import { describe, expect, test } from 'bun:test'
import { parseSlashCommand } from '../slashCommandParsing'

describe('parseSlashCommand', () => {
  test('parses simple command', () => {
    const result = parseSlashCommand('/search foo bar')
    expect(result).toEqual({
      commandName: 'search',
      args: 'foo bar',
      isMcp: false,
    })
  })

  test('parses command without args', () => {
    const result = parseSlashCommand('/help')
    expect(result).toEqual({
      commandName: 'help',
      args: '',
      isMcp: false,
    })
  })

  test('parses MCP command', () => {
    const result = parseSlashCommand('/tool (MCP) arg1 arg2')
    expect(result).toEqual({
      commandName: 'tool (MCP)',
      args: 'arg1 arg2',
      isMcp: true,
    })
  })

  test('parses MCP command without args', () => {
    const result = parseSlashCommand('/tool (MCP)')
    expect(result).toEqual({
      commandName: 'tool (MCP)',
      args: '',
      isMcp: true,
    })
  })

  test('returns null for non-slash input', () => {
    expect(parseSlashCommand('hello')).toBeNull()
  })

  test('returns null for empty string', () => {
    expect(parseSlashCommand('')).toBeNull()
  })

  test('returns null for just slash', () => {
    expect(parseSlashCommand('/')).toBeNull()
  })

  test('trims whitespace before parsing', () => {
    const result = parseSlashCommand('  /search foo  ')
    expect(result!.commandName).toBe('search')
    expect(result!.args).toBe('foo')
  })
})