import { describe, expect, it } from 'vitest'
import { columnLabel, prNumberOf, REVIEW_COLUMNS_TEXT, reviewableIssue, reviewablePullRequest, reviewCandidates, reviewDescription, reviewMessage } from './reviewRules'

const issue = { number: 446, title: '用户资料：上传头像，收紧非管理员改资料的权限' }

describe('审查时的视图标题', () => {
  it('标题后面「审查 #446」，下面一行工单标题、PR、改了几个文件', () => {
    expect(reviewDescription(446)).toBe('审查 #446')
    expect(reviewMessage(issue, 447, 6)).toBe('#446 用户资料：上传头像，收紧非管理员改资料的权限 · PR #447 · 改了 6 个文件')
  })
})

describe('选工单弹框列哪些工单', () => {
  it('「审查」列的都列（没 PR 的也列），「进行中」列的只列有 PR 的，别的列不列', () => {
    const issues = [
      { number: 438, column: 'review' as const },
      { number: 452, column: 'review' as const, pr: '455' },
      { number: 451, column: 'in-progress' as const },
      { number: 449, column: 'in-progress' as const, pr: '450' },
      { number: 460, column: 'done' as const, pr: '461' },
      { number: 470, column: 'todo' as const, pr: '471' },
    ]
    expect(reviewCandidates(issues).map(item => item.number)).toEqual([452, 438, 449])
  })

  it('先「审查」一组再「进行中」一组，组里工单号大的在前（和看板列里一样）', () => {
    const issues = [
      { number: 300, column: 'in-progress' as const, pr: '301' },
      { number: 438, column: 'review' as const, pr: '440' },
      { number: 500, column: 'in-progress' as const, pr: '501' },
      { number: 446, column: 'review' as const, pr: '447' },
    ]
    expect(reviewCandidates(issues).map(item => item.number)).toEqual([446, 438, 500, 300])
  })

  it('只要 Gitea 的工单（PR 在 Gitea 上），YouTrack 的不算，没写来源的算 Gitea 的', () => {
    const issues = [
      { number: 12, column: 'review' as const, source: 'youtrack' as const },
      { number: 13, column: 'in-progress' as const, source: 'youtrack' as const, pr: '14' },
      { number: 446, column: 'review' as const, source: 'gitea' as const },
      { number: 438, column: 'review' as const },
    ]
    expect(reviewCandidates(issues).map(item => item.number)).toEqual([446, 438])
  })

  it('列名：分组标题和连着写的几列', () => {
    expect(columnLabel('review')).toBe('审查')
    expect(columnLabel('in-progress')).toBe('进行中')
    expect(REVIEW_COLUMNS_TEXT).toBe('「审查」「进行中」')
  })

  it('工单的 PR 号取 state JSON 里的正整数（看板快照里也是字符串）', () => {
    expect(prNumberOf({ pr: '454' })).toBe(454)
    expect(prNumberOf({ pr: '447' })).toBe(447)
    expect(prNumberOf({})).toBeUndefined()
    expect(prNumberOf({ pr: '' })).toBeUndefined()
    expect(prNumberOf({ pr: '0' })).toBeUndefined()
    expect(prNumberOf({ pr: 'abc' })).toBeUndefined()
  })
})

describe('还能不能审查（选中、刷新、重开窗口时判断）', () => {
  it('在「审查」或「进行中」列、有 PR：带上工单和 PR 号', () => {
    const inReview = { column: 'review' as const, pr: '447' }
    const inProgress = { column: 'in-progress' as const, pr: '450' }
    expect(reviewableIssue(446, inReview)).toEqual({ issue: inReview, pr: 447 })
    expect(reviewableIssue(449, inProgress)).toEqual({ issue: inProgress, pr: 450 })
  })

  it('工单没了、两列都离开了、没有 PR：给出原因', () => {
    expect(reviewableIssue(446, null)).toEqual({ blocked: '#446 已经不存在' })
    expect(reviewableIssue(446, { column: 'done', pr: '447' })).toEqual({ blocked: '#446 已经不在看板「审查」「进行中」列' })
    expect(reviewableIssue(446, { column: 'todo', pr: '447' })).toEqual({ blocked: '#446 已经不在看板「审查」「进行中」列' })
    expect(reviewableIssue(446, { column: 'review' })).toEqual({ blocked: '#446 没有关联 PR' })
    expect(reviewableIssue(449, { column: 'in-progress' })).toEqual({ blocked: '#449 没有关联 PR' })
  })

  it('关联的 PR 开着：带上它；没了、合并了、关了：给出原因', () => {
    const open = { state: 'open', merged: false, headSha: 'abc' }
    expect(reviewablePullRequest(447, open)).toEqual({ pull: open })
    expect(reviewablePullRequest(447, null)).toEqual({ blocked: 'PR #447 已经不存在' })
    expect(reviewablePullRequest(447, { state: 'closed', merged: true })).toEqual({ blocked: 'PR #447 已经合并' })
    expect(reviewablePullRequest(447, { state: 'closed', merged: false })).toEqual({ blocked: 'PR #447 已经关闭' })
  })
})