Functions/GenXdev.AI.Queries/Get-AIKnownFacesRootpath.ps1

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Part of PowerShell module : GenXdev.AI.Queries
Original cmdlet filename : Get-AIKnownFacesRootpath.ps1
Original author : René Vaessen / GenXdev
Version : 1.272.2025
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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
Gets the configured directory for face image files used in GenXdev.AI
operations.
 
.DESCRIPTION
This function retrieves the global face directory used by the GenXdev.AI
module for various face recognition and AI operations. It checks Global
variables first (unless SkipSession is specified), then falls back to
persistent preferences, and finally uses system defaults.
 
.PARAMETER FacesDirectory
Optional faces directory override. If specified, this directory will be
returned instead of retrieving from configuration.
 
.PARAMETER SessionOnly
Use alternative settings stored in session for AI preferences like Language,
Image collections, etc
 
.PARAMETER ClearSession
Clear the session setting (Global variable) before retrieving
 
.PARAMETER PreferencesDatabasePath
Database path for preference data files
 
.PARAMETER SkipSession
Dont use alternative settings stored in session for AI preferences like
Language, Image collections, etc
 
.EXAMPLE
Get-AIKnownFacesRootpath
 
Gets the currently configured faces directory from Global variables or
preferences.
 
.EXAMPLE
Get-AIKnownFacesRootpath -SkipSession
 
Gets the configured faces directory only from persistent preferences, ignoring
any session setting.
 
.EXAMPLE
Get-AIKnownFacesRootpath -ClearSession
 
Clears the session faces directory setting and then gets the directory from
persistent preferences.
 
.EXAMPLE
Get-AIKnownFacesRootpath "C:\MyFaces"
 
Returns the specified directory after expanding the path.
#>

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function Get-AIKnownFacesRootpath {

    [CmdletBinding()]
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSAvoidGlobalVars', '')]
    param(
        ###############################################################################
        [Parameter(
            Mandatory = $false,
            Position = 0,
            HelpMessage = 'Directory path for face image files'
        )]
        [string] $FacesDirectory,
        ###############################################################################
        [Parameter(
            Mandatory = $false,
            HelpMessage = ('Use alternative settings stored in session for AI ' +
                'preferences like Language, Image collections, etc')
        )]
        [switch] $SessionOnly,
        ###############################################################################
        [Parameter(
            Mandatory = $false,
            HelpMessage = ('Clear the session setting (Global variable) before ' +
                'retrieving')
        )]
        [switch] $ClearSession,
        ###############################################################################
        [Parameter(
            Mandatory = $false,
            HelpMessage = 'Database path for preference data files'
        )]
        [Alias('DatabasePath')]
        [string] $PreferencesDatabasePath,
        ###############################################################################
        [Parameter(
            Mandatory = $false,
            HelpMessage = ('Dont use alternative settings stored in session for ' +
                'AI preferences like Language, Image collections, etc')
        )]
        [Alias('FromPreferences')]
        [switch] $SkipSession
    )

    if (-not [string]::IsNullOrWhiteSpace($FacesDirectory)) {
        return (GenXdev.FileSystem\Expand-Path $FacesDirectory)
    }

    # fallback to default system directories
    $defaultPicturesPath = GenXdev.FileSystem\Expand-Path '~\Pictures'

    try {

        # attempt to get known folder path for pictures directory
        $defaultPicturesPath = GenXdev.Windows\Get-KnownFolderPath Pictures
    }
    catch {

        # fallback to default if known folder retrieval fails
        $defaultPicturesPath = GenXdev.FileSystem\Expand-Path '~\Pictures'
    }

    $FacesDirectory = [string]::IsNullOrWhiteSpace($FacesDirectory) ? $defaultPicturesPath : (GenXdev.FileSystem\Expand-Path $FacesDirectory)

    $params = GenXdev.Helpers\Copy-IdenticalParamValues `
        -BoundParameters $PSBoundParameters `
        -FunctionName 'GenXdev.Data\Get-GenXdevPreference'

    GenXdev.FileSystem\Expand-Path (GenXdev.Data\Get-GenXdevPreference @params `
            -Name 'AIKnownFacesRootpath' `
            -DefaultValue $FacesDirectory
    )
}
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