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rancangan_sistem/README.md

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+# Rancangan Sistem Geospasial untuk Kontribusi Pengentasan Kemiskinan
+
+Ringkasan singkat: rancangan ini menggabungkan data titik (SPBU, fasilitas), jaringan jalan (polyline), parsel tanah (polygon dengan luas otomatis), dan peta tematik (choropleth). Tujuan: menyediakan basis data spasial untuk analisis kebutuhan bantuan, akses layanan, dan prioritas intervensi.
+
+Komponen:
+- Data: sampel sensus, kemiskinan, infrastruktur, peta batas administrasi, penggunaan lahan, parsel tanah.
+- Backend: API PHP ringan untuk CRUD GeoJSON + penyimpanan file atau database spatial (PostGIS direkomendasikan).
+- Frontend: Leaflet + plugins (Draw, Turf.js) untuk editing, pengukuran, dan visualisasi layer groups.
+- Analitik: agregasi statistik per kelurahan/kecamatan untuk choropleth (tingkat kemiskinan, akses fasilitas).
+
+Alur kerja singkat:
+1. Kumpulkan & validasi data atribut (nama, id, status ekonomis, luas parsel).
+2. Masukkan ke sistem: titik/line/polygon.
+3. Hitung atribut turunan: luas parsel (m²), distance-to-nearest-facility, road-condition index.
+4. Hasilkan peta tematik & laporan untuk prioritisasi intervensi.
+
+Rekomendasi teknis singkat:
+- Gunakan PostGIS untuk query spasial yang efisien.
+- Simpan snapshot GeoJSON untuk interoperabilitas.
+- Bangun API otentikasi dan logging perubahan (audit trail) untuk kebijakan bantuan.
+
+Catatan: folder lain di repo ini berisi contoh starter untuk tiap fitur (uji_spbu, fitur_jalan_parsel, layer_groups_choropleth).
+
+Global Leaflet loader:
+- File: `global/leaflet-loader.js` — tambahkan tag berikut ke halaman HTML Anda untuk memuat Leaflet dari satu sumber global:
+
+	<script src="../global/leaflet-loader.js"></script>
+
+Gunakan `rancangan_sistem/index.html` sebagai contoh integrasi: halaman akan memanggil `../get_rumah_ibadah.php` dan `../get_penduduk_miskin.php` dari root repository dan menambahkan data ke peta.

rancangan_sistem/delete_penduduk_miskin.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $id = (int)($_POST['id'] ?? 0);
+
+    if ($id <= 0) {
+        echo json_encode(['status' => 'error', 'message' => 'ID tidak valid']);
+        $conn->close();
+        exit;
+    }
+
+    $stmt = $conn->prepare("DELETE FROM penduduk_miskin WHERE id = ?");
+    $stmt->bind_param("i", $id);
+
+    if ($stmt->execute()) {
+        echo json_encode(['status' => 'success', 'message' => 'Data penduduk miskin dihapus']);
+    } else {
+        echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+    }
+
+    $stmt->close();
+}
+$conn->close();
+?>

rancangan_sistem/delete_rumah_ibadah.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $id = (int)($_POST['id'] ?? 0);
+
+    if ($id <= 0) {
+        echo json_encode(['status' => 'error', 'message' => 'ID tidak valid']);
+        $conn->close();
+        exit;
+    }
+
+    $stmt = $conn->prepare("DELETE FROM rumah_ibadah WHERE id = ?");
+    $stmt->bind_param("i", $id);
+
+    if ($stmt->execute()) {
+        echo json_encode(['status' => 'success', 'message' => 'Rumah ibadah dihapus']);
+    } else {
+        echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+    }
+
+    $stmt->close();
+}
+$conn->close();
+?>

rancangan_sistem/get_penduduk_miskin.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+$sql = "SELECT id, nama_ketua_kk, jumlah_anggota, latitude, longitude, rumah_ibadah_id, rumah_ibadah_nama, jarak_ke_rumah_ibadah_m, bantuan_status, bantuan_catatan, bantuan_updated_at, created_at 
+        FROM penduduk_miskin 
+        ORDER BY created_at DESC";
+
+$result = $conn->query($sql);
+$data = [];
+
+if (!$result) {
+    http_response_code(500);
+    echo json_encode(['status' => 'error', 'message' => 'Query gagal: ' . $conn->error]);
+    $conn->close();
+    exit;
+}
+
+if ($result->num_rows > 0) {
+    while ($row = $result->fetch_assoc()) {
+        $row['latitude'] = (float)$row['latitude'];
+        $row['longitude'] = (float)$row['longitude'];
+        $row['jumlah_anggota'] = (int)$row['jumlah_anggota'];
+        $row['rumah_ibadah_id'] = $row['rumah_ibadah_id'] !== null ? (int)$row['rumah_ibadah_id'] : null;
+        $row['jarak_ke_rumah_ibadah_m'] = $row['jarak_ke_rumah_ibadah_m'] !== null ? (float)$row['jarak_ke_rumah_ibadah_m'] : null;
+        $row['bantuan_status'] = $row['bantuan_status'] ?: 'belum';
+        $row['bantuan_catatan'] = $row['bantuan_catatan'] ?? '';
+        $data[] = $row;
+    }
+}
+
+echo json_encode($data);
+$conn->close();
+?>

