import { describe, expect, it } from 'vitest'
import {
  moveCategoryBy,
  moveToolBy,
  moveToolToCategory,
  relocateTool,
  reorderCategory,
} from '../src/lib/navigationOrder'
import type { NavigationConfig } from '../src/types'

const navigation: NavigationConfig = {
  version: 1,
  categories: [
    { id: 'one', tools: ['a', 'b', 'c'] },
    { id: 'two', tools: ['d', 'e'] },
    { id: 'three', tools: [] },
  ],
}

describe('navigation ordering', () => {
  it('moves categories upward and downward without mutating the input', () => {
    expect(moveCategoryBy(navigation, 0, 1).categories.map(({ id }) => id)).toEqual(['two', 'one', 'three'])
    expect(reorderCategory(navigation, 2, 0).categories.map(({ id }) => id)).toEqual(['three', 'one', 'two'])
    expect(navigation.categories.map(({ id }) => id)).toEqual(['one', 'two', 'three'])
  })

  it('moves tools upward and downward within a category', () => {
    expect(moveToolBy(navigation, 0, 0, 1).categories[0].tools).toEqual(['b', 'a', 'c'])
    expect(moveToolBy(navigation, 0, 2, -1).categories[0].tools).toEqual(['a', 'c', 'b'])
  })

  it('moves tools across categories and appends them at the end', () => {
    const crossList = relocateTool(navigation, { categoryIndex: 0, toolIndex: 1 }, { categoryIndex: 1, toolIndex: 1 })
    expect(crossList.categories[0].tools).toEqual(['a', 'c'])
    expect(crossList.categories[1].tools).toEqual(['d', 'b', 'e'])

    const appended = moveToolToCategory(navigation, 'a', 0, 'three')
    expect(appended.categories[0].tools).toEqual(['b', 'c'])
    expect(appended.categories[2].tools).toEqual(['a'])
  })

  it('clamps end insertion and ignores invalid source positions', () => {
    expect(relocateTool(navigation, { categoryIndex: 0, toolIndex: 0 }, { categoryIndex: 1, toolIndex: 99 }).categories[1].tools).toEqual(['d', 'e', 'a'])
    expect(relocateTool(navigation, { categoryIndex: 9, toolIndex: 0 }, { categoryIndex: 1, toolIndex: 0 })).toEqual(navigation)
    expect(moveCategoryBy(navigation, 0, -1)).toEqual(navigation)
  })
})