Goto

1.9.9

Goto.psm1

$script:GotoDataPath = Join-Path -Path $env:APPDATA -ChildPath 'PowerShell\Goto'
$script:AliasFilePath = Join-Path -Path $script:GotoDataPath -ChildPath "GotoAliases.xml"
$script:UpdateInfoFile = Join-Path -Path $script:GotoDataPath -ChildPath "UpdateInfo.xml"
$script:BackupFilePath = Join-Path -Path $script:GotoDataPath -ChildPath "GotoAliases.bak"

$Global:DirectoryAliases = @{}

function Backup-Aliases {
    if (Test-Path $script:AliasFilePath) {
        Copy-Item -Path $script:AliasFilePath -Destination $script:BackupFilePath -Force
        Write-Host "Aliases backed up to $script:BackupFilePath" -ForegroundColor Green
    }
}

function Restore-AliasesFromBackup {
    if (Test-Path $script:BackupFilePath) {
        Copy-Item -Path $script:BackupFilePath -Destination $script:AliasFilePath -Force
        Write-Host "Aliases restored from backup." -ForegroundColor Green
        Import-Aliases
    }
    else {
        Write-Warning "No backup file found. Unable to restore aliases."
    }
}

function Update-GotoModule {
    try {
        Backup-Aliases
        $currentAliases = $Global:DirectoryAliases.Clone()

        $currentModule = Get-InstalledModule -Name Goto -ErrorAction Stop
        $updateInfo = Test-ForUpdates

        if ($updateInfo) {
            Write-Host "Current Goto version: $($updateInfo.CurrentVersion)" -ForegroundColor Cyan
            Write-Host "New version available: $($updateInfo.NewVersion)" -ForegroundColor Green

            $confirmation = Read-Host "Do you want to update now? (Y/N)"
            if ($confirmation -eq 'Y') {
                # Let's try to use Update-Module
                try {
                    Update-Module -Name Goto -Force -ErrorAction Stop
                    $updatedModule = Get-InstalledModule -Name Goto

                    if ($updatedModule.Version -gt $currentModule.Version) {
                        Write-Host "Goto has been successfully updated to version $($updatedModule.Version)!" -ForegroundColor Green

                        $Global:DirectoryAliases = $currentAliases
                        Save-Aliases
                        Write-Host "Aliases have been restored." -ForegroundColor Green

                        Initialize-GotoEnvironment
                        Write-Host "Please restart your PowerShell session to use the new version." -ForegroundColor Yellow
                    }
                    else {
                        throw "Update failed: Version did not change"
                    }
                }
                catch {
                    Write-Host "Error during Update-Module. Trying alternative update method..." -ForegroundColor Yellow

                    # Alternative update method
                    try {
                        Uninstall-Module -Name Goto -AllVersions -Force -ErrorAction Stop
                        Install-Module -Name Goto -Force -AllowClobber -ErrorAction Stop

                        $updatedModule = Get-InstalledModule -Name Goto
                        if ($updatedModule.Version -gt $currentModule.Version) {
                            Write-Host "Goto has been successfully updated to version $($updatedModule.Version)!" -ForegroundColor Green

                            $Global:DirectoryAliases = $currentAliases
                            Save-Aliases
                            Write-Host "Aliases have been restored." -ForegroundColor Green

                            Initialize-GotoEnvironment
                            Write-Host "Please restart your PowerShell session to use the new version." -ForegroundColor Yellow
                        }
                        else {
                            throw "Alternative update failed: Version did not change"
                        }
                    }
                    catch {
                        throw "Both update methods failed. Error: $_"
                    }
                }
            }
            else {
                Write-Host "Update cancelled." -ForegroundColor Yellow
            }
        }
        else {
            Write-Host "Goto is already at the latest version ($($currentModule.Version))." -ForegroundColor Green
        }
    }
    catch {
        Write-Host "An error occurred while updating Goto: $_" -ForegroundColor Red
        Write-Host "Error details: $($_.Exception.Message)" -ForegroundColor Red
        Write-Host "Stack trace: $($_.ScriptStackTrace)" -ForegroundColor Red
        Restore-AliasesFromBackup
    }
}

