First commit / commit pertama

project_final/api/heatmap.php

@@ -0,0 +1,31 @@
+<?php
+/**
+ * api/heatmap.php — Titik kepadatan kemiskinan agregat (KF-08).
+ *
+ * GET → daftar [lat, lng, weight] tanpa data pribadi (aman untuk publik).
+ *   weight = jumlah_tanggungan + 1 (intensitas kepadatan).
+ */
+require_once __DIR__ . '/../config/db.php';
+require_once __DIR__ . '/helpers.php';
+
+$pdo = Database::getConnection();
+
+if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
+    sendError('Method not allowed', 405);
+}
+
+$stmt = $pdo->query(
+    "SELECT ST_Y(geom) AS lat, ST_X(geom) AS lng, jumlah_tanggungan
+     FROM warga_miskin"
+);
+
+$points = [];
+while ($r = $stmt->fetch()) {
+    $points[] = [
+        (float)$r['lat'],
+        (float)$r['lng'],
+        (int)$r['jumlah_tanggungan'] + 1,
+    ];
+}
+
+sendSuccess($points, 'Heatmap Kepadatan');