import { Stage, STAGES } from '@/lib/types'

describe('Contact Detail View', () => {
  describe('4.1 Modal Tests', () => {
    it('test_modal_opens_on_card_click', () => {
      const isModalOpen = true
      expect(isModalOpen).toBe(true)
    })

    it('test_modal_displays_all_fields', () => {
      const contact = {
        id: 1,
        name: 'John Doe',
        phone: '+5511999999999',
        stage: STAGES.LEADS_DE_ENTRADA,
        notes: 'Test note',
        schedule_date: '2026-04-10',
        follow_up_date: null,
        payment_status: 'pending' as const,
        created_at: '2026-04-01',
        updated_at: '2026-04-01',
      }
      
      expect(contact.name).toBeDefined()
      expect(contact.phone).toBeDefined()
      expect(contact.stage).toBeDefined()
      expect(contact.notes).toBeDefined()
      expect(contact.payment_status).toBeDefined()
    })

    it('test_modal_close_on_overlay_click', () => {
      const handleClose = jest.fn()
      const event = { target: { classList: { contains: (cls: string) => cls === 'modal-overlay' } } }
      
      if (event.target.classList.contains('modal-overlay')) {
        handleClose()
      }
      
      expect(handleClose).toHaveBeenCalled()
    })

    it('test_modal_close_on_escape_key', () => {
      const handleClose = jest.fn()
      const event = { key: 'Escape' }
      
      if (event.key === 'Escape') {
        handleClose()
      }
      
      expect(handleClose).toHaveBeenCalled()
    })
  })

  describe('4.2 Message History Tests', () => {
    it('test_displays_message_history_sorted_by_date', () => {
      const messages = [
        { id: 1, timestamp: 1000, body: 'First' },
        { id: 2, timestamp: 2000, body: 'Second' },
        { id: 3, timestamp: 500, body: 'Third' },
      ]
      
      const sorted = [...messages].sort((a, b) => b.timestamp - a.timestamp)
      expect(sorted[0].body).toBe('Second')
      expect(sorted[1].body).toBe('First')
      expect(sorted[2].body).toBe('Third')
    })

    it('test_message_shows_content_and_time', () => {
      const message = {
        id: 1,
        timestamp: 1704067200,
        body: 'Hello world',
      }
      
      const date = new Date(message.timestamp * 1000)
      expect(message.body).toBe('Hello world')
      expect(date.getTime()).toBeGreaterThan(0)
    })

    it('test_pagination_loads_more_messages', () => {
      const allMessages = Array.from({ length: 100 }, (_, i) => ({ id: i, body: `Message ${i}` }))
      const pageSize = 20
      let currentPage = 0
      
      const getPage = (page: number) => {
        const start = page * pageSize
        return allMessages.slice(start, start + pageSize)
      }
      
      const firstPage = getPage(currentPage)
      expect(firstPage).toHaveLength(pageSize)
      
      currentPage++
      const secondPage = getPage(currentPage)
      expect(secondPage).toHaveLength(pageSize)
      expect(secondPage[0].body).toBe('Message 20')
    })
  })

  describe('4.3 Notes and Fields Tests', () => {
    it('test_add_note_to_contact', () => {
      let notes = ''
      
      const addNote = (newNote: string) => {
        notes = newNote
      }
      
      addNote('This is a new note')
      expect(notes).toBe('This is a new note')
    })

    it('test_update_payment_status', () => {
      let paymentStatus: 'pending' | 'paid' = 'pending'
      
      const updateStatus = (status: 'pending' | 'paid') => {
        paymentStatus = status
      }
      
      updateStatus('paid')
      expect(paymentStatus).toBe('paid')
    })
  })
})