import type { Issue } from '../gitea/types'
import { describe, expect, it } from 'vitest'
import { applyIssueUpdate } from './kanbanUpdates'

function issue(number: number, extra: Partial<Issue> = {}): Issue {
  return { id: `repo#${number}`, number, title: `Issue ${number}`, column: 'review', htmlUrl: '', ...extra }
}

describe('applyIssueUpdate', () => {
  it('按 number 修改并删除 null 字段，不改变原数组、卡片或补丁', () => {
    const first = Object.freeze(issue(1, { pr: '12', reviewSessionId: 'session' }))
    const second = Object.freeze(issue(2))
    const current = Object.freeze([first, second])
    const patch = Object.freeze({ column: 'done', pr: null, reviewSessionId: null })
    const result = applyIssueUpdate(current, { type: 'issue/patch', issueNumber: 1, patch })
    expect(result).toEqual([issue(1, { column: 'done' }), second])
    expect(result[0]).not.toHaveProperty('pr')
    expect(result[0]).not.toHaveProperty('reviewSessionId')
    expect(result[1]).toBe(second)
    expect(first.pr).toBe('12')
    expect(patch.pr).toBeNull()
  })

  it('未知工单的补丁不新增卡片', () => {
    const current = [issue(1)]
    expect(applyIssueUpdate(current, { type: 'issue/patch', issueNumber: 2, patch: { column: 'done' } })).toEqual(current)
  })

  it('append 同号卡片原位整对象替换，不保留旧字段', () => {
    const current = Object.freeze([issue(1), issue(2, { pr: '12' }), issue(3)])
    const replacement = Object.freeze(issue(2, { id: 'new-id', column: 'done' }))
    const result = applyIssueUpdate(current, { type: 'issue/append', issue: replacement })
    expect(result).toEqual([current[0], replacement, current[2]])
    expect(result[1]).not.toHaveProperty('pr')
    expect(current[1].pr).toBe('12')
  })

  it('append 新编号即追加，不按 id 去重', () => {
    const first = issue(1)
    const next = issue(2, { id: first.id })
    expect(applyIssueUpdate([first], { type: 'issue/append', issue: next })).toEqual([first, next])
  })

  it('remove 删除所有同号卡片，不改变原数组', () => {
    const current = Object.freeze([issue(1), issue(2), issue(1, { id: 'another' })])
    expect(applyIssueUpdate(current, { type: 'issue/remove', issueNumber: 1 })).toEqual([current[1]])
    expect(current).toHaveLength(3)
  })
})