import { describe, it, expect, beforeEach } from 'vitest'
import { mount } from '@vue/test-utils'
import SupplierField from './SupplierField.vue'

describe('SupplierField (Domain Field)', () => {
  const defaultProps = {
    modelValue: ''
  }

  describe('Rendering', () => {
    it('renders supplier search input', () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const input = wrapper.find('input[type="text"]')
      expect(input.exists()).toBe(true)
      expect(input.attributes('placeholder')).toContain('Search')
    })

    it('displays supplier details when selected', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      // Simulate selection
      wrapper.vm.selectedSupplier = {
        id: 'SUP-001',
        name: 'Premium Electronics Co.',
        email: 'sales@premium-elec.com',
        phone: '010-1111-2222',
        city: 'Seoul',
        status: 'ACTIVE',
        rating: 5,
        joinedDate: '2023-01-15',
        leadTimeDays: 3,
        minOrderAmount: 500000,
        paymentTerms: 'Net 30',
        onTimeDeliveryRate: 98
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.find('.card').exists()).toBe(true)
      expect(wrapper.text()).toContain('Premium Electronics Co.')
    })
  })

  describe('Supplier Search', () => {
    it('performs search on input change', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const input = wrapper.find('input[type="text"]')
      await input.setValue('Premium')

      await new Promise((resolve) => setTimeout(resolve, 400))

      expect(wrapper.vm.searchResults.length).toBeGreaterThan(0)
    })

    it('clears results when search empty', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const input = wrapper.find('input[type="text"]')
      await input.setValue('Test')
      await new Promise((resolve) => setTimeout(resolve, 400))

      expect(wrapper.vm.searchResults.length).toBeGreaterThan(0)

      await input.setValue('')
      expect(wrapper.vm.searchResults).toHaveLength(0)
    })

    it('shows loading state during search', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const input = wrapper.find('input[type="text"]')
      input.element.value = 'Search'
      input.trigger('input')

      expect(wrapper.vm.isSearching).toBe(true)

      await new Promise((resolve) => setTimeout(resolve, 400))

      expect(wrapper.vm.isSearching).toBe(false)
    })
  })

  describe('Supplier Selection', () => {
    it('selects supplier and shows details', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const input = wrapper.find('input[type="text"]')
      await input.setValue('Premium')

      await new Promise((resolve) => setTimeout(resolve, 400))

      if (wrapper.vm.searchResults.length > 0) {
        await wrapper.vm.selectSupplier(wrapper.vm.searchResults[0])

        expect(wrapper.vm.selectedSupplier).not.toBeNull()
        expect(wrapper.emitted('update:modelValue')).toBeDefined()
      }
    })

    it('emits select event with supplier data', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const input = wrapper.find('input[type="text"]')
      await input.setValue('Standard')

      await new Promise((resolve) => setTimeout(resolve, 400))

      if (wrapper.vm.searchResults.length > 0) {
        await wrapper.vm.selectSupplier(wrapper.vm.searchResults[0])

        const emitted = wrapper.emitted('select')
        expect(emitted).toBeDefined()
      }
    })
  })

  describe('Supplier Details Display', () => {
    beforeEach(() => {
      const supplier = {
        id: 'SUP-002',
        name: 'Standard Parts Supplier',
        email: 'contact@standard-parts.com',
        phone: '010-3333-4444',
        city: 'Busan',
        status: 'ACTIVE',
        rating: 4,
        joinedDate: '2022-06-20',
        leadTimeDays: 7,
        minOrderAmount: 300000,
        paymentTerms: 'Net 45',
        onTimeDeliveryRate: 92
      }
    })

    it('displays supplier information', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      const supplier = {
        id: 'SUP-002',
        name: 'Standard Parts Supplier',
        email: 'contact@standard-parts.com',
        phone: '010-3333-4444',
        city: 'Busan',
        status: 'ACTIVE',
        rating: 4,
        joinedDate: '2022-06-20',
        leadTimeDays: 7,
        minOrderAmount: 300000,
        paymentTerms: 'Net 45',
        onTimeDeliveryRate: 92
      }

      wrapper.vm.selectedSupplier = supplier
      await wrapper.vm.$nextTick()

      expect(wrapper.text()).toContain('Standard Parts Supplier')
      expect(wrapper.text()).toContain('contact@standard-parts.com')
      expect(wrapper.text()).toContain('Busan')
    })

