/**
 * TabStore Tests - 标签页状态管理测试
 */

import { describe, it, expect, beforeEach } from 'vitest'
import { useTabStore } from '../../src/stores/tabStore'

describe('TabStore', () => {
  beforeEach(() => {
    // Reset store to initial state
    useTabStore.setState({
      tabs: [{ id: 'welcome', title: '欢迎', type: 'welcome', isActive: true }],
      activeTabId: 'welcome',
    })
  })

  describe('初始状态', () => {
    it('应该包含默认的欢迎标签', () => {
      const { tabs, activeTabId } = useTabStore.getState()
      expect(tabs).toHaveLength(1)
      expect(tabs[0].id).toBe('welcome')
      expect(tabs[0].type).toBe('welcome')
      expect(activeTabId).toBe('welcome')
    })
  })

  describe('addTab', () => {
    it('应该添加新的终端标签', () => {
      const { addTab, tabs } = useTabStore.getState()
      addTab({ title: 'Terminal', type: 'terminal' })

      const newTabs = useTabStore.getState().tabs
      expect(newTabs).toHaveLength(tabs.length + 1)
      expect(newTabs.find(t => t.type === 'terminal')).toBeDefined()
    })

    it('添加新标签后应该激活它', () => {
      const { addTab } = useTabStore.getState()
      addTab({ title: 'Terminal', type: 'terminal' })

      const { activeTabId, tabs } = useTabStore.getState()
      const activeTab = tabs.find(t => t.id === activeTabId)
      expect(activeTab?.type).toBe('terminal')
    })

    it('添加 settings 类型时如果已存在则激活而不是创建新的', () => {
      const { addTab, tabs } = useTabStore.getState()
      addTab({ title: 'Settings', type: 'settings' })
      addTab({ title: 'Settings 2', type: 'settings' })

      const newTabs = useTabStore.getState().tabs
      expect(newTabs).toHaveLength(2) // welcome + settings
    })
  })

  describe('updateTab', () => {
    it('应该更新指定标签的标题', () => {
      const { updateTab } = useTabStore.getState()
      updateTab('welcome', { title: '新的标题' })

      const { tabs } = useTabStore.getState()
      expect(tabs[0].title).toBe('新的标题')
    })

    it('应该更新标签的连接状态', () => {
      const { updateTab } = useTabStore.getState()
      updateTab('welcome', { connectionStatus: 'connected' })

      const { tabs } = useTabStore.getState()
      expect(tabs[0].connectionStatus).toBe('connected')
    })
  })

  describe('closeTab', () => {
    it('不应该关闭最后一个标签', () => {
      const { closeTab } = useTabStore.getState()
      const closed = closeTab('welcome')

      const { tabs } = useTabStore.getState()
      expect(tabs).toHaveLength(1)
      expect(closed).toBeNull()
    })

    it('关闭标签后应该激活另一个标签', () => {
      const { addTab, closeTab } = useTabStore.getState()
      addTab({ title: 'Tab 1', type: 'terminal' })
      addTab({ title: 'Tab 2', type: 'sftp' })

      const { tabs, activeTabId } = useTabStore.getState()
      const tabToClose = tabs.find(t => t.title === 'Tab 1')

      if (tabToClose) {
        closeTab(tabToClose.id)
        const { tabs: newTabs, activeTabId: newActiveId } = useTabStore.getState()
        expect(newTabs.find(t => t.isActive)?.title).toBe('Tab 2')
      }
    })

    it('应该返回被关闭的标签', () => {
      const { addTab, closeTab } = useTabStore.getState()
      addTab({ title: 'Tab 1', type: 'terminal' })

      const { tabs } = useTabStore.getState()
      const tabToClose = tabs.find(t => t.title === 'Tab 1')

      if (tabToClose) {
        const closed = closeTab(tabToClose.id)
        expect(closed?.title).toBe('Tab 1')
      }
    })
  })

  describe('closeOtherTabs', () => {
    it('应该关闭除指定标签外的所有标签', () => {
      const { addTab, closeOtherTabs, tabs } = useTabStore.getState()
      addTab({ title: 'Tab 1', type: 'terminal' })
      addTab({ title: 'Tab 2', type: 'sftp' })

      const tabToKeep = useTabStore.getState().tabs.find(t => t.title === 'Tab 1')
      if (tabToKeep) {
        closeOtherTabs(tabToKeep.id)
        const { tabs: newTabs } = useTabStore.getState()
        expect(newTabs).toHaveLength(1)
        expect(newTabs[0].title).toBe('Tab 1')
      }
    })
  })

  describe('activateTab', () => {
    it('应该激活指定的标签', () => {
      const { addTab, activateTab } = useTabStore.getState()
      addTab({ title: 'Tab 1', type: 'terminal' })
      addTab({ title: 'Tab 2', type: 'sftp' })

      const { tabs } = useTabStore.getState()
      const tabToActivate = tabs.find(t => t.title === 'Tab 1')

      if (tabToActivate) {
        activateTab(tabToActivate.id)
        const { tabs: newTabs, activeTabId } = useTabStore.getState()
        const activeTab = newTabs.find(t => t.id === activeTabId)
        expect(activeTab?.title).toBe('Tab 1')
      }
    })
  })

  describe('getTabById', () => {
    it('应该返回指定 ID 的标签', () => {
      const { addTab, getTabById } = useTabStore.getState()
      addTab({ title: 'Test Tab', type: 'terminal' })

      const { tabs } = useTabStore.getState()
      const testTab = tabs.find(t => t.title === 'Test Tab')

      if (testTab) {
        const found = getTabById(testTab.id)
        expect(found?.title).toBe('Test Tab')
      }
    })

    it('找不到时应该返回 undefined', () => {
      const { getTabById } = useTabStore.getState()
      const found = getTabById('non-existent-id')
      expect(found).toBeUndefined()
    })
  })

  describe('updateTabTitle', () => {
    it('应该更新标签标题', () => {
      const { updateTabTitle } = useTabStore.getState()
      updateTabTitle('welcome', 'Updated Welcome')

      const { tabs } = useTabStore.getState()
      expect(tabs[0].title).toBe('Updated Welcome')
    })
  })
})