import { describe, expect, it } from 'vitest'
import zhMessages from '@/locales/langs/zh.json'
import enMessages from '@/locales/langs/en.json'
import {
  bindChangeKind,
  buildEmbedSnippet,
  buildSettingsPayload,
  buildSlotEditPayload,
  clampIntervalMs,
  DEFAULT_EMBED_SETTINGS,
  EMBED_ORIGIN_FALLBACK,
  embedOriginFromEnv,
  type EmbedSettingsDraft
} from './embedSlots'

/** 契约形状的既有条目（编辑载荷断言基准） */
const CURRENT_ITEM: Api.EmbedSlot.Item = {
  id: 'slot-1',
  publicToken: 'tok0000000000000000000',
  name: '官网首页悬浮位',
  enabled: true,
  albumId: null,
  albumTitle: null,
  configVersion: 1,
  settings: { ...DEFAULT_EMBED_SETTINGS },
  updatedAt: '2026-09-20T10:00:00.000Z'
}

describe('buildSettingsPayload 表单 → settings 载荷', () => {
  it('缺省草稿 → 契约缺省值全集（整体提交：字段齐全）', () => {
    expect(buildSettingsPayload({ ...DEFAULT_EMBED_SETTINGS })).toEqual({
      position: 'right',
      size: 'md',
      intervalMs: 5000,
      lang: 'auto',
      collapsedDefault: false
    })
  })

  it('intervalMs 越界/非有限值 → 夹取到契约区间（键盘输入兜底）', () => {
    expect(clampIntervalMs(1)).toBe(3000)
    expect(clampIntervalMs(2999.6)).toBe(3000)
    expect(clampIntervalMs(100000)).toBe(30000)
    expect(clampIntervalMs(Number.NaN)).toBe(5000)
    expect(clampIntervalMs(Number.POSITIVE_INFINITY)).toBe(5000)
    const draft: EmbedSettingsDraft = { ...DEFAULT_EMBED_SETTINGS, intervalMs: 2000 }
    expect(buildSettingsPayload(draft).intervalMs).toBe(3000)
  })
})

describe('buildSlotEditPayload 编辑载荷收敛', () => {
  it('name 与 settings 均未变化 → 空载荷（不制造服务端 no-op）', () => {
    expect(
      buildSlotEditPayload(CURRENT_ITEM, CURRENT_ITEM.name, { ...DEFAULT_EMBED_SETTINGS })
    ).toEqual({})
  })

  it('仅 name 变化 → 只送 name；settings 变化 → 送完整 settings（整体替换）', () => {
    expect(
      buildSlotEditPayload(CURRENT_ITEM, '  活动页左侧位 ', { ...DEFAULT_EMBED_SETTINGS })
    ).toEqual({
      name: '活动页左侧位'
    })
    const changed: EmbedSettingsDraft = {
      ...DEFAULT_EMBED_SETTINGS,
      position: 'left',
      size: 'sm',
      intervalMs: 8000,
      lang: 'zh-CN',
      collapsedDefault: true
    }
    expect(buildSlotEditPayload(CURRENT_ITEM, CURRENT_ITEM.name, changed)).toEqual({
      settings: changed
    })
  })
})

describe('buildEmbedSnippet 嵌入代码拼接', () => {
  it('EMBED_ORIGIN + token → /embed/v1/loader.js 引用（尾斜杠容忍）', () => {
    expect(buildEmbedSnippet('https://view.example.com', 'abc123def456ghi789jklmno')).toBe(
      '<script src="https://view.example.com/embed/v1/loader.js" data-slot="abc123def456ghi789jklmno" defer></script>'
    )
    expect(buildEmbedSnippet('http://127.0.0.1:5175//', 'tok')).toBe(
      '<script src="http://127.0.0.1:5175/embed/v1/loader.js" data-slot="tok" defer></script>'
    )
  })

  it('环境基址：VITE_EMBED_ORIGIN 缺省/空白兜底本机 dev', () => {
    expect(embedOriginFromEnv({})).toBe(EMBED_ORIGIN_FALLBACK)
    expect(embedOriginFromEnv({ VITE_EMBED_ORIGIN: '  ' })).toBe(EMBED_ORIGIN_FALLBACK)
    expect(embedOriginFromEnv({ VITE_EMBED_ORIGIN: ' https://cdn.example.com/ ' })).toBe(
      'https://cdn.example.com'
    )
  })
})

describe('bindChangeKind 绑定变更分类', () => {
  it('null→id 绑定 / id→id 换绑 / id→null 解绑 / 值不变 none', () => {
    expect(bindChangeKind(null, 'album-1')).toBe('bind')
    expect(bindChangeKind('album-1', 'album-2')).toBe('rebind')
    expect(bindChangeKind('album-1', null)).toBe('unbind')
    expect(bindChangeKind('album-1', 'album-1')).toBe('none')
    expect(bindChangeKind(null, null)).toBe('none')
  })
})

describe('绑定变更确认文案（A22：configVersion 将递增，官网无需改动）', () => {
  const zh = zhMessages.embedSlotsManage as Record<string, unknown>
  const en = enMessages.embedSlotsManage as Record<string, unknown>
  const zhBind = zh.bind as Record<string, string>
  const enBind = en.bind as Record<string, string>

  it('zh/en 键集合一致（embedSlotsManage 子树）', () => {
    const keysOf = (obj: Record<string, unknown>, prefix = ''): string[] =>
      Object.entries(obj).flatMap(([key, value]) =>
        typeof value === 'object' && value !== null
          ? keysOf(value as Record<string, unknown>, `${prefix}${key}.`)
          : [`${prefix}${key}`]
      )
    expect(keysOf(en)).toEqual(keysOf(zh))
  })

  it('三类确认文案均携带 A22 短语（换绑不改官网：loader 只认 token）', () => {
    for (const key of ['confirmBind', 'confirmRebind', 'confirmUnbind']) {
      expect(zhBind[key]).toContain('configVersion 将递增')
      expect(zhBind[key]).toContain('官网无需改动')
      expect(enBind[key]).toContain('configVersion will increase')
      expect(enBind[key]).toContain('no change is needed on the host site')
    }
  })
})