const { app, BrowserWindow, ipcMain, dialog, Menu, shell, clipboard } = require('electron');
app.name = 'Auto-Git';
const { exec } = require('child_process');
const { spawn } = require('child_process');
const path = require('path');
const fs = require('fs');
const Store = require('electron-store');
const simpleGit = require('simple-git');
//const fetch = require('node-fetch');
const chokidar = require('chokidar');

const store = new Store({
  defaults: {
    folders: [],
    selected: null,
    skymode: true,
    skipGitPrompt: true,
    intelligentCommitThreshold: 100
  }
});

// Map zum Speichern der Watcher pro Ordner
const repoWatchers = new Map();



// Debug Helper
function debug(msg) {
  console.log(`[DEBUG ${new Date().toISOString()}] ${msg}`);
}


/**
 * Erstellt das BrowserWindow und lädt index.html.
 * Gibt das Window-Objekt zurück.
 */
function createWindow() {
  const win = new BrowserWindow({
    width: 900,
    height: 600,
    minWidth: 600,
    minHeight: 400,
    title: 'Auto-Git',
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      contextIsolation: true
    }
  });
  win.loadFile('index.html');
  return win;
}


// Settings-Fenster
let settingsWin;
function openSettings(win) {
  if (settingsWin) {
    settingsWin.focus();
    return;
  }
 settingsWin = new BrowserWindow({
   parent: win,
   modal: true,
   width: 400,
   height: 300, 
   resizable: false,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      contextIsolation: true
    }
  });
  settingsWin.removeMenu();
  settingsWin.loadFile('settings.html');
  settingsWin.on('closed', () => settingsWin = null);
}


/**
 * Startet einen File-Watcher auf .git/refs/heads/master,
 * sendet bei Änderungen 'repo-updated' an den Renderer.
 */
function watchRepo(folder, win) {
  const gitHead = path.join(folder, '.git', 'refs', 'heads', 'master');
  const watcher = chokidar.watch(gitHead, { ignoreInitial: true });
  watcher.on('change', () => {
    win.webContents.send('repo-updated', folder);
  });
  repoWatchers.set(folder, watcher);
}

/**
 * Initiiert ein Git-Repo in `folder`, falls noch nicht vorhanden,
 * und erzeugt einen Initial-Commit mit Timestamp.
 */
async function initGitRepo(folder) {
  const git = simpleGit(folder);
  const gitDir = path.join(folder, '.git');
  if (!fs.existsSync(gitDir)) {
    await git.init();
    const message = `Initial commit (generated by auto-git)`;
    const readmePath = path.join(folder, 'README.md');
    fs.writeFileSync(readmePath, `# Projekt in ${path.basename(folder)}\n`);
    await git.add('./*');
    await git.commit(message);
  }
}


// Map für Monitoring-Watcher (nicht repoWatchers!)
const monitoringWatchers = new Map();

// Helper: Baut eine Commit-Message aus git.status()
function buildCommitMessageFromStatus(status, prefix = '[auto]') {
  const changes = [];
  status.not_added.forEach(f => changes.push(`[add] ${f}`));
  status.created.forEach(f   => changes.push(`[add] ${f}`));
  status.modified.forEach(f  => changes.push(`[change] ${f}`));
  status.deleted.forEach(f   => changes.push(`[unlink] ${f}`));
  status.renamed.forEach(r   => changes.push(`[rename] ${r.from} → ${r.to}`));
  return prefix + '\n' + changes.map(l => ` ${l}`).join('\n');
}

function startMonitoringWatcher(folderPath, win) {
  if (monitoringWatchers.has(folderPath)) return;
  const watcher = chokidar.watch(folderPath, {
    ignored: /(^|[\/\\])\..|node_modules|\.git/,
    ignoreInitial: true,
    persistent: true,
    depth: 99,
    awaitWriteFinish: { stabilityThreshold: 300, pollInterval: 100 }
  });

