<?php

error_reporting(E_ALL);
ini_set('display_errors', 1);

?>

<?php
// ============================================================
// api/points.php — CRUD for point features
// Supports: SPBU, Mosque, Poor Population
// ============================================================


require_once __DIR__ . '/../config/db.php';
require_once __DIR__ . '/../config/helpers.php';

handlePreflight();

$method = getMethod();
$db     = getDB();

switch ($method) {

    // ----------------------------------------------------------
    // GET /api/points.php          → list all points
    // GET /api/points.php?id=N     → single point
    // GET /api/points.php?category=spbu → filter by category
    // ----------------------------------------------------------
    case 'GET':
        if (isset($_GET['id'])) {
            $stmt = $db->prepare('SELECT * FROM points WHERE id = ?');
            $stmt->execute([(int)$_GET['id']]);
            $row = $stmt->fetch();
            if ($row) {
                jsonResponse($row);
            } else {
                jsonResponse(['error' => 'Point not found'], 404);
            }
        }

        $where  = '';
        $params = [];
        if (!empty($_GET['category'])) {
            $where  = 'WHERE category = ?';
            $params = [$_GET['category']];
        }

        $stmt = $db->prepare("SELECT * FROM points $where ORDER BY created_at DESC");
        $stmt->execute($params);
        $rows = $stmt->fetchAll();

        // Return as GeoJSON FeatureCollection
        $features = [];
        foreach ($rows as $row) {
            $features[] = [
                'type'       => 'Feature',
                'geometry'   => [
                    'type'        => 'Point',
                    'coordinates' => [(float)$row['longitude'], (float)$row['latitude']],
                ],
                'properties' => [
                    'id'          => $row['id'],
                    'name'        => $row['name'],
                    'category'    => $row['category'],
                    'subtype'     => $row['subtype'],
                    'description' => $row['description'],
                    'created_at'  => $row['created_at'],
                    'tanggal_lahir' => $row['tanggal_lahir'],
                    'pendidikan' => $row['pendidikan'],
                    'pekerjaan' => $row['pekerjaan'],
                    'jumlah_tanggungan' => $row['jumlah_tanggungan'],
                    'riwayat_penyakit' => $row['riwayat_penyakit'],
                    'alamat' => $row['alamat'],
                    'status_verifikasi' => $row['status_verifikasi'],
                ],
            ];
        }
        jsonResponse([
            'type'     => 'FeatureCollection',
            'features' => $features,
        ]);
        break;

    // ----------------------------------------------------------
    // POST /api/points.php — create a point
    // Body: { name, category, subtype, latitude, longitude, description }
    // ----------------------------------------------------------
    case 'POST':
        $body = getRequestBody();

        $required = ['name', 'category', 'latitude', 'longitude'];
        foreach ($required as $field) {
            if (empty($body[$field]) && $body[$field] !== 0) {
                jsonResponse(['error' => "Field '$field' is required"], 422);
            }
        }

        $allowed = ['spbu', 'mosque', 'poor'];
        if (!in_array($body['category'], $allowed, true)) {
            jsonResponse(['error' => 'Invalid category'], 422);
        }

        $subtype = (!empty($body['subtype'])) ? $body['subtype'] : null;
        $description = (!empty($body['description'])) ? $body['description'] : null;
        $tanggal_lahir = (!empty($body['tanggal_lahir'])) ? $body['tanggal_lahir'] : null;
        $pendidikan = (!empty($body['pendidikan'])) ? $body['pendidikan'] : null;
        $pekerjaan = (!empty($body['pekerjaan'])) ? $body['pekerjaan'] : null;
        $jumlah_tanggungan = (isset($body['jumlah_tanggungan']) && $body['jumlah_tanggungan'] !== '') ? (int)$body['jumlah_tanggungan'] : null;
        $riwayat_penyakit = (!empty($body['riwayat_penyakit'])) ? $body['riwayat_penyakit'] : null;
        $alamat = (!empty($body['alamat'])) ? $body['alamat'] : null;
        $status_verifikasi = (!empty($body['status_verifikasi'])) ? $body['status_verifikasi'] : 'Menunggu Verifikasi';

