# Truto CLI installer for Windows (PowerShell)
# Usage: irm https://cli.truto.one/install.ps1 | iex
#
# Environment variables:
#   $env:TRUTO_VERSION     - install a specific version (e.g. "0.26.2")
#   $env:TRUTO_INSTALL_DIR - install location (default: %USERPROFILE%\.truto\bin)

$ErrorActionPreference = 'Stop'

$BaseUrl = 'https://cli.truto.one'

$InstallDir = if ($env:TRUTO_INSTALL_DIR) {
    $env:TRUTO_INSTALL_DIR
} else {
    Join-Path $env:USERPROFILE '.truto\bin'
}

# Bun does not ship a native windows-arm64 target yet; Windows-on-ARM
# users get the x64 binary, which runs transparently under the OS's
# x64 emulation layer.
$Arch = switch ($env:PROCESSOR_ARCHITECTURE) {
    'AMD64' { 'x64' }
    'ARM64' { 'x64' }
    default {
        Write-Error "Unsupported architecture: $env:PROCESSOR_ARCHITECTURE. Truto CLI supports x64 (and ARM64 via emulation)."
        exit 1
    }
}

$Binary = "truto-windows-$Arch.exe"

if ($env:TRUTO_VERSION) {
    $Url = "$BaseUrl/releases/$($env:TRUTO_VERSION)/$Binary"
} else {
    $Url = "$BaseUrl/latest/$Binary"
}

Write-Host "> Downloading Truto CLI (windows/$Arch)" -ForegroundColor Cyan

New-Item -ItemType Directory -Force -Path $InstallDir | Out-Null
$Target = Join-Path $InstallDir 'truto.exe'

# Download via Invoke-WebRequest. Force TLS 1.2+ in case the host
# defaults to TLS 1.0 (older Windows Server SKUs). UseBasicParsing
# keeps this script working on Server Core / Nano without IE engine.
[Net.ServicePointManager]::SecurityProtocol = [Net.ServicePointManager]::SecurityProtocol -bor [Net.SecurityProtocolType]::Tls12
Invoke-WebRequest -Uri $Url -OutFile $Target -UseBasicParsing

# Unblock the binary so SmartScreen / Mark-of-the-Web does not nag the
# user on first launch. Best-effort: -ErrorAction SilentlyContinue
# keeps things quiet if the file system does not support ADS (FAT32,
# network share, etc.).
Unblock-File -Path $Target -ErrorAction SilentlyContinue

# Add to the user's PATH if missing. We intentionally edit the User
# scope (not Machine) so the installer does not require admin.
$UserPath = [Environment]::GetEnvironmentVariable('Path', 'User')
if (-not $UserPath) { $UserPath = '' }
$pathSegments = $UserPath.Split(';') | Where-Object { $_ -ne '' }
if ($pathSegments -notcontains $InstallDir) {
    $newPath = if ($UserPath) { "$UserPath;$InstallDir" } else { $InstallDir }
    [Environment]::SetEnvironmentVariable('Path', $newPath, 'User')
    # Update the live session too, so a follow-up `truto --help` works
    # without restarting the shell.
    $env:Path = "$env:Path;$InstallDir"
    Write-Host "  Added $InstallDir to your user PATH." -ForegroundColor DarkGray
}

Write-Host ""
Write-Host "[OK] Truto CLI installed to $Target" -ForegroundColor Green
Write-Host "  Run 'truto --help' to get started"
Write-Host "  Run 'truto login' to authenticate"
Write-Host "  Optional (for AI-powered 'truto integrations build'): set ANTHROPIC_API_KEY or run 'truto profiles set-key anthropic'"

if (-not (Get-Command truto -ErrorAction SilentlyContinue)) {
    Write-Host ""
    Write-Host "  Open a new terminal window to pick up the updated PATH." -ForegroundColor Yellow
}