<#
.SYNOPSIS
    Uninstalls "EntraCP.wsp" in a simple, automated way
.DESCRIPTION
    Run this script ONLY on the server running the central administration, in a new PowerShell process.
    The script does not require any modification.
.LINK
    https://entracp.yvand.net/docs/usage/remove/
#>

$product = "EntraCP"
$featureNamePrefix = "Yvand"
Write-Host "Disables the features present in $product.wsp solution"
Disable-SPFeature -Identity "$featureNamePrefix.$product" -Confirm:$false # This will remove the claims provider from the farm
Disable-SPFeature -Identity "$featureNamePrefix.$product.Administration" -Url $([Microsoft.SharePoint.Administration.SPAdministrationWebApplication]::Local.Url) -Confirm:$false

Write-Host "Uninstalls the features present in $product.wsp solution"
Uninstall-SPFeature -Identity "$featureNamePrefix.$product" -Confirm:$false
Uninstall-SPFeature -Identity "$featureNamePrefix.$product.Administration" -Confirm:$false

# Sanity check: The solution should not be retracted until its features are properly removed, because it cannot be done afterward
if ($null -eq (Get-SPFeature | ?{$_.DisplayName -like "$featureNamePrefix.$product*"}) -and
    $null -eq (Get-SPClaimProvider -Identity "$product" -ErrorAction SilentlyContinue)) {
    
    Write-Host "Retracts the $product.wsp solution"
    Uninstall-SPSolution -Identity "$product.wsp" -Confirm:$false
    
    $count = 0
    $maxAttempts = 10
    do
    {
        Write-Host "Waiting for the solution $product.wsp to be retracted..."
        Start-Sleep -Seconds 10
        $solution = Get-SPSolution -Identity "$product.wsp"
        $count++
    }
    while ($count -lt $maxAttempts -and $false -ne $solution.Deployed -and $false -ne $solution.JobExists)
    
    if ($false -eq $solution.Deployed -and $false -eq $solution.JobExists) {
        Write-Host "Removes the $product.wsp solution"
        Remove-SPSolution -Identity "$product.wsp" -Confirm:$false
    }
}