Public/Get-GW2GuildPermissions.ps1

<#
.SYNOPSIS
Retrieves guild rank permission information from the Guild Wars 2 API.
 
.DESCRIPTION
Calls the Guild Wars 2 API v2 /guild/permissions endpoint.
- If no parameters are provided, returns a list of all available guild permission IDs.
- If 'Ids' is provided, returns objects containing details for the specified guild permissions.
- If 'All' is specified, returns all available guild permissions.
 
.PARAMETER Ids
Optional. A list of guild permission IDs (strings) to retrieve.
Example: "Admin", "EditAnthem"
 
.PARAMETER All
Optional. If set, retrieves all guild permissions.
 
.PARAMETER Lang
Optional. The language to return results in (en, es, de, fr, ko, zh).
 
.EXAMPLE
Get-GW2GuildPermissions
Returns a list of all guild permission IDs.
 
.EXAMPLE
Get-GW2GuildPermissions -Ids "Admin"
Returns details for the specified guild permission.
 
.EXAMPLE
Get-GW2GuildPermissions -All
Returns details for all guild permissions.
 
.NOTES
- Requires network access to api.guildwars2.com.
- This is a public endpoint and does not require an API key.
#>

function Get-GW2GuildPermissions {
    param (
        [Parameter(Mandatory = $false)]
        [string[]]$Ids,

        [Parameter(Mandatory = $false)]
        [switch]$All,

        [Parameter(Mandatory = $false)]
        [ValidateSet("en", "es", "de", "fr", "ko", "zh")]
        [string]$Lang
    )
    
    $url = "https://api.guildwars2.com/v2/guild/permissions"

    if ($All) {
        $url = $url + "?ids=all"
    }
    elseif ($Ids) {
        # Join IDs with commas for the query parameter
        $idString = $Ids -join ','
        $url = $url + "?ids=$idString"
    }

    if ($Lang) {
        if ($url.Contains("?")) {
            $url = $url + "&lang=$Lang"
        }
        else {
            $url = $url + "?lang=$Lang"
        }
    }

    $response = Invoke-RestMethod -Uri $url -Method Get
    
    return $response
}