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import { mkdir, readdir, rename, rm } from 'node:fs/promises';
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import { join } from 'node:path';
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import { getUserWorkspacesDir, getUserHomepageWorkspaceDir, getUserStateFile } from '@@/data-path';
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import type { KeyMapping, ResolveDirs } from './types';
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const RESERVED_DIRS = new Set(['screens']);
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export function resolveKey(dirs: ResolveDirs, key: string): KeyMapping | null {
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if (key === 'workspaces') return { file: join(dirs.wsDir, 'index.json') };
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if (key === 'ws-terminals-default') return { file: join(dirs.wsDir, 'default-terminals.json') };
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if (key === 'ws-host-terminals-default') return { file: join(dirs.wsDir, 'default-host-terminals.json') };
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// screens/{name} → screens/{name}/layout.json
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const screensMatch = key.match(/^screens\/(.+)$/);
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if (screensMatch) {
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const name = screensMatch[1]!;
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const dir = join(dirs.screensDir, name);
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return { file: join(dir, 'layout.json'), dir };
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}
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const layoutMatch = key.match(/^ws-layout-(.+)$/);
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if (layoutMatch) {
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const id = layoutMatch[1]!;
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const dir = join(dirs.wsDir, id);
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return { file: join(dir, 'layout.json'), dir };
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}
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const terminalsMatch = key.match(/^ws-terminals-(.+)$/);
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if (terminalsMatch) {
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const id = terminalsMatch[1]!;
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const dir = join(dirs.wsDir, id);
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return { file: join(dir, 'terminals.json'), dir };
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}
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const hostTerminalsMatch = key.match(/^ws-host-terminals-(.+)$/);
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if (hostTerminalsMatch) {
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const id = hostTerminalsMatch[1]!;
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const dir = join(dirs.wsDir, id);
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return { file: join(dir, 'host-terminals.json'), dir };
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}
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return null;
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}
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export async function readJsonFile(path: string): Promise<unknown | null> {
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const file = Bun.file(path);
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if (await file.exists()) return file.json();
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return null;
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}
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export async function writeJsonFile(path: string, data: unknown) {
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await Bun.write(path, JSON.stringify(data, null, 2));
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}
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export async function migrateFromState(email: string, dirs: ResolveDirs) {
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const stateFile = getUserStateFile(email);
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const file = Bun.file(stateFile);
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if (!(await file.exists())) return;
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const state = (await file.json()) as Record<string, unknown>;
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const wsKeys = Object.keys(state).filter(
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(k) => k === 'workspaces' || k.startsWith('ws-layout-') || k.startsWith('ws-terminals-') || k.startsWith('ws-host-terminals-'),
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);
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if (wsKeys.length === 0) return;
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await mkdir(dirs.wsDir, { recursive: true });
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for (const key of wsKeys) {
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const migratedKey = key === 'ws-layout-workspaces' ? 'screens/homepage' : key;
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const mapping = resolveKey(dirs, migratedKey);
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if (!mapping) continue;
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if (mapping.dir) await mkdir(mapping.dir, { recursive: true });
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await writeJsonFile(mapping.file, state[key]);
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}
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const cleaned = { ...state };
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for (const key of wsKeys) delete cleaned[key];
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await Bun.write(stateFile, JSON.stringify(cleaned, null, 2));
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}
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export async function migrateHomepageToScreens(dirs: ResolveDirs, email: string) {
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// Migrate from old ws-homepage/ dir to workspaces/screens/homepage/
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const oldHomepageDir = getUserHomepageWorkspaceDir(email);
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const layoutFile = join(oldHomepageDir, 'layout.json');
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if (!(await Bun.file(layoutFile).exists())) return;
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const targetDir = join(dirs.screensDir, 'homepage');
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await mkdir(targetDir, { recursive: true });
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for (const name of ['layout.json', 'terminals.json', 'host-terminals.json']) {
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const src = join(oldHomepageDir, name);
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if (await Bun.file(src).exists()) {
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await rename(src, join(targetDir, name));
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}
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}
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const remaining = await readdir(oldHomepageDir);
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if (remaining.length === 0) await rm(oldHomepageDir, { recursive: true, force: true });
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// Also migrate from workspaces/ws-homepage/ if it exists
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const oldWsHomepageDir = join(dirs.wsDir, 'ws-homepage');
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const oldWsLayout = join(oldWsHomepageDir, 'layout.json');
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if (!(await Bun.file(oldWsLayout).exists())) return;
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for (const name of ['layout.json', 'terminals.json', 'host-terminals.json']) {
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const src = join(oldWsHomepageDir, name);
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const target = join(targetDir, name);
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if (await Bun.file(src).exists() && !(await Bun.file(target).exists())) {
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await rename(src, target);
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}
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}
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const wsRemaining = await readdir(oldWsHomepageDir);
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if (wsRemaining.length === 0) await rm(oldWsHomepageDir, { recursive: true, force: true });
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}
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async function readWorkspaceDir(dirPath: string, id: string, result: Record<string, unknown>) {
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const layout = await readJsonFile(join(dirPath, 'layout.json'));
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if (layout !== null) result[`ws-layout-${id}`] = layout;
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const terminals = await readJsonFile(join(dirPath, 'terminals.json'));
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if (terminals !== null) result[`ws-terminals-${id}`] = terminals;
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const hostTerminals = await readJsonFile(join(dirPath, 'host-terminals.json'));
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if (hostTerminals !== null) result[`ws-host-terminals-${id}`] = hostTerminals;
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}
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async function readScreensDir(screensDir: string, result: Record<string, unknown>) {
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let entries: import('node:fs').Dirent[] = [];
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try {
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entries = await readdir(screensDir, { withFileTypes: true });
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} catch {
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return;
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}
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for (const entry of entries) {
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if (!entry.isDirectory()) continue;
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const layout = await readJsonFile(join(screensDir, entry.name, 'layout.json'));
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if (layout !== null) result[`screens/${entry.name}`] = layout;
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}
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}
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export async function readAllWorkspacesState(dirs: ResolveDirs): Promise<Record<string, unknown>> {
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const result: Record<string, unknown> = {};
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const indexData = await readJsonFile(join(dirs.wsDir, 'index.json'));
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if (indexData !== null) result['workspaces'] = indexData;
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const defaultTerminals = await readJsonFile(join(dirs.wsDir, 'default-terminals.json'));
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if (defaultTerminals !== null) result['ws-terminals-default'] = defaultTerminals;
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const defaultHostTerminals = await readJsonFile(join(dirs.wsDir, 'default-host-terminals.json'));
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if (defaultHostTerminals !== null) result['ws-host-terminals-default'] = defaultHostTerminals;
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// Read screens
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await readScreensDir(dirs.screensDir, result);
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// Read per-workspace subdirs
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let entries: import('node:fs').Dirent[] = [];
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try {
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entries = await readdir(dirs.wsDir, { withFileTypes: true });
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} catch {
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return result;
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}
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for (const entry of entries) {
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if (!entry.isDirectory() || RESERVED_DIRS.has(entry.name)) continue;
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await readWorkspaceDir(join(dirs.wsDir, entry.name), entry.name, result);
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}
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return result;
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}
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export function getDirs(email: string): ResolveDirs {
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return {
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wsDir: getUserWorkspacesDir(email),
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screensDir: join(getUserWorkspacesDir(email), 'screens'),
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};
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}
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