function Test-ForUpdates {
    $currentModule = Get-InstalledModule -Name Goto -ErrorAction SilentlyContinue
    if (-not $currentModule) {
        return $null
    }

    try {
        $onlineModule = Find-Module -Name Goto -Repository PSGallery -ErrorAction Stop
        $newVersion = $onlineModule.Version
    }
    catch {
        Write-Warning "Unable to check for updates. Please check your internet connection and try again later."
        return $null
    }

    if ($newVersion -gt $currentModule.Version) {
        return @{
            CurrentVersion = $currentModule.Version
            NewVersion     = $newVersion
        }
    }

    return $null
}

function Initialize-GotoEnvironment {
    if (-not (Test-Path -Path $script:GotoDataPath)) {
        New-Item -Path $script:GotoDataPath -ItemType Directory -Force | Out-Null
    }
    Import-Aliases
    if (-not (Test-Path -Path $script:AliasFilePath)) {
        Save-Aliases
    }
    $profileContent = @"
 
# Import Goto module
Import-Module Goto -DisableNameChecking
"@
    if (-not (Test-Path -Path $PROFILE)) {
        New-Item -Path $PROFILE -ItemType File -Force | Out-Null
    }
    $currentProfileContent = Get-Content -Path $PROFILE -Raw -ErrorAction SilentlyContinue
    if ($currentProfileContent -notmatch [regex]::Escape($profileContent)) {
        Add-Content -Path $PROFILE -Value $profileContent
        Write-Host "Goto module import and WinGet error handling have been added to your PowerShell profile." -ForegroundColor Green
        Write-Host "Please restart your PowerShell session or run '. `$PROFILE' to apply changes." -ForegroundColor Yellow
    }

    # Asynchronous verification of updates every 30 days
    $lastCheckFile = Join-Path $script:GotoDataPath "LastUpdateCheck.txt"
    $lastCheck = if (Test-Path $lastCheckFile) { Get-Content $lastCheckFile } else { "1970-01-01" }
    if ((Get-Date) -gt ([DateTime]::Parse($lastCheck).AddDays(30))) {
        Start-Job -ScriptBlock {
            Import-Module Goto
            $updateInfo = Test-ForUpdates
            if ($updateInfo) {
                Write-Host "New version $($updateInfo.NewVersion) of Goto is available. Your version: $($updateInfo.CurrentVersion). Run 'goto -Update' to update." -ForegroundColor Yellow
            }
            Get-Date -Format "yyyy-MM-dd" | Set-Content $using:lastCheckFile
        } | Out-Null
    }
}


function Import-Aliases {
    if (Test-Path $script:AliasFilePath) {
        try {
            $Global:DirectoryAliases = Import-Clixml -Path $script:AliasFilePath
            $Global:DirectoryAliases.GetEnumerator() | ForEach-Object {
                $alias = $_.Key
                $path = $_.Value
                Set-Alias -Name $alias -Value (Get-Command -Name Set-Location) -Force -Scope Global
                Set-Item -Path "Alias:$alias" -Value $path -Force
            }
        }
        catch {
            Write-Warning "Failed to load aliases. Recreating alias file."
            $Global:DirectoryAliases = @{}
            Save-Aliases
        }
    }
    else {
        $Global:DirectoryAliases = @{}
        Save-Aliases
    }
}

function Save-Aliases {
    try {
        $Global:DirectoryAliases | Export-Clixml -Path $script:AliasFilePath -ErrorAction Stop
        Import-Aliases
    }
    catch {
        Write-Warning "Failed to save aliases. Error: $_"
    }
}

function _goto_print_similar {
    param(
        [string]$aliasInput,
        [string]$action = "navigate to",
        [switch]$SuppressNavigation
    )

    $normalizedInput = $aliasInput.ToLower()

    function Get-MatchScore {
        param (
            [string]$alias,
            [string]$searchTerm
        )
        $alias = $alias.ToLower()
        $score = 0
        $lastIndex = -1
        $matchedChars = 0

        for ($i = 0; $i -lt $searchTerm.Length; $i++) {
            $index = $alias.IndexOf($searchTerm[$i], $lastIndex + 1)
            if ($index -ne -1) {
                $score += 100 - $index
                if ($index -eq $lastIndex + 1) {
                    $score += 50
                }
                $lastIndex = $index
                $matchedChars++
            }
        }

        if ($matchedChars -eq $searchTerm.Length) {
            if ($alias.StartsWith($searchTerm)) {
                $score += 1000
            }
            return $score
        }
        return 0
    }

