#Requires -Version 5.1
<#
.SYNOPSIS
    Build Vulcast Vertical OBS plugin - v7 (downloads zip, no git needed)
#>
param()
$ErrorActionPreference = 'Stop'
$CacheDir = Join-Path $env:LOCALAPPDATA "vulcast-build"
$PluginDir = Join-Path $CacheDir "vulcast-vertical"
$buildDir = Join-Path $PluginDir "build_x64"

Write-Host "=== Vulcast Vertical Build v7 ===" -ForegroundColor Cyan

# 1. Find VS Build Tools
$vswhere = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
if (!(Test-Path $vswhere)) { throw "VS Build Tools not found" }
$installPath = & $vswhere -latest -products * -requires Microsoft.VisualStudio.Component.VC.Tools.x86.x64 -property installationPath 2>$null
if (!$installPath) { throw "VS Build Tools not found" }
$vcvarsall = Join-Path $installPath "VC\Auxiliary\Build\vcvarsall.bat"

# 2. Download and extract plugin source (no git needed)
$zipPath = Join-Path $CacheDir "vulcast-vertical-latest.zip"
if (!(Test-Path (Join-Path $PluginDir "CMakeLists.txt"))) {
    Write-Host "[1/4] Downloading source..." -ForegroundColor Cyan
    if (Test-Path $PluginDir) { Remove-Item $PluginDir -Recurse -Force }
    New-Item -ItemType Directory -Path $CacheDir -Force | Out-Null
    Invoke-WebRequest -Uri "https://vulcast.xyz/dl/vulcast-vertical-latest.zip" -OutFile $zipPath
    Expand-Archive -Path $zipPath -DestinationPath $PluginDir -Force
    # If zip has a root folder, flatten it
    $inner = Get-ChildItem -Path $PluginDir -Directory | Select-Object -First 1
    if ($inner -and (Test-Path (Join-Path $inner.FullName "CMakeLists.txt"))) {
        Get-ChildItem -Path $inner.FullName -Force | Move-Item -Destination $PluginDir -Force
        Remove-Item $inner.FullName -Recurse -Force -ErrorAction SilentlyContinue
    }
} else {
    Write-Host "[1/4] Source already cached." -ForegroundColor Green
}

# 3. Write CMakeUserPresets.json
Write-Host "[2/4] Writing cmake presets..." -ForegroundColor Cyan
$presetJson = @'
{
  "version": 6,
  "configurePresets": [
    {
      "name": "vulcast-local",
      "displayName": "Vulcast Local Build",
      "generator": "Visual Studio 17 2022",
      "architecture": "x64",
      "binaryDir": "${sourceDir}/build_x64",
      "cacheVariables": {
        "CMAKE_BUILD_TYPE": "Release",
        "CMAKE_SYSTEM_VERSION": "10.0.18363.657",
        "QT_VERSION": "6"
      }
    }
  ]
}
'@
$presetPath = Join-Path $PluginDir "CMakeUserPresets.json"
Set-Content -Path $presetPath -Value $presetJson -Encoding UTF8

# 4. Configure cmake
Write-Host "[3/4] Configuring cmake..." -ForegroundColor Cyan
New-Item -ItemType Directory -Path $buildDir -Force | Out-Null
cmd /c "call `"$vcvarsall`" x64 && cmake --preset vulcast-local -S `"$PluginDir`""
if ($LASTEXITCODE -ne 0) { throw "cmake configure failed" }

# 5. Build
Write-Host "[4/4] Building DLL..." -ForegroundColor Cyan
cmd /c "call `"$vcvarsall`" x64 && cmake --build `"$buildDir`" --config Release"
if ($LASTEXITCODE -ne 0) { throw "Build failed" }

# Find and install DLL
$dll = Get-ChildItem -Path $buildDir -Recurse -Filter "vulcast-vertical.dll" -ErrorAction SilentlyContinue | Select-Object -First 1
if (!$dll) { $dll = Get-ChildItem -Path $buildDir -Recurse -Filter "vertical-canvas.dll" -ErrorAction SilentlyContinue | Select-Object -First 1 }
if (!$dll) { $dll = Get-ChildItem -Path $buildDir -Recurse -Filter "*.dll" -ErrorAction SilentlyContinue | Where-Object { $_.FullName -notmatch "Qt6|obs" } | Select-Object -First 1 }

if ($dll) {
    $pluginsDir = Join-Path $env:ProgramFiles "obs-studio\obs-plugins\64bit"
    if (!(Test-Path $pluginsDir)) { $pluginsDir = Join-Path $CacheDir "obs-plugins"; New-Item -ItemType Directory -Path $pluginsDir -Force | Out-Null }
    Copy-Item $dll.FullName $pluginsDir -Force
    Write-Host "`nDone! DLL: $pluginsDir\$($dll.Name)" -ForegroundColor Green
} else {
    throw "DLL not found in build output"
}