Functions/GenXdev.AI/Set-GenXdevAICommandNotFoundAction.ps1
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Part of PowerShell module : GenXdev.AI Original cmdlet filename : Set-GenXdevAICommandNotFoundAction.ps1 Original author : René Vaessen / GenXdev Version : 1.270.2025 ################################################################################ MIT License Copyright 2021-2025 GenXdev Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ################################################################################> ############################################################################### <# .SYNOPSIS Sets up custom command not found handling with AI assistance. .DESCRIPTION Configures PowerShell to handle unknown commands by either navigating to directories or using AI to interpret user intent. The handler first tries any existing command not found handler, then checks if the command is a valid path for navigation, and finally offers AI assistance for unknown commands. .EXAMPLE Set-GenXdevAICommandNotFoundAction #> function Set-GenXdevAICommandNotFoundAction { [CmdletBinding(SupportsShouldProcess)] param() begin { Microsoft.PowerShell.Utility\Write-Verbose 'Starting Set-GenXdevAICommandNotFoundAction' # store reference to existing handler if it's not already our handler $script:originalHandler = $null $currentHandler = $ExecutionContext.InvokeCommand.CommandNotFoundAction # check if handler is already installed if ($null -ne $currentHandler) { $handlerString = $currentHandler.ToString() if ($handlerString.Contains('Do you want AI to figure out')) { Microsoft.PowerShell.Utility\Write-Verbose 'AI Command handler already installed - exiting' return } $script:originalHandler = $currentHandler Microsoft.PowerShell.Utility\Write-Verbose 'Stored original command handler for chaining' } } process { if (-not $PSCmdlet.ShouldProcess('Command not found handling', 'Set AI assistance handler')) { return } try { # Add flag to prevent recursion $script:insideCommandHandler = $false Microsoft.PowerShell.Utility\Write-Verbose 'Configuring new CommandNotFoundAction handler' # define the command not found action handler $ExecutionContext.InvokeCommand.CommandNotFoundAction = { param($CommandName, $CommandLookupEventArgs) # prevent recursion if ($script:insideCommandHandler) { Microsoft.PowerShell.Utility\Write-Debug "Preventing recursive call for command: $CommandName" return } $script:insideCommandHandler = $true $origPSDebugPreference = $PSDebugPreference $origErrorActionPreference = $ErrorActionPreference $origVerbosePreference = $VerbosePreference $origWarningPreference = $WarningPreference try { # suppress unnecessary output during handler execution $PSDebugPreference = 'continue' $ErrorActionPreference = 'SilentlyContinue' $VerbosePreference = 'SilentlyContinue' $WarningPreference = 'SilentlyContinue' # skip .NET method calls if ($CommandName -match '^\[.*\]::') { return } # try original handler first if ($null -ne $script:originalHandler) { try { & $script:originalHandler $CommandName $CommandLookupEventArgs if ($CommandLookupEventArgs.StopSearch) { return } } catch { Microsoft.PowerShell.Utility\Write-Debug "Original handler failed: $_" } } } finally { # restore original preferences $PSDebugPreference = $origPSDebugPreference $ErrorActionPreference = $origErrorActionPreference $VerbosePreference = $origVerbosePreference $WarningPreference = $origWarningPreference $script:insideCommandHandler = $false } # handle directory navigation if (Microsoft.PowerShell.Management\Test-Path -LiteralPath $CommandName -PathType Container) { $CommandLookupEventArgs.CommandScriptBlock = { Microsoft.PowerShell.Management\Set-Location -LiteralPath $CommandName Microsoft.PowerShell.Management\Get-ChildItem }.GetNewClosure() $CommandLookupEventArgs.StopSearch = $true return } # skip internal and get- commands if ($CommandLookupEventArgs.CommandOrigin -eq 'Internal' -or $CommandName -like 'get-*') { return } if ($CommandName -like '-' -or $CommandName -like "cd -" -or $CommandName -like "Set-Location +") { $CommandLookupEventArgs.CommandScriptBlock = { Microsoft.PowerShell.Management\Set-Location "-" } $CommandLookupEventArgs.StopSearch = $true return } if ($CommandName -like '+' -or $CommandName -like "cd +" -or $CommandName -like "Set-Location -") { $CommandLookupEventArgs.CommandScriptBlock = { Microsoft.PowerShell.Management\Set-Location "+" } $CommandLookupEventArgs.StopSearch = $true return } # configure AI assistance $CommandLookupEventArgs.CommandScriptBlock = { $userChoice = $host.ui.PromptForChoice( 'Command not found', 'Do you want AI to figure out what you want?', @('&Nah', '&Yes'), 0) if ($userChoice -eq 0) { return } GenXdev.Windows\Send-Key ($MyInvocation.line) -Escape Microsoft.PowerShell.Utility\Write-Host -ForegroundColor Yellow 'What did you want to do?' [System.Console]::Write('> ') $userIntent = [System.Console]::ReadLine() Microsoft.PowerShell.Utility\Write-Host -ForegroundColor Green 'Ok, hold on a sec..' # prepare AI hint $aiPrompt = ('Generate a Powershell commandline that would ' + 'be what user might have meant, but what triggered the ' + "`$ExecutionContext.InvokeCommand.CommandNotFoundAction " + "with her prompt being: $userIntent") GenXdev.AI\Invoke-AIPowershellCommand $aiPrompt }.GetNewClosure() $CommandLookupEventArgs.StopSearch = $true } } catch { Microsoft.PowerShell.Utility\Write-Error "Failed to set up command not found handler: $_" } } end { Microsoft.PowerShell.Utility\Write-Verbose 'Command not found handler configuration completed' } } |