heissepreise/site/views/items-filter.js
2023-09-17 19:48:29 +02:00

432 lines
19 KiB
JavaScript

const { today, parseNumber, dom, getBooleanAttribute, queryItems, queryItemsAlasql, log, deltaTime } = require("../js/misc");
const { stores, STORE_KEYS, BUDGET_BRANDS } = require("../model/stores");
const { fromCategoryCode, categories } = require("../model/categories");
const { settings } = require("../model");
const { View } = require("./view");
const { __ } = require("../browser_i18n");
class ItemsFilter extends View {
constructor() {
super();
this._emptyQuery = getBooleanAttribute(this, "emptyquery");
this._filterByPriceChanges = getBooleanAttribute(this, "pricechanges");
this._filterByPriceDirection = getBooleanAttribute(this, "pricedirection");
this._filterByStores = getBooleanAttribute(this, "stores");
this._filterByMisc = getBooleanAttribute(this, "misc");
this._noChartClear = getBooleanAttribute(this, "nochartclear");
this._availableOption = getBooleanAttribute(this, "availableoption");
const hidePriceChanges = this._filterByPriceChanges ? "" : "hidden";
const hidePriceDirection = this._filterByPriceDirection ? "" : "hidden";
const hideStores = this._filterByStores ? "" : "hidden";
const hideMisc = this._filterByMisc ? "" : "hidden";
const hideAvailableObption = this._availableOption ? "" : "hidden";
const placeholder = this.hasAttribute("placeholder")
? this.getAttribute("placeholder")
: __("ItemsFilter_Produkte suchen...") + " " + __("(min. 3 Zeichen)");
this.innerHTML = /*html*/ `
${
settings.stickySearch
? `
<div class="wrapper wrapper--search">
<input x-id="query" x-state x-input-debounce class="rounded-lg px-2 py-1 w-full" type="text" placeholder="${placeholder}" />
<label for="filter-toggle-search"><abbr title="${__("ItemsFilter_Filter anzeigen/ausblenden")}">🎚</abbr></label>
</div>
<input class="toggle toggle--hidden" type="checkbox" id="filter-toggle-search" />
<div class="wrapper wrapper--sticky">
`
: `
<input x-id="query" x-state x-input-debounce class="rounded-lg px-2 py-1 w-full" type="text" placeholder="${placeholder}" />
`
}
<div x-id="sqlError" class="hidden mt-4 p-4">
</div>
<div x-id="stores" class="flex justify-center gap-2 flex-wrap mt-4 ${hideStores}">
<custom-checkbox x-id="allStores" label="${__("ItemsFilter_Alle")}" ${
Object.values(stores).every((store) => store.defaultChecked) ? "checked" : ""
}></custom-checkbox>
${STORE_KEYS.map(
(store) => /*html*/ `
<custom-checkbox
x-id="${store}" x-state x-change
label="${stores[store].name}"
class="${stores[store].color}"
${settings[store] ? "checked" : ""}
></custom-checkbox>`
).join("")}
</div>
<div x-id="priceChanges" class="text-sm flex justify-center gap-4 mt-4 ${hidePriceChanges}">
<label>
<input x-id="priceChangesToday" x-state type="radio" name="type" checked /> ${__("ItemsFilter_Datum")}
<select x-id="priceChangesDate" x-state x-change class="bg-white rounded-full">
<option>${today()}</option>
</select>
</label>
<label>
<input x-id="priceChangesCheaper" x-state type="radio" name="type" /> ${__("ItemsFilter_Billiger seit letzter Änderung")}
</label>
</div>
<div x-id="misc" class="flex items-center justify-center flex-wrap gap-2 mt-4 ${hideMisc}">
<custom-checkbox
x-id="budgetBrands" x-state x-change
label="${__("ItemsFilter_Nur Diskont-Eigenmarken")}"
abbr="${BUDGET_BRANDS.map((budgetBrand) => budgetBrand.toUpperCase()).join(", ")}"
></custom-checkbox>
<custom-checkbox x-id="bio" x-state x-change label="${__("ItemsFilter_Nur Bio")}"></custom-checkbox>
<custom-checkbox x-id="exact" x-state x-change label="${__("ItemsFilter_Exaktes Wort")}"></custom-checkbox>
