WindowsInstaller"  -Value "0"
        }
    }
    # exe
    elseif ($file -match ".+.exe$") {
        write-host -f DarkGray " → $file $args"
        if ($args) {
            Start-Process -Wait "$TEMP\$file" -ArgumentList $args
        }
        else {
            Start-Process -Wait "$TEMP\$file"
        }
    }
    # other files
    elseif ($file) {

echo.
pause
exit

:NotRunning
echo Your personal files are in %PrefsFolder%
echo.
echo This will delete all settings of %ST2% and the cached files. 

echo If you want to save your bookmarks before, then quit now and come back later...
echo.
echo.
echo | set /p=Do you want to clear all settings of %ST2% now? [y/N]
set /P INPUT=%=%
If /I NOT '%INPUT%' == 'Y' exit

del %PrefsFolder%\*.*  /F /S /Q 1>nul
rd %PrefsFolder% /S /Q 
echo.
echo.
echo Your %ST2% settings have been deleted.
pause