        $stmt = $db->prepare(
            'INSERT INTO points (
                name,
                category,
                subtype,
                latitude,
                longitude,
                description,
                tanggal_lahir,
                pendidikan,
                pekerjaan,
                jumlah_tanggungan,
                riwayat_penyakit,
                alamat,
                status_verifikasi
            )
            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)'
        );
        $stmt->execute([
            $body['name'],
            $body['category'],
            $subtype,
            (float)$body['latitude'],
            (float)$body['longitude'],
            $description,

            $tanggal_lahir,
            $pendidikan,
            $pekerjaan,
            $jumlah_tanggungan,
            $riwayat_penyakit,
            $alamat,

            $status_verifikasi
        ]);

        $id = (int)$db->lastInsertId();
        $stmt2 = $db->prepare('SELECT * FROM points WHERE id = ?');
        $stmt2->execute([$id]);
        jsonResponse($stmt2->fetch(), 201);
        break;

    // ----------------------------------------------------------
    // PUT /api/points.php?id=N — update a point
    // Body: { name, category, subtype, latitude, longitude, description }
    // ----------------------------------------------------------
    case 'PUT':
        if (empty($_GET['id'])) {
            jsonResponse(['error' => 'id is required'], 400);
        }
        $body = getRequestBody();
        $id   = (int)$_GET['id'];

        // Check exists
        $stmt = $db->prepare('SELECT id FROM points WHERE id = ?');
        $stmt->execute([$id]);
        if (!$stmt->fetch()) {
            jsonResponse(['error' => 'Point not found'], 404);
        }

        $subtype = (!empty($body['subtype'])) ? $body['subtype'] : null;
        $description = (!empty($body['description'])) ? $body['description'] : null;
        $tanggal_lahir = (!empty($body['tanggal_lahir'])) ? $body['tanggal_lahir'] : null;
        $pendidikan = (!empty($body['pendidikan'])) ? $body['pendidikan'] : null;
        $pekerjaan = (!empty($body['pekerjaan'])) ? $body['pekerjaan'] : null;
        $jumlah_tanggungan = (isset($body['jumlah_tanggungan']) && $body['jumlah_tanggungan'] !== '') ? (int)$body['jumlah_tanggungan'] : null;
        $riwayat_penyakit = (!empty($body['riwayat_penyakit'])) ? $body['riwayat_penyakit'] : null;
        $alamat = (!empty($body['alamat'])) ? $body['alamat'] : null;
        $status_verifikasi = (!empty($body['status_verifikasi'])) ? $body['status_verifikasi'] : 'Menunggu Verifikasi';

        $stmt = $db->prepare(
            'UPDATE points SET
                name=?,
                category=?,
                subtype=?,
                latitude=?,
                longitude=?,
                description=?,
                tanggal_lahir=?,
                pendidikan=?,
                pekerjaan=?,
                jumlah_tanggungan=?,
                riwayat_penyakit=?,
                alamat=?,
                status_verifikasi=?
                WHERE id=?'
        );
        $stmt->execute([
            $body['name'] ?? '',
            $body['category'] ?? 'spbu',
            $subtype,

            (float)($body['latitude'] ?? 0),
            (float)($body['longitude'] ?? 0),

            $description,

            $tanggal_lahir,
            $pendidikan,
            $pekerjaan,
            $jumlah_tanggungan,
            $riwayat_penyakit,
            $alamat,

            $status_verifikasi,

            $id
        ]);

        $stmt2 = $db->prepare('SELECT * FROM points WHERE id = ?');
        $stmt2->execute([$id]);
        jsonResponse($stmt2->fetch());
        break;

    // ----------------------------------------------------------
    // DELETE /api/points.php?id=N — delete a point
    // ----------------------------------------------------------
    case 'DELETE':
        if (empty($_GET['id'])) {
            jsonResponse(['error' => 'id is required'], 400);
        }
        $id   = (int)$_GET['id'];
        $stmt = $db->prepare('DELETE FROM points WHERE id = ?');
        $stmt->execute([$id]);
        if ($stmt->rowCount() === 0) {
            jsonResponse(['error' => 'Point not found'], 404);
        }
        jsonResponse(['message' => 'Point deleted', 'id' => $id]);
        break;

    default:
        jsonResponse(['error' => 'Method not allowed'], 405);
}