<label class="cursor-pointer inline-flex items-center gap-x-1 rounded-full bg-white border border-gray-400 px-2 py-1 text-xs font-medium text-gray-600">
${__("ItemsFilter_Preis €")} <input x-id="minPrice" x-state x-input class="w-12" type="number" min="0" value="0">
-
<input x-id="maxPrice" x-state x-input-debounce class="w-12" type="number" min="0" value="100">
</label>
</div>
<div x-id="priceDirection" class="flex justify-center gap-2 mt-4 ${this._hideMisc ? "" : "mb-4"} ${hidePriceDirection}">
<custom-checkbox x-id="priceIncreased" x-state x-change label="${__("ItemsFilter_Teurer")}" checked class="gray"></custom-checkbox>
<custom-checkbox x-id="priceDecreased" x-state x-change label="${__("ItemsFilter_Billiger")}" checked class="gray"></custom-checkbox>
</div>
<div x-id="categories" class="flex justify-center gap-2 flex-wrap mt-4 hidden">
${categories
.map(
(category, index) => /*html*/ `
<custom-checkbox
x-id="category-${index}" x-state x-change
label="${category.name}"
class="indigo"
></custom-checkbox>`
)
.join("")}
</div>
${
settings.stickySearch
? `
</div>
`
: ""
}
`;
this.classList.add("items-filter");
if (settings.stickySearch) {
this.classList.add("sticky");
this.style = "top: -1px;z-index:20;";
}
const elements = this.elements;
elements.query.addEventListener("input", () => {
let query = elements.query.value.trim();
if (query.length > 0 && query.charAt(0) == "!") {
elements.stores.classList.add("hidden");
elements.misc.classList.add("hidden");
} else {
if (!hideStores) elements.stores.classList.remove("hidden");
if (!hideMisc) elements.misc.classList.remove("hidden");
}
});
const handleChangeAll = () => {
const checked = elements.allStores.checked;
STORE_KEYS.forEach((store) => (elements[store].checked = checked));
this.fireChangeEvent();
};
const storeElements = STORE_KEYS.map((store) => elements[store]);
storeElements.forEach((store) =>
store.addEventListener("change", () => {
const allChecked = storeElements.every((store) => store.checked);
elements.allStores.removeEventListener("change", handleChangeAll);
elements.allStores.checked = allChecked;
elements.allStores.addEventListener("change", handleChangeAll);
})
);
elements.allStores.addEventListener("x-change", handleChangeAll);
elements.priceChangesToday.addEventListener("change", () => {
this.fireChangeEvent();
});
elements.priceChangesCheaper.addEventListener("change", () => {
this.fireChangeEvent();
});
this.setupEventHandlers();
this.addEventListener("x-change", () => {
this.filter();
});
}
setVisibility(query, numCategories, elements) {
if (query.length > 0 && query.charAt(0) == "!") {
elements.stores.classList.add("hidden");
elements.priceChanges.classList.add("hidden");
elements.misc.classList.add("hidden");
elements.priceDirection.classList.add("hidden");
elements.categories.classList.add("hidden");
} else {
if (this._filterByStores) elements.stores.classList.remove("hidden");
if (this._filterByPriceChanges) elements.priceChanges.classList.remove("hidden");
if (this._filterByMisc) elements.misc.classList.remove("hidden");
if (this._filterByPriceDirection) {
if (elements.priceChangesToday.checked) elements.priceDirection.classList.remove("hidden");
else elements.priceDirection.classList.add("hidden");
}
if (this.model.filteredItems.length > 0 && numCategories != 0) {
elements.categories.classList.remove("hidden");
} else {
elements.categories.classList.add("hidden");
}
}
}
filter() {
if (!this.model) return;
const start = performance.now();
const elements = this.elements;
elements.sqlError.classList.add("hidden");
this.model.totalItems = this.model.items.length;
let filteredItems = new Array(this.model.items.length);
