/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import { paramMock } from "../utils"

export function mockInputDevice() {
  const AxisRange = {
    source: '[PC preview] unknow source',
    axis: '[PC preview] unknow axis',
    max: '[PC preview] unknow max',
    min: '[PC preview] unknow min'
  }
  const InputDeviceData = {
    id: '[PC preview] unknow id',
    name: '[PC preview] unknow name',
    sources: ['[PC preview] unknow sources'],
    axisRanges: [AxisRange]
  }

  const EventType = ['add', 'remove', 'update']
  const DeviceIds = [-1, 0, 1, 2, 3, 4, 5, 6, 7]
  const inputDevice = {
    on: function (...args) {
      console.warn("inputDevice.on interface mocked in the Previewer. How this interface works on the" +
        " Previewer may be different from that on a real device.")
      const len = args.length;
      if (len === 2) {
        if (EventType.indexOf(args[0]) === -1) {
          console.warn("the first parameter must be 'add'|'remove'|'update'")
        }
        if (typeof args[1] != 'function') {
          console.warn("the second parameter type must be 'function'")
        }
      } else {
        console.warn("the number of parameter must be two")
      }
    },
    off: function (...args) {
      console.warn("inputDevice.off interface mocked in the Previewer. How this interface works on the" +
        " Previewer may be different from that on a real device.")
      const len = args.length;
      if (len < 1 || len > 2) {
        console.warn("the number of parameter must be one or two")
      } else if (len === 1) {
        if (EventType.indexOf(args[0]) === -1) {
          console.warn("first parameter must be 'add'|'remove'|'update'")
        }
      } else {
        if (EventType.indexOf(args[0]) === -1) {
          console.warn("first parameter must be 'add'|'remove'|'update'")
        }
        if (typeof args[1] != 'function') {
          console.warn("second parameter type must be 'function'")
        }
      }
    },
    getDeviceSync: function (...args) {
      console.warn("inputDevice.getDeviceSync interface mocked in the Previewer. How this interface works on the" +
        " Previewer may be different from that on a real device.")
      const len = args.length;
      if (len != 1) {
        console.warn("the number of parameter must be one")
      } else {
        if (DeviceIds.indexOf(args[len - 1]) != -1) {
          return InputDeviceData;
        } else {
          console.warn("parameter error")
          return paramMock.businessErrorMock;
        }
      }
    },
    getDeviceIdsSync: function () {
      console.warn("inputDevice.getDeviceIdsSync interface mocked in the Previewer. How this interface works on the" +
        " Previewer may be different from that on a real device.")
      return DeviceIds;
    },
    getDeviceIds: function (...args) {
      console.warn("inputDevice.getDeviceIds interface mocked in the Previewer. How this interface works on the" +
        " Previewer may be different from that on a real device.")
      const len = args.length;
      if (len != 1) {
        console.warn("the number of parameter must be one")
      }
      if (typeof args[len - 1] === 'function') {
        args[len - 1].call(this, DeviceIds);
      } else {
        console.warn("parameter type must be 'function")
      }
    },
    getDevice: function (...args) {
      console.warn("inputDevice.getDevice interface mocked in the Previewer. How this interface works on the" +
        " Previewer may be different from that on a real device.")
      const len = args.length;
      if (len != 2) {
        console.warn("the number of parameter must be two")
      }
      if (DeviceIds.indexOf(args[0]) === -1) {
        console.warn("the first parameter error")
      }
      if (typeof args[1] === 'function') {
        console.warn("asynchronous callback")
        args[1].call(this, InputDeviceData);
      } else {
        console.warn("the second parameter type must be 'function'")
      }
    }
  }
  return inputDevice
}