  // Initialer Commit
  (async () => {
    debug(`[MONITOR] Starte initialen Commit-Check für ${folderPath}`);
    const git = simpleGit(folderPath);
    const status = await git.status();
    if (
      status.not_added.length > 0 ||
      status.created.length > 0 ||
      status.modified.length > 0 ||
      status.deleted.length > 0 ||
      status.renamed.length > 0
    ) {
      const msg = buildCommitMessageFromStatus(status, 'auto-git: ');
      const did = await autoCommit(folderPath, msg);
      if (did) {
        win.webContents.send('repo-updated', folderPath);
        debug(`[MONITOR] Initialer Auto-Commit für ${folderPath} durchgeführt:\n${msg}`);
      }
    }
  })();

  // Bei jedem Event → status neu holen, Message wie beim initialen Check bauen
  watcher.on('all', async () => {
    const git = simpleGit(folderPath);
    const status = await git.status();
    if (
      status.not_added.length > 0 ||
      status.created.length > 0 ||
      status.modified.length > 0 ||
      status.deleted.length > 0 ||
      status.renamed.length > 0
    ) {
      const msg = buildCommitMessageFromStatus(status, 'auto-git: ');
      await autoCommit(folderPath, msg);
      win.webContents.send('repo-updated', folderPath);
    }
  });

  monitoringWatchers.set(folderPath, watcher);
  debug(`[MONITOR] Watcher aktiv für ${folderPath}`);
}

function stopMonitoringWatcher(folderPath) {
  const watcher = monitoringWatchers.get(folderPath);
  if (watcher) {
    watcher.close();
    monitoringWatchers.delete(folderPath);
    debug(`[MONITOR] Watcher gestoppt für ${folderPath}`);
  }
}



// ---- Rewrite Git Messages with LLM generated messages ----


// 1. Commits & Diffs für LLM sammeln
async function getCommitsForLLM(folderPath, hashes) {
  const git = simpleGit(folderPath);
  const commits = [];
  for (const hash of hashes) {
    const diff = await git.diff([`${hash}^!`]);
    const msg  = (await git.show(['-s', '--format=%B', hash])).trim();
    commits.push({
      hash,
      message: msg,
      diff
    });
  }
  return commits;
}

async function getPrompt(folderPath, hashes) {
  const commits = await getCommitsForLLM(folderPath, hashes);

  if (commits.length === 1) {
    // Only one commit: Prompt LLM for a message just for this diff.
    const diff = commits[0].diff;
    return `You're a professional programmer who writes git commit messages all day.
Generate a concise git commit message for these changes:

    ${diff}

--------------------------------------
    
Answer VERY BRIEFLY. Don't give any feedback on the code, just analyze what changed and write the git commit message. Keep it short! A commit message MUST BE STRAIGHT TO THE POINT!
Also reply to my message, just give me the commit message.`;
      } else if (commits.length > 1) {
    // Multiple commits: Squash them, give all diffs as a big change.
    const combinedDiffs = commits.map(c => c.diff).join('\n\n');
    return `You're a professional programmer who writes git commit messages all day.
Analyze the following code changes (from multiple commits). To squash them into a single commit I need a concise git commit message from you describing the changes in a single sentence.
Here are the combined diffs:
    ${combinedDiffs}

--------------------------------------

Even if this might seem like a lot of code, I need you to answer VERY BRIEFLY. A git commit message to be precise is what I need from you, to protocol these changes.
Don't give any feedback on the code! Just analyze what changed and write the git commit message. Keep it short! A commit message MUST BE STRAIGHT TO THE POINT!
Don't reply to my message, just give me the commit message.`;
  } else {
    throw new Error('No commits found for LLM prompt.');
  }
}


