1st commit

src/main.js

@@ -0,0 +1,119 @@
+const { app, BrowserWindow, ipcMain, dialog, shell } = require('electron');
+const path = require('path');
+const fs = require('fs');
+
+let mainWindow;
+
+function createWindow() {
+  mainWindow = new BrowserWindow({
+    width: 1200,
+    height: 820,
+    minWidth: 900,
+    minHeight: 600,
+    titleBarStyle: 'hiddenInset',
+    backgroundColor: '#0f0f17',
+    webPreferences: {
+      preload: path.join(__dirname, 'preload.js'),
+      contextIsolation: true,
+      nodeIntegration: false,
+    },
+    show: false,
+  });
+
+  mainWindow.loadFile(path.join(__dirname, 'index.html'));
+
+  mainWindow.once('ready-to-show', () => {
+    mainWindow.show();
+  });
+}
+
+app.whenReady().then(createWindow);
+
+app.on('window-all-closed', () => {
+  if (process.platform !== 'darwin') app.quit();
+});
+
+app.on('activate', () => {
+  if (BrowserWindow.getAllWindows().length === 0) createWindow();
+});
+
+// ── IPC 핸들러 ──────────────────────────────────────
+
+ipcMain.handle('select-folder', async () => {
+  const result = await dialog.showOpenDialog(mainWindow, {
+    properties: ['openDirectory'],
+    title: '이미지 폴더 선택',
+  });
+  if (result.canceled) return null;
+  return result.filePaths[0];
+});
+
+ipcMain.handle('list-images', async (_event, folderPath) => {
+  const EXTS = new Set(['.jpg', '.jpeg', '.png', '.gif', '.bmp', '.tiff', '.tif', '.webp', '.heic', '.heif']);
+  try {
+    const files = fs.readdirSync(folderPath)
+      .filter(f => EXTS.has(path.extname(f).toLowerCase()))
+      .map(f => {
+        const fullPath = path.join(folderPath, f);
+        const stat = fs.statSync(fullPath);
+        return { name: f, path: fullPath, mtime: stat.mtimeMs, size: stat.size };
+      })
+      .sort((a, b) => a.name.localeCompare(b.name, 'ko'));
+    return files;
+  } catch (e) {
+    return [];
+  }
+});
+
+ipcMain.handle('read-image', async (_event, filePath) => {
+  try {
+    const data = fs.readFileSync(filePath);
+    const ext = path.extname(filePath).toLowerCase().replace('.', '');
+    const mime = (ext === 'jpg' || ext === 'jpeg') ? 'jpeg'
+               : ext === 'png'  ? 'png'
+               : ext === 'gif'  ? 'gif'
+               : ext === 'webp' ? 'webp'
+               : 'jpeg';
+    return `data:image/${mime};base64,${data.toString('base64')}`;
+  } catch (e) {
+    return null;
+  }
+});
+
+ipcMain.handle('rename-files', async (_event, { folderPath, files, prefix, digits }) => {
+  const errors = [];
+  const pad = (n) => String(n + 1).padStart(digits, '0');
+
+  // 1단계: 임시 이름으로 이동 (충돌 방지)
+  const tmpMap = [];
+  for (let i = 0; i < files.length; i++) {
+    const src = files[i].path;
+    const ext = path.extname(files[i].name).toLowerCase();
+    const tmp = path.join(folderPath, `__tmp_rename_${i}_${Date.now()}${ext}`);
+    try {
+      fs.renameSync(src, tmp);
+      tmpMap.push({ tmp, ext, idx: i });
+    } catch (e) {
+      errors.push(`${files[i].name}: ${e.message}`);
+    }
+  }
+
+  // 2단계: 최종 이름으로 이동
+  const renamed = [];
+  for (const { tmp, ext, idx } of tmpMap) {
+    const newName = `${prefix}_${pad(idx)}${ext}`;
+    const dest = path.join(folderPath, newName);
+    try {
+      fs.renameSync(tmp, dest);
+      renamed.push({ oldPath: tmp, newPath: dest, newName });
+    } catch (e) {
+      errors.push(`${newName}: ${e.message}`);
+    }
+  }
+
+  return { renamed, errors };
+});
+
+ipcMain.handle('reveal-folder', async (_event, folderPath) => {
+  shell.openPath(folderPath);
+});