#!/usr/bin/env node
/**
 * Mac 산출물 정리
 *  - zip(포터블): .app + 실행하기.command
 *  - dmg(설치형): 동일 서명 .app + 「응용 프로그램에 설치하고 실행.command」
 *    (Gatekeeper 「손상됨」팝업 방지 — 설치 시 xattr -cr 수행)
 */
import { execFileSync } from "node:child_process";
import fs from "node:fs";
import os from "node:os";
import path from "node:path";
import { fileURLToPath } from "node:url";
import { DOWNLOAD_ARTIFACTS } from "./download-artifacts.mjs";

const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const distDir = path.join(root, "dist");
const appName = "EX AI Chatbot.app";
const packagingMac = path.join(root, "packaging", "mac");
const installCmdName = "응용 프로그램에 설치하고 실행.command";
const runCmdName = "실행하기.command";
const guideName = "설치안내.txt";

const TARGETS = [
  {
    appDirs: [path.join(distDir, "mac-x64", appName), path.join(distDir, "mac", appName)],
    zipName: DOWNLOAD_ARTIFACTS.macIntelPortable,
    dmgName: DOWNLOAD_ARTIFACTS.macIntelInstaller,
    label: "intel (x64)",
  },
  {
    appDirs: [path.join(distDir, "mac-arm64", appName)],
    zipName: DOWNLOAD_ARTIFACTS.macSiliconPortable,
    dmgName: DOWNLOAD_ARTIFACTS.macSiliconInstaller,
    label: "silicon (arm64)",
  },
];

function codesignApp(appPath, label) {
  try {
    execFileSync(
      "codesign",
      [
        "--force",
        "--deep",
        "--sign",
        "-",
        "--entitlements",
        path.join(packagingMac, "entitlements.plist"),
        appPath,
      ],
      { stdio: "inherit" },
    );
  } catch (e) {
    console.warn(`[finalize-mac] entitlements codesign 실패 (${label}), ad-hoc 재시도:`, e.message);
    try {
      execFileSync("codesign", ["--force", "--deep", "--sign", "-", appPath], {
        stdio: "inherit",
      });
    } catch (e2) {
      console.warn(`[finalize-mac] codesign 실패 (${label}):`, e2.message);
    }
  }
  try {
    execFileSync("xattr", ["-cr", appPath], { stdio: "ignore" });
  } catch {
    /* ignore */
  }
}

function ensurePackagingFiles() {
  for (const name of [runCmdName, installCmdName, guideName]) {
    const p = path.join(packagingMac, name);
    if (!fs.existsSync(p)) throw new Error(`packaging/mac 파일 없음: ${name}`);
  }
}

function packZip(appPath, zipName, label) {
  console.log(`[finalize-mac] zip ${label}: ${appPath}`);
  const stage = fs.mkdtempSync(path.join(os.tmpdir(), "ex-ai-mac-zip-"));
  try {
    fs.cpSync(appPath, path.join(stage, appName), { recursive: true });
    fs.copyFileSync(path.join(packagingMac, runCmdName), path.join(stage, runCmdName));
    fs.copyFileSync(path.join(packagingMac, guideName), path.join(stage, guideName));
    fs.chmodSync(path.join(stage, runCmdName), 0o755);
    try {
      execFileSync("xattr", ["-cr", stage], { stdio: "ignore" });
    } catch {
      /* ignore */
    }

    const zipPath = path.join(distDir, zipName);
    if (fs.existsSync(zipPath)) fs.unlinkSync(zipPath);
    execFileSync("zip", ["-r", "-y", zipPath, appName, runCmdName, guideName], {
      cwd: stage,
      stdio: "inherit",
    });
    const size = fs.statSync(zipPath).size;
    console.log(`[finalize-mac] ✅ zip ${zipName} (${Math.round(size / 1024 / 1024)} MB)`);
    return true;
  } finally {
    fs.rmSync(stage, { recursive: true, force: true });
  }
}

function detachStaleVolumes() {
  for (const vol of ["EX AI Chatbot", "EX AI Chatbot Intel", "EX AI Chatbot Silicon"]) {
    try {
      execFileSync("hdiutil", ["detach", `/Volumes/${vol}`, "-force"], { stdio: "ignore" });
    } catch {
      /* not mounted */
    }
  }
}

