Update

Documentation/ideas.md

@@ -12,6 +12,7 @@
 - Create more unit tests for `tactility-core`
 - Make a URL handler. Use it for handling local files. Match file types with apps.
 - Fix Development service: when no SD card is present, the app fails to install. Consider installing to `/data`
+- Refactor `PropertiesFile.cpp` to use `tt::file::readLines()` (see TODO in code)
 
 ## Lower Priority
 

Tactility/Source/file/PropertiesFile.cpp

@@ -31,6 +31,7 @@ bool loadPropertiesFile(const std::string& filePath, std::function<void(const st
         const std::string input_string = input_start;
 
         uint16_t line_count = 0;
+        // TODO: Rewrite to use file::readLines()
         string::split(input_string, "\n", [&line_count, &filePath, &callback](auto token) {
             line_count++;
             std::string key, value;

Tactility/Source/i18n/I18n.cpp

@@ -3,6 +3,7 @@
 
 #include <cstring>
 #include <vector>
+#include <Tactility/file/File.h>
 
 namespace tt::i18n {
 
@@ -28,7 +29,7 @@ public:
 
 static std::string getDesiredLocale() {
     // TODO: Implement locale settings
-    return "nl-NL";
+    return "en-GB";
 }
 
 static std::string getFallbackLocale() {
@@ -36,42 +37,37 @@ static std::string getFallbackLocale() {
     return "en-GB";
 }
 
-static FILE* openI18nFile(const std::string& path) {
+static std::string getI18nDataFilePath(const std::string& path) {
     auto locale = getDesiredLocale();
     auto desired_file_path = std::format("{}/{}.i18n", path, locale);
-    auto* file = fopen(desired_file_path.c_str(), "r");
+    if (file::isFile(desired_file_path)) {
-    if (file == nullptr) {
+        return desired_file_path;
-        auto fallback_locale = getFallbackLocale();
+    } else {
         TT_LOG_W(TAG, "Translations not found for %s at %s", locale.c_str(), desired_file_path.c_str());
-        auto fallback_file_path = std::format("{}/{}.i18n", path, getFallbackLocale());
-        file = fopen(fallback_file_path.c_str(), "r");
-        if (file == nullptr) {
-            TT_LOG_W(TAG, "Fallback translations not found for %s at %s", fallback_locale.c_str(), fallback_file_path.c_str());
-        }
     }
-    return file;
+
+    auto fallback_locale = getFallbackLocale();
+    auto fallback_file_path = std::format("{}/{}.i18n", path, getFallbackLocale());
+    if (file::isFile(fallback_file_path)) {
+        return fallback_file_path;
+    } else {
+        TT_LOG_W(TAG, "Fallback translations not found for %s at %s", fallback_locale.c_str(), fallback_file_path.c_str());
+        return "";
+    }
 }
 
 std::shared_ptr<IndexedText> loadIndexedText(const std::string& path) {
     std::vector<std::string> data;
+    auto file_path = getI18nDataFilePath(path);
+    if (file_path.empty()) {
+        return nullptr;
+    }
 
     // We lock on folder level, because file is TBD
-    file::withLock<void>(path, [&path, &data] {
+    file::withLock<void>(path, [&file_path, &data] {
-        auto* file = openI18nFile(path);
+        file::readLines(file_path, true, [&data](const char* line) {
-        if (file != nullptr) {
+            data.push_back(line);
-            char line[1024];
+        });
-            // TODO: move to file::readLines(filePath, skipEndline, callback)
-            while (fgets(line, sizeof(line), file) != nullptr) {
-                // Strip newline
-                size_t line_length = strlen(line);
-                if (line_length > 0 && line[line_length - 1] == '\n') {
-                    line[line_length - 1] = '\0';
-                }
-                // Publish
-                data.push_back(line);
-            }
-            fclose(file);
-        }
     });
 
     if (data.empty()) {

TactilityCore/Include/Tactility/file/File.h

@@ -110,4 +110,6 @@ int scandir(
     ScandirSort _Nullable sort
 );
 
+bool readLines(const std::string& filePath, bool stripNewLine, std::function<void(const char* line)> callback);
+
 }

TactilityCore/Source/file/File.cpp

@@ -222,4 +222,28 @@ bool isDirectory(const std::string& path) {
     return stat(path.c_str(), &stat_result) == 0 && S_ISDIR(stat_result.st_mode);
 }
 
+bool readLines(const std::string& filepath, bool stripNewLine, std::function<void(const char* line)> callback) {
+    auto* file = fopen(filepath.c_str(), "r");
+    if (file == nullptr) {
+        return false;
+    }
+
+    char line[1024];
+
+    while (fgets(line, sizeof(line), file) != nullptr) {
+        // Strip newline
+        if (stripNewLine) {
+            size_t line_length = strlen(line);
+            if (line_length > 0 && line[line_length - 1] == '\n') {
+                line[line_length - 1] = '\0';
+            }
+        }
+        // Publish
+        callback(line);
+    }
+
+    fclose(file);
+    return true;
+}
+
 }