import React, { PureComponent } from 'react'
import PropTypes from 'prop-types'
import classnames from 'classnames'
import Button from '../../../components/ui/button'
import LockIcon from '../../../components/ui/lock-icon'
import {
  NETWORKS_ROUTE,
  NETWORKS_FORM_ROUTE,
} from '../../../helpers/constants/routes'
import NetworkDropdownIcon from '../../../components/app/dropdowns/components/network-dropdown-icon'
import NetworkForm from './network-form'

export default class NetworksTab extends PureComponent {
  static contextTypes = {
    t: PropTypes.func.isRequired,
    metricsEvent: PropTypes.func.isRequired,
  }

  static propTypes = {
    editRpc: PropTypes.func.isRequired,
    location: PropTypes.object.isRequired,
    networkIsSelected: PropTypes.bool,
    networksTabIsInAddMode: PropTypes.bool,
    networksToRender: PropTypes.arrayOf(PropTypes.object).isRequired,
    selectedNetwork: PropTypes.object,
    setNetworksTabAddMode: PropTypes.func.isRequired,
    setRpcTarget: PropTypes.func.isRequired,
    setSelectedSettingsRpcUrl: PropTypes.func.isRequired,
    showConfirmDeleteNetworkModal: PropTypes.func.isRequired,
    providerUrl: PropTypes.string,
    providerType: PropTypes.string,
    networkDefaultedToProvider: PropTypes.bool,
    history: PropTypes.object.isRequired,
    shouldRenderNetworkForm: PropTypes.bool.isRequired,
    isFullScreen: PropTypes.bool.isRequired,
  }

  componentWillUnmount() {
    this.props.setSelectedSettingsRpcUrl('')
  }

  isCurrentPath(pathname) {
    return this.props.location.pathname === pathname
  }

  renderSubHeader() {
    const { setSelectedSettingsRpcUrl, setNetworksTabAddMode } = this.props

    return (
      <div className="settings-page__sub-header">
        <span className="settings-page__sub-header-text">
          {this.context.t('networks')}
        </span>
        <div className="networks-tab__add-network-header-button-wrapper">
          <Button
            type="secondary"
            onClick={(event) => {
              event.preventDefault()
              setSelectedSettingsRpcUrl('')
              setNetworksTabAddMode(true)
            }}
          >
            {this.context.t('addNetwork')}
          </Button>
        </div>
      </div>
    )
  }

  renderNetworkListItem(network, selectRpcUrl) {
    const {
      setSelectedSettingsRpcUrl,
      setNetworksTabAddMode,
      networkIsSelected,
      providerUrl,
      providerType,
      networksTabIsInAddMode,
      history,
      isFullScreen,
    } = this.props
    const {
      border,
      iconColor,
      label,
      labelKey,
      rpcUrl,
      providerType: currentProviderType,
    } = network

    const listItemNetworkIsSelected = selectRpcUrl && selectRpcUrl === rpcUrl
    const listItemUrlIsProviderUrl = rpcUrl === providerUrl
    const listItemTypeIsProviderNonRpcType =
      providerType !== 'rpc' && currentProviderType === providerType
    const listItemNetworkIsCurrentProvider =
      !networkIsSelected &&
      !networksTabIsInAddMode &&
      (listItemUrlIsProviderUrl || listItemTypeIsProviderNonRpcType)
    const displayNetworkListItemAsSelected =
      listItemNetworkIsSelected || listItemNetworkIsCurrentProvider

    return (
      <div
        key={`settings-network-list-item:${rpcUrl}`}
        className="networks-tab__networks-list-item"
        onClick={() => {
          setNetworksTabAddMode(false)
          setSelectedSettingsRpcUrl(rpcUrl)
          if (!isFullScreen) {
            history.push(NETWORKS_FORM_ROUTE)
          }
        }}
      >
        <NetworkDropdownIcon
          backgroundColor={iconColor || 'white'}
          innerBorder={border}
        />
        <div
          className={classnames('networks-tab__networks-list-name', {
            'networks-tab__networks-list-name--selected': displayNetworkListItemAsSelected,
            'networks-tab__networks-list-name--disabled':
              currentProviderType !== 'rpc' &&
              !displayNetworkListItemAsSelected,
          })}
        >
          {label || this.context.t(labelKey)}
          {currentProviderType !== 'rpc' && (
            <LockIcon width="14px" height="17px" fill="#cdcdcd" />
          )}
        </div>
        <div className="networks-tab__networks-list-arrow" />
      </div>
    )
  }