function packDmg(appPath, dmgName, label) {
  console.log(`[finalize-mac] dmg ${label}: ${appPath}`);
  const stage = fs.mkdtempSync(path.join(os.tmpdir(), "ex-ai-mac-dmg-"));
  const rwDmg = path.join(os.tmpdir(), `ex-ai-mac-${Date.now()}-${process.pid}.dmg`);
  // arch별 볼륨명 — 동시/잔여 마운트 충돌 방지
  const volName = label.includes("silicon") ? "EX AI Chatbot Silicon" : "EX AI Chatbot Intel";
  try {
    fs.cpSync(appPath, path.join(stage, appName), { recursive: true });
    fs.copyFileSync(path.join(packagingMac, installCmdName), path.join(stage, installCmdName));
    fs.copyFileSync(path.join(packagingMac, guideName), path.join(stage, guideName));
    fs.chmodSync(path.join(stage, installCmdName), 0o755);
    // Applications 폴더 바로가기 (일반 dmg UX)
    try {
      fs.symlinkSync("/Applications", path.join(stage, "Applications"));
    } catch {
      /* ignore */
    }
    try {
      execFileSync("xattr", ["-cr", stage], { stdio: "ignore" });
    } catch {
      /* ignore */
    }

    const outPath = path.join(distDir, dmgName);
    if (fs.existsSync(outPath)) fs.unlinkSync(outPath);
    if (fs.existsSync(rwDmg)) fs.unlinkSync(rwDmg);

    detachStaleVolumes();

    // 읽기 전용 압축 dmg 생성 (electron-builder DMG 미사용 — hdiutil 경합 회피)
    // Finder/Spotlight가 잠깐 잡고 있으면 "리소스 사용 중"이 나므로 재시도한다.
    const createArgs = [
      "create",
      "-volname",
      volName,
      "-srcfolder",
      stage,
      "-ov",
      "-format",
      "UDZO",
      outPath,
    ];
    let lastErr = null;
    for (let attempt = 1; attempt <= 4; attempt += 1) {
      try {
        if (attempt > 1) {
          console.warn(`[finalize-mac] hdiutil create 재시도 ${attempt}/4 (${label})`);
          detachStaleVolumes();
          try {
            execFileSync("sleep", [String(1.5 * attempt)], { stdio: "ignore" });
          } catch {
            /* ignore */
          }
        }
        execFileSync("hdiutil", createArgs, { stdio: "inherit" });
        lastErr = null;
        break;
      } catch (e) {
        lastErr = e;
        const msg = String(e?.stderr || e?.message || e);
        const busy = /리소스 사용 중|Resource busy|Device busy|hdiutil/i.test(msg) || e?.status === 1;
        if (!busy || attempt === 4) break;
      }
    }
    if (lastErr) throw lastErr;

    const size = fs.statSync(outPath).size;
    console.log(`[finalize-mac] ✅ dmg ${dmgName} (${Math.round(size / 1024 / 1024)} MB)`);
    return true;
  } finally {
    fs.rmSync(stage, { recursive: true, force: true });
    try {
      if (fs.existsSync(rwDmg)) fs.unlinkSync(rwDmg);
    } catch {
      /* ignore */
    }
  }
}

if (!fs.existsSync(distDir)) {
  console.error("[finalize-mac] dist 없음");
  process.exit(1);
}

ensurePackagingFiles();

let done = 0;
for (const t of TARGETS) {
  const appPath = t.appDirs.find((p) => fs.existsSync(p));
  if (!appPath) {
    console.warn(`[finalize-mac] skip ${t.label}: .app 없음`);
    continue;
  }

  codesignApp(appPath, t.label);

  if (packDmg(appPath, t.dmgName, t.label)) done += 1;
  if (packZip(appPath, t.zipName, t.label)) done += 1;
}

// 빌더 raw zip/dmg 잔여 정리
for (const raw of fs.readdirSync(distDir)) {
  if (/^raw-mac-/.test(raw) && (raw.endsWith(".zip") || raw.endsWith(".dmg"))) {
    fs.unlinkSync(path.join(distDir, raw));
    console.log(`[finalize-mac] removed ${raw}`);
  }
}

if (done === 0) {
  console.error("[finalize-mac] 패키징할 Mac 산출물이 없습니다.");
  process.exit(1);
}