Added backend and refactored frond-end to support it.

* Removed unecesery home page
* Added PHP Api that provides auth and replaces the json-server for data storage
* Added support for alternate geocode-api
* Added registration  page

api/calls/create_item.php

@@ -0,0 +1,40 @@
+<?php
+session_start();
+if (!isset($_SESSION['name'])) {
+    http_response_code(401);
+    echo json_encode(['message' => 'Unauthorized']);
+    die;
+}
+
+require_once 'config/db.php';
+
+$data = json_decode(file_get_contents("php://input"));
+
+if (isset($data->cityName) && isset($data->country) && isset($data->flag) && isset($data->date) && isset($data->notes) && isset($data->lat) && isset($data->lng) ) {
+    $date = new DateTime($data->date);
+    $data->date = $date->format('Y-m-d');
+    
+    $query = "INSERT INTO items (cityName, country, flag, date, notes, lat, lng) VALUES (:cityName, :country, :flag, :date, :notes, :lat, :lng)";
+    $stmt = $pdo->prepare($query);
+
+    $stmt->bindParam(':cityName', $data->cityName);
+    $stmt->bindParam(':country', $data->country);
+    $stmt->bindParam(':flag', $data->flag);
+    $stmt->bindParam(':date', $data->date);
+    $stmt->bindParam(':notes', $data->notes);
+    $stmt->bindParam(':lat', $data->lat);
+    $stmt->bindParam(':lng', $data->lng);
+    
+
+    if ($stmt->execute()) {
+        $data->id = $pdo->lastInsertId();
+        echo json_encode(['message' => 'Item created successfully','id' => $data->id ,'id' => $data->id, 'cityName' => $data->cityName, 'country' => $data->country, 'flag' => $data->flag, 'date' => $data->date, 'notes' => $data->notes, 'lat' => $data->lat, 'lng' => $data->lng ]);
+    } else {
+        http_response_code(500);
+        echo json_encode(['message' => 'Failed to create item']);
+        
+    }
+} else {
+    http_response_code(400);
+    echo json_encode(['message' => 'Invalid input']);
+}

api/calls/delete_item.php

@@ -0,0 +1,22 @@
+<?php
+session_start();
+if (!isset($_SESSION['name'])) {
+    http_response_code(401);
+    echo json_encode(['message' => 'Unauthorized']);
+    die;
+}
+
+require_once 'config/db.php';
+
+$id = isset($_GET['id']) ? $_GET['id'] : die('Item ID not provided');
+
+$query = "DELETE FROM items WHERE id = :id";
+$stmt = $pdo->prepare($query);
+$stmt->bindParam(':id', $id);
+
+if ($stmt->execute()) {
+    echo json_encode(['message' => 'Item deleted successfully']);
+} else {
+    http_response_code(400);
+    echo json_encode(['message' => 'Failed to delete item']);
+}

api/calls/geocode.php

@@ -0,0 +1,53 @@
+<?php
+session_start();
+if (!isset($_SESSION['name'])) {
+    http_response_code(401);
+    echo json_encode(['message' => 'Unauthorized']);
+    die;
+}
+
+if (!isset($_GET["latitude"]) || !isset($_GET["longitude"]) || empty($_GET["latitude"]) || empty($_GET["longitude"]) ) {
+    http_response_code(400);
+    echo json_encode(['message' => 'Invalid input']);
+    die;
+}
+
+require_once 'config/geocode.php';
+$ch = curl_init();
+
+
+switch ($geocodeType) {
+    case 'bigdatacloud':
+        $requrl =  $geocodeApiurl . "?latitude=". $_GET["latitude"] ."&longitude=". $_GET["longitude"];
+        break;
+    case 'photon':
+        $requrl = $geocodeApiurl . "?lon=". $_GET["longitude"] ."&lat=". $_GET["latitude"];
+        break;
+    default:
+        http_response_code(401);
+        echo json_encode(['message' => 'Invalid request']);
+        die;
+}    
+   
+curl_setopt_array($ch, array(
+    CURLOPT_URL => $requrl,
+    CURLOPT_RETURNTRANSFER => true,
+));
+
+
+if ($geocodeApikey != false) {
+    curl_setopt($ch, CURLOPT_HTTPHEADER, ['X-Api-Key: '. $geocodeApikey]);
+}
+
+$response = json_decode(curl_exec($ch), true);
+
+curl_close($ch);
+
+switch ($geocodeType) {
+    case 'bigdatacloud':
+        echo json_encode(['city' => $response['city'], 'locality' => $response['locality'], 'countryName' => $response['countryName'],'countryCode' => $response['countryCode']]);
+        break;
+    case 'photon':
+        echo json_encode(['city' => $response['features'][0]['properties']['city'],'countryName' => $response['features'][0]['properties']['country'],'countryCode' => $response['features'][0]['properties']['countrycode']]);
+        break;
+}    

api/calls/get_item.php

@@ -0,0 +1,24 @@
+<?php
+session_start();
+if (!isset($_SESSION['name'])) {
+    http_response_code(401);
+    echo json_encode(['message' => 'Unauthorized']);
+    die;
+}
+
+require_once 'config/db.php';
+$id = isset($_GET['id']) ? $_GET['id'] : die('Item ID not provided');
+
+$query = "SELECT * FROM items WHERE id = :id";
+$stmt = $pdo->prepare($query);
+$stmt->bindParam(':id', $id);
+$stmt->execute();
+
+$item = $stmt->fetch(PDO::FETCH_ASSOC);
+
+if ($item) {
+    echo json_encode($item);
+} else {
+    http_response_code(404);
+    echo json_encode(['message' => 'Item not found']);
+}

api/calls/get_items.php

@@ -0,0 +1,17 @@
+<?php
+session_start();
+if (!isset($_SESSION['name'])) {
+    http_response_code(401);
+    echo json_encode(['message' => 'Unauthorized']);
+    die;
+}
+
+require_once 'config/db.php';
+
+$query = "SELECT * FROM items";
+$stmt = $pdo->prepare($query);
+$stmt->execute();
+
+$items = $stmt->fetchAll(PDO::FETCH_ASSOC);
+
+echo json_encode($items);