#!/usr/bin/env node

const { execSync } = require("child_process");
const fs = require("fs");
const path = require("path");

const isWin = process.platform === "win32";
const isMac = process.platform === "darwin";

// 소스 디렉토리 (현재 프로젝트 루트)
const projectRoot = path.resolve(__dirname, "..");
const projectName = "saju-web";

// NAS 경로 설정
const dstWin = `Z:\\docker\\webpage\\${projectName}\\`;
const dstMac = `/Volumes/gahusb.synology.me/docker/webpage/${projectName}/`;
const dst = isWin ? dstWin : dstMac;

// SSH 설정 (환경 변수에서 읽기)
const sshTarget = process.env.NAS_SSH_TARGET || "gahusb@gahusb.synology.me";
const sshPath = process.env.NAS_SSH_PATH || `/volume1/docker/webpage/${projectName}`;
const sshPort = process.env.NAS_SSH_PORT;

// 제외할 파일/폴더
const excludePatterns = [
  "node_modules/",
  ".next/",
  ".git/",
  "dist/",
  "out/",
  ".env.local",
  ".env*.local",
  "*.log",
  ".DS_Store",
  "build_error.log",
  "robocopy.log",
];

console.log("🚀 Saju Web NAS Deployment Started");
console.log("=====================================");
console.log(`Platform: ${process.platform}`);
console.log(`Project: ${projectName}`);
console.log("");

// SSH를 통한 배포 (추천)
if (process.env.NAS_DEPLOY_METHOD === "ssh" || sshTarget) {
  console.log("📡 Deploying via SSH...");
  console.log(`Target: ${sshTarget}:${sshPath}`);
  console.log("");

  const sshCmd = sshPort ? `ssh -p ${sshPort}` : "ssh";
  const excludeArgs = excludePatterns
    .map((pattern) => `--exclude='${pattern}'`)
    .join(" ");

  try {
    // 1. rsync로 파일 동기화
    console.log("📦 Step 1: Syncing files to NAS...");
    const rsyncCmd = `rsync -avz --delete ${excludeArgs} -e "${sshCmd}" ${projectRoot}/ ${sshTarget}:${sshPath}/`;
    console.log(`Command: ${rsyncCmd}`);
    execSync(rsyncCmd, { stdio: "inherit" });
    console.log("✅ Files synced successfully");
    console.log("");

    // 2. .env.nas를 .env로 복사
    console.log("📝 Step 2: Setting up environment variables...");
    const envCmd = `${sshCmd} ${sshTarget} "cd ${sshPath} && cp -f .env.nas .env"`;
    execSync(envCmd, { stdio: "inherit" });
    console.log("✅ Environment variables set");
    console.log("");

    // 3. Docker 빌드 및 배포
    console.log("🐳 Step 3: Building and deploying Docker container...");
    const deployCmd = `${sshCmd} ${sshTarget} "cd /volume1/docker/webpage && docker compose build ${projectName} && docker compose up -d ${projectName}"`;
    console.log(`Command: ${deployCmd}`);
    execSync(deployCmd, { stdio: "inherit" });
    console.log("✅ Docker container deployed");
    console.log("");

    // 4. 헬스체크
    console.log("🏥 Step 4: Health check...");
    setTimeout(() => {
      try {
        const healthCmd = `${sshCmd} ${sshTarget} "docker exec ${projectName} wget -q -O- http://localhost:3000/api/health"`;
        const health = execSync(healthCmd, { encoding: "utf-8" });
        console.log("Health check response:", health);
        console.log("✅ Service is healthy");
      } catch (err) {
        console.warn("⚠️  Health check failed (service may still be starting)");
      }
      console.log("");
      console.log("🎉 Deployment completed!");
      console.log("=====================================");
      console.log(`🌐 Access: http://gahusb.synology.me/saju`);
      console.log("");
      console.log("📝 To check logs:");
      console.log(`   ssh ${sshTarget} "docker logs ${projectName} --tail 50 -f"`);
      console.log("");
    }, 3000);
  } catch (err) {
    console.error("❌ Deployment failed:", err.message);
    process.exit(1);
  }
  return;
}

