Merge pull request #229 from wri/feat/TM-846_site_polygons

[TM-846] Start up controller for Site Polygons data

app/Helpers/GeometryHelper.php

@@ -0,0 +1,117 @@
+<?php
+
+namespace App\Helpers;
+
+use App\Models\V2\PolygonGeometry;
+use App\Models\V2\Projects\Project;
+use Illuminate\Support\Facades\Log;
+
+class GeometryHelper
+{
+    public static function getPolygonsBbox($polygonsIds)
+    {
+        $envelopes = PolygonGeometry::whereIn('uuid', $polygonsIds)
+          ->selectRaw('ST_ASGEOJSON(ST_Envelope(geom)) as envelope')
+          ->get();
+
+        $maxX = $maxY = PHP_INT_MIN;
+        $minX = $minY = PHP_INT_MAX;
+
+        foreach ($envelopes as $envelope) {
+            $geojson = json_decode($envelope->envelope);
+            $coordinates = $geojson->coordinates[0];
+
+            foreach ($coordinates as $point) {
+                $x = $point[0];
+                $y = $point[1];
+                $maxX = max($maxX, $x);
+                $minX = min($minX, $x);
+                $maxY = max($maxY, $y);
+                $minY = min($minY, $y);
+            }
+        }
+
+        $bboxCoordinates = [$minX, $minY, $maxX, $maxY];
+
+        return $bboxCoordinates;
+    }
+
+    public function updateProjectCentroid(string $projectUuid)
+    {
+        try {
+            $centroid = $this->centroidOfProject($projectUuid);
+
+            if ($centroid === null) {
+                Log::warning("Invalid centroid for projectUuid: $projectUuid");
+            }
+
+            $centroidArray = json_decode($centroid, true);
+
+            $latitude = $centroidArray['coordinates'][1];
+            $longitude = $centroidArray['coordinates'][0];
+
+
+            Project::where('uuid', $projectUuid)
+                ->update([
+                    'lat' => $latitude,
+                    'long' => $longitude,
+                ]);
+
+
+            Log::info("Centroid updated for projectUuid: $projectUuid");
+
+            return 'Centroids updated successfully!';
+        } catch (\Exception $e) {
+            Log::error("Error updating centroid for projectUuid: $projectUuid");
+
+            return response()->json([
+              'message' => 'Error updating centroid',
+              'error' => $e->getMessage(),
+            ], 500);
+        }
+
+    }
+
+    public function centroidOfProject($projectUuid)
+    {
+        $project = Project::where('uuid', $projectUuid)->first();
+
+        if (! $project) {
+            return null;
+        }
+
+        $polyIds = $project->sitePolygons()->pluck('poly_id')->toArray();
+
+        if (empty($polyIds)) {
+            return null;
+        }
+
+        $centroids = PolygonGeometry::selectRaw('ST_AsGeoJSON(ST_Centroid(geom)) AS centroid')
+          ->whereIn('uuid', $polyIds)
+          ->get();
+
+        if ($centroids->isEmpty()) {
+            return null; // Return null if no centroids are found
+        }
+
+        $centroidCount = $centroids->count();
+        $totalLatitude = 0;
+        $totalLongitude = 0;
+
+        foreach ($centroids as $centroid) {
+            $centroidData = json_decode($centroid->centroid, true);
+            $totalLatitude += $centroidData['coordinates'][1];
+            $totalLongitude += $centroidData['coordinates'][0];
+        }
+
+        $averageLatitude = $totalLatitude / $centroidCount;
+        $averageLongitude = $totalLongitude / $centroidCount;
+
+        $centroidOfCentroids = json_encode([
+          'type' => 'Point',
+          'coordinates' => [$averageLongitude, $averageLatitude],
+        ]);
+
+        return $centroidOfCentroids;
+    }
+}

app/Http/Controllers/V2/Sites/SitePolygonDataController.php

@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Http\Controllers\V2\Sites;
+
+use App\Helpers\GeometryHelper;
+use App\Http\Controllers\Controller;
+use App\Models\V2\Sites\SitePolygon;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Support\Facades\Log;
+
+class SitePolygonDataController extends Controller
+{
+    public function getSitePolygonData($site): JsonResponse
+    {
+        try {
+            $sitePolygons = SitePolygon::where('site_id', $site)->get();
+
+            return response()->json($sitePolygons);
+        } catch (\Exception $e) {
+            Log::error($e->getMessage());
+
+            return response()->json(['error' => 'An error occurred while fetching site polygons'], 500);
+        }
+    }
+
+    public function getBboxOfCompleteSite($site): JsonResponse
+    {
+        try {
+            $sitePolygons = SitePolygon::where('site_id', $site)->get();
+            if ($sitePolygons->isEmpty()) {
+                return response()->json(['error' => 'No polygons found for the site'], 404);
+            }
+
+            $polygonsIds = $sitePolygons->pluck('poly_id');
+            $bboxCoordinates = GeometryHelper::getPolygonsBbox($polygonsIds);
+
+            return response()->json(['bbox' => $bboxCoordinates]);
+        } catch (\Exception $e) {
+            Log::error($e->getMessage());
+
+            return response()->json(['error' => 'An error occurred while fetching the bounding box coordinates'], 500);
+        }
+    }
+}