rancangan_sistem/get_penduduk_miskin_geojson.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+$sql = "SELECT id, nama_ketua_kk, jumlah_anggota, latitude, longitude, rumah_ibadah_id, rumah_ibadah_nama, jarak_ke_rumah_ibadah_m, bantuan_status, bantuan_catatan, bantuan_updated_at, created_at FROM penduduk_miskin ORDER BY created_at DESC";
+$result = $conn->query($sql);
+$features = [];
+
+if ($result && $result->num_rows > 0) {
+    while ($row = $result->fetch_assoc()) {
+        $lat = isset($row['latitude']) ? (float)$row['latitude'] : null;
+        $lng = isset($row['longitude']) ? (float)$row['longitude'] : null;
+        $props = $row;
+        unset($props['latitude'], $props['longitude']);
+        $features[] = [
+            'type' => 'Feature',
+            'geometry' => [ 'type' => 'Point', 'coordinates' => [$lng, $lat] ],
+            'properties' => $props
+        ];
+    }
+}
+
+echo json_encode([ 'type' => 'FeatureCollection', 'features' => $features ]);
+$conn->close();

rancangan_sistem/get_rumah_ibadah.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+$sql = "SELECT id, nama, alamat, pic, latitude, longitude, radius_m, created_at 
+        FROM rumah_ibadah 
+        ORDER BY created_at DESC";
+
+$result = $conn->query($sql);
+$data = [];
+
+if (!$result) {
+    http_response_code(500);
+    echo json_encode(['status' => 'error', 'message' => 'Query gagal: ' . $conn->error]);
+    $conn->close();
+    exit;
+}
+
+if ($result->num_rows > 0) {
+    while ($row = $result->fetch_assoc()) {
+        $row['latitude'] = (float)$row['latitude'];
+        $row['longitude'] = (float)$row['longitude'];
+        $row['radius_m'] = (int)$row['radius_m'];
+        $data[] = $row;
+    }
+}
+
+echo json_encode($data);
+$conn->close();
+?>

rancangan_sistem/get_rumah_ibadah_geojson.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+$sql = "SELECT id, nama, alamat, pic, latitude, longitude, radius_m, created_at FROM rumah_ibadah ORDER BY created_at DESC";
+$result = $conn->query($sql);
+$features = [];
+
+if ($result && $result->num_rows > 0) {
+    while ($row = $result->fetch_assoc()) {
+        $lat = isset($row['latitude']) ? (float)$row['latitude'] : null;
+        $lng = isset($row['longitude']) ? (float)$row['longitude'] : null;
+        $props = $row;
+        unset($props['latitude'], $props['longitude']);
+        $features[] = [
+            'type' => 'Feature',
+            'geometry' => [ 'type' => 'Point', 'coordinates' => [$lng, $lat] ],
+            'properties' => $props
+        ];
+    }
+}
+
+echo json_encode([ 'type' => 'FeatureCollection', 'features' => $features ]);
+$conn->close();

