API: Adds support for trial memberships

api/api_functions.php

@@ -166,15 +166,23 @@ function get_card($card_number) {
     return NULL;
 }
 
-function update_card_with_phone_number($card_number, $phone_number) {
+function update_card_with_phone_number($card_number, $phone_number, $membership_trial=NULL) {
     /* Set card active and add phone number, phone number should not exist */
     $conn = get_db_connection(DB_FETCHMODE_ORDERED);
 
     $card_number = $conn->quoteSmart($card_number);
     $phone_number = $conn->quoteSmart($phone_number);
 
+    /* Membership trial (special case) */
+    $in_autumn = intval(date("n")) >= 8 && intval(date("n")) <= 12;
+    if( $membership_trial && $in_autumn ) {
+        $membership_trial = $conn->quoteSmart($membership_trial);
+        $sql = "UPDATE din_card SET owner_phone_number=$phone_number,registered=NOW(),is_active=1,owner_membership_trial=$membership_trial WHERE card_number=$card_number";
+    } else {
+        $sql = "UPDATE din_card SET owner_phone_number=$phone_number,registered=NOW(),is_active=1 WHERE card_number=$card_number";
+    }
+
     /* Update our card */
-    $sql = "UPDATE din_card SET owner_phone_number=$phone_number,registered=NOW(),is_active=1 WHERE card_number=$card_number";
     $res = $conn->query($sql);
     if( DB::isError($res) ) { new Exception($res->getMessage()); }
 }
@@ -260,7 +268,7 @@ function get_active_card_number($cards) {
     }
     return NULL;
 }
-function add_or_renew_membership($user_id, $purchased=NULL) {
+function add_or_renew_membership($user_id, $purchased=NULL, $membership_trial=false) {
     assert($user_id !== NULL);
 
     $conn = get_db_connection(DB_FETCHMODE_ORDERED);
@@ -273,6 +281,12 @@ function add_or_renew_membership($user_id, $purchased=NULL) {
     /* ...or one year from specified date */
     $expires = date_format(date_modify($purchased, "+1 year"), "Y-m-d");
 
+    /* Membership trial (special case, ignored if not in autumn) */
+    $in_autumn = intval(date("n")) >= 8 && intval(date("n")) <= 12;
+    if( $membership_trial && $in_autumn ) {
+        $expires = date_format(date_create("first day of january next year"), "Y-m-d");
+    }
+
     $res = $conn->autoExecute("din_user", array('expires' => $expires), DB_AUTOQUERY_UPDATE, "id=$user_id");
 
     if( DB::isError($res) ) {

api/card.php

@@ -59,7 +59,13 @@ if($_SERVER['REQUEST_METHOD'] === 'POST') {
             return_json_response(array('error' => 'User with phone number: '.$phone_number.' already exists: '.$user_id.'.'), 400);
         }
 
-        update_card_with_phone_number($card_number, $phone_number);
+        /* Membership trial */
+        $membership_trial = '';
+        if( isset($data['membership_trial'])) {
+            $membership_trial = $data['membership_trial'];
+        }
+
+        update_card_with_phone_number($card_number, $phone_number, $membership_trial);
 
         /* Return fresh card object */
         return_json_response(array('user'=> NULL, 'card' => get_card($card_number)));
@@ -99,8 +105,6 @@ if($_SERVER['REQUEST_METHOD'] === 'POST') {
 
         return_json_response(array('user' => get_user_data($data['user_id'])));
     }
-
-    return_json_response(array('error' => 'Unknown action, gave up.'), 400);
 }
 else {
     /* Validate params */

api/membership.php

@@ -24,7 +24,7 @@ if($data === NULL) {
 
 $required_keys = array('apikey', 'user_id');
 $valid_keys = $required_keys;
-$valid_keys = array_merge($valid_keys, array('purchased', 'source'));
+$valid_keys = array_merge($valid_keys, array('purchased', 'source', 'membership_trial'));
 
 $valid_sources = array('kassa');
 
@@ -80,10 +80,15 @@ if( isset($data['purchased']) ) {
 if( isset($data['source']) && !in_array($data['source'], $valid_sources) ) {
     return_json_response(array('error' => 'Invalid value in field source: '.$data['source']), 400);
 }
+/* Optional membership trial */
+$membership_trial = false;
+if( isset($data['membership_trial'])) {
+    $membership_trial = true;
+}
 
 /* Add or renew membership */
 try {
-    add_or_renew_membership($data['user_id'], $purchased);
+    add_or_renew_membership($data['user_id'], $purchased, $membership_trial);
 
     $success_message = "Medlemskap registrert via ".$data['source'].".";
     if(!$first_user_membership) {