#Requires -Version 5.1
<#
.SYNOPSIS
    Installs Claude Code (Anthropic's command-line AI assistant) on Windows using WinGet.

.DESCRIPTION
    Installs Claude Code natively via winget (Anthropic.ClaudeCode).
    This native installation method is recommended for Windows.

.EXAMPLE
    .\install-claude-code.ps1

    # One-liner install from remote (works on Windows 10+):
    powershell -ExecutionPolicy Bypass -c "[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12; $t=\"$env:TEMP\install-claude-code.ps1\"; iwr -useb 'https://gl.isitsoft.kr/publicproj/install-sh/-/raw/main/install-claude-code.ps1' -OutFile $t; & $t"

.NOTES
    If execution policy error occurs:
      Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
#>

[CmdletBinding()]
param()

# 최신 윈도우 환경 및 에러 발생 시 즉시 중단 설정
Set-StrictMode -Version Latest
$ErrorActionPreference = 'Stop'

# HTTPS 다운로드를 위한 TLS 1.2 강제 (PowerShell 5.1 호환성 보장)
[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

# ────────────────────────────────────────────
# 유틸리티 함수 정의 (모든 안내 문구는 영문으로 작성)
# ────────────────────────────────────────────
function Write-Info    { param([string]$msg) Write-Host "[INFO]  $msg" -ForegroundColor Cyan }
    # 정보 출력
function Write-Warn    { param([string]$msg) Write-Host "[WARN]  $msg" -ForegroundColor Yellow }
    # 경고 출력
function Write-Success { param([string]$msg) Write-Host "[OK]    $msg" -ForegroundColor Green }
    # 성공 출력
function Write-Err     { param([string]$msg) Write-Host "[ERROR] $msg" -ForegroundColor Red; exit 1 }
    # 에러 출력 및 스크립트 강제 종료

# ────────────────────────────────────────────
# 메인 설치 프로세스
# ────────────────────────────────────────────
function Main {
    Write-Info "===== Claude Code install script (Windows PowerShell) ====="
    Write-Info "Installing Claude Code (command-line AI assistant) natively..."

    # 1) winget 명령어 가용성 확인
    if (-not (Get-Command winget -ErrorAction SilentlyContinue)) {
        Write-Err "winget is required to install Claude Code. Please install it from the Microsoft Store or https://learn.microsoft.com/en-us/windows/package-manager/winget/"
    }

    # 2) winget을 통한 Anthropic.ClaudeCode 설치 가동
    try {
        Write-Info "Running winget installer..."
        # 라이센스 및 소스 협약 자동 수락 처리와 함께 설치 실행
        winget install --id Anthropic.ClaudeCode --accept-package-agreements --accept-source-agreements 2>&1 | Out-Null
        
        Write-Success "Claude Code has been successfully installed!"
        Write-Info "Please restart your terminal window or refresh your PATH environment variable."
        Write-Info "Run command: claude"
    } catch {
        Write-Err "Failed to install Claude Code via winget: $_"
    }
}

# 예기치 못한 전체 프로세스 에러 감지를 위한 Trap 설정
trap {
    Write-Err "An unexpected error occurred during installation: $_"
}

Main