rancangan_sistem/index.html

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+<!doctype html>
+<html lang="id">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+  <title>Rancangan Sistem — Integrasi Rumah Ibadah & Penduduk Miskin</title>
+  <style>html,body,#map{height:100%;margin:0} .info{position:absolute;right:8px;top:8px;z-index:400;background:#fff;padding:6px}</style>
+</head>
+<body>
+  <div id="map"></div>
+  <div class="info">Data: Rumah Ibadah & Penduduk Miskin (dari API)</div>
+
+  <script src="../global/leaflet-loader.js"></script>
+  <script>
+    (function waitForLeaflet(){
+      if(window.L) return init();
+      window.addEventListener('leaflet:loaded', init);
+      setTimeout(function(){ if(window.L) init(); }, 1000);
+      function init(){
+        const map = L.map('map').setView([-0.03,109.34],12);
+        L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',{attribution:''}).addTo(map);
+
+        const overlays = {};
+        const control = L.control.layers(null, overlays, {collapsed:false}).addTo(map);
+
+        function addGeoData(data, title){
+          try{
+            if(!data) return;
+            if(data.type==='FeatureCollection' || data.features){
+              const layer = L.geoJSON(data, {onEachFeature:function(feature,layer){
+                const p = feature.properties || {};
+                layer.bindPopup(title+'<br>'+Object.keys(p).map(k=>k+': '+p[k]).join('<br>'));
+              }}).addTo(map);
+              overlays[title]=layer; control.addOverlay(layer,title);
+            } else if(Array.isArray(data)){
+              const lg = L.layerGroup();
+              data.forEach(it=>{
+                const lat = it.lat || it.latitude || it.y;
+                const lng = it.lng || it.lon || it.longitude || it.x;
+                if(lat && lng){
+                  const m = L.marker([lat,lng]).bindPopup(title+'<br>'+(it.nama||it.name||''));
+                  lg.addLayer(m);
+                }
+              });
+              lg.addTo(map); overlays[title]=lg; control.addOverlay(lg,title);
+            }
+          }catch(e){ console.error('addGeoData error',e); }
+        }
+
+        // load rumah ibadah and penduduk miskin as GeoJSON (endpoints in this folder)
+        fetch('get_rumah_ibadah_geojson.php').then(r=>r.json()).then(j=>addGeoData(j,'Rumah Ibadah')).catch(e=>console.error(e));
+        fetch('get_penduduk_miskin_geojson.php').then(r=>r.json()).then(j=>addGeoData(j,'Penduduk Miskin')).catch(e=>console.error(e));
+      }
+    })();
+  </script>
+</body>
+</html>

rancangan_sistem/save_penduduk_miskin.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+function distanceMeters($lat1, $lng1, $lat2, $lng2) {
+    $earthRadius = 6371000;
+    $toRadians = function ($value) {
+        return $value * M_PI / 180;
+    };
+
+    $deltaLat = $toRadians($lat2 - $lat1);
+    $deltaLng = $toRadians($lng2 - $lng1);
+    $a = sin($deltaLat / 2) * sin($deltaLat / 2) + cos($toRadians($lat1)) * cos($toRadians($lat2)) * sin($deltaLng / 2) * sin($deltaLng / 2);
+
+    return 2 * $earthRadius * atan2(sqrt($a), sqrt(1 - $a));
+}
+
+function findNearestRumahIbadah($conn, $lat, $lng) {
+    $result = $conn->query("SELECT id, nama, latitude, longitude FROM rumah_ibadah ORDER BY created_at DESC");
+    if (!$result || $result->num_rows === 0) {
+        return null;
+    }
+
+    $nearest = null;
+    while ($row = $result->fetch_assoc()) {
+        $distance = distanceMeters($lat, $lng, (float)$row['latitude'], (float)$row['longitude']);
+        if ($nearest === null || $distance < $nearest['distance']) {
+            $nearest = [
+                'id' => (int)$row['id'],
+                'nama' => $row['nama'],
+                'distance' => $distance
+            ];
+        }
+    }
+
+    return $nearest;
+}
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $namaKetuaKk = trim($_POST['nama_ketua_kk'] ?? '');
+    $jumlahAnggota = (int)($_POST['jumlah_anggota'] ?? 0);
+    $lat = $_POST['latitude'] ?? null;
+    $lng = $_POST['longitude'] ?? null;
+    $rumahIbadahId = $_POST['rumah_ibadah_id'] ?? null;
+    $rumahIbadahNama = trim($_POST['rumah_ibadah_nama'] ?? '');
+    $jarak = $_POST['jarak_ke_rumah_ibadah_m'] ?? null;
+
+    if ($namaKetuaKk === '' || $jumlahAnggota <= 0 || $lat === null || $lng === null) {
+        echo json_encode(['status' => 'error', 'message' => 'Data penduduk miskin tidak lengkap']);
+        $conn->close();
+        exit;
+    }
+
+    $lat = (float)$lat;
+    $lng = (float)$lng;
+    $nearest = findNearestRumahIbadah($conn, $lat, $lng);
+
+    if (!$nearest) {
+        echo json_encode(['status' => 'error', 'message' => 'Tambahkan rumah ibadah terlebih dahulu']);
+        $conn->close();
+        exit;
+    }
+
+    $jarak = $nearest['distance'];
+    $rumahIbadahId = $nearest['id'];
+    $rumahIbadahNama = $nearest['nama'];
+
+    $stmt = $conn->prepare("INSERT INTO penduduk_miskin (nama_ketua_kk, jumlah_anggota, latitude, longitude, rumah_ibadah_id, rumah_ibadah_nama, jarak_ke_rumah_ibadah_m) VALUES (?, ?, ?, ?, ?, ?, ?)");
+    $stmt->bind_param("siddisd", $namaKetuaKk, $jumlahAnggota, $lat, $lng, $rumahIbadahId, $rumahIbadahNama, $jarak);
+
+    if ($stmt->execute()) {
+        echo json_encode(['status' => 'success', 'message' => 'Penduduk miskin berhasil disimpan']);
+    } else {
+        echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+    }
+
+    $stmt->close();
+}
+$conn->close();
+?>