  renderNetworksList() {
    const {
      networksToRender,
      selectedNetwork,
      networkIsSelected,
      networksTabIsInAddMode,
      networkDefaultedToProvider,
    } = this.props

    return (
      <div
        className={classnames('networks-tab__networks-list', {
          'networks-tab__networks-list--selection':
            (networkIsSelected && !networkDefaultedToProvider) ||
            networksTabIsInAddMode,
        })}
      >
        {networksToRender.map((network) =>
          this.renderNetworkListItem(network, selectedNetwork.rpcUrl),
        )}
        {networksTabIsInAddMode && (
          <div className="networks-tab__networks-list-item">
            <NetworkDropdownIcon
              backgroundColor="white"
              innerBorder="1px solid rgb(106, 115, 125)"
            />
            <div className="networks-tab__networks-list-name networks-tab__networks-list-name--selected">
              {this.context.t('newNetwork')}
            </div>
            <div className="networks-tab__networks-list-arrow" />
          </div>
        )}
      </div>
    )
  }

  renderNetworksTabContent() {
    const { t } = this.context
    const {
      setRpcTarget,
      showConfirmDeleteNetworkModal,
      setSelectedSettingsRpcUrl,
      setNetworksTabAddMode,
      selectedNetwork: {
        labelKey,
        label,
        rpcUrl,
        chainId,
        ticker,
        viewOnly,
        rpcPrefs,
        blockExplorerUrl,
      },
      networksTabIsInAddMode,
      editRpc,
      providerUrl,
      networksToRender,
      history,
      isFullScreen,
      shouldRenderNetworkForm,
    } = this.props

    return (
      <>
        {this.renderNetworksList()}
        {shouldRenderNetworkForm ? (
          <NetworkForm
            rpcUrls={networksToRender.map((network) => network.rpcUrl)}
            setRpcTarget={setRpcTarget}
            editRpc={editRpc}
            networkName={label || (labelKey && t(labelKey)) || ''}
            rpcUrl={rpcUrl}
            chainId={chainId}
            ticker={ticker}
            onClear={(shouldUpdateHistory = true) => {
              setNetworksTabAddMode(false)
              setSelectedSettingsRpcUrl('')
              if (shouldUpdateHistory && !isFullScreen) {
                history.push(NETWORKS_ROUTE)
              }
            }}
            showConfirmDeleteNetworkModal={showConfirmDeleteNetworkModal}
            viewOnly={viewOnly}
            isCurrentRpcTarget={providerUrl === rpcUrl}
            networksTabIsInAddMode={networksTabIsInAddMode}
            rpcPrefs={rpcPrefs}
            blockExplorerUrl={blockExplorerUrl}
            isFullScreen={isFullScreen}
          />
        ) : null}
      </>
    )
  }

  render() {
    const {
      setNetworksTabAddMode,
      setSelectedSettingsRpcUrl,
      history,
      isFullScreen,
      shouldRenderNetworkForm,
    } = this.props

    return (
      <div className="networks-tab__body">
        {isFullScreen && this.renderSubHeader()}
        <div className="networks-tab__content">
          {this.renderNetworksTabContent()}
          {!isFullScreen && !shouldRenderNetworkForm ? (
            <div className="networks-tab__networks-list-popup-footer">
              <Button
                type="primary"
                onClick={(event) => {
                  event.preventDefault()
                  setSelectedSettingsRpcUrl('')
                  setNetworksTabAddMode(true)
                  history.push(NETWORKS_FORM_ROUTE)
                }}
              >
                {this.context.t('addNetwork')}
              </Button>
            </div>
          ) : null}
        </div>
      </div>
    )
  }
}