import { describe, it, expect } from 'vitest'
import { DEFAULT_SETTINGS, snap, routerConfig, connectorConfig } from '@diagram/settings'

describe('settings', () => {
  it('snaps to grid when enabled', () => {
    const s = { ...DEFAULT_SETTINGS, gridSize: 20, snapToGrid: true }
    expect(snap(23, s)).toBe(20)
    expect(snap(31, s)).toBe(40)
  })

  it('does not snap when disabled', () => {
    const s = { ...DEFAULT_SETTINGS, snapToGrid: false }
    expect(snap(23, s)).toBe(23)
  })

  it('uses a grid-aligned manhattan router', () => {
    const r = routerConfig({ ...DEFAULT_SETTINGS, gridSize: 16 })
    expect(r.name).toBe('manhattan')
    expect(r.args.step).toBe(16)
  })

  it('switches connector between jumpover arc and rounded', () => {
    expect(connectorConfig({ ...DEFAULT_SETTINGS, jumpover: true }).name).toBe('jumpover')
    expect(connectorConfig({ ...DEFAULT_SETTINGS, jumpover: false }).name).toBe('rounded')
  })
})