127 lines
6.5 KiB
Markdown
127 lines
6.5 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Commands
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```bash
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npm start # Run the Electron app in development
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npm run build # Build macOS app bundle (no DMG, arm64 + x64)
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npm run dist # Build and package as DMG for distribution
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./setup.sh # First-time setup: npm install + npm start
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```
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There are no tests or linting configured.
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## Architecture
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This is a macOS Electron desktop app for batch-renaming and moving photo files. It follows strict Electron security practices: `contextIsolation: true`, `nodeIntegration: false`.
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**Process boundary:** All filesystem access lives exclusively in `src/main/` (main process). The renderer never touches `fs` directly.
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### File structure
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```
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src/
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├── main/
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│ ├── index.js # Main process entry point; creates BrowserWindow, calls registerAll()
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│ └── ipc/
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│ ├── index.js # registerAll(mainWindow) — delegates to folder and files modules
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│ ├── folder.js # select-folder, list-directories, get/set-last-folder,
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│ │ # get/set-preview-on, get-home-dir, reveal-folder
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│ └── files.js # list-images, read-image, rename-files,
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│ # check-files-exist, move-files
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├── preload/
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│ └── index.js # Bridges IPC to window.api via contextBridge (isolated context)
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└── renderer/
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├── index.html # App shell; dark theme, CSS variables in :root, modal HTML
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├── style.css # All CSS
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├── state.js # Shared mutable state: files[], currentFolder, selectedIdxs, sortMode
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├── renderer.js # Entry point: init, loadFolder, sortFiles, keyboard shortcuts, startup
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├── ui.js # showLoading, hideLoading, setStatus, showToast
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├── grid.js # renderGrid, createCard, card UI update functions, showEmptyGrid
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├── rename.js # doRename + rename-conflict modal
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├── move.js # handleFolderDrop + move modals + _doMoveFiles
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└── handlers/
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├── drag-drop.js # Card reorder (single/multi) + drag-to-folder in sidebar
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├── file-explorer.js # Sidebar directory tree (lazy-load, expand/collapse)
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├── selection.js # Rubber-band, Shift-click, Cmd+click, resetAnchor
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├── pinch-zoom.js # Ctrl+scroll to resize thumbnails (CSS --thumb-size, 150–400px)
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└── image-preview.js # Hover preview overlay with circular loading indicator
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```
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### IPC surface
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Defined in `src/main/ipc/`, bridged via `src/preload/index.js` as `window.api`:
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| Channel | Direction | Description |
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|---|---|---|
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| `select-folder` | invoke | Opens native folder picker, returns path or null |
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| `list-images` | invoke | Reads directory, returns `{name, path, mtime}[]` filtered to image extensions, sorted by filename |
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| `read-image` | invoke | Reads file, returns base64 data URL for display |
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| `rename-files({folderPath, files, prefix, digits})` | invoke | Two-phase rename: temp names (crypto.randomUUID) first, then final names |
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| `check-files-exist(folderPath, names[])` | invoke | Returns subset of names that already exist in folderPath |
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| `move-files({targetFolder, files[]})` | invoke | Moves files; each file may have optional `newName`; handles cross-device (EXDEV) |
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| `list-directories(folderPath)` | invoke | Returns `{name, path, hasChildren}[]` subdirs, or `null` on access error |
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| `get-home-dir` | invoke | Returns `os.homedir()` |
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| `get-last-folder` / `set-last-folder` | invoke | Persists last opened folder in userData config.json |
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| `get-preview-on` / `set-preview-on` | invoke | Persists hover preview toggle state in userData config.json |
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| `reveal-folder` | invoke | Opens folder in Finder via `shell.openPath` |
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| `fullscreen-change` | push (main→renderer) | Sent on `enter-full-screen` / `leave-full-screen` window events |
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### Renderer (`src/renderer/`)
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Uses ES module imports (`type="module"`). No framework.
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**Dependency direction** (no cycles):
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```
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renderer.js → rename.js, move.js → grid.js → handlers/*
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↘ ↗
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ui.js
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```
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**State** (`src/renderer/state.js`):
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- `files[]` — ordered array of `{name, path, mtime}`; order determines rename sequence
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- `selectedIdxs` — `Set<number>` of selected card indices
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- `currentFolder` — active directory path
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- `sortMode` — `'name'` | `'date'` | `null`
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**Keyboard shortcuts:**
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- `O` — 폴더 열기
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- `S` — 이름 변경 실행
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- `A` — 전체 선택
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**Card selection** (`selection.js`):
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- Click — 단독 선택 (재클릭 시 해제)
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- Shift+Click — 범위 선택
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- Cmd+Click — 개별 토글
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- Rubber-band drag — 영역 선택 (rAF throttle 적용)
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- `resetAnchor()` — 그리드 재렌더 시 Shift 기준점 초기화 (grid.js에서 호출)
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**Drag-and-drop** (`drag-drop.js`):
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- 그리드 내: 카드 순서 재배치 (single/multi)
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- 사이드바 폴더로: 선택된 파일들을 해당 폴더로 이동
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- 파일명 충돌 시 rename-and-move 모달 표시
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- 드래그 중 `.tree-row.drop-target` 클래스로 대상 폴더 하이라이트
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**Rename** (`rename.js`):
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- 선택된 파일만 이름 변경 (선택 없으면 전체)
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- 변경될 이름이 미선택 파일과 충돌하면 충돌 목록 모달 표시
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**Move** (`move.js`):
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- 충돌 없으면 즉시 이동
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- 충돌 있으면 prefix + digits 입력 모달 → 새 이름으로 이동
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- 새 이름도 충돌이면 에러 모달
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**Thumbnail loading:** `IntersectionObserver` with `rootMargin: '400px 0px'` — lazy load as cards enter viewport. `entry.target.isConnected` 체크로 폴더 전환 중 스탈 카드 방지. Drag reorder remaps card elements via `card.dataset.filepath` to avoid re-fetching.
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**Hover preview** (`image-preview.js`): 1초 지연 후 전체 크기 팝업. 썸네일 캐시 우선 사용. 상태는 config.json에 영속.
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**Sidebar tree** (`file-explorer.js`): Lazy-load 자식 폴더. 접근 불가 폴더는 `null` 반환 → "접근 불가" 표시. 행 클릭 시 항상 펼침, 화살표 클릭 시 토글.
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**Styling:** CSS는 `src/renderer/style.css`에 집중. Dark theme, CSS variables in `:root`. macOS traffic-light은 `header`의 `-webkit-app-region: drag`.
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**Build output:** `electron-builder` targets DMG for arm64 and x64. The app icon must be at `assets/icon.icns`.
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**Config persistence:** `app.getPath('userData')/config.json`에 `lastFolder`, `previewOn` 저장.
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