    $matchedAliases = @()

    foreach ($entry in $Global:DirectoryAliases.GetEnumerator()) {
        $alias = $entry.Key
        $path = $entry.Value
        $score = Get-MatchScore -alias $alias -searchTerm $normalizedInput
        if ($score -gt 0) {
            $matchedAliases += New-Object PSObject -Property @{
                Alias = $alias
                Path  = $path
                Score = $score
            }
        }
    }

    $matchedAliases = @($matchedAliases | Sort-Object -Property Score -Descending)

    if ($matchedAliases.Count -eq 1) {
        $selectedAlias = $matchedAliases[0].Alias
        $path = $matchedAliases[0].Path
        if (-not $SuppressNavigation) {
            if (Test-Path $path) {
                Write-Host "Only one matching alias found: '$selectedAlias' -> '$path'. Navigating..." -ForegroundColor Green
                Set-Location $path
            }
            else {
                Write-Host "The path '$path' for alias '$selectedAlias' does not exist." -ForegroundColor Red
            }
        }
        return $selectedAlias
    }
    elseif ($matchedAliases.Count -gt 1) {
        Write-Host "Did you mean one of these? Type the number to $action, or press ENTER to cancel:" -ForegroundColor Yellow
        Write-Host ""

        $maxAliasLength = ($matchedAliases | ForEach-Object { $_.Alias.Length } | Measure-Object -Maximum).Maximum
        $numberWidth = $matchedAliases.Count.ToString().Length

        for ($i = 0; $i -lt $matchedAliases.Count; $i++) {
            $alias = $matchedAliases[$i].Alias
            $path = $matchedAliases[$i].Path
            $paddedAlias = $alias.PadRight($maxAliasLength)
            $paddedNumber = ($i + 1).ToString().PadLeft($numberWidth)

            Write-Host "[" -NoNewline -ForegroundColor DarkGray
            Write-Host $paddedNumber -NoNewline -ForegroundColor Cyan
            Write-Host "]:" -NoNewline -ForegroundColor DarkGray
            Write-Host " $paddedAlias" -NoNewline -ForegroundColor Green
            Write-Host " -> " -NoNewline -ForegroundColor DarkGray
            Write-Host $path -ForegroundColor Yellow
        }

        Write-Host ""
        $choice = Read-Host "Enter your choice (1-$($matchedAliases.Count))"
        if ([string]::IsNullOrEmpty($choice)) {
            Write-Host "No selection made. No action taken." -ForegroundColor Red
        }
        elseif ($choice -match '^\d+$' -and [int]$choice -ge 1 -and [int]$choice -le $matchedAliases.Count) {
            $selectedAlias = $matchedAliases[[int]$choice - 1].Alias
            $path = $matchedAliases[[int]$choice - 1].Path
            if (Test-Path $path) {
                Write-Host "Navigating to '$selectedAlias' -> '$path'." -ForegroundColor Green
                Set-Location $path
            }
            else {
                Write-Host "The path '$path' for alias '$selectedAlias' does not exist." -ForegroundColor Red
            }
            return $selectedAlias
        }
    }
    return $null
}


function goto {
    [CmdletBinding(DefaultParameterSetName = 'Navigate')]
    param(
        [Parameter(ParameterSetName = 'Navigate', Position = 0)]
        [Parameter(ParameterSetName = 'Unregister', Position = 1)]
        [Parameter(ParameterSetName = 'Expand', Position = 1)]
        [Parameter(ParameterSetName = 'Push', Position = 1)]
        [Parameter(ParameterSetName = 'Register', Position = 1)]
        [string]$Alias,

        [Parameter(ParameterSetName = 'Register', Mandatory = $true)]
        [Alias('r')]
        [switch]$Register,

        [Parameter(ParameterSetName = 'Unregister', Mandatory = $true)]
        [Alias('u')]
        [switch]$Unregister,

