import { describe, expect, it } from 'vitest'
import { fileMention } from '../src/client/conversation-draft.ts'

describe('fileMention', () => {
  it('formats a plain relative file path as an @file mention', () => {
    expect(fileMention('src/client/paths.ts')).toEqual({
      mention: '@src/client/paths.ts',
      label: 'paths.ts',
    })
  })

  it('quotes a path containing whitespace and keeps the full basename', () => {
    expect(fileMention('docs/plan files/design notes.md')).toEqual({
      mention: '@"docs/plan files/design notes.md"',
      label: 'design notes.md',
    })
  })

  it('trims a trailing separator before deriving the basename', () => {
    expect(fileMention('src/client/')).toEqual({
      mention: '@src/client',
      label: 'client',
    })
  })

  it('rejects embedded quotes and control characters', () => {
    expect(fileMention('src/a"b.ts')).toBeUndefined()
    expect(fileMention('src/a\u0000b.ts')).toBeUndefined()
  })
})