feat: allow merging of adjacent search results

mapper/src/App.css

@@ -243,3 +243,48 @@ h2 {
 	align-items: center;
 	color: white;
 }
+
+.search-result-row {
+    display: flex;
+    align-items: center;
+    position: relative;
+}
+
+.merge-button-wrapper {
+    flex-shrink: 0;
+    width: 2em;
+    position: relative;
+    align-self: stretch;
+}
+
+.merge-button {
+    position: absolute;
+    bottom: 0;
+    left: 50%;
+    transform: translate(-50%, 50%);
+    z-index: 10;
+    background-color: #888;
+    border: 1px solid #aaa;
+    border-radius: 50%;
+    color: white;
+    cursor: pointer;
+    font-size: 0.8rem;
+    line-height: 1;
+    height: 1.5em;
+    width: 1.5em;
+    padding: 0;
+    min-width: 0;
+}
+
+.merge-button:hover {
+    background-color: #999;
+}
+
+.search-result-button-wrapper {
+    flex-grow: 1;
+}
+
+.search-result-button-wrapper button {
+    width: 100%;
+    text-align: center;
+}

mapper/src/App.js

@@ -515,7 +515,8 @@ function Menu({data, duration, setDuration, end, setEnd, slider, setSlider, subm
 			);
 
 			setActiveSearchResult(null);
-			setSearchResults(res.data);
+			const sortedData = res.data.sort((a, b) => b.start - a.start);
+			setSearchResults(sortedData);
 		} catch (error) {
 			console.error('Error during area search:', error);
 			alert('An error occurred during the search.');
@@ -554,6 +555,20 @@ function Menu({data, duration, setDuration, end, setEnd, slider, setSlider, subm
 		setSubmenu(false);
 	};
 
+	const mergeSearchResults = (index) => {
+		const newResults = [...searchResults];
+		const item1 = newResults[index];
+		const item2 = newResults[index + 1];
+
+		const mergedItem = {
+			start: item2.start,
+			end: item1.end,
+		};
+
+		newResults.splice(index, 2, mergedItem);
+		setSearchResults(newResults);
+	};
+
 	const range = parseSlider(end, duration, slider);
 	const startDate = moment(end).subtract(...duration.delta);
 
@@ -722,9 +737,7 @@ function Menu({data, duration, setDuration, end, setEnd, slider, setSlider, subm
 								<div ref={scrollContainerRef} className="search-results-container">
 									{searchResults.length > 0 ? (
 										(() => {
-											const sortedResults = [...searchResults].sort((a, b) => b.start - a.start);
-
-											const groupedResults = sortedResults.reduce((acc, result) => {
+											const groupedResults = searchResults.reduce((acc, result) => {
 												const groupKey = moment.unix(result.start).format('YYYY');
 												if (!acc[groupKey]) {
 													acc[groupKey] = [];
@@ -747,15 +760,34 @@ function Menu({data, duration, setDuration, end, setEnd, slider, setSlider, subm
 												.map(([groupKey, results]) => (
 												<div key={groupKey}>
 													<h3 className="search-results-group-header">{groupKey}</h3>
-													{results.map((result, index) => (
+													{results.map((result, indexInYear) => {
+														const absoluteIndex = searchResults.findIndex(r => r.start === result.start && r.end === result.end);
+														const isLastResultOverall = absoluteIndex === searchResults.length - 1;
+
+														return (
+															<div className="search-result-row" key={`${result.start}-${result.end}`}>
+																<div className="merge-button-wrapper">
+																	{!isLastResultOverall && (
+																		<button
+																			className="merge-button"
+																			title="Merge with next item"
+																			onClick={() => mergeSearchResults(absoluteIndex)}
+																		>
+																			&darr;&uarr;
+																		</button>
+																	)}
+																</div>
+																<div className="search-result-button-wrapper">
 																	<button
-															key={index}
 																		onClick={() => selectSearchResult(result)}
 																		className={activeSearchResult && activeSearchResult.start === result.start && activeSearchResult.end === result.end ? 'active' : ''}
 																	>
 																		{formatShortTime(result.start)} - {formatShortTime(result.end)}
 																	</button>
-													))}
+																</div>
+															</div>
+														);
+													})}
 												</div>
 											));
 										})()