// 3. LLM Streaming Call
async function streamLLMCommitMessages(prompt, onDataChunk) {
  console.log(prompt);
  const response = await fetch('http://localhost:11434/api/generate', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
      model: 'qwen2.5-coder:32b',
      prompt: prompt,
      stream: true
    })
  });

  if (!response.body) throw new Error('No stream returned');
  const reader = response.body.getReader();
  const decoder = new TextDecoder();

  let fullOutput = '';
  let done = false;
  while (!done) {
    const { value, done: streamDone } = await reader.read();
    done = streamDone;
    if (value) {
      const chunk = decoder.decode(value, { stream: true });
      for (const line of chunk.split('\n')) {
        if (!line.trim()) continue;
        try {
          const obj = JSON.parse(line);
          if (obj.response) {
            fullOutput += obj.response;
            if (onDataChunk) onDataChunk(obj.response);
          }
          if (obj.done) break;
        } catch (e) {
          // ignore malformed chunk
        }
      }
    }
  }
  return fullOutput;
}

function cleanRebaseDirs(repoPath) {
  const gitDir = path.join(repoPath, '.git');
  const rebaseDirs = ['rebase-merge', 'rebase-apply'];
  for (const dir of rebaseDirs) {
    const fullPath = path.join(gitDir, dir);
    if (fs.existsSync(fullPath)) {
      fs.rmSync(fullPath, { recursive: true, force: true });
      console.log(`[AutoGit] Entfernt alte ${dir}-Direktory: ${fullPath}`);
    }
  }
}

const fs = require('fs');
const path = require('path');
const os = require('os');
const { spawn } = require('child_process');
const simpleGit = require('simple-git');

function cleanRebaseDirs(repoPath) {
  const dirs = ['rebase-merge', 'rebase-apply'];
  for (const d of dirs) {
    const p = path.join(repoPath, '.git', d);
    if (fs.existsSync(p)) fs.rmSync(p, { recursive: true, force: true });
  }
}

async function squashCommitMessages(repoPath, commitMessage, hashes) {
  cleanRebaseDirs(repoPath);
  const git = simpleGit(repoPath);

  // 1. Find the oldest commit in the sequence
  const allCommits = (await git.log()).all;
  const hashIdxs = hashes.map(h => allCommits.findIndex(c => c.hash.startsWith(h)));
  if (hashIdxs.includes(-1)) throw new Error('Some commit(s) not found.');
  const oldestIdx = Math.min(...hashIdxs);

  // The commit *before* the oldest in the list is the "upstream" for rebase
  const rebaseFrom = oldestIdx + 1 < allCommits.length ? allCommits[oldestIdx + 1].hash : '--root';

  // 2. Collect all commits to squash (in reverse = chronological)
  const toSquash = allCommits.slice(0, oldestIdx + 1).reverse();
  if (toSquash.length < 2) throw new Error("Need at least 2 commits to squash.");

  const first = toSquash[0];
  const rest = toSquash.slice(1);

  const todoLines = [
    `pick ${first.hash} ${first.message.split('\n')[0]}`,
    ...rest.map(c => `squash ${c.hash} ${c.message.split('\n')[0]}`)
  ];

  // Write the todo file
  const tmpdir = os.tmpdir();
  const todoPath = path.join(tmpdir, `git-rebase-todo-${Date.now()}.txt`);
  fs.writeFileSync(todoPath, todoLines.join('\n'));

  // Create a temporary script for SEQUENCE_EDITOR
  const seqScript = path.join(tmpdir, `llm-seq-edit-${Date.now()}.sh`);
  fs.writeFileSync(seqScript, `#!/bin/sh\ncp "${todoPath}" "$1"\n`);
  fs.chmodSync(seqScript, 0o755);

  // Create a temporary script for GIT_EDITOR (sets commit message)
  const msgScript = path.join(tmpdir, `llm-msg-edit-${Date.now()}.sh`);
  fs.writeFileSync(msgScript, `#!/bin/sh\necho "${commitMessage.replace(/"/g, '\\"')}" > "$1"\n`);
  fs.chmodSync(msgScript, 0o755);

