# Autoclank CLI Installer for Windows
# Usage: iwr -useb http://your-server/tools/install.ps1 | iex

$ErrorActionPreference = "Stop"

# Server URL - will be replaced by the server when served, or use env var
$ServerUrl = if ($env:AUTOCLANK_SERVER_URL) { $env:AUTOCLANK_SERVER_URL } else { "{{SERVER_URL}}" }
$BinaryName = "autoclank.exe"
$InstallDir = "$env:LOCALAPPDATA\Programs\autoclank"

function Write-Info { param($msg) Write-Host "[INFO] $msg" -ForegroundColor Green }
function Write-Warn { param($msg) Write-Host "[WARN] $msg" -ForegroundColor Yellow }
function Write-Err { param($msg) Write-Host "[ERROR] $msg" -ForegroundColor Red; exit 1 }

function Get-Platform {
    $arch = [System.Environment]::GetEnvironmentVariable("PROCESSOR_ARCHITECTURE")
    switch ($arch) {
        "AMD64" { return "windows_amd64" }
        "ARM64" { return "windows_arm64" }
        default { Write-Err "Unsupported architecture: $arch" }
    }
}

function Install-Binary {
    param($Platform)

    $downloadUrl = "$ServerUrl/tools/binaries/autoclank_$Platform.exe"
    $tmpDir = Join-Path $env:TEMP "autoclank-install"

    # Create temp directory
    New-Item -ItemType Directory -Force -Path $tmpDir | Out-Null

    Write-Info "Downloading from $downloadUrl..."
    try {
        Invoke-WebRequest -Uri $downloadUrl -OutFile (Join-Path $tmpDir $BinaryName)
    } catch {
        Write-Err "Download failed. Make sure the server has binaries available at $downloadUrl"
    }

    # Create install directory
    New-Item -ItemType Directory -Force -Path $InstallDir | Out-Null

    Write-Info "Installing to $InstallDir..."
    Move-Item -Path (Join-Path $tmpDir $BinaryName) -Destination $InstallDir -Force

    # Cleanup
    Remove-Item -Recurse -Force $tmpDir

    Write-Info "Installed $BinaryName to $InstallDir"
}

function Add-ToPath {
    $currentPath = [Environment]::GetEnvironmentVariable("Path", "User")
    if ($currentPath -notlike "*$InstallDir*") {
        Write-Info "Adding $InstallDir to PATH..."
        [Environment]::SetEnvironmentVariable("Path", "$currentPath;$InstallDir", "User")
        $env:Path = "$env:Path;$InstallDir"
        Write-Info "Added to PATH. Restart your terminal for changes to take effect."
    } else {
        Write-Info "$InstallDir already in PATH"
    }
}

function Test-ClaudeCLI {
    Write-Info "Checking for Claude Code CLI..."
    try {
        $version = npx @anthropic-ai/claude-code --version 2>$null
        if ($version) {
            Write-Info "Claude Code CLI found: $version"
        } else {
            Write-Warn "Claude Code CLI not found. Install with: npm install -g @anthropic-ai/claude-code"
        }
    } catch {
        Write-Warn "npx not found. Install Node.js to use Claude Code CLI"
    }
}

function Test-Installation {
    $binaryPath = Join-Path $InstallDir $BinaryName
    if (Test-Path $binaryPath) {
        Write-Info "Installation verified!"
        & $binaryPath version
    } else {
        Write-Warn "Binary not found at $binaryPath"
    }
}

function Main {
    Write-Host "================================" -ForegroundColor Cyan
    Write-Host "  Autoclank CLI Installer" -ForegroundColor Cyan
    Write-Host "================================" -ForegroundColor Cyan
    Write-Host ""

    $platform = Get-Platform
    Write-Info "Detected platform: $platform"

    Install-Binary -Platform $platform
    Add-ToPath
    Test-ClaudeCLI
    Test-Installation

    Write-Host ""
    Write-Info "Installation complete!"
    Write-Host ""
    Write-Host "Get started:"
    Write-Host "  autoclank init              # Initialize in a project"
    Write-Host "  autoclank agent test        # Test Claude Code connection"
    Write-Host "  autoclank help              # Show all commands"
}

Main