appbaseio/reactivesearch

import React, { Component } from 'react';

import {
    addComponent,
    removeComponent,
    watchComponent,
    updateQuery,
    setQueryListener,
} from '@appbaseio/reactivecore/lib/actions';
import {
    isEqual,
    checkValueChange,
    checkSomePropChange,
    checkPropChange,
    getClassName,
} from '@appbaseio/reactivecore/lib/utils/helper';

import types from '@appbaseio/reactivecore/lib/utils/types';

import Title from '../../styles/Title';
import Container from '../../styles/Container';
import Dropdown from '../shared/Dropdown';
import { connect } from '../../utils';

class MultiDropdownRange extends Component {
    constructor(props) {
        super(props);

        this.state = {
            currentValue: [],
        };

        // selectedValues hold the selected items as keys for O(1) complexity
        this.selectedValues = {};
        this.type = 'range';
        this.locked = false;
        props.setQueryListener(props.componentId, props.onQueryChange, null);
    }

    componentWillMount() {
        this.props.addComponent(this.props.componentId);
        this.setReact(this.props);

        if (this.props.selectedValue) {
            this.selectItem(this.props.selectedValue, true);
        } else if (this.props.defaultSelected) {
            this.selectItem(this.props.defaultSelected, true);
        }
    }

    componentWillReceiveProps(nextProps) {
        checkPropChange(this.props.react, nextProps.react, () => this.setReact(nextProps));

        checkSomePropChange(this.props, nextProps, ['dataField', 'nestedField'], () => {
            this.updateQuery(this.state.currentValue, nextProps);
        });

        if (!isEqual(this.props.defaultSelected, nextProps.defaultSelected)) {
            this.selectItem(nextProps.defaultSelected, true);
        } else if (
            !isEqual(this.state.currentValue, nextProps.selectedValue)
            && (nextProps.selectedValue || nextProps.selectedValue === null)
        ) {
            this.selectItem(nextProps.selectedValue, true);
        }
    }

    componentWillUnmount() {
        this.props.removeComponent(this.props.componentId);
    }

    setReact(props) {
        if (props.react) {
            props.watchComponent(props.componentId, props.react);
        }
    }

    // parses range label to get start and end
    static parseValue = (value, props) =>
        (value ? props.data.filter(item => value.includes(item.label)) : null);

    static defaultQuery = (values, props) => {
        const generateRangeQuery = (dataField, items) => {
            if (items.length > 0) {
                return items.map(value => ({
                    range: {
                        [dataField]: {
                            gte: value.start,
                            lte: value.end,
                            boost: 2.0,
                        },
                    },
                }));
            }
            return null;
        };
        let query = null;

        if (values && values.length) {
            query = {
                bool: {
                    should: generateRangeQuery(props.dataField, values),
                    minimum_should_match: 1,
                    boost: 1.0,
                },
            };
        }
        if (query && props.nestedField) {
            return {
                query: {
                    nested: {
                        path: props.nestedField,
                        query,
                    },
                },
            };
        }

        return query;
    };

    selectItem = (item, isDefaultValue = false, props = this.props) => {
        // ignore state updates when component is locked
        if (props.beforeValueChange && this.locked) {
            return;
        }

        this.locked = true;
        let { currentValue } = this.state;

        if (!item) {
            currentValue = [];
            this.selectedValues = {};
        } else if (isDefaultValue) {
            // checking if the items in defaultSeleted exist in the data prop
            currentValue = MultiDropdownRange.parseValue(item, props);
            currentValue.forEach((value) => {
                this.selectedValues = {
                    ...this.selectedValues,
                    [value.label]: true,
                };
            });
        } else if (this.selectedValues[item.label]) {
            currentValue = currentValue.filter(value => value.label !== item.label);
            const { [item.label]: del, ...selectedValues } = this.selectedValues;
            this.selectedValues = selectedValues;
        } else {
            currentValue = [...currentValue, item];
            this.selectedValues = {
                ...this.selectedValues,
                [item.label]: true,
            };
        }
        const performUpdate = () => {
            this.setState(
                {
                    currentValue,
                },
                () => {
                    this.updateQuery(currentValue, props);
                    this.locked = false;
                    if (props.onValueChange) props.onValueChange(currentValue);
                },
            );
        };

        checkValueChange(props.componentId, currentValue, props.beforeValueChange, performUpdate);
    };

    updateQuery = (value, props) => {
        const query = props.customQuery || MultiDropdownRange.defaultQuery;

        props.updateQuery({
            componentId: props.componentId,
            query: query(value, props),
            value,
            label: props.filterLabel,
            showFilter: props.showFilter,
            URLParams: props.URLParams,
            componentType: 'MULTIDROPDOWNRANGE',
        });
    };

    render() {
        return (
            <Container style={this.props.style} className={this.props.className}>
                {this.props.title && (
                    <Title className={getClassName(this.props.innerClass, 'title') || null}>
                        {this.props.title}
                    </Title>
                )}
                <Dropdown
                    innerClass={this.props.innerClass}
                    items={this.props.data}
                    onChange={this.selectItem}
                    selectedItem={this.state.currentValue}
                    placeholder={this.props.placeholder}
                    keyField="label"
                    multi
                    returnsObject
                    themePreset={this.props.themePreset}
                />
            </Container>
        );
    }
}

MultiDropdownRange.propTypes = {
    addComponent: types.funcRequired,
    removeComponent: types.funcRequired,
    setQueryListener: types.funcRequired,
    updateQuery: types.funcRequired,
    watchComponent: types.funcRequired,
    selectedValue: types.selectedValue,
    // component props
    beforeValueChange: types.func,
    className: types.string,
    componentId: types.stringRequired,
    customQuery: types.func,
    data: types.data,
    dataField: types.stringRequired,
    defaultSelected: types.stringArray,
    filterLabel: types.filterLabel,
    innerClass: types.style,
    onQueryChange: types.func,
    nestedField: types.string,
    onValueChange: types.func,
    placeholder: types.string,
    react: types.react,
    showFilter: types.bool,
    style: types.style,
    title: types.title,
    themePreset: types.themePreset,
    URLParams: types.bool,
};

MultiDropdownRange.defaultProps = {
    className: null,
    placeholder: 'Select a value',
    showFilter: true,
    style: {},
    URLParams: false,
};

const mapStateToProps = (state, props) => ({
    selectedValue: state.selectedValues[props.componentId]
        ? state.selectedValues[props.componentId].value
        : null,
    themePreset: state.config.themePreset,
});

const mapDispatchtoProps = dispatch => ({
    addComponent: component => dispatch(addComponent(component)),
    removeComponent: component => dispatch(removeComponent(component)),
    updateQuery: updateQueryObject => dispatch(updateQuery(updateQueryObject)),
    watchComponent: (component, react) => dispatch(watchComponent(component, react)),
    setQueryListener: (component, onQueryChange, beforeQueryChange) =>
        dispatch(setQueryListener(component, onQueryChange, beforeQueryChange)),
});

export default connect(
    mapStateToProps,
    mapDispatchtoProps,
)(MultiDropdownRange);