  // Launch rebase
  await new Promise((resolve, reject) => {
    const proc = spawn('git', ['rebase', '-i', rebaseFrom], {
      cwd: repoPath,
      env: {
        ...process.env,
        GIT_SEQUENCE_EDITOR: seqScript,
        GIT_EDITOR: msgScript
      },
      stdio: 'inherit'
    });
    proc.on('exit', code => {
      try {
        fs.unlinkSync(todoPath);
        fs.unlinkSync(seqScript);
        fs.unlinkSync(msgScript);
      } catch {}
      if (code === 0) resolve();
      else reject(new Error('git rebase failed with exit code ' + code));
    });
  });
}

/**
 * Komplett-Workflow: Von Kandidaten bis Rewrite
 */

async function runLLMCommitPipeline(folderPath, hashes) {
  const prompt = await getPrompt(folderPath, hashes);
  const llmOutput = (await streamLLMCommitMessages(prompt, chunk => process.stdout.write(chunk))).trim();

  if (hashes.length === 1) {
    // For a single commit: amend it in-place
    const git = simpleGit(folderPath);
    await git.raw(['commit', '--amend', '-m', llmOutput, '--no-edit', '--allow-empty']);
  } else if (hashes.length > 1) {
    // For multiple commits: squash & set message
    await squashCommitMessages(folderPath, llmOutput, hashes);
  } else {
    throw new Error('No commits to rewrite.');
  }
}

async function autoCommit(folderPath, message) {
  const git = simpleGit(folderPath);
  const status = await git.status();
  if (
    status.not_added.length === 0 &&
    status.created.length   === 0 &&
    status.deleted.length   === 0 &&
    status.modified.length  === 0 &&
    status.renamed.length   === 0
  ) {
    debug('Auto-Commit: Keine Änderungen zum committen.');
    return false;
  }

  let currentBranch = null;
  try {
    currentBranch = (await git.revparse(['--abbrev-ref', 'HEAD'])).trim();
    debug(`[autoCommit] Aktueller Branch: ${currentBranch}`);
  } catch {
    debug('[autoCommit] HEAD ist detached.');
    currentBranch = null;
  }

  if (!currentBranch || currentBranch === 'HEAD') {
    // === Erweiterte Logs ===
    const headCommit = (await git.revparse(['HEAD'])).trim();
    let masterCommit = null;
    let hasMaster = false;
    try {
      masterCommit = (await git.revparse(['refs/heads/master'])).trim();
      hasMaster = true;
    } catch (e) {
      debug('[autoCommit] master branch existiert nicht.');
      masterCommit = null;
      hasMaster = false;
    }
    debug(`[autoCommit] HEAD:   ${headCommit}`);
    debug(`[autoCommit] master: ${masterCommit}`);

    if (hasMaster && headCommit === masterCommit) {
      // HEAD ist detached, zeigt aber exakt auf master-Tip → einfach auf master auschecken.
      await git.checkout('master');
      debug('[autoCommit] HEAD war detached, zeigte aber exakt auf master – jetzt zurück auf master.');
      // Nach dem Checkout nochmal aktuellen Branch loggen:
      currentBranch = (await git.revparse(['--abbrev-ref', 'HEAD'])).trim();
      debug(`[autoCommit] Nach checkout: Aktueller Branch: ${currentBranch}`);
      // Jetzt **NICHT** weiter zur Umbenenn-Logik!
    } else if (hasMaster) {
      // HEAD ist detached, zeigt auf einen anderen Commit → backup master und neuen master-Branch
      const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
      const backupBranch = `backup-master-${timestamp}`;
      await git.branch(['-m', 'master', backupBranch]);
      debug(`[autoCommit] Alter master in ${backupBranch} umbenannt.`);
      await git.checkout(['-b', 'master']);
      debug('[autoCommit] Neuer master-Branch erstellt und ausgecheckt.');
      currentBranch = 'master';
    } else {
      // Kein master vorhanden (erstmalig)
      await git.checkout(['-b', 'master']);
      debug('[autoCommit] Kein master-Branch vorhanden, neuer master erstellt.');
      currentBranch = 'master';
    }
  }