rancangan_sistem/save_rumah_ibadah.php

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+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $nama = trim($_POST['nama'] ?? '');
+    $alamat = trim($_POST['alamat'] ?? '');
+    $pic = trim($_POST['pic'] ?? '');
+    $lat = $_POST['latitude'] ?? null;
+    $lng = $_POST['longitude'] ?? null;
+    $radius = $_POST['radius_m'] ?? 1000;
+
+    if ($nama === '' || $alamat === '' || $pic === '' || $lat === null || $lng === null) {
+        echo json_encode(['status' => 'error', 'message' => 'Data rumah ibadah tidak lengkap']);
+        $conn->close();
+        exit;
+    }
+
+    $lat = (float)$lat;
+    $lng = (float)$lng;
+    $radius = max(50, (int)$radius);
+
+    $stmt = $conn->prepare("INSERT INTO rumah_ibadah (nama, alamat, pic, latitude, longitude, radius_m) VALUES (?, ?, ?, ?, ?, ?)");
+    $stmt->bind_param("sssddi", $nama, $alamat, $pic, $lat, $lng, $radius);
+
+    if ($stmt->execute()) {
+        echo json_encode(['status' => 'success', 'message' => 'Rumah ibadah berhasil disimpan']);
+    } else {
+        echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+    }
+
+    $stmt->close();
+}
+$conn->close();
+?>

rancangan_sistem/update_bantuan_penduduk.php

@@ -0,0 +1,48 @@
+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
+    http_response_code(405);
+    echo json_encode(['status' => 'error', 'message' => 'Metode tidak diizinkan']);
+    $conn->close();
+    exit;
+}
+
+$id = (int)($_POST['id'] ?? 0);
+$status = strtolower(trim($_POST['bantuan_status'] ?? 'belum'));
+$catatan = trim($_POST['bantuan_catatan'] ?? '');
+
+if ($id <= 0) {
+    echo json_encode(['status' => 'error', 'message' => 'ID tidak valid']);
+    $conn->close();
+    exit;
+}
+
+if (!in_array($status, ['belum', 'proses', 'sudah'], true)) {
+    $status = 'belum';
+}
+
+$stmt = $conn->prepare("UPDATE penduduk_miskin SET bantuan_status = ?, bantuan_catatan = ?, bantuan_updated_at = CURRENT_TIMESTAMP WHERE id = ?");
+$stmt->bind_param("ssi", $status, $catatan, $id);
+
+if ($stmt->execute()) {
+    $updatedAtResult = $conn->query("SELECT bantuan_updated_at FROM penduduk_miskin WHERE id = " . (int)$id . " LIMIT 1");
+    $updatedAt = null;
+    if ($updatedAtResult && $updatedAtResult->num_rows > 0) {
+        $row = $updatedAtResult->fetch_assoc();
+        $updatedAt = $row['bantuan_updated_at'] ?? null;
+    }
+
+    echo json_encode([
+        'status' => 'success',
+        'message' => 'Status bantuan berhasil diperbarui',
+        'bantuan_updated_at' => $updatedAt
+    ]);
+} else {
+    echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+}
+
+$stmt->close();
+$conn->close();
+?>

