/**
 * 02-wm-close — 窗口关闭与重入保护
 *
 * 使用 vitest 原汁原味的 vi.fn() + spy 模式。
 * 测试 WM composable 的关闭逻辑、confirmClose 防重入机制。
 */
import { describe, it, expect, vi } from 'vitest'
import { wm } from '../../src/composables/useWM'

describe('02-wm-close — 窗口管理', () => {
  // ==================== 初始状态 ====================
  describe('初始状态', () => {
    it('初始无窗口', () => {
      expect(wm.windows).toHaveLength(0)
    })

    it('activeWin 初始为 null', () => {
      expect(wm.activeWin.value).toBeNull()
    })

    it('windowsForApp 返回空', () => {
      expect(wm.windowsForApp('finder')).toHaveLength(0)
    })

    it('anyVisible 返回 false', () => {
      expect(wm.anyVisible()).toBe(false)
    })

    it('usableRect 返回有效区域', () => {
      const r = wm.usableRect()
      expect(r.w).toBeGreaterThan(400)
      expect(r.h).toBeGreaterThan(300)
      expect(r.y).toBe(30)
    })
  })

  // ==================== close 操作 ====================
  describe('close', () => {
    it('close 不存在的窗口返回 alreadyClosed', async () => {
      const result = await wm.close({ windows: [] } as any)
      expect(result).toBe('alreadyClosed')
    })
  })

  // ==================== confirmClose 机制 ====================
  describe('confirmClose', () => {
    it('app 可注入确认回调', () => {
      const doneCb = vi.fn()
      const cancelCb = vi.fn()

      const mockWin: any = {
        id: 'test', appId: 't', title: '', icon: '',
        rect: { x: 0, y: 0, w: 0, h: 0 },
        prevRect: null, minW: 200, minH: 120, state: 'normal',
        el: null, body: null, titleEl: null, timers: [],
        confirmClose: (done: () => void, cancel: () => void) => {
          cancel()
        },
      }

      expect(typeof mockWin.confirmClose).toBe('function')
      mockWin.confirmClose(doneCb, cancelCb)
      expect(cancelCb).toHaveBeenCalledTimes(1)
      expect(doneCb).not.toHaveBeenCalled()
    })
  })

  // ==================== closePromise 防重入 ====================
  describe('closePromise 防重入', () => {
    it('同一窗口 closePromise 相同', () => {
      const mock: any = {
        id: 'test', appId: 't', title: '', icon: '',
        rect: { x: 0, y: 0, w: 0, h: 0 },
        prevRect: null, minW: 200, minH: 120, state: 'normal',
        el: {
          remove: vi.fn(),
          classList: { remove: vi.fn(), add: vi.fn() },
        },
        body: null, titleEl: null, timers: [],
        closePromise: null,
      }

      mock.closePromise = Promise.resolve('closed')
      const p1 = mock.closePromise
      const p2 = mock.closePromise
      expect(p1).toBe(p2)
    })
  })

  // ==================== 方法存在性 ====================
  describe('方法完整性', () => {
    it('所有 WM 核心方法存在', () => {
      expect(typeof wm.setTitle).toBe('function')
      expect(typeof wm.minimize).toBe('function')
      expect(typeof wm.restore).toBe('function')
      expect(typeof wm.toggleZoom).toBe('function')
      expect(typeof wm.toggleFullscreen).toBe('function')
      expect(typeof wm.focus).toBe('function')
      expect(typeof wm.close).toBe('function')
    })

    it('clampAll 不抛错', () => {
      expect(() => wm.clampAll()).not.toThrow()
    })
  })
})