        [Parameter(ParameterSetName = 'Push', Mandatory = $true)]
        [Alias('p')]
        [switch]$Push,

        [Parameter(ParameterSetName = 'Pop', Mandatory = $true)]
        [Alias('o')]
        [switch]$Pop,

        [Parameter(ParameterSetName = 'List', Mandatory = $true)]
        [Alias('l')]
        [switch]$List,

        [Parameter(ParameterSetName = 'Expand', Mandatory = $true)]
        [Alias('x')]
        [switch]$Expand,

        [Parameter(ParameterSetName = 'Cleanup', Mandatory = $true)]
        [Alias('c')]
        [switch]$Cleanup,

        [Parameter(ParameterSetName = 'Help', Mandatory = $true)]
        [Alias('h')]
        [switch]$Help,

        [Parameter(ParameterSetName = 'Update', Mandatory = $true)]
        [switch]$Update,

        [Parameter(ParameterSetName = 'Version', Mandatory = $true)]
        [Alias('v')]
        [switch]$Version,

        [Parameter(ParameterSetName = 'Register', Position = 2)]
        [Parameter(ParameterSetName = 'Navigate', Position = 1)]
        [string]$Path
    )

    switch ($PSCmdlet.ParameterSetName) {
        'Register' {
            if (-not [string]::IsNullOrWhiteSpace($Alias) -and -not [string]::IsNullOrWhiteSpace($Path)) {
                if (Test-Path $Path) {
                    $resolvedPath = Resolve-Path -Path $Path | Select-Object -ExpandProperty Path
                    $Global:DirectoryAliases[$Alias] = $resolvedPath
                    New-Item -Path Function:\ -Name "Global:$Alias" -Value { Set-Location $resolvedPath } | Out-Null
                    Write-Host "Alias '$Alias' registered for path '$resolvedPath'." -ForegroundColor Green
                    Save-Aliases
                }
                else {
                    Write-Host "The specified path does not exist." -ForegroundColor Red
                }
            }
            else {
                Write-Host "Alias name or path not specified. Usage: goto -r <alias_name> <path>" -ForegroundColor Yellow
            }
        }
        'Unregister' {
            if (-not $Alias) {
                Write-Host "Usage: goto u <alias>" -ForegroundColor Yellow
                return
            }

            if ($Global:DirectoryAliases.ContainsKey($Alias)) {
                $selectedAlias = $Alias
            }
            else {
                $selectedAlias = _goto_print_similar -aliasInput $Alias -action "unregister" -SuppressNavigation
            }

            if ($selectedAlias) {
                Write-Host "Are you sure you want to unregister the alias '$selectedAlias' which points to '$($Global:DirectoryAliases[$selectedAlias])'? [Y/N]: " -ForegroundColor Yellow -NoNewline
                $confirmation = Read-Host
                if ($confirmation -eq 'Y') {
                    $Global:DirectoryAliases.Remove($selectedAlias)
                    Remove-Item -Path "Function:$selectedAlias" -ErrorAction SilentlyContinue
                    Write-Host "Alias '$selectedAlias' unregistered." -ForegroundColor Green
                    Save-Aliases
                }
                else {
                    Write-Host "Unregistration cancelled." -ForegroundColor Yellow
                }
            }
        }
        'List' {
            try {
                if ($Global:DirectoryAliases.Count -eq 0) {
                    Write-Host "No aliases registered." -ForegroundColor Yellow
                    return
                }
                $maxAliasLength = ($Global:DirectoryAliases.Keys | ForEach-Object { $_.Length } | Measure-Object -Maximum).Maximum
                $maxPathLength = ($Global:DirectoryAliases.Values | ForEach-Object { $_.Length } | Measure-Object -Maximum).Maximum
                Write-Host "`nRegistered Aliases:" -ForegroundColor Cyan
                $separatorLine = "-" * (4 + $maxAliasLength + 4 + $maxPathLength)
                Write-Host $separatorLine -ForegroundColor DarkGray
                $Global:DirectoryAliases.GetEnumerator() | Sort-Object Name | ForEach-Object {
                    $aliasDisplay = $_.Key.PadRight($maxAliasLength)
                    $pathDisplay = $_.Value.PadRight($maxPathLength)
                    Write-Host " " -NoNewline
                    Write-Host $aliasDisplay -NoNewline -ForegroundColor Green
                    Write-Host " -> " -NoNewline -ForegroundColor DarkGray
                    Write-Host $pathDisplay -ForegroundColor Yellow
                }
                Write-Host $separatorLine -ForegroundColor DarkGray
            }
            catch {
                Write-Host "An error occurred while listing aliases. Please try again or contact support if the issue persists." -ForegroundColor Red
            }
        }
        'Expand' {
            if (-not $Alias) {
                Write-Host "Usage: goto x <alias>" -ForegroundColor Yellow
                return
            }

