feat(app): add @ workspace file autocomplete in agent chat

2026-02-18 13:25:55 +07:00
parent b1955cf74d
commit d30bb84741
16 changed files with 7993 additions and 7680 deletions
@@ -0,0 +1,48 @@
+export interface FileMentionRange {
+  start: number
+  end: number
+  query: string
+}
+
+interface FindActiveFileMentionInput {
+  text: string
+  cursorIndex: number
+}
+
+interface ApplyFileMentionReplacementInput {
+  text: string
+  mention: FileMentionRange
+  relativePath: string
+}
+
+const INVALID_MENTION_QUERY_CHARS = /[\s\n\r\t"']/
+
+export function findActiveFileMention(input: FindActiveFileMentionInput): FileMentionRange | null {
+  const clampedCursor = Math.max(0, Math.min(input.cursorIndex, input.text.length))
+  const beforeCursor = input.text.slice(0, clampedCursor)
+
+  for (
+    let atIndex = beforeCursor.lastIndexOf('@');
+    atIndex >= 0;
+    atIndex = beforeCursor.lastIndexOf('@', atIndex - 1)
+  ) {
+    const query = beforeCursor.slice(atIndex + 1)
+    if (INVALID_MENTION_QUERY_CHARS.test(query)) {
+      continue
+    }
+    return {
+      start: atIndex,
+      end: clampedCursor,
+      query,
+    }
+  }
+
+  return null
+}
+
+export function applyFileMentionReplacement(input: ApplyFileMentionReplacementInput): string {
+  const safePath = input.relativePath.replace(/"/g, '\\"')
+  const before = input.text.slice(0, input.mention.start)
+  const after = input.text.slice(input.mention.end)
+  return `${before}"${safePath}"${after}`
+}