import PropTypes from 'prop-types'
import React, { Component } from 'react'
import Select from 'react-select'
import genAccountLink from '../../../../lib/account-link'
import Button from '../../../components/ui/button'

class AccountList extends Component {
  getHdPaths () {
    return [
      {
        label: `Ledger Live`,
        value: `m/44'/60'/0'/0/0`,
      },
      {
        label: `Legacy (MEW / MyCrypto)`,
        value: `m/44'/60'/0'`,
      },
    ]
  }

    goToNextPage = () => {
      // If we have < 5 accounts, it's restricted by BIP-44
      if (this.props.accounts.length === 5) {
        this.props.getPage(this.props.device, 1, this.props.selectedPath)
      } else {
        this.props.onAccountRestriction()
      }
    }

    goToPreviousPage = () => {
      this.props.getPage(this.props.device, -1, this.props.selectedPath)
    }

    renderHdPathSelector () {
      const { onPathChange, selectedPath } = this.props

      const options = this.getHdPaths()
      return (
        <div>
          <h3 className="hw-connect__hdPath__title">
            {this.context.t('selectHdPath')}
          </h3>
          <p className="hw-connect__msg">
            {this.context.t('selectPathHelp')}
          </p>
          <div className="hw-connect__hdPath">
            <Select
              className="hw-connect__hdPath__select"
              name="hd-path-select"
              clearable={false}
              value={selectedPath}
              options={options}
              onChange={(opt) => {
                onPathChange(opt.value)
              }}
            />
          </div>
        </div>
      )
    }

    capitalizeDevice (device) {
      return device.slice(0, 1).toUpperCase() + device.slice(1)
    }

    renderHeader () {
      const { device } = this.props
      return (
        <div className="hw-connect">
          <h3 className="hw-connect__unlock-title">
            {`${this.context.t('unlock')} ${this.capitalizeDevice(device)}`}
          </h3>
          {device.toLowerCase() === 'ledger' ? this.renderHdPathSelector() : null}
          <h3 className="hw-connect__hdPath__title">
            {this.context.t('selectAnAccount')}
          </h3>
          <p className="hw-connect__msg">{this.context.t('selectAnAccountHelp')}</p>
        </div>
      )
    }

    renderAccounts () {
      return (
        <div className="hw-account-list">
          {this.props.accounts.map((account, idx) => (
            <div className="hw-account-list__item" key={account.address}>
              <div className="hw-account-list__item__radio">
                <input
                  type="radio"
                  name="selectedAccount"
                  id={`address-${idx}`}
                  value={account.index}
                  onChange={(e) => this.props.onAccountChange(e.target.value)}
                  checked={this.props.selectedAccount === account.index.toString()}
                />
                <label className="hw-account-list__item__label" htmlFor={`address-${idx}`}>
                  <span className="hw-account-list__item__index">{account.index + 1}</span>
                  {`${account.address.slice(0, 4)}...${account.address.slice(-4)}`}
                  <span className="hw-account-list__item__balance">{`${account.balance}`}</span>
                </label>
              </div>
              <a
                className="hw-account-list__item__link"
                href={genAccountLink(account.address, this.props.network)}
                target="_blank"
                rel="noopener noreferrer"
                title={this.context.t('etherscanView')}
              >
                <img src="images/popout.svg" alt="" />
              </a>
            </div>
          ))}
        </div>
      )
    }

    renderPagination () {
      return (
        <div className="hw-list-pagination">
          <button className="hw-list-pagination__button" onClick={this.goToPreviousPage}>
            {`< ${this.context.t('prev')}`}
          </button>
          <button className="hw-list-pagination__button" onClick={this.goToNextPage}>
            {`${this.context.t('next')} >`}
          </button>
        </div>
      )
    }

    renderButtons () {
      const disabled = this.props.selectedAccount === null
      const buttonProps = {}
      if (disabled) {
        buttonProps.disabled = true
      }

      return (
        <div className="new-external-account-form__buttons">
          <Button
            type="default"
            large
            className="new-external-account-form__button"
            onClick={this.props.onCancel.bind(this)}
          >
            {this.context.t('cancel')}
          </Button>
          <Button
            type="primary"
            large
            className="new-external-account-form__button unlock"
            disabled={disabled}
            onClick={this.props.onUnlockAccount.bind(this, this.props.device)}
          >
            {this.context.t('unlock')}
          </Button>
        </div>
      )
    }

    renderForgetDevice () {
      return (
        <div className="hw-forget-device-container">
          <a onClick={this.props.onForgetDevice.bind(this, this.props.device)}>
            {this.context.t('forgetDevice')}
          </a>
        </div>
      )
    }

    render () {
      return (
        <div className="new-external-account-form account-list">
          {this.renderHeader()}
          {this.renderAccounts()}
          {this.renderPagination()}
          {this.renderButtons()}
          {this.renderForgetDevice()}
        </div>
      )
    }

}


AccountList.propTypes = {
  onPathChange: PropTypes.func.isRequired,
  selectedPath: PropTypes.string.isRequired,
  device: PropTypes.string.isRequired,
  accounts: PropTypes.array.isRequired,
  onAccountChange: PropTypes.func.isRequired,
  onForgetDevice: PropTypes.func.isRequired,
  getPage: PropTypes.func.isRequired,
  network: PropTypes.string,
  selectedAccount: PropTypes.string,
  onUnlockAccount: PropTypes.func,
  onCancel: PropTypes.func,
  onAccountRestriction: PropTypes.func,
}

AccountList.contextTypes = {
  t: PropTypes.func,
}

export default AccountList