            if ($Global:DirectoryAliases.ContainsKey($Alias)) {
                $selectedAlias = $Alias
                $path = $Global:DirectoryAliases[$Alias]
            }
            else {
                $selectedAlias = _goto_print_similar -aliasInput $Alias -action "expand" -SuppressNavigation
            }

            if ($selectedAlias) {
                $path = $Global:DirectoryAliases[$selectedAlias]
                Write-Host "Alias: " -ForegroundColor Cyan -NoNewline
                Write-Host "$selectedAlias" -ForegroundColor Green
                Write-Host "Path: " -ForegroundColor Cyan -NoNewline
                Write-Host "$path" -ForegroundColor Yellow
                if (Test-Path $path) {
                    Write-Host "Status:" -ForegroundColor Cyan -NoNewline
                    Write-Host " Path exists" -ForegroundColor Green
                }
                else {
                    Write-Host "Status:" -ForegroundColor Cyan -NoNewline
                    Write-Host " Path does not exist" -ForegroundColor Red
                }
            }
            else {
                Write-Host "No matching alias found for '$Alias'." -ForegroundColor Red
            }
        }
        'Cleanup' {
            $invalidAliases = $Global:DirectoryAliases.GetEnumerator() | Where-Object { -not (Test-Path $_.Value) }

            if ($invalidAliases.Count -eq 0) {
                Write-Host "All aliases point to valid paths. No cleanup needed." -ForegroundColor Green
                return
            }

            Write-Host "The following aliases point to non-existent paths:" -ForegroundColor Yellow
            foreach ($invalidAlias in $invalidAliases) {
                Write-Host " $($invalidAlias.Key) -> $($invalidAlias.Value)" -ForegroundColor Red
            }

            $confirmation = Read-Host "Do you want to remove these aliases? [Y/N]"
            if ($confirmation -eq 'Y') {
                foreach ($invalidAlias in $invalidAliases) {
                    $Global:DirectoryAliases.Remove($invalidAlias.Key)
                    Remove-Item -Path "Function:$($invalidAlias.Key)" -ErrorAction SilentlyContinue
                    Write-Host "Removed alias '$($invalidAlias.Key)'." -ForegroundColor Green
                }
                Save-Aliases
                Write-Host "Cleanup complete. Removed $(($invalidAliases | Measure-Object).Count) invalid aliases." -ForegroundColor Green
            }
            else {
                Write-Host "Cleanup cancelled. No aliases were removed." -ForegroundColor Yellow
            }
        }
        'Help' {
            function Show-Help {
                $gotoAsciiArt = @"
_____/\\\\\\\\\\\\___________________________________________
 ___/\\\//////////____________________________________________
  __/\\\_______________________________/\\\____________________
   _\/\\\____/\\\\\\\_____/\\\\\_____/\\\\\\\\\\\_____/\\\\\____
    _\/\\\___\/////\\\___/\\\///\\\__\////\\\////____/\\\///\\\__
     _\/\\\_______\/\\\__/\\\__\//\\\____\/\\\_______/\\\__\//\\\_
      _\/\\\_______\/\\\_\//\\\__/\\\_____\/\\\_/\\__\//\\\__/\\\__
       _\//\\\\\\\\\\\\/___\///\\\\\/______\//\\\\\____\///\\\\\/___
        __\////////////_______\/////_________\/////_______\/////_____
"@
                $lines = $gotoAsciiArt -split "`n"

                function Write-ColoredChar {
                    param($char, $color)
                    if ($char -eq '_') {
                        Write-Host $char -ForegroundColor DarkGray -NoNewline
                    }
                    else {
                        Write-Host $char -ForegroundColor $color -NoNewline
                    }
                }

