- auto character encoding recognition and conversion to UTF-8 added

game_manager_frame.php

@@ -72,6 +72,8 @@ if (!get_autologin_state() || (($user_data["privilege"] !== PRIVILEGE_CREATOR) &
                         <td>
                             <input type="button" id="download_challenges_btn" value="Letöltés CSV-ként" shown="false"
                                    onclick="download_challenges()">
+                            <input type="button" id="edit_challenges_btn" value="Szerkesztés"
+                                   onclick="edit_challenges()" shown="false">
                             <input type="button" value="Új feltöltése" id="show_game_file_upload"
                                    onclick="show_hide_gamefile_upload(true)">
                             <input type="file" id="game_file" shown="false">

gamemgr.php

@@ -87,21 +87,43 @@ function get_all_game_data_by_contributor_nickname(string $nickname): array
     return $game_headers;
 }
 
-function import_challenges_from_csv(string $csv_path, string $gameid)
+const CSV_ENCODINGS = ["Windows-1252", "UTF-8"];
+
+function import_challenges_from_csv(string $csv_path, string $gameid): array
 {
     $game_data = get_game($gameid);
     if (count($game_data) === []) {
-        return;
+        return ["n" => 0, "encoding" => ""];
     }
 
+    // convert text encoding into UTF-8
+    $data = file_get_contents($csv_path);
+    $encoding = "UNKNOWN";
+    foreach (CSV_ENCODINGS as $enc) { // detect encoding
+        if (mb_check_encoding($data, $enc)) {
+            $encoding = $enc;
+            break;
+        }
+    }
+
+    if ($encoding !== "UNKNOWN") { // if encoding has been detected successfully
+        $data = mb_convert_encoding($data, "UTF-8", $encoding);
+        file_put_contents($csv_path, $data);
+    }
+
+    // load challenges
     $challenges = [];
 
     // load filled CSV file
     $f = fopen($csv_path, "r");
     if (!$f) { // failed to open file
-        return;
+        return ["n" => 0, "encoding" => $encoding];
     }
     while ($csvline = fgetcsv($f)) {
+        // skip empty lines
+        if (trim(implode("", $csvline)) === "") {
+            continue;
+        }
         if (count($csvline) >= 3) {
             $ch = [
                 "question" => $csvline[0],
@@ -122,6 +144,8 @@ function import_challenges_from_csv(string $csv_path, string $gameid)
     // update game with game file present
     $game_data["game_file_present"] = true;
     update_game($game_data);
+
+    return ["n" => count($challenges), "encoding" => $encoding];
 }
 
 function is_user_contributor_to_game(string $gameid, string $nickname): bool

interface.php

@@ -146,6 +146,8 @@ if (($privilege !== PRIVILEGE_CREATOR) && ($privilege !== PRIVILEGE_QUIZMASTER))
     goto print_result;
 }
 
+$requester_nickname = ($privilege === PRIVILEGE_QUIZMASTER) ? "*" : $nickname; // "*" means every game
+
 switch ($action) {
     case "create_game":
     case "update_game":
@@ -207,7 +209,8 @@ switch ($action) {
 
                     // update game file if supplied
                     if (isset($_FILES["game_file"])) {
-                        import_challenges_from_csv($_FILES["game_file"]["tmp_name"], $data["_id"]);
+                        $challenge_import_status = import_challenges_from_csv($_FILES["game_file"]["tmp_name"], $data["_id"]);
+                        $result = json_encode($challenge_import_status);
                     }
                 }
             }
@@ -215,7 +218,6 @@ switch ($action) {
         break;
     case "get_all_game_headers":
         {
-            $requester_nickname = ($privilege === PRIVILEGE_QUIZMASTER) ? "*" : $nickname; // "*" means every game
             $game_headers = get_all_game_data_by_contributor_nickname($requester_nickname);
             foreach ($game_headers as &$game_header) {
                 resolve_groupids($game_header["groups"]);
@@ -223,6 +225,15 @@ switch ($action) {
             $result = json_encode($game_headers);
         }
         break;
+    case "get_challenges":
+        {
+            $gameid = ($_REQUEST["gameid"] ?: "");
+            $game_data = get_game($gameid);
+            if ((count($game_data) > 0) && (($requester_nickname === "*") || (is_user_contributor_to_game($gameid, $requester_nickname)))) {
+                $result = file_get_contents(get_game_file_by_gameid($gameid));
+            }
+        }
+        break;
     case "delete_games":
         {
             $gameids = explode_list(trim($_REQUEST["ids"] ?: ""));

js/gamemgr.js

@@ -46,6 +46,7 @@ function create_edit_game(game = null) {
     let download_challenges_btn = document.getElementById("download_challenges_btn");
     let show_game_file_upload_btn = document.getElementById("show_game_file_upload");
     let cancel_game_file_upload_btn = document.getElementById("cancel_game_file_upload");
+    let edit_challenges_btn = document.getElementById("edit_challenges_btn");
     let groupF = document.getElementById("game_groups");
     let time_limitedChk = document.getElementById("time_limited");
     let time_limitF = document.getElementById("time_limit");
@@ -90,6 +91,13 @@ function create_edit_game(game = null) {
     let game_file_present = updating && game["game_file_present"];
     if (game_file_present) {
         show(download_challenges_btn);
+        show(edit_challenges_btn);
+        edit_challenges_btn.onclick = () => {
+            edit_challenges(game);
+        };
+    } else {
+        hide(download_challenges_btn);
+        hide(edit_challenges_btn);
     }
     show_hide_gamefile_upload(false);
 
@@ -118,10 +126,15 @@ function create_edit_game(game = null) {
                 action: updating ? "update_game" : "create_game",
                 data: JSON.stringify(reqData)
             };
-            if (gameFileF.files.length > 0) { // append game file if selected
+            let uploading_game_file = gameFileF.files.length > 0;
+            if (uploading_game_file) { // append game file if selected
                 req["game_file"] = gameFileF.files[0];
             }
             request(req).then(resp => {
+                if (uploading_game_file) {
+                    let file_upload_status = JSON.parse(resp);
+                    alert(`Importálás eredménye:\n${file_upload_status["n"]} kérdés, ${file_upload_status["encoding"]} szövegkódolással`);
+                }
                 list_all_games();
             });
             hide("game_editor_window");
@@ -191,6 +204,13 @@ function handle_time_limit_chkbox() {
     time_limitF.disabled = !time_limitedChk.checked;
 }
 
+function edit_challenges(game) {
+    let req = {action: "get_challenges", gameid: game["_id"]};
+    request(req).then(resp => {
+        console.log(JSON.parse(resp));
+    });
+}
+
 // function hint_all_groups(target_element_id) {
 //     const hintbox_insert_fn = (record) => {
 //         let targetF = document.getElementById(target_element_id);