# setup-dev-environment.ps1
# Installs everything needed to develop and run the StudioFlow project on a new Windows machine.
#
# Run this ONCE on a fresh machine, then use export-data.ps1 / import-data.ps1 for data.
# Recommended: run from an elevated PowerShell (right-click -> "Run as Administrator").
#
# What gets installed:
#   - Git
#   - Node.js LTS  (v24.x -- matches the current dev machine)
#   - VSCodium  (open-source VS Code build without Microsoft telemetry)

$ErrorActionPreference = "Stop"

Write-Host ""
Write-Host "============================================" -ForegroundColor Cyan
Write-Host "  StudioFlow -- Dev Environment Setup" -ForegroundColor Cyan
Write-Host "============================================" -ForegroundColor Cyan
Write-Host ""

# --- Check: running as Administrator ------------------------------------------
$IsAdmin = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(
    [Security.Principal.WindowsBuiltInRole]::Administrator
)
if (-not $IsAdmin) {
    Write-Host "WARNING: Not running as Administrator." -ForegroundColor Yellow
    Write-Host "         Some installers (Docker Desktop) may fail or prompt for elevation." -ForegroundColor Yellow
    Write-Host "         Re-run with 'Run as Administrator' if anything fails." -ForegroundColor Yellow
    Write-Host ""
}

# --- Check: winget available --------------------------------------------------
if (-not (Get-Command winget -ErrorAction SilentlyContinue)) {
    Write-Host "ERROR: winget not found." -ForegroundColor Red
    Write-Host "Install it from the Microsoft Store (search 'App Installer') and re-run."
    exit 1
}

# --- Helper: install one package via winget -----------------------------------
$NeedsRestart = $false

function Install-Package($DisplayName, $WingetId) {
    Write-Host ""
    Write-Host "[$DisplayName]" -ForegroundColor Cyan

    # Check if already installed
    $listOutput = winget list --id $WingetId --exact --accept-source-agreements 2>&1
    $alreadyInstalled = $listOutput | Where-Object { $_ -match [regex]::Escape($WingetId) }

    if ($alreadyInstalled) {
        Write-Host "  Already installed -- skipping." -ForegroundColor Green
        return
    }

    Write-Host "  Downloading and installing..."
    winget install `
        --id $WingetId `
        --exact `
        --silent `
        --accept-package-agreements `
        --accept-source-agreements

    if ($LASTEXITCODE -eq 0) {
        Write-Host "  Installed OK." -ForegroundColor Green
    } elseif ($LASTEXITCODE -eq -1978335189) {
        # 0x8A150021 -- "No applicable update found" means already installed at latest
        Write-Host "  Already at latest version." -ForegroundColor Green
    } else {
        Write-Host "  WARNING: winget exited with code $LASTEXITCODE." -ForegroundColor Yellow
        Write-Host "           The install may have partially worked -- check manually." -ForegroundColor Yellow
    }
}

# --- Install core tools -------------------------------------------------------
Install-Package "Git" "Git.Git"
Install-Package "Node.js LTS (v24)" "OpenJS.NodeJS.LTS"
Install-Package "VSCodium" "VSCodium.VSCodium"

# --- Refresh PATH so npm is available in this session -------------------------
Write-Host ""
Write-Host "[Refreshing PATH]" -ForegroundColor Cyan
$MachinePath = [System.Environment]::GetEnvironmentVariable("Path", "Machine")
$UserPath    = [System.Environment]::GetEnvironmentVariable("Path", "User")
$env:Path    = "$MachinePath;$UserPath"
Write-Host "  Done." -ForegroundColor Green

# --- Summary ------------------------------------------------------------------
Write-Host ""
Write-Host "============================================" -ForegroundColor Cyan
Write-Host "  Setup complete!" -ForegroundColor Cyan
Write-Host "============================================" -ForegroundColor Cyan
Write-Host ""
Write-Host "IMPORTANT -- before you can run the project:" -ForegroundColor Yellow
Write-Host ""
Write-Host "  1. Restart your terminal (or reboot) so Git and Node are in PATH." -ForegroundColor White
Write-Host ""
Write-Host "  2. Copy the project folder to this machine (or clone from git)." -ForegroundColor White
Write-Host ""
Write-Host "  3. Copy the data_backup\<timestamp> folder into the project root" -ForegroundColor White
Write-Host "     and run:  .\import-data.ps1" -ForegroundColor White
Write-Host ""
Write-Host "  4. Start infrastructure (Docker Desktop must already be running):" -ForegroundColor White
Write-Host "       cd infrastructure" -ForegroundColor Gray
Write-Host "       docker compose up -d postgres redis" -ForegroundColor Gray
Write-Host ""
Write-Host "  5. Install dependencies and start the app:" -ForegroundColor White
Write-Host "       cd backend  && npm install && npm run start:dev" -ForegroundColor Gray
Write-Host "       cd frontend && npm install && npm run dev" -ForegroundColor Gray
Write-Host "       (second terminal for the worker)" -ForegroundColor Gray
Write-Host "       cd backend && npx ts-node src/worker.ts" -ForegroundColor Gray
Write-Host ""