refactor: migrate API scripts to a centralized directory and implement shared database configuration

api/config.php

@@ -4,10 +4,10 @@
 //  Ganti nilai di bawah sesuai pengaturan XAMPP / phpMyAdmin
 // ============================================================
 
-define('DB_HOST', 'localhost');   // biasanya localhost
+define('DB_HOST', getenv('DB_HOST') ?: 'localhost');   
-define('DB_NAME', 'gis_ptk');     // nama database (buat dulu di phpMyAdmin)
+define('DB_NAME', getenv('DB_NAME') ?: 'gis_ptk'); // <--- Sudah diubah ke gis_ptk
-define('DB_USER', 'root');        // username MySQL (default XAMPP: root)
+define('DB_USER', getenv('DB_USER') ?: 'root');        
-define('DB_PASS', '');            // password MySQL (default XAMPP: kosong)
+define('DB_PASS', getenv('DB_PASS') !== false ? getenv('DB_PASS') : '');            
 define('DB_CHARSET', 'utf8mb4');
 
 // ── Buat koneksi PDO ──────────────────────────────────────

api/delete_place.php

@@ -1,5 +1,6 @@
 <?php
-$conn = new mysqli("localhost", "root", "", "gis_project");
+require_once __DIR__ . '/config.php';
+$conn = getDB();
 
 $id = $_POST['id'];
 

api/get_places.php

@@ -1,6 +1,7 @@
 <?php
 header('Content-Type: application/json');
-$conn = new mysqli("localhost", "root", "", "gis_project");
+require_once __DIR__ . '/config.php';
+$conn = getDB();
 
 $result = $conn->query("SELECT * FROM worship_places");
 $places = [];

api/save_place.php

@@ -1,6 +1,7 @@
 <?php
 header('Content-Type: application/json');
-$conn = new mysqli("localhost", "root", "", "gis_project");
+require_once __DIR__ . '/config.php';
+$conn = getDB();
 
 $name    = $_POST['name'];
 $lat     = $_POST['lat'];

api/update_radius.php

@@ -1,5 +1,7 @@
 <?php
-$conn = new mysqli("localhost", "root", "", "gis_project");
+require_once __DIR__ . '/config.php';
+$conn = getDB();
+
 $id = $_POST['id'];
 $rad = $_POST['radius'];