import { describe, it, expect, beforeEach } from 'vitest'
import { setActivePinia, createPinia } from 'pinia'
import { useInventoryStore, useWarehouseStore } from '@/stores'

describe('Inventory Workflow Integration Tests', () => {
  beforeEach(() => {
    setActivePinia(createPinia())
  })

  describe('Stock Management', () => {
    it('should update quantity correctly', async () => {
      const inventoryStore = useInventoryStore()

      // Initial state
      expect(inventoryStore.totalQuantity).toBe(0)

      // Update quantity
      await inventoryStore.updateQuantity('item-001', 100)
      expect(inventoryStore.totalQuantity).toBeGreaterThan(0)
    })

    it('should reserve and release quantity', async () => {
      const inventoryStore = useInventoryStore()

      // Setup
      await inventoryStore.updateQuantity('item-001', 100)
      const initial = inventoryStore.availableQuantity

      // Reserve
      await inventoryStore.reserveQuantity('item-001', 30)
      expect(inventoryStore.availableQuantity).toBeLessThan(initial)

      // Release
      await inventoryStore.releaseQuantity('item-001', 30)
      expect(inventoryStore.availableQuantity).toBe(initial)
    })

    it('should prevent overselling', async () => {
      const inventoryStore = useInventoryStore()

      await inventoryStore.updateQuantity('item-001', 50)

      try {
        await inventoryStore.reserveQuantity('item-001', 100)
        expect.fail('Should throw error')
      } catch (err: any) {
        expect(err.message).toContain('Insufficient')
      }
    })

    it('should track low stock items', async () => {
      const inventoryStore = useInventoryStore()

      // Setup low stock
      await inventoryStore.updateQuantity('item-001', 5) // Below reorder level

      const lowStock = inventoryStore.lowStockItems
      expect(lowStock.length).toBeGreaterThan(0)
    })
  })

  describe('Warehouse Integration', () => {
    it('should coordinate inventory with warehouses', async () => {
      const inventoryStore = useInventoryStore()
      const warehouseStore = useWarehouseStore()

      await warehouseStore.fetchWarehouses()
      expect(warehouseStore.warehouseCount).toBeGreaterThanOrEqual(0)

      // Inventory in warehouses
      await inventoryStore.fetchInventory()
      expect(inventoryStore.items).toBeDefined()
    })

    it('should update warehouse load based on inventory', async () => {
      const warehouseStore = useWarehouseStore()

      await warehouseStore.createWarehouse({
        code: 'WH-TEST',
        name: 'Test Warehouse',
        location: 'Test Location',
        capacity: 1000
      })

      const warehouses = warehouseStore.warehouses
      expect(warehouses.length).toBeGreaterThan(0)

      // Update load
      const warehouse = warehouses[0]
      await warehouseStore.updateLoad(warehouse.id, 500)
      expect(warehouse.currentLoad).toBe(500)
    })

    it('should alert on overloaded warehouses', async () => {
      const warehouseStore = useWarehouseStore()

      await warehouseStore.createWarehouse({
        code: 'WH-FULL',
        name: 'Full Warehouse',
        location: 'Location',
        capacity: 100
      })

      const warehouse = warehouseStore.warehouses[0]
      await warehouseStore.updateLoad(warehouse.id, 95) // 95% capacity

      const overloaded = warehouseStore.overloadedWarehouses
      expect(overloaded.some((w) => w.id === warehouse.id)).toBe(true)
    })
  })
})