rancangan_sistem/update_penduduk_miskin.php

@@ -0,0 +1,82 @@
+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+function distanceMeters($lat1, $lng1, $lat2, $lng2) {
+    $earthRadius = 6371000;
+    $toRadians = function ($value) {
+        return $value * M_PI / 180;
+    };
+
+    $deltaLat = $toRadians($lat2 - $lat1);
+    $deltaLng = $toRadians($lng2 - $lng1);
+    $a = sin($deltaLat / 2) * sin($deltaLat / 2) + cos($toRadians($lat1)) * cos($toRadians($lat2)) * sin($deltaLng / 2) * sin($deltaLng / 2);
+
+    return 2 * $earthRadius * atan2(sqrt($a), sqrt(1 - $a));
+}
+
+function findNearestRumahIbadah($conn, $lat, $lng) {
+    $result = $conn->query("SELECT id, nama, latitude, longitude FROM rumah_ibadah ORDER BY created_at DESC");
+    if (!$result || $result->num_rows === 0) {
+        return null;
+    }
+
+    $nearest = null;
+    while ($row = $result->fetch_assoc()) {
+        $distance = distanceMeters($lat, $lng, (float)$row['latitude'], (float)$row['longitude']);
+        if ($nearest === null || $distance < $nearest['distance']) {
+            $nearest = [
+                'id' => (int)$row['id'],
+                'nama' => $row['nama'],
+                'distance' => $distance
+            ];
+        }
+    }
+
+    return $nearest;
+}
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $id = (int)($_POST['id'] ?? 0);
+    $namaKetuaKk = trim($_POST['nama_ketua_kk'] ?? '');
+    $jumlahAnggota = (int)($_POST['jumlah_anggota'] ?? 0);
+    $lat = $_POST['latitude'] ?? null;
+    $lng = $_POST['longitude'] ?? null;
+    $rumahIbadahId = $_POST['rumah_ibadah_id'] ?? null;
+    $rumahIbadahNama = trim($_POST['rumah_ibadah_nama'] ?? '');
+    $jarak = $_POST['jarak_ke_rumah_ibadah_m'] ?? null;
+
+    if ($id <= 0 || $namaKetuaKk === '' || $jumlahAnggota <= 0 || $lat === null || $lng === null) {
+        echo json_encode(['status' => 'error', 'message' => 'Data penduduk miskin tidak lengkap']);
+        $conn->close();
+        exit;
+    }
+
+    $lat = (float)$lat;
+    $lng = (float)$lng;
+    $nearest = findNearestRumahIbadah($conn, $lat, $lng);
+
+    if (!$nearest) {
+        echo json_encode(['status' => 'error', 'message' => 'Tambahkan rumah ibadah terlebih dahulu']);
+        $conn->close();
+        exit;
+    }
+
+    $jarak = $nearest['distance'];
+    $rumahIbadahId = $nearest['id'];
+    $rumahIbadahNama = $nearest['nama'];
+
+    $stmt = $conn->prepare("UPDATE penduduk_miskin SET nama_ketua_kk = ?, jumlah_anggota = ?, latitude = ?, longitude = ?, rumah_ibadah_id = ?, rumah_ibadah_nama = ?, jarak_ke_rumah_ibadah_m = ? WHERE id = ?");
+    $stmt->bind_param("siddisdi", $namaKetuaKk, $jumlahAnggota, $lat, $lng, $rumahIbadahId, $rumahIbadahNama, $jarak, $id);
+
+    if ($stmt->execute()) {
+        echo json_encode(['status' => 'success', 'message' => 'Data penduduk miskin berhasil diperbarui']);
+    } else {
+        echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+    }
+
+    $stmt->close();
+}
+
+$conn->close();
+?>

rancangan_sistem/update_rumah_ibadah.php

@@ -0,0 +1,36 @@
+<?php
+header('Content-Type: application/json');
+include __DIR__ . '/../db_config.php';
+
+if ($_SERVER['REQUEST_METHOD'] === 'POST') {
+    $id = (int)($_POST['id'] ?? 0);
+    $nama = trim($_POST['nama'] ?? '');
+    $alamat = trim($_POST['alamat'] ?? '');
+    $pic = trim($_POST['pic'] ?? '');
+    $lat = $_POST['latitude'] ?? null;
+    $lng = $_POST['longitude'] ?? null;
+    $radius = $_POST['radius_m'] ?? 1000;
+
+    if ($id <= 0 || $nama === '' || $alamat === '' || $pic === '' || $lat === null || $lng === null) {
+        echo json_encode(['status' => 'error', 'message' => 'Data rumah ibadah tidak lengkap']);
+        $conn->close();
+        exit;
+    }
+
+    $lat = (float)$lat;
+    $lng = (float)$lng;
+    $radius = max(50, (int)$radius);
+
+    $stmt = $conn->prepare("UPDATE rumah_ibadah SET nama = ?, alamat = ?, pic = ?, latitude = ?, longitude = ?, radius_m = ? WHERE id = ?");
+    $stmt->bind_param("sssddii", $nama, $alamat, $pic, $lat, $lng, $radius, $id);
+
+    if ($stmt->execute()) {
+        echo json_encode(['status' => 'success', 'message' => 'Rumah ibadah berhasil diperbarui']);
+    } else {
+        echo json_encode(['status' => 'error', 'message' => $stmt->error]);
+    }
+
+    $stmt->close();
+}
+$conn->close();
+?>