namespace eos {
  export type IAccount = {
    name: string
    authority: string
    blockchain: string
  }

  export const EosEvent = {
    MISS_IDENTITY: 'miss identity callback'
  }

  export type Identity = {
    hash: string
    publicKey: string
    name: string
    kyc: boolean
    accounts: IAccount[]
  }

  export type Scatter = {
    identity: Identity
    requireVersion: Function
    getIdentity: (param: any) => Promise<Identity>
    eos: Function
    eth: Function
    forgetIdentity: Function
  }

  export type EosSetting = {
    privateKey?: string
    defaultContract?: string
    nets: string | string[]
    chainId: string
  }

  class MultiNet extends base.Net {
    private _urls: {
      url: string
      dt: number
    }[]

    public constructor(...urls: string[]) {
      super(urls[0])
      this._urls = []
      for (let i = 0; i < urls.length; i++) {
        this._urls[i] = { url: urls[i], dt: 0 }
      }
    }

    private sort() {
      this._urls.sort((a, b) => {
        return a.dt - b.dt
      })
      this._urls.length > 0 && (this._url = this._urls[0].url)
    }

    public recorde(dt: number = Number.POSITIVE_INFINITY) {
      const a = this._urls[0]
      a && (a.dt = dt) && this.sort()
    }
  }

  export class EOSConfig {
    private _setting: EosSetting
    private _nets: MultiNet

    public get setting(): EosSetting {
      return this._setting
    }

    public constructor(setting: EosSetting) {
      this._setting = setting
      this._nets = new MultiNet(...(typeof this._setting.nets === 'string' ? [this._setting.nets] : this._setting.nets))
    }

    public get url(): string {
      return this._nets.url
    }
    public get httpEndpoint(): string {
      return this._nets.url
    }

    public get host(): string {
      return this._nets.host
    }
    public get port(): number {
      return this._nets.port
    }
    public get protocal(): string {
      return this._nets.protocal
    }

    public get privateKey(): string | undefined {
      return this._setting.privateKey
    }

    public get defaultContract(): string | undefined {
      return this._setting.defaultContract
    }

    public get chainId(): string {
      return this._setting.chainId
    }

    public get eosNetwork() {
      return {
        blockchain: 'eos',
        host: this._nets.host,
        port: this._nets.port,
        protocol: this._nets.protocal,
        chainId: this._setting.chainId
      }
    }
  }
}