362 lines
11 KiB
JavaScript
362 lines
11 KiB
JavaScript
// @flow
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import * as React from 'react';
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import {FlatList, Image, ScrollView, View} from "react-native";
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import i18n from "i18n-js";
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import {MaterialCommunityIcons} from "@expo/vector-icons";
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import ThemeManager from "../../utils/ThemeManager";
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import {Modalize} from 'react-native-modalize';
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import {Avatar, Divider, IconButton, List, Menu, Searchbar, Subheading, Text, Title} from "react-native-paper";
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const sortMode = {
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price: "0",
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name: '1',
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};
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function sortPrice(a, b) {
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return a.price - b.price;
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}
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function sortPriceReverse(a, b) {
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return b.price - a.price;
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}
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function sortName(a, b) {
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if (a.name < b.name)
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return -1;
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if (a.name > b.name)
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return 1;
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return 0;
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}
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function sortNameReverse(a, b) {
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if (a.name < b.name)
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return 1;
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if (a.name > b.name)
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return -1;
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return 0;
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}
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type Props = {
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navigation: Object,
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route: Object,
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}
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type State = {
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currentSortMode: string,
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isSortReversed: boolean,
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sortPriceIcon: React.Node,
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sortNameIcon: React.Node,
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modalCurrentDisplayItem: Object,
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currentlyDisplayedData: Array<Object>,
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menuVisible: boolean,
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};
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/**
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* Class defining proximo's article list of a certain category.
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*/
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export default class ProximoListScreen extends React.Component<Props, State> {
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modalRef: { current: null | Modalize };
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originalData: Array<Object>;
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shouldFocusSearchBar: boolean;
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onSearchStringChange: Function;
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onSelectSortModeName: Function;
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onSelectSortModePrice: Function;
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onSortMenuPress: Function;
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onSortMenuDismiss: Function;
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renderItem: Function;
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constructor(props: any) {
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super(props);
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this.modalRef = React.createRef();
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this.originalData = this.props.route.params['data']['data'];
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this.shouldFocusSearchBar = this.props.route.params['shouldFocusSearchBar'];
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this.state = {
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currentlyDisplayedData: this.originalData,
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currentSortMode: sortMode.price,
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isSortReversed: false,
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sortPriceIcon: '',
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sortNameIcon: '',
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modalCurrentDisplayItem: {},
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menuVisible: false,
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};
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this.onSearchStringChange = this.onSearchStringChange.bind(this);
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this.onSelectSortModeName = this.onSelectSortModeName.bind(this);
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this.onSelectSortModePrice = this.onSelectSortModePrice.bind(this);
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this.onSortMenuPress = this.onSortMenuPress.bind(this);
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this.onSortMenuDismiss = this.onSortMenuPress.bind(this);
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this.renderItem = this.renderItem.bind(this);
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}
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/**
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* Sets the sort mode based on the one selected.
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* If the selected mode is the current one, reverse it.
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*
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* @param mode The string representing the mode
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*/
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sortModeSelected(mode: string) {
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let isReverse = this.state.isSortReversed;
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if (mode === this.state.currentSortMode) // reverse mode
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isReverse = !isReverse; // this.state not updating on this function cycle
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else
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isReverse = false;
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this.setSortMode(mode, isReverse);
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}
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/**
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* Set the current sort mode.
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*
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* @param mode The string representing the mode
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* @param isReverse Whether to use a reverse sort
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*/
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setSortMode(mode: string, isReverse: boolean) {
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this.setState({
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currentSortMode: mode,
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isSortReversed: isReverse
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});
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let data = this.state.currentlyDisplayedData;
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switch (mode) {
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case sortMode.price:
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if (isReverse) {
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data.sort(sortPriceReverse);
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} else {
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data.sort(sortPrice);
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}
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break;
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case sortMode.name:
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if (isReverse) {
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data.sort(sortNameReverse);
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} else {
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data.sort(sortName);
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}
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break;
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}
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this.setupSortIcons(mode, isReverse);
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}
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/**
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* Set the sort mode from state when components are ready
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*/
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componentDidMount() {
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const button = this.getSortMenu.bind(this);
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const title = this.getSearchBar.bind(this);
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this.props.navigation.setOptions({
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headerRight: button,
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headerTitle: title,
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});
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this.setSortMode(this.state.currentSortMode, this.state.isSortReversed);
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}
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getSearchBar() {
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return (
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<Searchbar
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placeholder={i18n.t('proximoScreen.search')}
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onChangeText={this.onSearchStringChange}
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/>
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);
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}
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/**
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* get color depending on quantity available
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*
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* @param availableStock
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* @return
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*/
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getStockColor(availableStock: number) {
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let color: string;
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if (availableStock > 3)
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color = ThemeManager.getCurrentThemeVariables().success;
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else if (availableStock > 0)
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color = ThemeManager.getCurrentThemeVariables().warning;
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else
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color = ThemeManager.getCurrentThemeVariables().danger;
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return color;
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}
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/**
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* Set the sort menu icon based on the given mode.
