<#
.SYNOPSIS
    Build Codename 206 and install the VST3 (and CLAP) into the system plugin folders.

.DESCRIPTION
    FL Studio scans `C:\Program Files\Common Files\VST3` by default and ignores
    directory junctions, so deployment must place a REAL bundle copy there. That
    folder needs admin, so the copy step self-elevates (one UAC prompt).

    After deploying, in FL Studio: Options -> Manage plugins ->
    tick "Rescan previously failed plugins" -> "Find installed plugins".

.PARAMETER SkipBuild
    Install the existing target\bundled output without rebuilding.

.PARAMETER User
    Install to the per-user folder %LOCALAPPDATA%\Programs\Common\VST3 instead of
    the global one. No admin required; add that path in FL's plugin search paths.

.EXAMPLE
    .\deploy.ps1                # build + install to global VST3/CLAP (UAC prompt)
    .\deploy.ps1 -SkipBuild     # reinstall last build
    .\deploy.ps1 -User          # no-admin install for a fast dev loop
#>
param(
    [switch]$SkipBuild,
    [switch]$User,
    [string]$Package = "codename_206"
)

$ErrorActionPreference = "Stop"
$root = Split-Path -Parent $MyInvocation.MyCommand.Path

# rustup installs cargo here; make sure it's reachable even in a fresh shell.
$cargoBin = Join-Path $env:USERPROFILE ".cargo\bin"
if (Test-Path $cargoBin) { $env:Path = "$cargoBin;$env:Path" }

if (-not $SkipBuild) {
    Write-Host "Building $Package (release)..." -ForegroundColor Cyan
    Push-Location $root
    try { cargo xtask bundle $Package --release } finally { Pop-Location }
    if ($LASTEXITCODE -ne 0) { throw "cargo xtask bundle failed (exit $LASTEXITCODE)" }
}

$vst3Name = "Codename 206.vst3"
$clapName = "Codename 206.clap"
$bundled  = Join-Path $root "target\bundled"
$vst3Src  = Join-Path $bundled $vst3Name
$clapSrc  = Join-Path $bundled $clapName
if (-not (Test-Path $vst3Src)) { throw "Bundle not found: $vst3Src (build first)" }

if ($User) {
    $vst3Dst = Join-Path $env:LOCALAPPDATA "Programs\Common\VST3"
    $clapDst = Join-Path $env:LOCALAPPDATA "Programs\Common\CLAP"
    New-Item -ItemType Directory -Force -Path $vst3Dst, $clapDst | Out-Null
    Write-Host "Installing (per-user, no admin)..." -ForegroundColor Cyan
    Remove-Item (Join-Path $vst3Dst $vst3Name) -Recurse -Force -ErrorAction SilentlyContinue
    Copy-Item $vst3Src -Destination $vst3Dst -Recurse -Force
    if (Test-Path $clapSrc) { Copy-Item $clapSrc -Destination $clapDst -Force }
    Write-Host "Installed to $vst3Dst" -ForegroundColor Green
    Write-Host "Add that folder to FL's plugin search paths if you haven't." -ForegroundColor Yellow
}
else {
    $vst3Dst = Join-Path $env:CommonProgramFiles "VST3"
    $clapDst = Join-Path $env:CommonProgramFiles "CLAP"
    Write-Host "Installing to $vst3Dst (requires admin - accept the UAC prompt)..." -ForegroundColor Cyan
    $cmd = @"
New-Item -ItemType Directory -Force -Path '$clapDst' | Out-Null
Remove-Item -LiteralPath '$vst3Dst\$vst3Name' -Recurse -Force -ErrorAction SilentlyContinue
Copy-Item -LiteralPath '$vst3Src' -Destination '$vst3Dst' -Recurse -Force
if (Test-Path -LiteralPath '$clapSrc') { Copy-Item -LiteralPath '$clapSrc' -Destination '$clapDst' -Force }
"@
    $enc = [Convert]::ToBase64String([Text.Encoding]::Unicode.GetBytes($cmd))
    Start-Process powershell -Verb RunAs -Wait -ArgumentList '-NoProfile','-EncodedCommand',$enc
}

# Verify each bundle was actually refreshed. A plugin currently loaded in a DAW keeps its
# binary locked, so the copy fails silently and leaves a STALE install — re-scanning then runs
# old code. Compare install vs build timestamps to catch exactly that.
function Test-Installed($label, $src, $dst) {
    if (-not (Test-Path $src)) { return }  # nothing was built for this format
    if (-not (Test-Path $dst)) { throw "$label install verification failed: $dst not found" }
    $srcT = (Get-Item $src).LastWriteTime
    $dstT = (Get-Item $dst).LastWriteTime
    if ($dstT -lt $srcT) {
        Write-Warning "$label is STALE (installed $dstT < built $srcT). It's almost certainly loaded in your DAW (file locked). Close the plugin/DAW and re-run deploy."
    }
    else {
        Write-Host "$label installed OK -> $dst" -ForegroundColor Green
    }
}

Test-Installed "VST3" (Join-Path $vst3Src "Contents\x86_64-win\$vst3Name") (Join-Path $vst3Dst "$vst3Name\Contents\x86_64-win\$vst3Name")
Test-Installed "CLAP" $clapSrc (Join-Path $clapDst $clapName)
Write-Host "In FL Studio: Manage plugins -> 'Rescan previously failed plugins' -> Find installed plugins." -ForegroundColor Yellow