// Copyright 2015-2017 Parity Technologies (UK) Ltd.
// This file is part of Parity.

// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with Parity.  If not, see <http://www.gnu.org/licenses/>.

import React, { Component } from 'react';
import PropTypes from 'prop-types';

import { Dialog, FlatButton, SelectField, MenuItem } from 'material-ui';

import InputText from '../../Inputs/Text';
import Loading from '../../Loading';
import Token from '../../Tokens/Token';

import { SIMPLE_TOKEN_ADDRESS_TYPE, SIMPLE_TLA_TYPE } from '../../Inputs/validation';

import styles from '../actions.css';

const initState = {
  queryKey: 'tla',
  form: {
    valid: false,
    value: ''
  }
};

export default class QueryAction extends Component {
  static propTypes = {
    show: PropTypes.bool.isRequired,
    loading: PropTypes.bool.isRequired,

    onClose: PropTypes.func.isRequired,
    handleQueryToken: PropTypes.func.isRequired,

    data: PropTypes.object,
    notFound: PropTypes.bool
  }

  state = initState;

  render () {
    return (
      <Dialog
        title={ 'search for a token' }
        open={ this.props.show }
        className={ styles.dialog }
        onRequestClose={ this.onClose }
        actions={ this.renderActions() }
      >
        { this.renderContent() }
      </Dialog>
    );
  }

  renderActions () {
    const { loading, data, notFound } = this.props;

    if (loading) {
      return (
        <FlatButton
          label='Loading...'
          primary
          disabled
        />
      );
    }

    const complete = data || notFound;

    if (complete) {
      return ([
        <FlatButton
          label='Close'
          primary
          onTouchTap={ this.onClose }
        />
      ]);
    }

    const isValid = this.state.form.valid;

    return ([
      <FlatButton
        label='Cancel'
        primary
        onTouchTap={ this.onClose }
      />,
      <FlatButton
        label='Query'
        primary
        disabled={ !isValid }
        onTouchTap={ this.onQuery }
      />
    ]);
  }

  renderContent () {
    const { loading, notFound, data } = this.props;

    if (loading) {
      return (
        <Loading size={ 1 } />
      );
    }

    if (notFound) {
      return (
        <p>No token has been found in the registry...</p>
      );
    }

    if (data) {
      return this.renderData();
    }

    return this.renderForm();
  }

  renderData () {
    const { data } = this.props;

    return (
      <Token
        fullWidth
        tla={ data.tla }
      />
    );
  }

  renderForm () {
    return (
      <div>
        <SelectField
          floatingLabelText='Select which field to query'
          fullWidth
          value={ this.state.queryKey }
          onChange={ this.onQueryKeyChange }
        >
          <MenuItem value='tla' label='TLA' primaryText='TLA' />
          <MenuItem value='address' label='Address' primaryText='Address' />
        </SelectField>

        {
          this.state.queryKey !== 'tla'
          ? (
            <InputText
              key={ 0 }

              floatingLabelText="Token's address"
              hintText='0xdeadbeef...'

              validationType={ SIMPLE_TOKEN_ADDRESS_TYPE }
              onChange={ this.onChange }
              onEnter={ this.onQuery }
            />
          )
          : (
            <InputText
              key={ 1 }

              floatingLabelText="Token's TLA"
              hintText='GAV'

              validationType={ SIMPLE_TLA_TYPE }
              onChange={ this.onChange }
              onEnter={ this.onQuery }
            />
          )
        }
      </div>
    );
  }

  onQueryKeyChange = (event, index, queryKey) => {
    this.setState({
      queryKey,
      form: {
        valid: false,
        value: ''
      }
    });
  }

  onChange = (valid, value) => {
    this.setState({
      form: {
        valid,
        value
      }
    });
  }

  onQuery = () => {
    if (!this.state.form.valid) {
      return;
    }

    const { queryKey, form } = this.state;

    this.props.handleQueryToken(queryKey, form.value);
  }

  onClose = () => {
    this.setState(initState);
    this.props.onClose();
  }
}