const axios = require('axios')

let _this

class Mining {
  constructor (config) {
    this.restURL = config.restURL
    this.apiToken = config.apiToken
    this.authToken = config.authToken

    if (this.authToken) {
      // Add Basic Authentication token to the authorization header.
      this.axiosOptions = {
        headers: {
          authorization: this.authToken
        }
      }
    } else {
      // Add JWT token to the authorization header.
      this.axiosOptions = {
        headers: {
          authorization: `Token ${this.apiToken}`
        }
      }
    }

    _this = this
  }

  async getBlockTemplate (templateRequest) {
    try {
      const response = await axios.get(
        `${this.restURL}mining/getBlockTemplate/${templateRequest}`,
        _this.axiosOptions
      )
      return response.data
    } catch (error) {
      if (error.response && error.response.data) throw error.response.data
      else throw error
    }
  }

  async getMiningInfo () {
    try {
      const response = await axios.get(
        `${this.restURL}mining/getMiningInfo`,
        _this.axiosOptions
      )
      return response.data
    } catch (error) {
      if (error.response && error.response.data) throw error.response.data
      else throw error
    }
  }

  async getNetworkHashps (nblocks = 120, height = 1) {
    try {
      const response = await axios.get(
        `${this.restURL}mining/getNetworkHashps?nblocks=${nblocks}&height=${height}`,
        _this.axiosOptions
      )
      return response.data
    } catch (error) {
      if (error.response && error.response.data) throw error.response.data
      else throw error
    }
  }

  async submitBlock (hex, parameters) {
    let path = `${this.restURL}mining/submitBlock/${hex}`
    if (parameters) path = `${path}?parameters=${parameters}`

    try {
      const response = await axios.post(path, _this.axiosOptions)
      return response.data
    } catch (error) {
      if (error.response && error.response.data) throw error.response.data
      else throw error
    }
  }
}

module.exports = Mining