import { describe, expect, it } from 'vitest'
import { changedKeys, dropNotes, moveNotes, normalizeKey, notesUnder, placeNotes, toNoteKey, withNote } from './noteMap'

describe('注释的键', () => {
  it('相对工作区文件夹、用 / 分隔', () => {
    expect(toNoteKey('/work/luffy', '/work/luffy/backend/src/campaign')).toBe('backend/src/campaign')
    expect(toNoteKey('/work/luffy/', '/work/luffy/a.ts')).toBe('a.ts')
    // Windows 上 Uri.path 也是 / 分隔，盘符在最前面
    expect(toNoteKey('/c:/work/luffy', '/c:/work/luffy/src/a.ts')).toBe('src/a.ts')
  })

  it('工作区文件夹本身和外面的路径没有键', () => {
    expect(toNoteKey('/work/luffy', '/work/luffy')).toBeUndefined()
    expect(toNoteKey('/work/luffy', '/work/other/a.ts')).toBeUndefined()
    expect(toNoteKey('/work/luffy', '/work/luffy-2/a.ts')).toBeUndefined()
  })

  it('手写的键规范成同一种写法，不合法的丢掉', () => {
    expect(normalizeKey('./src/a.ts')).toBe('src/a.ts')
    expect(normalizeKey('src//campaign/')).toBe('src/campaign')
    expect(normalizeKey('src/x/../a.ts')).toBe('src/a.ts')
    expect(normalizeKey('')).toBeUndefined()
    expect(normalizeKey('.')).toBeUndefined()
    expect(normalizeKey('../a.ts')).toBeUndefined()
    expect(normalizeKey('/etc/passwd')).toBeUndefined()
  })
})

describe('保存注释', () => {
  it('去掉首尾空白，不动别的注释', () => {
    expect(withNote({ 'b.ts': 'B' }, 'a.ts', '  营销活动  ')).toEqual({ 'a.ts': '营销活动', 'b.ts': 'B' })
  })

  it('改已有的注释', () => {
    expect(withNote({ 'a.ts': '旧' }, 'a.ts', '新')).toEqual({ 'a.ts': '新' })
  })

  it('清空或只有空白就删掉这条', () => {
    expect(withNote({ 'a.ts': 'A', 'b.ts': 'B' }, 'a.ts', '')).toEqual({ 'b.ts': 'B' })
    expect(withNote({ 'a.ts': 'A' }, 'a.ts', '   ')).toEqual({})
  })

  it('不改传进来的那份', () => {
    const notes = { 'a.ts': 'A' }
    withNote(notes, 'a.ts', '')
    expect(notes).toEqual({ 'a.ts': 'A' })
  })
})

describe('改名、挪位置', () => {
  const notes = {
    'campaign': '营销活动',
    'campaign/benefits.py': '权益发放',
    'campaign/console/views.py': '后台',
    'campaign2/x.py': '名字只是前缀相同',
    'user/routes.py': '用户接口',
  }

  it('文件改名，注释跟着走', () => {
    expect(moveNotes(notes, 'user/routes.py', 'user/api.py')).toEqual({
      'campaign': '营销活动',
      'campaign/benefits.py': '权益发放',
      'campaign/console/views.py': '后台',
      'campaign2/x.py': '名字只是前缀相同',
      'user/api.py': '用户接口',
    })
  })

  it('目录挪位置，里面各层的注释一起走，名字只是前缀相同的不动', () => {
    expect(moveNotes(notes, 'campaign', 'marketing/campaign')).toEqual({
      'marketing/campaign': '营销活动',
      'marketing/campaign/benefits.py': '权益发放',
      'marketing/campaign/console/views.py': '后台',
      'campaign2/x.py': '名字只是前缀相同',
      'user/routes.py': '用户接口',
    })
  })

  it('没有注释的目录挪走，里面有注释的文件照样跟着走', () => {
    expect(moveNotes({ 'src/a/b.ts': 'B' }, 'src/a', 'lib/a')).toEqual({ 'lib/a/b.ts': 'B' })
  })

  it('挪到另一个工作区文件夹：先取出再放进去', () => {
    const moving = notesUnder(notes, 'campaign')
    expect(moving).toEqual({ '': '营销活动', 'benefits.py': '权益发放', 'console/views.py': '后台' })
    expect(placeNotes({ 'other.ts': 'O' }, 'pkg/campaign', moving)).toEqual({
      'other.ts': 'O',
      'pkg/campaign': '营销活动',
      'pkg/campaign/benefits.py': '权益发放',
      'pkg/campaign/console/views.py': '后台',
    })
  })
})

describe('删除', () => {
  it('删目录连带里面各层的注释，名字只是前缀相同的留着', () => {
    expect(dropNotes({
      'campaign': '营销活动',
      'campaign/benefits.py': '权益发放',
      'campaign/console/views.py': '后台',
      'campaign2/x.py': '留着',
    }, 'campaign')).toEqual({ 'campaign2/x.py': '留着' })
  })

  it('删文件只删它自己', () => {
    expect(dropNotes({ 'a.ts': 'A', 'b.ts': 'B' }, 'a.ts')).toEqual({ 'b.ts': 'B' })
  })
})

describe('变了哪些行', () => {
  it('增、删、改都算，没变的不算', () => {
    expect(changedKeys({ a: '1', b: '2', c: '3' }, { a: '1', b: '二', d: '4' }).sort()).toEqual(['b', 'c', 'd'])
    expect(changedKeys({ a: '1' }, { a: '1' })).toEqual([])
  })
})