                $colors = @{
                    DR = [System.ConsoleColor]::DarkMagenta
                    R  = [System.ConsoleColor]::Red
                    DG = [System.ConsoleColor]::DarkGreen
                    G  = [System.ConsoleColor]::Green
                    DY = [System.ConsoleColor]::DarkYellow
                    Y  = [System.ConsoleColor]::Yellow
                    DC = [System.ConsoleColor]::DarkBlue
                    C  = [System.ConsoleColor]::Cyan
                }

                $colorPatterns = @(
                    @("DR", "R", "R", "R", "R", "R", "R", "R", "R", "R", "R", "R", "R"),
                    @("DR", "R", "R", "R", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR"),
                    @("DR", "R", "R", "R", "DG", "G", "G", "G"),
                    @("DR", "DR", "R", "R", "R", "DR", "R", "R", "R", "R", "R", "R", "R", "DY", "Y", "Y", "Y", "Y", "Y", "DG", "G", "G", "G", "G", "G", "G", "G", "G", "G", "G", "G", "DC", "C", "C", "C", "C", "C"),
                    @("DR", "DR", "R", "R", "R", "DR", "DR", "DR", "DR", "DR", "DR", "R", "R", "R", "DY", "Y", "Y", "Y", "DY", "DY", "DY", "Y", "Y", "Y", "DG", "DG", "DG", "DG", "DG", "G", "G", "G", "DG", "DG", "DG", "DG", "DC", "C", "C", "C", "DC", "DC", "DC", "C", "C", "C"),
                    @("DR", "DR", "R", "R", "R", "DR", "DR", "R", "R", "R", "DY", "Y", "Y", "Y", "DY", "DY", "DY", "Y", "Y", "Y", "DG", "DG", "G", "G", "G", "DC", "C", "C", "C", "DC", "DC", "DC", "C", "C", "C"),
                    @("DR", "DR", "R", "R", "R", "DR", "DR", "R", "R", "R", "DY", "DY", "DY", "Y", "Y", "Y", "DY", "Y", "Y", "Y", "DG", "DG", "G", "G", "G", "DG", "G", "G", "DC", "DC", "DC", "C", "C", "C", "DC", "C", "C", "C"),
                    @("DR", "DR", "DR", "R", "R", "R", "R", "R", "R", "R", "R", "R", "R", "R", "R", "DR", "DY", "DY", "DY", "DY", "Y", "Y", "Y", "Y", "Y", "DY", "DG", "DG", "DG", "G", "G", "G", "G", "G", "DC", "DC", "DC", "DC", "C", "C", "C", "C", "C", "DC"),
                    @("DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DR", "DY", "DY", "DY", "DY", "DY", "DY", "DG", "DG", "DG", "DG", "DG", "DG", "DC", "DC", "DC", "DC", "DC", "DC")
                )

                for ($i = 0; $i -lt $lines.Count; $i++) {
                    $line = $lines[$i]
                    $pattern = $colorPatterns[$i]
                    $colorIndex = 0

                    foreach ($char in $line.ToCharArray()) {
                        if ($char -eq '_') {
                            Write-ColoredChar $char "DarkGray"
                        }
                        elseif ($char -in '/', '\', '*') {
                            Write-ColoredChar $char $colors[$pattern[$colorIndex]]
                            $colorIndex = ($colorIndex + 1) % $pattern.Count
                        }
                        else {
                            Write-Host $char -NoNewline
                        }
                    }
                    Write-Host ""
                }

                Write-Host "`nUsage: " -ForegroundColor Cyan -NoNewline
                Write-Host "goto [<option>] <alias> [<directory>]`n" -ForegroundColor White

                Write-Host "Default usage:" -ForegroundColor Cyan
                Write-Host " goto <alias> " -ForegroundColor Yellow -NoNewline
                Write-Host "- changes to the directory registered for the given alias`n" -ForegroundColor White

                Write-Host "Partial Alias Matching:" -ForegroundColor Cyan
                Write-Host " You can use partial aliases. For example, if you have an alias 'documents'," -ForegroundColor White
                Write-Host " you can use 'goto doc' to match it. If multiple aliases match, you'll be" -ForegroundColor White
                Write-Host " prompted to choose the correct one.`n" -ForegroundColor White

