Implement a basic autocomplete style search

frontend/src/lib/components/Energy/EmptyFoodComp.svelte

@@ -3,6 +3,8 @@
 	import { main } from "$wails/models";
 	import { CreateFood, GetLastPer100 } from "$wails/main/App";
 	import { foodStore } from "$lib/store/Energy/foodStore";
+	import FoodSearchEntry from "./FoodSearchEntry.svelte";
+	import { onMount } from "svelte";
 
 	let item: main.Food = {
 		food: "",
@@ -20,6 +22,16 @@
 	let per100Edited: boolean = false;
 	let per100Element: HTMLTableCellElement;
 	let nameElement: HTMLTableCellElement;
+	let autocompleteList: HTMLUListElement;
+	let foodSearch: main.Food[] = [];
+
+	// Maybe it would be a good idea to use $ instead of update down there...
+	// Maybe it's a topic for another day
+	$: {
+		if (!name) {
+			foodSearch = [];
+		}
+	}
 
 	async function update(event: KeyboardEvent & { currentTarget: EventTarget & HTMLTableCellElement }) {
 		name = name.trim();
@@ -27,6 +39,11 @@
 		description = description.trim();
 		per100 = per100.trim();
 
+		if (!name) {
+			foodSearch = [];
+			return;
+		}
+
 		if (!per100Edited && event.currentTarget == per100Element) per100Edited = true;
 
 		if (event.key == "Enter") {
@@ -50,27 +67,53 @@
 
 			foodStore.update((value) => [res.data, ...value]);
 			nameElement.focus();
+			foodSearch = [];
 		}
 
 		if (!per100Edited)
 			GetLastPer100(name.trim()).then((res) => {
-				console.log(res.data);
 				if (res.success && res.data) {
-					console.log(res.data[0].food);
-					per100 = res.data[0].per100.toString();
+					foodSearch = res.data;
 				}
 			});
 	}
+
+	let hiLiteIndex: number | null = null;
+	function navigateList(e: KeyboardEvent) {
+		if (e.key === "ArrowDown" && hiLiteIndex && hiLiteIndex <= foodSearch.length - 1) {
+			hiLiteIndex === null ? (hiLiteIndex = 0) : (hiLiteIndex += 1);
+		} else if (e.key === "ArrowUp" && hiLiteIndex !== null) {
+			hiLiteIndex === 0 ? (hiLiteIndex = foodSearch.length - 1) : (hiLiteIndex -= 1);
+		} else if (e.key === "Enter") {
+			// @ts-ignore ITS NOT NULL YOU ASSHAT
+			// WE CHECKED
+			// ITS NOT
+			setInputVal(foodSearch[hiLiteIndex]);
+		} else {
+			return;
+		}
+	}
+	function setInputVal(val: string) {
+		name = val;
+		hiLiteIndex = null;
+		foodSearch = [];
+	}
+
+	$: {
+		if (nameElement && autocompleteList) {
+			const { top, left, height } = nameElement.getBoundingClientRect();
+			autocompleteList.style.top = `${top + height}px`;
+			autocompleteList.style.left = `${left}px`;
+		}
+	}
 </script>
 
 <template>
-	<tr class="border-b border-gray-200 dark:border-gray-700 text-lg font-bold">
+	<tr class="border-b border-gray-200 dark:border-gray-700 text-lg font-bold relative">
 		<th
 			class="px-6 py-4 font-medium text-gray-900 whitespace-nowrap bg-gray-50 dark:text-white dark:bg-gray-800"
 			scope="row"
-		>
-		</th>
-		<!-- svelte-ignore a11y-autofocus -->
+		></th>
 		<td
 			bind:innerText={name}
 			class:border-[3px]={!name}
@@ -80,15 +123,13 @@
 			autofocus
 			on:keydown={update}
 			bind:this={nameElement}
-		>
-		</td>
+		/>
 		<td
 			bind:innerText={description}
 			class="px-6 py-4 bg-gray-50 dark:bg-gray-800 overflow-hidden"
 			contenteditable="true"
 			on:keydown={update}
-		>
-		</td>
+		/>
 		<td
 			bind:innerText={amount}
 			class:border-[3px]={!amount}
@@ -96,8 +137,7 @@
 			class="px-6 py-4 overflow-hidden"
 			contenteditable="true"
 			on:keydown={update}
-		>
-		</td>
+		/>
 		<td
 			bind:this={per100Element}
 			bind:innerText={per100}
@@ -106,7 +146,13 @@
 			class:border-orange-600={!per100}
 			contenteditable="true"
 			on:keydown={update}
-		>
-		</td>
+		/>
 	</tr>
+	{#if foodSearch.length > 0}
+		<ul bind:this={autocompleteList} class="z-50 fixed top-0 left-0 w-3/12 border border-x-gray-800">
+			{#each foodSearch as f, i}
+				<FoodSearchEntry itemLabel={f.food} highlighted={i === hiLiteIndex} on:click={() => setInputVal(f)} />
+			{/each}
+		</ul>
+	{/if}
 </template>

frontend/src/lib/components/Energy/FoodSearchEntry.svelte

@@ -0,0 +1,13 @@
+<script>
+	export let itemLabel;
+	export let highlighted;
+</script>
+
+<!-- svelte-ignore a11y-click-events-have-key-events -->
+<li
+	class="list-none border-b border-gray-800 z-50 px-2 py-2 cursor-pointer bg-[#1b2636] hover:bg-[#81921f] hover:text-white active:bg-DodgerBlue active:text-white text-lg"
+	class:bg-DodgerBlue={highlighted}
+	class:text-white={highlighted}
+	on:click>
+	{itemLabel}
+</li>