  // --- Zeilenzählung ---
  let diffOutput = await git.diff(['--numstat']);
  // Zeilensumme berechnen:
  let changedLines = 0;
  for (let line of diffOutput.split('\n')) {
    const match = line.match(/^(\d+|\-)\s+(\d+|\-)\s+(.*)$/);
    if (match) {
      const added = match[1] === '-' ? 0 : parseInt(match[1], 10);
      const deleted = match[2] === '-' ? 0 : parseInt(match[2], 10);
      changedLines += added + deleted;
    }
  }

  // Folders aus Store holen
  let folders = store.get('folders') || [];
  let idx = folders.findIndex(f => f.path === folderPath);
  if (idx !== -1) {
    folders[idx].linesChanged = (folders[idx].linesChanged || 0) + changedLines;
    folders[idx].llmCandidates = folders[idx].llmCandidates || [];

    // ===> WICHTIG: Wir commiten ja jetzt, daher merken wir uns gleich die neue Commit-Hash
    // Vor git.commit: Merke alten HEAD
    const oldHead = (await git.revparse(['HEAD'])).trim();

    // Stagen & Committen
    await git.add(['-A']);
    debug('[autoCommit] Alle Änderungen gestaged.');
    await git.commit(message || '[auto]');
    debug('[autoCommit] Commit erfolgreich erstellt.');

    // Nach Commit: neuen HEAD ermitteln und in llmCandidates speichern
    const newHead = (await git.revparse(['HEAD'])).trim();
    folders[idx].llmCandidates = folders[idx].llmCandidates || [];
    folders[idx].llmCandidates.push(newHead);

    // Threshold holen
    const threshold = store.get('intelligentCommitThreshold') || 150;
    if (folders[idx].linesChanged >= threshold) {
      debug('Congratulations! You changed enough lines of code :)');
      // **Hier: LLM-Workflow starten**
      //await runLLMCommitPipeline(folderPath, folders[idx].llmCandidates, win);
      folders[idx].linesChanged = 0;
      const candidates = folders[idx].llmCandidates;
      folders[idx].llmCandidates = [];
      await runLLMCommitPipeline(folderPath, candidates);
      // Reset danach:
      //store.set('folders', folders);
    }

    // Folder-Objekt speichern
    store.set('folders', folders);
  } else {
    // Folder not found! (Debug)
    debug(`[autoCommit] Warning: Folder ${folderPath} not found in store`);
  }
}

app.whenReady().then(() => {
  const win = createWindow();

  // Menüs
  
  const menu = Menu.buildFromTemplate([
    {
      role: 'appMenu',
      submenu: [
        { label: 'Settings', click: () => openSettings(win) },
        { role: 'quit', label: 'Quit' }
      ]
    },
    { role: 'editMenu' }  // <-- hiermit aktivierst du Copy/Paste via Ctrl+C / Cmd+C
  ]);
  Menu.setApplicationMenu(menu);


  // 1) Beim Start bereits gespeicherte Ordner überwachen und monitoren
  const folders = store.get('folders') || [];
  folders.forEach(folderObj => {
    if (fs.existsSync(path.join(folderObj.path, '.git', 'refs', 'heads', 'master'))) {
      watchRepo(folderObj.path, win);
    }
    if (folderObj.monitoring) {
      startMonitoringWatcher(folderObj.path, win);
    }
  });

  // 2) IPC-Handler
  ipcMain.handle('get-selected', () => {
    const folders = store.get('folders') || [];
    const selectedPath = store.get('selected');
    return folders.find(f => f.path === selectedPath) || null;
  });

  ipcMain.handle('set-selected', (_e, folderObjOrPath) => {
    // Akzeptiert sowohl String (legacy) als auch Objekt:
    const folderPath = typeof folderObjOrPath === 'string'
      ? folderObjOrPath
      : folderObjOrPath.path;
    store.set('selected', folderPath);
    const folders = store.get('folders') || [];
    return folders.find(f => f.path === folderPath) || null;
  });

  // Liste aller Folders
  ipcMain.handle('get-folders', () => store.get('folders'));