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*
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* @param mode The string representing the mode
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* @param isReverse Whether to use a reversed icon
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*/
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setupSortIcons(mode: string, isReverse: boolean) {
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const downSortIcon =
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<MaterialCommunityIcons
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name={'sort-descending'}
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size={26}/>;
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const upSortIcon =
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<MaterialCommunityIcons
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name={'sort-ascending'}
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size={26}/>;
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switch (mode) {
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case sortMode.price:
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this.setState({sortNameIcon: ''});
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if (isReverse) {
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this.setState({sortPriceIcon: upSortIcon});
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} else {
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this.setState({sortPriceIcon: downSortIcon});
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}
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break;
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case sortMode.name:
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this.setState({sortPriceIcon: ''});
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if (isReverse) {
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this.setState({sortNameIcon: upSortIcon});
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} else {
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this.setState({sortNameIcon: downSortIcon});
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}
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break;
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}
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}
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sanitizeString(str: string) {
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return str.toLowerCase().normalize("NFD").replace(/[\u0300-\u036f]/g, "");
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}
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/**
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* Returns only the articles whose name contains str. Case and accents insensitive.
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* @param str
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* @returns {[]}
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*/
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filterData(str: string) {
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let filteredData = [];
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const testStr = this.sanitizeString(str);
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const articles = this.originalData;
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for (const article of articles) {
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const name = this.sanitizeString(article.name);
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if (name.includes(testStr)) {
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filteredData.push(article)
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}
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}
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return filteredData;
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}
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onSearchStringChange(str: string) {
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this.setState({
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currentlyDisplayedData: this.filterData(str)
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})
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}
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getModalContent() {
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return (
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<View style={{
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flex: 1,
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padding: 20
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}}>
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<Title>{this.state.modalCurrentDisplayItem.name}</Title>
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<View style={{
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flexDirection: 'row',
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width: '100%',
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marginTop: 10,
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}}>
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<Subheading style={{
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color: this.getStockColor(parseInt(this.state.modalCurrentDisplayItem.quantity)),
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}}>
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{this.state.modalCurrentDisplayItem.quantity + ' ' + i18n.t('proximoScreen.inStock')}
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</Subheading>
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<Subheading style={{marginLeft: 'auto'}}>{this.state.modalCurrentDisplayItem.price}€</Subheading>
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</View>
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<ScrollView>
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<View style={{width: '100%', height: 150, marginTop: 20, marginBottom: 20}}>
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<Image style={{flex: 1, resizeMode: "contain"}}
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source={{uri: this.state.modalCurrentDisplayItem.image}}/>
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</View>
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<Text>{this.state.modalCurrentDisplayItem.description}</Text>
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</ScrollView>
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</View>
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);
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}
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onListItemPress(item: Object) {
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this.setState({
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modalCurrentDisplayItem: item
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});
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if (this.modalRef.current) {
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this.modalRef.current.open();
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}
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}
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onSelectSortModeName() {
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this.sortModeSelected(sortMode.name);
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}
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onSelectSortModePrice() {
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this.sortModeSelected(sortMode.price);
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}
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onSortMenuPress() {
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this.setState({menuVisible: true});
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console.log('pressed');
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}
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onSortMenuDismiss() {
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this.setState({menuVisible: false});
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}
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getSortMenu() {
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return (
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<Menu
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visible={this.state.menuVisible}
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onDismiss={this.onSortMenuDismiss}
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anchor={
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<IconButton
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icon="sort"
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color={ThemeManager.getCurrentThemeVariables().text}
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size={26}
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onPress={this.onSortMenuPress}
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/>
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}
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>
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<Menu.Item onPress={this.onSelectSortModeName} title={i18n.t('proximoScreen.sortName')}/>
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<Divider/>
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<Menu.Item onPress={this.onSelectSortModePrice} title={i18n.t('proximoScreen.sortPrice')}/>
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</Menu>
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);
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}
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renderItem({item}: Object) {
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const onPress = this.onListItemPress.bind(this, item);
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return (
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<List.Item
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title={item.name}
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description={item.quantity + ' ' + i18n.t('proximoScreen.inStock')}
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descriptionStyle={{color: this.getStockColor(parseInt(item.quantity))}}
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onPress={onPress}
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left={props => <Avatar.Image size={64} source={{uri: item.image}}/>}
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right={props =>
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<Text style={{fontWeight: "bold"}}>
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{item.price}€
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</Text>}
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/>
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);
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}
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keyExtractor(item: Object) {
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return item.name + item.code;
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}
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render() {
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// console.log("rendering ProximoListScreen");
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return (
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<View>
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<Modalize ref={this.modalRef}
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adjustToContentHeight
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modalStyle={{backgroundColor: ThemeManager.getCurrentThemeVariables().card}}>
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{this.getModalContent()}
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</Modalize>
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<FlatList
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data={this.state.currentlyDisplayedData}
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extraData={this.state.currentlyDisplayedData}
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keyExtractor={this.keyExtractor}
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style={{minHeight: 300, width: '100%'}}
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renderItem={this.renderItem}
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/>
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</View>
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);
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}
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}
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