# Unheard City - uninstaller (registered in Settings > Apps by install.ps1).
#   uninstall.ps1 [-Quiet] [-RemoveUserData]
# Removes the program folder, the shortcuts and the Apps entry. Your user data (%APPDATA%\UnheardCity: originals
# store, notes, settings) is kept unless you choose to remove it - it is what "Revert" uses to restore the game.
param([switch]$Quiet, [switch]$RemoveUserData)
$ErrorActionPreference = "Stop"
$Name = "Unheard City"
$Target = $PSScriptRoot
$RegKey = "HKCU:\Software\Microsoft\Windows\CurrentVersion\Uninstall\UnheardCity"
$Links = @((Join-Path ([Environment]::GetFolderPath("Programs")) "$Name.lnk"),
           (Join-Path ([Environment]::GetFolderPath("Desktop")) "$Name.lnk"))
$Data = @((Join-Path $env:APPDATA "UnheardCity"), (Join-Path $env:LOCALAPPDATA "UnheardCity"))

function Say($msg) { if (-not $Quiet) { Write-Host $msg } }

function Modified-Count {
    # sounds and texts (subtitles, menu text) still changed in the game, according to the originals stores
    $n = 0
    Get-ChildItem -Path (Join-Path $Data[0] "stores\*\store.json") -ErrorAction SilentlyContinue | ForEach-Object {
        try {
            $s = Get-Content -Raw -LiteralPath $_.FullName | ConvertFrom-Json
            $n += @($s.entries.PSObject.Properties).Count
            if ($s.texts) { $n += @($s.texts.PSObject.Properties).Count }
        } catch {}
    }
    return $n
}

try {
    if (Get-Process -Name "UnheardCity" -ErrorAction SilentlyContinue) { throw "$Name is running. Close it first." }
    $mods = Modified-Count
    if ($mods -gt 0 -and -not $Quiet) {
        Write-Host "$mods sound(s) or text(s) are still modified in the game. To restore the originals, open $Name and"
        Write-Host "use 'Revert all' BEFORE uninstalling (your originals store is kept either way)."
        if ((Read-Host "Uninstall anyway? [y/N]") -notmatch '^(y|yes)$') { exit 1 }
    }
    if (-not $Quiet -and -not $RemoveUserData -and $mods -eq 0 -and (Test-Path $Data[0])) {
        $RemoveUserData = (Read-Host "Also delete your settings, notes and backups in $($Data[0])? [y/N]") -match '^(y|yes)$'
    }
    foreach ($l in $Links) { if (Test-Path $l) { Remove-Item -LiteralPath $l -Force } }
    if (Test-Path $RegKey) { Remove-Item -Path $RegKey -Recurse -Force }
    if ($RemoveUserData -and $mods -eq 0) { foreach ($d in $Data) { if (Test-Path $d) { Remove-Item -LiteralPath $d -Recurse -Force } } }
    # the folder holding this script is removed after it exits
    Start-Process -FilePath "cmd.exe" -ArgumentList "/c ping 127.0.0.1 -n 3 >nul & rmdir /s /q `"$Target`"" -WindowStyle Hidden
    Say "$Name has been uninstalled."
    exit 0
} catch {
    Write-Host "Uninstall failed: $($_.Exception.Message)" -ForegroundColor Red
    exit 1
}