    it('displays terms and conditions', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-002',
        name: 'Standard Parts Supplier',
        email: 'contact@standard-parts.com',
        phone: '010-3333-4444',
        city: 'Busan',
        status: 'ACTIVE',
        rating: 4,
        joinedDate: '2022-06-20',
        leadTimeDays: 7,
        minOrderAmount: 300000,
        paymentTerms: 'Net 45',
        onTimeDeliveryRate: 92
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.text()).toContain('Lead Time')
      expect(wrapper.text()).toContain('7 days')
      expect(wrapper.text()).toContain('Payment Terms')
      expect(wrapper.text()).toContain('Net 45')
    })
  })

  describe('Status Display', () => {
    it('shows correct status badge for ACTIVE supplier', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-001',
        name: 'Premium Electronics',
        email: 'sales@premium.com',
        phone: '010-1111-2222',
        city: 'Seoul',
        status: 'ACTIVE',
        rating: 5,
        joinedDate: '2023-01-15',
        leadTimeDays: 3,
        minOrderAmount: 500000,
        paymentTerms: 'Net 30',
        onTimeDeliveryRate: 98
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.statusClass).toContain('bg-success')
    })

    it('shows correct status badge for TRIAL supplier', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-004',
        name: 'International Imports',
        email: 'trade@intl.com',
        phone: '010-7777-8888',
        city: 'Seoul',
        status: 'TRIAL',
        rating: 4,
        joinedDate: '2024-08-01',
        leadTimeDays: 21,
        minOrderAmount: 1000000,
        paymentTerms: 'Prepaid',
        onTimeDeliveryRate: 88
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.statusClass).toContain('bg-warning')
    })
  })

  describe('Delivery Reliability', () => {
    it('shows warning for low delivery rate', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-003',
        name: 'Budget Components',
        email: 'procurement@budget.com',
        phone: '010-5555-6666',
        city: 'Incheon',
        status: 'ACTIVE',
        rating: 3,
        joinedDate: '2021-11-10',
        leadTimeDays: 14,
        minOrderAmount: 200000,
        paymentTerms: 'COD',
        onTimeDeliveryRate: 78
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.reliabilityClass).toContain('text-danger')
      expect(wrapper.text()).toContain('Delivery Reliability')
    })
  })

  describe('Lead Time Display', () => {
    it('shows green for fast lead time (< 7 days)', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-001',
        name: 'Premium Electronics',
        email: 'sales@premium.com',
        phone: '010-1111-2222',
        city: 'Seoul',
        status: 'ACTIVE',
        rating: 5,
        joinedDate: '2023-01-15',
        leadTimeDays: 3,
        minOrderAmount: 500000,
        paymentTerms: 'Net 30',
        onTimeDeliveryRate: 98
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.leadTimeClass).toContain('text-success')
    })

    it('shows warning for medium lead time (7-14 days)', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-002',
        name: 'Standard Parts',
        email: 'contact@standard.com',
        phone: '010-3333-4444',
        city: 'Busan',
        status: 'ACTIVE',
        rating: 4,
        joinedDate: '2022-06-20',
        leadTimeDays: 7,
        minOrderAmount: 300000,
        paymentTerms: 'Net 45',
        onTimeDeliveryRate: 92
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.leadTimeClass).toContain('text-warning')
    })

    it('shows danger for long lead time (> 14 days)', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-004',
        name: 'International Imports',
        email: 'trade@intl.com',
        phone: '010-7777-8888',
        city: 'Seoul',
        status: 'TRIAL',
        rating: 4,
        joinedDate: '2024-08-01',
        leadTimeDays: 21,
        minOrderAmount: 1000000,
        paymentTerms: 'Prepaid',
        onTimeDeliveryRate: 88
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.leadTimeClass).toContain('text-danger')
    })
  })

  describe('Clear Functionality', () => {
    it('clears selection when clear button clicked', async () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      wrapper.vm.selectedSupplier = {
        id: 'SUP-001',
        name: 'Premium Electronics',
        email: 'sales@premium.com',
        phone: '010-1111-2222',
        city: 'Seoul',
        status: 'ACTIVE',
        rating: 5,
        joinedDate: '2023-01-15',
        leadTimeDays: 3,
        minOrderAmount: 500000,
        paymentTerms: 'Net 30',
        onTimeDeliveryRate: 98
      }

      await wrapper.vm.$nextTick()

      expect(wrapper.vm.selectedSupplier).not.toBeNull()

      wrapper.vm.clearSelection()

      expect(wrapper.vm.selectedSupplier).toBeNull()
      expect(wrapper.vm.searchQuery).toBe('')
    })
  })

  describe('Accessibility', () => {
    it('has proper label', () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      expect(wrapper.text()).toContain('Supplier')
    })

    it('shows required indicator', () => {
      const wrapper = mount(SupplierField, { props: defaultProps })

      expect(wrapper.text()).toContain('*')
    })
  })
})