  // Ordner hinzufügen: Open-Dialog, init, Store-Update, watchen, monitoren
  ipcMain.handle('add-folder', async () => {
    const { canceled, filePaths } = await dialog.showOpenDialog({
      properties: ['openDirectory']
    });
    if (canceled || !filePaths[0]) {
      return store.get('folders');
    }
    const newFolder = filePaths[0];
    await initGitRepo(newFolder);
    let folders = store.get('folders') || [];
    let folderObj = folders.find(f => f.path === newFolder);
    if (!folderObj) {
      folderObj = { path: newFolder, monitoring: true, linesChanged: 0, llmCandidates: [] };
      folders.push(folderObj);
      store.set('folders', folders);
    }
    store.set('selected', newFolder);
    watchRepo(newFolder, win);
    startMonitoringWatcher(newFolder, win);
    return store.get('folders');
  });
/*
  ipcMain.handle('add-folder', async () => {
    const { canceled, filePaths } = await dialog.showOpenDialog({ properties: ['openDirectory'] });
    if (canceled || !filePaths[0]) return store.get('folders');
    const newFolder = filePaths[0];

    // Repo initialisieren
    await initGitRepo(newFolder);

    // Im Store ablegen
    const current = store.get('folders');
    if (!current.includes(newFolder)) {
      store.set('folders', [...current, newFolder]);
    }
    store.set('selected', newFolder);

    // und watchen
    watchRepo(newFolder, win);

    return store.get('folders');
  });
*/
  // Ordner entfernen: Watcher schließen, Store-Update
  ipcMain.handle('remove-folder', (_e, folderObj) => {
    const folders = store.get('folders') || [];
    const updated = folders.filter(f => f.path !== folderObj.path);
    store.set('folders', updated);
    if (store.get('selected') === folderObj.path) store.set('selected', null);
    stopMonitoringWatcher(folderObj.path);
    const watcher = repoWatchers.get(folderObj.path);
    if (watcher) watcher.close(), repoWatchers.delete(folderObj.path);
    return updated;
  });

/*
  ipcMain.handle('get-selected', () => store.get('selected'));
  ipcMain.handle('set-selected', (_e, folderPath) => {
    store.set('selected', folderPath);
    return folderPath;
  });
  */
  /*
  ipcMain.handle('remove-folder', (_e, folder) => {
    const watcher = repoWatchers.get(folder);
    if (watcher) {
      watcher.close();
      repoWatchers.delete(folder);
    }
    const updated = store.get('folders').filter(f => f !== folder);
    store.set('folders', updated);
    if (store.get('selected') === folder) {
      store.set('selected', null);
    }
    return updated;
  });
  */


  // Zähle Commits
    ipcMain.handle('get-commit-count', async (_e, folderObj) => {
    const git = simpleGit(folderObj.path);
    const log = await git.log();
    return log.total; // Anzahl der Commits
  });

  // Prüfe, ob es ungestagte Änderungen gibt
  ipcMain.handle('has-diffs', async (_e, folderObj) => {
    const git = simpleGit(folderObj.path);
    const status = await git.status();
    // modified, not_added, deleted, etc.
    return status.files.length > 0;
  });

  // Entferne das .git-Verzeichnis
  ipcMain.handle('remove-git-folder', async (_e, folderObj) => {
    const gitDir = path.join(folderObj.path, '.git');
    if (fs.existsSync(gitDir)) {
      await fs.promises.rm(gitDir, { recursive: true, force: true });
    }
    return;
  });

/*
  // Selected
  ipcMain.handle('get-selected', () => store.get('selected'));
  ipcMain.handle('set-selected', (_e, folder) => {
    store.set('selected', folder);
    return folder;
  });
  */

