import { describe, it, expect } from 'vitest'
import { reclassifyDeviceFromCatalog } from '../../../app/services/parameter_writability.js'
import { Device } from '../../../app/domain/device/device.js'
import { DeviceId } from '../../../app/domain/device/device_id.js'
import { DeviceParameter, DeviceProperty } from '../../../app/domain/device/device_parameter.js'
import { ParameterType } from '../../../app/domain/shared/types.js'

// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------

function makeDevice(gpnStatus: 'supported' | 'unsupported' | 'unknown' = 'unsupported'): Device {
  const device = new Device(new DeviceId('Sagemcom', 'F8B7FF', 'Livebox 4', 'LB4-TEST-001'))
  device.setGpnStatus(gpnStatus)
  device.setDataModel('tr-181')
  return device
}

function addProperty(device: Device, name: string, value: any = null): void {
  device.setProperty(new DeviceProperty(name, value, ParameterType.STRING))
}

// ---------------------------------------------------------------------------
// reclassifyDeviceFromCatalog
// ---------------------------------------------------------------------------

describe('reclassifyDeviceFromCatalog', () => {
  it('moves writable properties to parameters (PeriodicInformInterval)', () => {
    const device = makeDevice()
    addProperty(device, 'Device.ManagementServer.PeriodicInformInterval', '30')

    const count = reclassifyDeviceFromCatalog(device)

    expect(count).toBe(1)
    expect(device.getParameter('Device.ManagementServer.PeriodicInformInterval')).not.toBeNull()
    expect(device.getProperty('Device.ManagementServer.PeriodicInformInterval')).toBeNull()
  })

  it('moves writable properties to parameters (ProvisioningCode)', () => {
    const device = makeDevice()
    addProperty(device, 'Device.DeviceInfo.ProvisioningCode', 'test-code')

    const count = reclassifyDeviceFromCatalog(device)

    expect(count).toBe(1)
    expect(device.getParameter('Device.DeviceInfo.ProvisioningCode')).not.toBeNull()
    expect(device.getParameter('Device.DeviceInfo.ProvisioningCode')!.value).toBe('test-code')
    expect(device.getProperty('Device.DeviceInfo.ProvisioningCode')).toBeNull()
  })

  it('does NOT move read-only properties (Manufacturer)', () => {
    const device = makeDevice()
    addProperty(device, 'Device.DeviceInfo.Manufacturer', 'Sagemcom')

    const count = reclassifyDeviceFromCatalog(device)

    expect(count).toBe(0)
    expect(device.getProperty('Device.DeviceInfo.Manufacturer')).not.toBeNull()
    expect(device.getParameter('Device.DeviceInfo.Manufacturer')).toBeNull()
  })

  it('does NOT move properties not in catalog', () => {
    const device = makeDevice()
    addProperty(device, 'Device.Vendor.CustomParam.Unknown', 'value')

    const count = reclassifyDeviceFromCatalog(device)

    // Not in catalog → stays as property (default behavior for unknown paths)
    expect(count).toBe(0)
    expect(device.getProperty('Device.Vendor.CustomParam.Unknown')).not.toBeNull()
  })

  it('handles instance paths with numeric segments', () => {
    const device = makeDevice()
    // Device.IP.Interface.{i}.Enable is writable in catalog
    addProperty(device, 'Device.IP.Interface.1.Enable', 'true')

    const count = reclassifyDeviceFromCatalog(device)

    expect(count).toBe(1)
    expect(device.getParameter('Device.IP.Interface.1.Enable')).not.toBeNull()
    expect(device.getProperty('Device.IP.Interface.1.Enable')).toBeNull()
  })

  it('reclassifies multiple properties in one call', () => {
    const device = makeDevice()
    addProperty(device, 'Device.ManagementServer.PeriodicInformInterval', '60')
    addProperty(device, 'Device.DeviceInfo.ProvisioningCode', 'code')
    addProperty(device, 'Device.DeviceInfo.Manufacturer', 'Sagemcom') // read-only, stays
    addProperty(device, 'Device.DeviceInfo.SerialNumber', 'SN123') // read-only, stays

    const count = reclassifyDeviceFromCatalog(device)

    expect(count).toBe(2)
    expect(device.getParameters()).toHaveLength(2)
    expect(device.getProperties()).toHaveLength(2)
  })

  it('preserves value and type when moving property to parameter', () => {
    const device = makeDevice()
    device.setProperty(
      new DeviceProperty('Device.ManagementServer.PeriodicInformInterval', '120', ParameterType.UNSIGNED_INT)
    )

    reclassifyDeviceFromCatalog(device)

    const param = device.getParameter('Device.ManagementServer.PeriodicInformInterval')
    expect(param).not.toBeNull()
    expect(param!.value).toBe('120')
    expect(param!.type).toBe(ParameterType.UNSIGNED_INT)
  })

  it('returns 0 when device has no properties', () => {
    const device = makeDevice()

    const count = reclassifyDeviceFromCatalog(device)

    expect(count).toBe(0)
  })

  it('does not touch existing parameters', () => {
    const device = makeDevice()
    device.setParameter(new DeviceParameter('Device.ManagementServer.URL', 'http://acs', ParameterType.STRING))
    addProperty(device, 'Device.DeviceInfo.Manufacturer', 'Sagemcom')

    reclassifyDeviceFromCatalog(device)

    expect(device.getParameter('Device.ManagementServer.URL')!.value).toBe('http://acs')
    expect(device.getParameters()).toHaveLength(1)
  })

  it('works with InternetGatewayDevice paths (TR-098) — not in TR-181 catalog', () => {
    const device = new Device(new DeviceId('Huawei', '202BC1', 'BM632w', '000000'))
    device.setGpnStatus('unsupported')
    device.setDataModel('tr-098')
    addProperty(device, 'InternetGatewayDevice.DeviceInfo.ProvisioningCode', 'code')
    addProperty(device, 'InternetGatewayDevice.ManagementServer.PeriodicInformInterval', '60')

    const count = reclassifyDeviceFromCatalog(device)

    // TR-098 paths are NOT in the TR-181 catalog → nothing reclassified
    expect(count).toBe(0)
    expect(device.getProperties()).toHaveLength(2)
    expect(device.getParameters()).toHaveLength(0)
  })
})