improvements to the ui

src/main/config.ts

@@ -46,9 +46,44 @@ const THEME_TEMPLATE = `/* Helder theme — custom CSS applied OVER the built-in
 }
 `
 
+/** Recently-opened files, newest first. Local machine state — git-ignored. */
+const RECENT_FILE = 'recent.json'
+const MAX_RECENT = 100
+const GITIGNORE_BODY = `# Helder — local, machine-specific state (do not commit)\n${RECENT_FILE}\n`
+
 let current: HelderConfig = DEFAULTS
 let themeCss = ''
 
+/** Create `.helder/.gitignore` (ignoring recent.json) only when it's missing. */
+async function ensureGitignore(dir: string): Promise<void> {
+  const path = join(dir, '.gitignore')
+  try {
+    await readFile(path, 'utf8')
+  } catch {
+    await writeFile(path, GITIGNORE_BODY)
+  }
+}
+
+export async function getRecent(root: string): Promise<string[]> {
+  try {
+    const arr = JSON.parse(await readFile(join(root, '.helder', RECENT_FILE), 'utf8'))
+    return Array.isArray(arr) ? arr.filter((p): p is string => typeof p === 'string').slice(0, MAX_RECENT) : []
+  } catch {
+    return []
+  }
+}
+
+export async function setRecent(root: string, list: string[]): Promise<void> {
+  try {
+    const dir = join(root, '.helder')
+    await mkdir(dir, { recursive: true })
+    await ensureGitignore(dir)
+    await writeFile(join(dir, RECENT_FILE), JSON.stringify(list.slice(0, MAX_RECENT), null, 2) + '\n')
+  } catch {
+    /* read-only / inaccessible root — recents just won't persist */
+  }
+}
+
 function isPlainObject(v: unknown): v is Record<string, unknown> {
   return !!v && typeof v === 'object' && !Array.isArray(v)
 }
@@ -83,6 +118,8 @@ export async function resolveConfig(root: string): Promise<void> {
       themeCss = THEME_TEMPLATE
       await writeFile(join(dir, 'theme.css'), THEME_TEMPLATE)
     }
+
+    await ensureGitignore(dir)
   } catch {
     // Read-only / inaccessible root: fall back to built-in defaults.
     current = DEFAULTS