  // Commits holen
  ipcMain.handle('get-commits', async (_e, folderObj) => {
    const git = simpleGit(folderObj.path);
    // alle Commits holen
    const log = await git.log(['--all']);
    // aktuellen HEAD‐Hash ermitteln
    const fullHead = (await git.revparse(['--verify', 'HEAD'])).trim();
    const head     = fullHead.substring(0, 7);
    return {
      head, 
      commits: log.all.map(c => ({
        hash:    c.hash.substring(0, 7),
        date:    c.date,
        message: c.message
      }))
    };
  });

  // Diff
  ipcMain.handle('diff-commit', async (_e, folderObj, hash) => {
    const git = simpleGit(folderObj.path);
    return git.diff([`${hash}^!`]);
  });

  // Revert
  ipcMain.handle('revert-commit', async (_e, folderObj, hash) => {
    const git = simpleGit(folderObj.path);
    await git.revert(hash, ['--no-edit']);
  });
//yo
  /**
   * Checkt das Arbeitsverzeichnis auf exakt den Zustand von `hash` aus.
   */
  ipcMain.handle('checkout-commit', async (_e, folderObj, hash) => {
    const git = simpleGit(folderObj.path);
    // clean mode: alle lokalen Veränderungen verwerfen
    await git.checkout([hash, '--force']);
  });


  // Snapshot
  ipcMain.handle('snapshot-commit', async (_e, folderObj, hash) => {
    const { canceled, filePaths } = await dialog.showOpenDialog({
      title: 'Ordner auswählen zum Speichern des Snapshots',
      properties: ['openDirectory']
    });
    if (canceled || !filePaths[0]) return;
    const outDir   = filePaths[0];
    const baseName = path.basename(folderObj.path);
    const filePath = path.join(outDir, `${baseName}-${hash}.zip`);
    return new Promise((resolve, reject) => {
      exec(
        `git -C "${folderObj.path}" archive --format zip --output "${filePath}" ${hash}`,
        err => err ? reject(err) : resolve(filePath)
      );
    });
  });


   // IPC für skymode
  ipcMain.handle('get-skymode', () => store.get('skymode'));
  ipcMain.handle('set-skymode', (_e, val) => {
    store.set('skymode', val);
    // sende an alle Fenster
    BrowserWindow.getAllWindows().forEach(win => {
      win.webContents.send('skymode-changed', val);
    });
  });
  ipcMain.handle('get-skip-git-prompt', ()    => store.get('skipGitPrompt'));
  ipcMain.handle('set-skip-git-prompt', (_e,val) => store.set('skipGitPrompt', val));


  // Auto-Verzeichnisstruktur
  const IGNORED_NAMES = [
    '.DS_Store', 'node_modules', '.git', 'dist', 'build',
    '.cache', 'out', '.venv', '.mypy_cache', '__pycache__', 'package-lock.json'
  ];

  function isIgnored(name) {
    return IGNORED_NAMES.includes(name);
  }

  function walkDir(base, rel = '.') {
    const full = path.join(base, rel);
    let list = [];
    try {
      fs.readdirSync(full, { withFileTypes: true }).forEach(dirent => {
        if (isIgnored(dirent.name)) return;
        const entry = path.join(rel, dirent.name);
        if (dirent.isDirectory()) {
          list.push({ name: dirent.name, type: 'dir', children: walkDir(base, entry) });
        } else {
          list.push({ name: dirent.name, type: 'file' });
        }
      });
    } catch (e) {}
    return list;
  }

  ipcMain.handle('get-folder-tree', async (_e, folderPath) => {
    try {
      return walkDir(folderPath, '.');
    } catch {
      return [];
    }
  });




  ipcMain.handle('commit-current-folder', async (_e, folderObj, message) => {
    folder = folderObj.path;
    try {
      debug(`Commit-Vorgang für ${folder} gestartet…`);
      const git = simpleGit(folder);

      // Prüfe: Gibt es was zu committen?
      const status = await git.status();
      if (
        status.not_added.length === 0 &&
        status.created.length   === 0 &&
        status.deleted.length   === 0 &&
        status.modified.length  === 0 &&
        status.renamed.length   === 0
      ) {
        debug('Nichts zu committen.');
        return { success: false, error: 'Nichts zu committen.' };
      }

