Functions/GenXdev.Helpers/Import-GenXdevModules.ps1

<##############################################################################
Part of PowerShell module : GenXdev.Helpers
Original cmdlet filename : Import-GenXdevModules.ps1
Original author : René Vaessen / GenXdev
Version : 1.270.2025
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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.
################################################################################>

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<#
.SYNOPSIS
Imports all GenXdev PowerShell modules into the global scope.
 
.DESCRIPTION
Scans the parent directory for GenXdev modules and imports each one into the
global scope. Uses location stack management to preserve the working directory
and provides visual feedback for successful and failed imports. Tracks function
count changes during the import process.
 
.PARAMETER DebugFailedModuleDefinitions
When enabled, provides detailed debug output for modules that fail to import.
 
.EXAMPLE
Import-GenXdevModules -DebugFailedModuleDefinitions
Imports modules with debug output for failures
 
.EXAMPLE
reloadgenxdev
Imports all modules using the alias
#>

function Import-GenXdevModules {

    [CmdletBinding()]
    [System.Diagnostics.CodeAnalysis.SuppressMessageAttribute(
        'PSUseSingularNouns', ''
    )]
    [Alias('reloadgenxdev')]
    ################################################################################
    param(
        [Parameter(
            Mandatory = $false,
            HelpMessage = 'Enable debug output for failed module definitions'
        )]
        [Switch] $DebugFailedModuleDefinitions
    )
    ################################################################################

    begin {

        # store current location for later restoration
        Microsoft.PowerShell.Utility\Write-Verbose 'Saving current location to location stack'
        Microsoft.PowerShell.Management\Push-Location

        # prepare console output variables
        $esc = [char]0x1b
        Microsoft.PowerShell.Utility\Write-Output (
            "$esc[36m$('## Reloading genXdev..'.PadRight([Console]::WindowWidth - 1, ' '))" +
            "$esc[0m"
        )

        # capture initial function count
        [int] $functionCountBefore = @(GenXdev.Helpers\Get-GenXDevCmdlet).Length
    }


    process {

        try {
            # navigate to modules parent directory
            Microsoft.PowerShell.Utility\Write-Verbose 'Changing to parent module directory'
            Microsoft.PowerShell.Management\Set-Location -LiteralPath "$PSScriptRoot\..\..\..\.."

            # find and process each genxdev module
            Microsoft.PowerShell.Utility\Write-Verbose 'Scanning for GenXdev modules'
            Microsoft.PowerShell.Management\Get-ChildItem -LiteralPath '.\' -Filter "GenXdev*" -dir |
                Microsoft.PowerShell.Core\ForEach-Object {

                    $name = $PSItem.Name
                    try {
                        # attempt module import
                        Microsoft.PowerShell.Utility\Write-Verbose "Importing module: $name"
                        $importError = $null

                        $null = Microsoft.PowerShell.Core\Import-Module -Name $name `
                            -Scope Global `
                            -ErrorVariable ImportError `
                            -Force

                        if (($null -ne $importError) -and ($importError.Length -gt 0)) {
                            throw ($ImportError | Microsoft.PowerShell.Utility\ConvertTo-Json -Depth 4 -ErrorAction SilentlyContinue -WarningAction SilentlyContinue)
                        }

                        # show success message
                        Microsoft.PowerShell.Utility\Write-Output (
                            "$esc[32m$("- [✅] $name".PadRight([Console]::WindowWidth - 1, ' '))" +
                            "$esc[0m"
                        )
                    }
                    catch {
                        if ($DebugFailedModuleDefinitions) {
                            # debug mode: validate and retry import
                            GenXdev.Coding\Assert-ModuleDefinition -ModuleName $name
                            $importError = $null

                            $null = Microsoft.PowerShell.Core\Import-Module $name `
                                -Scope Global `
                                -ErrorVariable ImportError `
                                -Force

                            if (($null -ne $importError) -and ($importError.Length -gt 0)) {
                                Microsoft.PowerShell.Utility\Write-Output (
                                    "$esc[91m$("- [❌] $importError".PadRight(
                                [Console]::WindowWidth - 1, ' '
                            ))$esc[0m"

                                )
                            }
                        }
                        else {
                            # show failure message
                            Microsoft.PowerShell.Utility\Write-Verbose "Failed to import module: $name"
                            Microsoft.PowerShell.Utility\Write-Output (
                                "$esc[91m$("- [❌] $name".PadRight(
                            [Console]::WindowWidth - 1, ' '
                        ))$esc[0m"

                            )
                        }
                    }
                }
        }
        finally {
            # restore original location
            Microsoft.PowerShell.Utility\Write-Verbose 'Restoring original location'
            Microsoft.PowerShell.Management\Pop-Location
        }
    }

    end {

        # calculate and display function count changes
        [int] $functionCountAfter = @(GenXdev.Helpers\Get-GenXDevCmdlet).Length
        $functionsAdded = $functionCountAfter - $functionCountBefore

        $text = $functionsAdded -lt 0 ? (
            ", removed $($functionsAdded * -1) functions"
        ) : (
            $functionsAdded -eq 0 ? '' : ", added $functionsAdded functions"
        )

        Microsoft.PowerShell.Utility\Write-Output (
            "$esc[36m$("## Reloaded genXdev$text".PadRight(
                [Console]::WindowWidth - 1, ' '
            ))$esc[0m"

        )
    }
}