for (let i = 0; i < this.model.items.length; i++) {
filteredItems[i] = this.model.items[i];
}
let query = elements.query.value.trim();
if (query.length == 0 && this._emptyQuery) {
this.setVisibility(query, 0, elements);
this.model.removeListener(this._listener);
this.model.filteredItems = [];
this.model.addListener(this._listener);
return;
}
/*if (settings.onlyAvailable) {
filteredItems = filteredItems.filter((item) => !item.unavailable);
}*/
this.model.lastDate = null;
if (this._filterByPriceChanges) {
if (elements.priceChangesToday.checked) {
const today = elements.priceChangesDate.value;
this.model.priceChangesToday = today;
filteredItems = filteredItems.filter((item) => {
if (item.priceHistory.length == 1) return false;
for (let i = 0; i < item.priceHistory.length; i++) {
if (item.priceHistory[i].date === today && i + 1 < item.priceHistory.length) {
return true;
}
}
return false;
});
} else {
filteredItems = filteredItems.filter((item) => {
if (item.priceHistory.length == 1) return false;
return item.priceHistory[0].price < item.priceHistory[1].price;
});
}
this.model.totalItems = filteredItems.length;
}
if (this._filterByPriceDirection) {
const increased = elements.priceIncreased.checked;
const decreased = elements.priceDecreased.checked;
filteredItems = filteredItems.filter((item) => {
if (item.priceHistory.length == 1) return false;
if (this._filterByPriceChanges && elements.priceChangesToday.checked) {
const today = elements.priceChangesDate.value;
for (let i = 0; i < item.priceHistory.length; i++) {
if (item.priceHistory[i].date == today && i + 1 < item.priceHistory.length) {
if (increased && item.priceHistory[i].price > item.priceHistory[i + 1].price) {
return true;
}
if (decreased && item.priceHistory[i].price < item.priceHistory[i + 1].price) {
return true;
}
}
}
} else {
if (increased && item.priceHistory[0].price > item.priceHistory[1].price) return true;
if (decreased && item.priceHistory[0].price < item.priceHistory[1].price) return true;
}
return false;
});
}
// Don't apply store and misc filters if query is an alasql query.
if (query.charAt(0) != "!") {
if (this._filterByStores) {
filteredItems = filteredItems.filter((item) => elements[item.store].checked);
}
if (this._filterByMisc) {
const budgetBrands = elements.budgetBrands.checked;
const bio = elements.bio.checked;
const minPrice = parseNumber(elements.minPrice.value, 0);
const maxPrice = parseNumber(elements.maxPrice.value, 100);
filteredItems = filteredItems.filter((item) => {
if (budgetBrands && !BUDGET_BRANDS.some((budgetBrand) => item.name.toLowerCase().indexOf(budgetBrand) >= 0)) return false;
if (bio && !item.bio) return false;
if (minPrice > item.price) return false;
if (maxPrice < item.price) return false;
return true;
});
}
}
if (query.length > 0) {
if (query.charAt(0) == "!") {
try {
filteredItems = queryItemsAlasql(query, filteredItems);
} catch (e) {
elements.sqlError.classList.remove("hidden");
elements.sqlError.innerText = e.message;
filteredItems = [];
this.lastQueryTokens = [];
}
} else {
const result = queryItems(query, filteredItems, elements.exact.checked);
filteredItems = result.items;
this.model.lastQueryTokens = result.queryTokens;
}
}
let queryChanged = this.model.lastQuery && this.model.lastQuery != query;
if (queryChanged && !this._noChartClear) {
filteredItems.forEach((item) => (item.chart = false));
}
this.model.lastQuery = query;
if (this.model.numItemsBeforeCategories && this.model.numItemsBeforeCategories != filteredItems.length) queryChanged = true;
this.model.numItemsBeforeCategories = filteredItems.length; // This is not entirely correct, but I'm too lazy...