                Write-Host "OPTIONS:" -ForegroundColor Cyan
                $options = @(
                    @{Option = "-r, -Register"; Desc = "registers an alias"; Usage = "goto -r|-Register <alias> <directory>" },
                    @{Option = "-u, -Unregister"; Desc = "unregisters an alias"; Usage = "goto -u|-Unregister <alias>" },
                    @{Option = "-p, -Push"; Desc = "pushes the current directory onto the stack, then performs goto"; Usage = "goto -p|-Push <alias>" },
                    @{Option = "-o, -Pop"; Desc = "pops the top directory from the stack, then changes to that directory"; Usage = "goto -o|-Pop" },
                    @{Option = "-l, -List"; Desc = "lists aliases"; Usage = "goto -l|-List" },
                    @{Option = "-x, -Expand"; Desc = "expands an alias"; Usage = "goto -x|-Expand <alias>" },
                    @{Option = "-c, -Cleanup"; Desc = "cleans up non existent directory aliases"; Usage = "goto -c|-Cleanup" },
                    @{Option = "-h, -Help"; Desc = "prints this help"; Usage = "goto -h|-Help" },
                    @{Option = "-v, -Version"; Desc = "displays the version of the goto module"; Usage = "goto -v|-Version" },
                    @{Option = "-Update"; Desc = "updates the goto module"; Usage = "goto -Update" }
                )

                foreach ($opt in $options) {
                    Write-Host " $($opt.Option)" -ForegroundColor Green
                    Write-Host " $($opt.Desc)" -ForegroundColor White
                    Write-Host " Usage: " -ForegroundColor DarkGray -NoNewline
                    Write-Host "$($opt.Usage)`n" -ForegroundColor Yellow
                }
            }
            Show-Help
        }

        'Push' {
            $currentPath = (Get-Location).Path
            Push-Location

            if ($Global:DirectoryAliases.ContainsKey($Alias)) {
                $path = $Global:DirectoryAliases[$Alias]
                Write-Host "Pushed current directory '$currentPath' to stack and moved to alias '$Alias' at path '$path'." -ForegroundColor Green
                Set-Location $path
            }
            else {
                if (-not [string]::IsNullOrWhiteSpace($Alias)) {
                    $selectedAlias = _goto_print_similar -aliasInput $Alias -SuppressNavigation
                    if ($selectedAlias) {
                        $path = $Global:DirectoryAliases[$selectedAlias]
                        Write-Host "Pushed current directory '$currentPath' to stack and moved to alias '$selectedAlias' at path '$path'." -ForegroundColor Green
                        Set-Location $path
                    }
                    else {
                        Pop-Location
                        Write-Host "No matching alias found. Current directory was not changed." -ForegroundColor Yellow
                    }
                }
                else {
                    Write-Host "Pushed current directory '$currentPath' to stack." -ForegroundColor Yellow
                }
            }
        }
        'Pop' {
            if ((Get-Location -Stack).Count -eq 0) {
                Write-Host "The location stack is empty." -ForegroundColor Yellow
                return
            }
            $previousPath = (Get-Location).Path
            Pop-Location
            $newPath = (Get-Location).Path
            if ($previousPath -ne $newPath) {
                Write-Host "Popped and moved from '$previousPath' to '$newPath'." -ForegroundColor Green
            }
            else {
                Write-Host "Already at the bottom of the location stack." -ForegroundColor Yellow
            }
        }
        'Version' {
            $moduleInfo = Get-Module Goto
            $moduleVersion = $moduleInfo.Version.ToString()
            Write-Host "goto version $moduleVersion"
        }
        'Update' {
            Update-GotoModule
        }
        'Navigate' {
            if (-not $Alias) {
                Show-Help
                return
            }
            if ($Global:DirectoryAliases.ContainsKey($Alias)) {
                $path = $Global:DirectoryAliases[$Alias]
                if (Test-Path $path) {
                    Write-Host "Exact match found. Navigating to '$Alias' -> '$path'." -ForegroundColor Green
                    Set-Location $path
                }
                else {
                    Write-Host "The path '$path' for alias '$Alias' does not exist." -ForegroundColor Red
                }
            }
            else {
                $selectedAlias = _goto_print_similar -aliasInput $Alias
                if (-not $selectedAlias) {
                    Write-Host "No matching alias found for '$Alias'." -ForegroundColor Red
                    Write-Host "Usage: goto [ <alias> | -r <alias> <path> | -u <alias> | -l | -x <alias> | -c | -p <alias> | -o | -v | -h | -Update ]" -ForegroundColor Yellow
                }
            }
        }
    }
}