      // HEAD-Status prüfen
      let currentBranch = null;
      try {
        currentBranch = (await git.revparse(['--abbrev-ref', 'HEAD'])).trim();
        debug(`Aktueller Branch: ${currentBranch}`);
      } catch (err) {
        debug('HEAD ist detached.');
      }

      // Falls detached, **jetzt erst** alten Branch umbenennen und neuen master erzeugen
      if (!currentBranch || currentBranch === 'HEAD') {
        // HEAD ist detached, prüfe ob HEAD auf dem Tip von master ist!
        const headCommit = (await git.revparse(['HEAD'])).trim();
        let masterCommit = null;
        let hasMaster = false;
        try {
          masterCommit = (await git.revparse(['refs/heads/master'])).trim();
          hasMaster = true;
        } catch (e) {
          masterCommit = null; //wawa
          hasMaster = false;
        }

        if (hasMaster && headCommit === masterCommit) {
          // HEAD ist detached, aber zeigt exakt auf master!
          await git.checkout('master');
          debug('[autoCommit] HEAD war detached, zeigte aber exakt auf master – jetzt zurück auf master.');
          // **Return nicht vergessen, sonst geht der Branch-Move weiter**
          // ----> Das ist die Zeile die du wahrscheinlich vergessen hast!
          // Beende hier die Branch-Logik
          return { success: true };
        }b

        // Ansonsten wie gehabt:
        if (hasMaster) {
          // HEAD ist detached, zeigt nicht auf master -> backup + neuer master
          const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
          const backupBranch = `backup-master-${timestamp}`;
          await git.branch(['-m', 'master', backupBranch]);
          debug(`[autoCommit] Alter master in ${backupBranch} umbenannt.`);
          await git.checkout(['-b', 'master']);
          debug('[autoCommit] Neuer master-Branch erstellt und ausgecheckt.');
        } else {
          // Kein master vorhanden (erstmalig)
          await git.checkout(['-b', 'master']);
          debug('[autoCommit] Kein master-Branch vorhanden, neuer master erstellt.');
        }
      }

      await git.add(['-A']);
      debug('Alle Änderungen gestaged.');
      await git.commit(message || 'test');
      debug('Commit erfolgreich erstellt.');
      // Push hier ggf. noch auskommentiert lassen

      return { success: true };
    } catch (err) {
      debug(`FEHLER beim Commit: ${err.message}`);
      return { success: false, error: err.message };
    }
  });

  ipcMain.handle('set-monitoring', async (_e, folderPath, monitoring) => {
    let folders = store.get('folders') || [];
    folders = folders.map(f =>
      f.path === folderPath ? { ...f, monitoring } : f
    );
    store.set('folders', folders);
    debug(`[STORE] Monitoring für ${folderPath}: ${monitoring}`);
    // Monitoring-Watcher starten/stoppen → gleich mehr dazu
    if (monitoring) {
      startMonitoringWatcher(folderPath, win);
    } else {
      stopMonitoringWatcher(folderPath);
    }
    return monitoring;
  });

  ipcMain.handle('get-intelligent-commit-threshold', () => store.get('intelligentCommitThreshold'));
  ipcMain.handle('set-intelligent-commit-threshold', (_e, value) => {
    store.set('intelligentCommitThreshold', value);
  });



  // … Ende der IPC-Handler …
});

ipcMain.on('show-folder-context-menu', (event, folderPath) => {
  const win = BrowserWindow.fromWebContents(event.sender);
  const template = [
    {
      label: 'Copy Folder Path',
      click: () => {
        clipboard.writeText(folderPath);
      }
    },
    {
      label: 'Open Folder',
      click: () => {
        // öffnet den Ordner in der nativen Dateiansicht
        shell.openPath(folderPath);
      }
    }
  ];
  const menu = Menu.buildFromTemplate(template);
  menu.popup({ window: win });
}); 

// clean up on exit
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') app.quit();
});