#!/usr/bin/env node
// Build the NovaSonic Android APK and upload it to the fixed Gitea release ("apk-latest"), replacing
// the previous .apk asset — so the web "Android App" download button always serves the latest build.
//
// One command after your changes:   npm run publish-apk
//
// Config (env, or a gitignored scripts/.env.release file with KEY=VALUE lines):
//   GITEA_URL     internal/LAN Gitea base reachable from THIS machine, e.g. http://192.168.1.10:3000
//   GITEA_REPO    owner/repo, e.g. Docker/NovaSonic
//   GITEA_TOKEN   Gitea token with write access to the repo (repo/releases)
//   GITEA_APK_TAG fixed release tag (default: apk-latest)
//   APK_GRADLE_TASK  gradle task (default: assembleDebug — installable; release is unsigned here)
//   APK_FILE         override the built APK path if you use a custom task
//
// The debug build is used by default because the release build type has no signingConfig yet, so a
// release APK would be unsigned and refuse to install. Same dev machine ⇒ stable debug key ⇒ updates
// install over each other. Add a keystore + signingConfig later to switch APK_GRADLE_TASK=assembleRelease.

import { spawnSync } from 'node:child_process';
import { readFileSync, writeFileSync, existsSync } from 'node:fs';
import { fileURLToPath } from 'node:url';
import { dirname, join, resolve } from 'node:path';

const root = resolve(dirname(fileURLToPath(import.meta.url)), '..');

// ── tiny .env.release loader (never committed) ───────────────────────────────
const envFile = join(root, 'scripts', '.env.release');
if (existsSync(envFile)) {
  for (const line of readFileSync(envFile, 'utf8').split('\n')) {
    const m = line.match(/^\s*([A-Z_][A-Z0-9_]*)\s*=\s*(.*)\s*$/i);
    if (m && !(m[1] in process.env)) process.env[m[1]] = m[2].replace(/^["']|["']$/g, '');
  }
}

const GITEA_URL   = (process.env.GITEA_URL || '').replace(/\/$/, '');
const GITEA_REPO  = process.env.GITEA_REPO || '';
const GITEA_TOKEN = process.env.GITEA_TOKEN || '';
const TAG         = process.env.GITEA_APK_TAG || 'apk-latest';
const TASK        = process.env.APK_GRADLE_TASK || 'assembleDebug';

function die(msg) { console.error(`\n✖ ${msg}`); process.exit(1); }
if (!GITEA_URL || !GITEA_REPO || !GITEA_TOKEN)
  die('GITEA_URL, GITEA_REPO und GITEA_TOKEN müssen gesetzt sein (env oder scripts/.env.release).');

const API = `${GITEA_URL}/api/v1/repos/${GITEA_REPO}`;
const authHeaders = { Authorization: `token ${GITEA_TOKEN}` };

// ── bump versionCode + read versionName from the Gradle config ───────────────
// The in-app updater compares versionCode, so every published build MUST increment it — we do that
// here automatically (pass --version X.Y to also set the versionName). Commit the changed
// build.gradle.kts afterwards so the repo reflects what's live.
const gradlePath = join(root, 'android', 'app', 'build.gradle.kts');
let gradle = readFileSync(gradlePath, 'utf8');
const curCode = parseInt(gradle.match(/versionCode\s*=\s*(\d+)/)?.[1] || '0', 10);
const versionCode = curCode + 1;
const versionArg = process.argv.slice(2).find(a => a.startsWith('--version='))?.split('=')[1]
  || (process.argv.includes('--version') ? process.argv[process.argv.indexOf('--version') + 1] : null);
let version = versionArg || gradle.match(/versionName\s*=\s*"([^"]+)"/)?.[1] || `0.${versionCode}`;
gradle = gradle
  .replace(/versionCode\s*=\s*\d+/, `versionCode   = ${versionCode}`)
  .replace(/versionName\s*=\s*"[^"]*"/, `versionName   = "${version}"`);
writeFileSync(gradlePath, gradle);
console.log(`▶ versionCode → ${versionCode}, versionName → ${version}  (build.gradle.kts danach committen!)`);

const relBody = `versionCode=${versionCode}\nversionName=${version}`;

// ── 1) build ─────────────────────────────────────────────────────────────────
const isWin = process.platform === 'win32';
const gradlew = join(root, 'android', isWin ? 'gradlew.bat' : 'gradlew');
console.log(`▶ Baue APK: ${TASK} …`);
const build = spawnSync(gradlew, [`:app:${TASK}`], {
  cwd: join(root, 'android'), stdio: 'inherit', shell: isWin,
});
if (build.status !== 0) die('Gradle-Build fehlgeschlagen.');

// derive the APK path from the task (assembleDebug → debug/app-debug.apk)
const variant = TASK.replace(/^assemble/, '').toLowerCase() || 'debug';
const apkPath = process.env.APK_FILE
  || join(root, 'android', 'app', 'build', 'outputs', 'apk', variant, `app-${variant}.apk`);
if (!existsSync(apkPath)) die(`APK nicht gefunden: ${apkPath} (APK_FILE setzen, falls Task abweicht).`);
const apkBytes = readFileSync(apkPath);
console.log(`✓ Gebaut: ${apkPath} (${(apkBytes.length / 1048576).toFixed(1)} MB)`);

// ── 2) get-or-create the fixed release ───────────────────────────────────────
async function api(path, opts = {}) {
  const r = await fetch(`${API}${path}`, { ...opts, headers: { ...authHeaders, ...(opts.headers || {}) } });
  return r;
}

let rel;
{
  const r = await api(`/releases/tags/${encodeURIComponent(TAG)}`);
  if (r.status === 200) {
    rel = await r.json();
  } else if (r.status === 404) {
    console.log(`▶ Release "${TAG}" existiert nicht — lege sie an …`);
    const cr = await api('/releases', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ tag_name: TAG, target: 'main', name: `NovaSonic ${version}`, body: relBody }),
    });
    if (!cr.ok) die(`Release anlegen fehlgeschlagen: ${cr.status} ${await cr.text()}`);
    rel = await cr.json();
  } else {
    die(`Release-Abfrage fehlgeschlagen: ${r.status} ${await r.text()}`);
  }
}

// ── 3) delete old .apk assets, upload the new one ────────────────────────────
for (const a of rel.assets || []) {
  if (/\.apk$/i.test(a.name)) {
    const d = await api(`/releases/${rel.id}/assets/${a.id}`, { method: 'DELETE' });
    console.log(d.ok ? `✓ Altes Asset gelöscht: ${a.name}` : `⚠ Löschen von ${a.name} fehlgeschlagen (${d.status})`);
  }
}

const form = new FormData();
form.append('attachment', new Blob([apkBytes], { type: 'application/vnd.android.package-archive' }), 'NovaSonic.apk');
const up = await api(`/releases/${rel.id}/assets?name=NovaSonic.apk`, { method: 'POST', body: form });
if (!up.ok) die(`Upload fehlgeschlagen: ${up.status} ${await up.text()}`);

// keep the release title + versionCode body in sync
await api(`/releases/${rel.id}`, {
  method: 'PATCH',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ name: `NovaSonic ${version}`, body: relBody }),
}).catch(() => {});

console.log(`\n✔ NovaSonic ${version} hochgeladen → Release "${TAG}". Der Web-Button serviert jetzt diese APK.`);