# Initialization when loading module
Initialize-GotoEnvironment

# Asynchronous verification of updates
$updateCheckJob = Start-Job -ScriptBlock {
    param($GotoDataPath, $UpdateInfoFile)

    # I import the module inside the Job
    Import-Module Goto

    if (Test-Path $UpdateInfoFile) {
        $updateInfo = Import-Clixml -Path $UpdateInfoFile
        if (($null -eq $updateInfo.LastCheckTime) -or ((Get-Date) - $updateInfo.LastCheckTime).Days -ge 30) {
            Test-ForUpdates
        }
    }
    else {
        Test-ForUpdates
    }
} -ArgumentList $script:GotoDataPath, $script:UpdateInfoFile

# Register the ending event of the Job
Register-ObjectEvent -InputObject $updateCheckJob -EventName StateChanged -Action {
    if ($Event.SourceEventArgs.JobStateInfo.State -eq "Completed") {
        $result = Receive-Job -Job $Event.SourceJob
        if ($result) {
            Write-Host $result -ForegroundColor Yellow
        }
        Unregister-Event -SourceIdentifier $Event.SourceIdentifier
        Remove-Job -Job $Event.SourceJob
    }
} | Out-Null

# Export of functions
Export-ModuleMember -Function goto, Import-Aliases, Initialize-GotoEnvironment, Update-GotoModule, Save-Aliases

Register-ArgumentCompleter -CommandName 'goto' -ScriptBlock {
    param($commandName, $wordToComplete, $commandAst, $fakeBoundParameters)

    $commands = @{
        'r'      = 'Register'
        'u'      = 'Unregister'
        'l'      = 'List'
        'x'      = 'Expand'
        'c'      = 'Cleanup'
        'p'      = 'Push'
        'o'      = 'Pop'
        'v'      = 'Version'
        'h'      = 'Help'
        'Update' = 'Update'
    }

    $aliases = $Global:DirectoryAliases.Keys

    if ($wordToComplete.StartsWith('-')) {
        $commands.GetEnumerator() | Where-Object { $_.Key -like "$($wordToComplete.TrimStart('-'))*" -or $_.Value -like "$($wordToComplete.TrimStart('-'))*" } | ForEach-Object {
            [System.Management.Automation.CompletionResult]::new("-$($_.Value)", "-$($_.Value)", 'ParameterName', "Perform $($_.Value) operation")
        }
    }
    elseif ($fakeBoundParameters.ContainsKey('Unregister') -or $fakeBoundParameters.ContainsKey('u') -or
        $fakeBoundParameters.ContainsKey('Expand') -or $fakeBoundParameters.ContainsKey('x') -or
        $fakeBoundParameters.ContainsKey('Push') -or $fakeBoundParameters.ContainsKey('p')) {
        $aliases | Where-Object { $_ -like "$wordToComplete*" } | ForEach-Object {
            [System.Management.Automation.CompletionResult]::new($_, $_, 'ParameterValue', $_)
        }
    }
    else {
        $aliases | Where-Object { $_ -like "$wordToComplete*" } | ForEach-Object {
            [System.Management.Automation.CompletionResult]::new($_, $_, 'ParameterValue', $_)
        }
    }
}

#Export of CD functions for each Alias
$Global:DirectoryAliases.Keys | ForEach-Object {
    $aliasName = $_
    $aliasPath = $Global:DirectoryAliases[$aliasName]
    New-Item -Path Function:\ -Name "Global:cd$aliasName" -Value { Set-Location $aliasPath }.GetNewClosure() | Out-Null
    Export-ModuleMember -Function "cd$aliasName"
}