From 120807314dc375a32ce6817a2956f88f1fd88a85 Mon Sep 17 00:00:00 2001
From: Francis Anthony <fcaboyo@gmail.com>
Date: Wed, 26 Jun 2024 18:38:07 +0800
Subject: [PATCH] map test

---
 app/listings/page.tsx | 165 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 163 insertions(+), 2 deletions(-)

diff --git a/app/listings/page.tsx b/app/listings/page.tsx
index 3393735b..9ab50f1a 100644
--- a/app/listings/page.tsx
+++ b/app/listings/page.tsx
@@ -1,6 +1,167 @@
+"use client"
+import PageLayout from "@/components/_app/page-layout";
+
+import { Feature, MapBrowserEvent, View } from "ol";
+import Map from 'ol/Map';
+import { Geometry } from "ol/geom";
+import Point from "ol/geom/Point";
+import TileLayer from "ol/layer/Tile";
+import VectorLayer from "ol/layer/Vector";
+import { fromLonLat } from "ol/proj";
+import OSM from "ol/source/OSM";
+import VectorSource from "ol/source/Vector";
+import { Fill, Stroke, Style, Text } from "ol/style";
+import CircleStyle from "ol/style/Circle";
+import Select from 'ol/interaction/Select';
+import { useEffect } from "react";
+import { click, singleClick } from "ol/events/condition";
+import MapBrowserEventType from "ol/MapBrowserEventType";
+
 export default function Home() {
+    // Default styles
+    const iconDefaultStyle = new Style({
+        image: new CircleStyle({
+            radius: 6,
+            fill: new Fill({
+                color: '#fbbf24',
+            }),
+            stroke: new Stroke({
+                color: '#fef3c7',
+                width: 2,
+            }),
+        }),
+    })
+    const textDefaultStyle = new Style({
+        text: new Text({
+            backgroundStroke: new Stroke({
+                color: '#fbbf24',
+                width: 6,
+                lineCap: 'round',
+                lineJoin: 'round',
+            }),
+            backgroundFill: new Fill({
+                color: '#fbbf24',
+            }),
+            fill: new Fill({
+                color: '#1F2937'
+            }),
+            font: '1rem sans-serif',
+            text: "₱20K",
+            padding: [2, 2, 2, 2],
+        }),
+    });
+
+    // Selected styles
+    const iconBackgroundOverlayStyle = new Style({
+        image: new CircleStyle({
+            radius: 16,
+            fill: new Fill({
+                color: '#FBBF2430',
+            }),
+        }),
+    });
+    const textSelectedStyle = new Style({
+        text: new Text({
+            backgroundStroke: new Stroke({
+                color: '#fbbf24',
+                width: 6,
+                lineCap: 'round',
+                lineJoin: 'round',
+            }),
+            backgroundFill: new Fill({
+                color: '#fbbf24',
+            }),
+            fill: new Fill({
+                color: '#1F2937'
+            }),
+            font: 'bold 1rem sans-serif',
+            text: "₱20K",
+            padding: [2, 2, 2, 2],
+        }),
+    });
+
+    // Map icon feature
+    const iconFeature = new Feature(new Point(fromLonLat([0, 0])))
+    iconFeature.setStyle(iconDefaultStyle)
+
+    const iconSelectedFeature = new Feature(new Point(fromLonLat([20, 0])))
+    iconSelectedFeature.setStyle([iconBackgroundOverlayStyle, iconDefaultStyle])
+
+    // Map text feature
+    const textFeature = new Feature(new Point(fromLonLat([0, 20])))
+    textFeature.setStyle(textDefaultStyle)
+
+    const textSelectedFeature = new Feature(new Point(fromLonLat([20, 20])))
+    textSelectedFeature.setStyle(textSelectedStyle);
+
+    const features = [
+        iconFeature, iconSelectedFeature,
+        textFeature, textSelectedFeature
+    ]
+
+    useEffect(() => {
+        let selected: Feature<Geometry> | undefined;
+
+        const map = new Map({
+            target: 'map',
+            layers: [
+                new TileLayer({
+                    source: new OSM(),
+                }),
+                new VectorLayer({
+                    source: new VectorSource({
+                        features: features,
+                    }),
+                })
+            ],
+            view: new View({
+                center: [0, 0],
+                zoom: 2,
+            }),
+        });
+
+        // TODO: improve use select interaction; demo on click (for show listing card) https://openlayers.org/en/latest/examples/select-features.html
+        // demo on hover (for change map pos style) https://openlayers.org/en/latest/examples/select-hover-features.html
+        map.on('pointermove', (e) => {
+            if (selected) {
+                // revert back to original style if not same hovered
+                // FUTURE: if zoom level (zoom-in) is text feature, use textDefaultStyle
+                // FUTURE: if zoom level (zoom-out) is icon feature, use iconDefaultStyle
+                if (selected === iconFeature) {
+                    selected.setStyle(iconDefaultStyle)
+                } else if (selected === textFeature) {
+                    selected.setStyle(textDefaultStyle)
+                }
+                selected = undefined
+                map.getViewport().style.cursor = 'auto'
+            }
+
+            map.forEachFeatureAtPixel(e.pixel, (f) => {
+                // TODO: animate change of style https://openlayers.org/en/latest/examples/feature-animation.html
+                // Icon hover
+                if (iconFeature === f) {
+                    selected = f;
+                    selected.setStyle([iconBackgroundOverlayStyle, iconDefaultStyle])
+                    map.getViewport().style.cursor = 'pointer'
+                    return;
+                }
+
+                // Text hover
+                if (textFeature === f) {
+                    selected = f;
+                    selected.setStyle(textSelectedStyle);
+                    map.getViewport().style.cursor = 'pointer'
+                    return;
+                }
+            })
+        })
+
+        return () => map.dispose()
+    }, []);
+
     return (
-        <main className='flex flex-col gap-5'>
-        </main>
+        <PageLayout>
+            <div id="map" className="w-full h-96 transition-all" />
+        </PageLayout>
     );
 }