export class Result {
  static codes = {
    Success: 0,
    Fail: -1,
    NotMore: -2,
    PaySuccessful: 10003
  }

  static resultsMap = new Map([
    [Result.codes.Success, { message: '成功', data: {} }],
    [Result.codes.Fail, { message: '网络加载失败', data: {} }],
    [Result.codes.NotMore, { message: '没有更多', data: {} }],
    [Result.codes.PaySuccessful, { message: '支付成功', data: {} }]
  ])

  constructor(code, data, message) {
    const result = Result.resultsMap.get(code)
    if (result) {
      this.code = code
      this.message = message || result.message
      this.data = data || result.data
    } else {
      this.code = code
      this.message = message || ''
      this.data = data || {}
    }
  }

  // 成功
  static get Success() {
    return new Result(Result.codes.Success)
  }

  // 失败(默认错误)
  static get Fail() {
    return new Result(Result.codes.Fail)
  }

  // 没有更多
  static get NotMore() {
    return new Result(Result.codes.NotMore)
  }

  // 支付成功
  static get PaySuccessful() {
    return new Result(Result.codes.PaySuccessful)
  }
}