Price range and exact word matching.

site/index.html

@@ -14,9 +14,14 @@
         <h2>Heisse Preise</h2>        
         <input id="search" class="search" type="text" placeholder="Produkte suchen...">
         <div class="filters">
-            <input id="billa" type="checkbox" checked="true"><label>Billa</label>
-            <input id="spar" type="checkbox" checked="true"><label>Spar</label>
-            <input id="eigenmarken" type="checkbox"><label>Nur CLEVER & S-BUDGET</label>
+            <label><input id="billa" type="checkbox" checked="true"> Billa</label>
+            <label><input id="spar" type="checkbox" checked="true"> Spar</label>
+            <label><input id="eigenmarken" type="checkbox"> Nur CLEVER & S-BUDGET</label>            
+        </div>
+        <div class="filters">
+            <label>Min € <input id="minprice" type="number" min="0" value="0"></label>
+            <label>Max € <input id="maxprice" type="number" min="0" value="100"></label>
+            <label><input id="exact" type="checkbox"> Exaktes Wort</label>
         </div>
         <div class="results">
             <table id="result">

site/main.js

@@ -2,13 +2,16 @@ let items = null;
 
 async function load() {
     let response = await fetch("api/index")
-    items = await response.json();    
+    items = await response.json();
+    let units = {};
     for (item of items) {        
         item.search = item.name + " " + item.unit;
-        item.search = item.search.toLowerCase();     
+        item.search = item.search.toLowerCase();   
+        units[item.unit] = item.unit; 
     }
 
-    console.log(items.length);
+    console.log(Object.keys(units));
+    
     setupUI();
 }
 
@@ -18,7 +21,7 @@ function dom(el, html) {
     return element;
 }
 
-function searchItems(query) {
+function searchItems(query, exact) {
     if (query.length < 3) return [];
 
     const tokens = query.split(/\s+/).map(token => token.toLowerCase());
@@ -27,10 +30,22 @@ function searchItems(query) {
     for (item of items) {
         let allFound = true;
         for (token of tokens) {
-            if (item.search.indexOf(token) < 0) {
+            if (token.length == 0) continue;
+            const index = item.search.indexOf(token);
+            if (index < 0) {
                 allFound = false;
                 break;
             }
+            if (exact) {
+                if (index > 0 && (item.search.charAt(index - 1) != " " && item.search.charAt(index - 1) != "-")) {
+                    allFound = false;
+                    break;
+                }
+                if (index + token.length < item.search.length && item.search.charAt(index + token.length) != " ") {
+                    allFound = false;
+                    break;
+                }
+            }
         }
         if (allFound)
             hits.push({ doc: item });
@@ -38,12 +53,23 @@ function searchItems(query) {
     return hits;
 }
 
+function toNumber(value, defaultValue) {
+    try {
+        return Number.parseFloat(value);
+    } catch(e) {
+        return defaultValue;
+    }
+}
+
 function search(query) {    
-    const hits = searchItems(query);
+    const exact = document.querySelector("#exact").checked;
+    const hits = searchItems(query, exact);
     const table = document.querySelector("#result");
     const eigenmarken = document.querySelector("#eigenmarken").checked;
     const billa = document.querySelector("#billa").checked;
-    const spar = document.querySelector("#spar").checked;
+    const spar = document.querySelector("#spar").checked;    
+    const minPrice = toNumber(document.querySelector("#minprice").value, 0);
+    const maxPrice = toNumber(document.querySelector("#maxprice").value, 100);
     table.innerHTML = "";
 
     if (hits.length == 0) return;
@@ -60,6 +86,8 @@ function search(query) {
         const name = hit.doc.name.toLowerCase();
         if (hit.doc.store == "billa" && !billa) continue;
         if (hit.doc.store == "spar" && !spar) continue;
+        if (hit.doc.price < minPrice) continue;
+        if (hit.doc.price > maxPrice) continue;
         if (eigenmarken && !(name.indexOf("clever") == 0 || name.indexOf("s-budget") == 0))
             continue;
 
@@ -73,13 +101,20 @@ function search(query) {
 }
 
 function setupUI() {
-    const searchInput = document.querySelector("#search");
+    let searchInput = document.querySelector("#search");
     searchInput.addEventListener("input", (event) => {
+        if (searchInput.value.length == 0) {
+            document.querySelector("#minprice").value = 0;
+            document.querySelector("#maxprice").value = 100;
+        }
         search(searchInput.value);
     });
     document.querySelector("#eigenmarken").addEventListener("change", () => search(searchInput.value));
     document.querySelector("#billa").addEventListener("change", () => search(searchInput.value));
     document.querySelector("#spar").addEventListener("change", () => search(searchInput.value));
+    document.querySelector("#exact").addEventListener("change", () => search(searchInput.value));
+    document.querySelector("#minprice").addEventListener("change", () => search(searchInput.value));
+    document.querySelector("#maxprice").addEventListener("change", () => search(searchInput.value));
 }
 
 load();

site/style.css

@@ -23,6 +23,10 @@ body {
     margin-bottom: 1em;
 }
 
+input[type="number"] {
+    max-width: 3em;
+}
+
 .results {
     display: flex;
     flex-direction: row;
@@ -31,6 +35,23 @@ body {
 
 table {
     width: 100%;
+    border-collapse: collapse;
+    border: 1px solid;
+}
+
+th {
+    border: 1px solid;
+    padding: 0.2em;
+    background: #aaa;  
+}
+
+tr {
+    border-collapse: collapse;
+    border: 1px solid #ddd;    
+}
+
+td {
+    padding: 0.2em;
 }
 
 th {