// SMB/CIFS 마운트를 통한 배포
console.log("📂 Deploying via SMB mount...");
console.log(`Destination: ${dst}`);
console.log("");

if (!fs.existsSync(dst)) {
  console.error("❌ NAS path not found. Check mount: " + dst);
  console.log("");
  console.log("💡 Tip: Use SSH deployment instead:");
  console.log("   NAS_DEPLOY_METHOD=ssh npm run release:nas");
  console.log("");
  console.log("   Or set environment variables:");
  console.log("   NAS_SSH_TARGET=user@gahusb.synology.me");
  console.log("   NAS_SSH_PORT=22 (optional)");
  process.exit(1);
}

if (isWin) {
  console.log("📦 Step 1: Copying files to NAS (Windows - Robocopy)...");

  // Robocopy 제외 패턴
  const excludeDirs = excludePatterns
    .filter((p) => p.endsWith("/"))
    .map((p) => p.slice(0, -1))
    .join(" ");
  const excludeFiles = excludePatterns
    .filter((p) => !p.endsWith("/"))
    .join(" ");

  const excludeDirsArg = excludeDirs ? `/XD ${excludeDirs}` : "";
  const excludeFilesArg = excludeFiles ? `/XF ${excludeFiles}` : "";

  const cmd = `powershell -NoProfile -ExecutionPolicy Bypass -Command "$ErrorActionPreference=\\"Stop\\"; $src=\\"${projectRoot}\\"; $dst=\\"${dst}\\"; if(!(Test-Path $dst)){ throw \\"NAS drive not found. Check Z: mapping.\\" }; $log = Join-Path (Get-Location) \\"robocopy.log\\"; robocopy $src $dst /MIR ${excludeDirsArg} ${excludeFilesArg} /R:1 /W:1 /E /NFL /NDL /NP /V /TEE /LOG:$log; $rc = $LASTEXITCODE; if($rc -ge 8){ Write-Host \\"robocopy failed with code $rc. See $log\\"; exit $rc } else { exit 0 }"`;

  try {
    execSync(cmd, { stdio: "inherit" });
    console.log("✅ Files copied successfully");
  } catch (err) {
    console.error("❌ File copy failed:", err.message);
    process.exit(1);
  }
} else if (isMac) {
  console.log("📦 Step 1: Copying files to NAS (macOS - ditto)...");

  // 쓰기 테스트
  const safety = dst.includes("docker/webpage/saju-web");
  if (!safety) {
    console.error("❌ Safety check failed: unexpected dst path: " + dst);
    process.exit(1);
  }

  try {
    const testPath = `${dst}.deploy-write-test`;
    fs.writeFileSync(testPath, "ok");
    fs.unlinkSync(testPath);
  } catch (err) {
    console.error(
      "❌ NAS write test failed. Files may be locked or permissions are read-only."
    );
    console.error(
      "💡 Try using SSH deployment instead: NAS_DEPLOY_METHOD=ssh npm run release:nas"
    );
    throw err;
  }

  try {
    execSync(`ditto ${projectRoot} ${dst}`, { stdio: "inherit" });
    console.log("✅ Files copied successfully");
  } catch (err) {
    console.error("❌ File copy failed:", err.message);
    process.exit(1);
  }
} else {
  // Linux 등 기타 플랫폼
  console.log("📦 Step 1: Copying files to NAS (rsync)...");

  const excludeArgs = excludePatterns
    .map((pattern) => `--exclude='${pattern}'`)
    .join(" ");
  const cmd = `rsync -avz --delete ${excludeArgs} ${projectRoot}/ ${dst}`;

  try {
    execSync(cmd, { stdio: "inherit" });
    console.log("✅ Files copied successfully");
  } catch (err) {
    console.error("❌ File copy failed:", err.message);
    process.exit(1);
  }
}

console.log("");
console.log("⚠️  Files copied to NAS. Manual steps required:");
console.log("");
console.log("1. SSH into NAS:");
console.log(`   ssh ${sshTarget}`);
console.log("");
console.log("2. Setup environment:");
console.log(`   cd ${sshPath}`);
console.log(`   cp -f .env.nas .env`);
console.log("");
console.log("3. Deploy Docker container:");
console.log(`   cd /volume1/docker/webpage`);
console.log(`   docker compose build ${projectName}`);
console.log(`   docker compose up -d ${projectName}`);
console.log("");
console.log("💡 Tip: Use SSH deployment for automated process:");
console.log("   NAS_DEPLOY_METHOD=ssh npm run release:nas");
console.log("");