const filteredCategories = {};
filteredItems.forEach((item) => {
const category = categories[fromCategoryCode(item.category)[0]];
filteredCategories[category.index] = filteredCategories[category.index] ? filteredCategories[category.index] + 1 : 1;
});
for (const category of categories) {
const checkbox = elements["category-" + category.index];
if (filteredCategories[category.index] > 0) {
if (queryChanged) checkbox.checked = false;
checkbox.label = `${category.name} (${filteredCategories[category.index]})`;
checkbox.classList.remove("hidden");
} else {
if (queryChanged) checkbox.checked = true;
checkbox.classList.add("hidden");
}
}
if (Object.keys(filteredCategories).length != 0) {
let numEnabledCategories = 0;
Object.keys(filteredCategories).forEach((categoryIndex) => {
if (elements["category-" + categoryIndex].checked) {
numEnabledCategories++;
}
});
if (numEnabledCategories > 0) {
filteredItems = filteredItems.filter((item) => {
const category = categories[fromCategoryCode(item.category)[0]];
return elements["category-" + category.index].checked;
});
}
}
log(`ItemsFilter - Filtering ${this.model.items.length} took ${deltaTime(start).toFixed(4)} secs, ${filteredItems.length} results.`);
this.model.removeListener(this._listener);
this.model.filteredItems = filteredItems;
this.model.addListener(this._listener);
this.setVisibility(query, Object.keys(filteredCategories).length, elements);
}
render() {
const start = performance.now();
const elements = this.elements;
const items = this.model.items;
if (this._filterByPriceChanges) {
const dates = {};
for (const item of items) {
if (item.priceHistory.length == 1) continue;
for (let i = 0; i < item.priceHistory.length; i++) {
const price = item.priceHistory[i];
if (i + 1 < item.priceHistory.length) {
if (item.priceHistory[i].price != item.priceHistory[i + 1].price) {
if (i == 0 || item.priceHistory[i].date != item.priceHistory[i - 1].date) {
dates[price.date] = dates[price.date] ? dates[price.date] + 1 : 1;
}
}
}
}
}
const priceChangesDates = elements.priceChangesDate;
priceChangesDates.innerHTML = "";
for (const date of Object.keys(dates).sort((a, b) => b.localeCompare(a))) {
const dateDom = dom("option");
dateDom.value = date;
dateDom.innerText = `${date} (${dates[date]})`;
priceChangesDates.append(dateDom);
}
}
log(`ItemsFilter - rendering items filter took ${deltaTime(start)}`);
}
get shareableState() {
const state = this.state;
const shareableState = Object.keys(state)
.sort()
.filter((el) => !STORE_KEYS.includes(el))
.map((el) => {
let value = state[el];
if (value === true) value = ".";
if (value === false) value = "-";
if (el == "query") value = encodeURIComponent(value);
return value;
})
.join(";");
const disabledStores = STORE_KEYS.filter((storeName) => {
const store = state[storeName];
if (stores[storeName].defaultChecked && !store) return true;
if (!stores[storeName].defaultChecked && store) return true;
return false;
}).join(";");
if (disabledStores.length > 0) return shareableState + ";" + disabledStores;
else return shareableState;
}
set shareableState(shareableState) {
const values = shareableState.split(";");
const state = this.state;
let storeIndex = -1;
Object.keys(state)
.sort()
.filter((el) => !STORE_KEYS.includes(el))
.forEach((el, index) => {
if (values[index] === ".") state[el] = true;
else if (values[index] === "-") state[el] = false;
else if (el == "query") state[el] = values[index];
else state[el] = values[index];
storeIndex = index + 1;
});
if (storeIndex < values.length) {
for (let i = storeIndex; i < values.length; i++) {
const storeName = values[i];
state[storeName] = !stores[storeName].defaultChecked;
}
}
this.state = state;
}
}
customElements.define("items-filter", ItemsFilter);