feat: Organize CMakeLists for modular source management across main components

main/CMakeLists.txt

@@ -1,5 +1,20 @@
 set(requires esp-tls spi_flash nvs_flash esp_event esp_netif esp_http_client esp_http_server esp_wifi esp_psram esp_lvgl_port)
-file(GLOB_RECURSE SRCS "main.cpp" "*.cpp" "*.c" "ui/**/*.cpp" "ui/**/*.c" "external/**/*.cpp" "external/**/*.c")
+
+# Start the source list with the known root source
+set(SRCS "${CMAKE_CURRENT_LIST_DIR}/main.cpp")
+# Delegate source collection to per-directory CMakeLists (non-recursive)
+set(SUBDIRS "display" "external" "ui" "io" "network" "info" "common")
+foreach(dir IN LISTS SUBDIRS)
+    if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/${dir}/CMakeLists.txt")
+        include("${CMAKE_CURRENT_LIST_DIR}/${dir}/CMakeLists.txt")
+    else()
+        file(GLOB DIR_SRCS "${CMAKE_CURRENT_LIST_DIR}/${dir}/*.c" "${CMAKE_CURRENT_LIST_DIR}/${dir}/*.cpp")
+        if(DIR_SRCS)
+            list(APPEND SRCS ${DIR_SRCS})
+        endif()
+    endif()
+endforeach()
+
 
 
 # Path to the source JSON in this component

main/common/CMakeLists.txt

@@ -0,0 +1 @@
+# common/ currently contains headers; no sources to add by default

main/display/CMakeLists.txt

@@ -0,0 +1,5 @@
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/eink_display_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/epd_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/lvgl_handler.cpp"
+)

main/external/CMakeLists.txt

@@ -0,0 +1,6 @@
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/mtr/mtr.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/mtr/station_info.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/mtr/line_info.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/mtr/arrival.cpp"
+)

main/info/CMakeLists.txt

@@ -0,0 +1,3 @@
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/info.cpp"
+)

main/io/CMakeLists.txt

@@ -0,0 +1,4 @@
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/fs_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/nvs_handler.cpp"
+)

main/network/CMakeLists.txt

@@ -0,0 +1,7 @@
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/http_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/wifi_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/web_server_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/udp_client.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/network.cpp"
+)

main/ui/CMakeLists.txt

@@ -0,0 +1,14 @@
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/ui_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/root_layout.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/interaction_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/events.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/apps/registry.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/widgets/textarea.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/widgets/button.cpp"
+)
+
+# Apps control: include apps/CMakeLists.txt which selects which apps to add
+if(EXISTS "${CMAKE_CURRENT_LIST_DIR}/apps/CMakeLists.txt")
+    include("${CMAKE_CURRENT_LIST_DIR}/apps/CMakeLists.txt")
+endif()

main/ui/apps/CMakeLists.txt

@@ -0,0 +1,19 @@
+# Control which apps are included in the build.
+# Override `ENABLED_APPS` from the top-level CMake command line to change apps.
+if(NOT DEFINED ENABLED_APPS)
+    set(ENABLED_APPS "iotdis")
+    endif()
+message(STATUS "Enabled apps: ${ENABLED_APPS}")
+
+foreach(app IN LISTS ENABLED_APPS)
+    set(APP_DIR "${CMAKE_CURRENT_LIST_DIR}/${app}")
+    if(EXISTS "${APP_DIR}/CMakeLists.txt")
+        include("${APP_DIR}/CMakeLists.txt")
+    else()
+        message(WARNING "App '${app}' has no CMakeLists.txt — attempting to add any sources directly")
+        file(GLOB APP_SRCS "${APP_DIR}/*.c" "${APP_DIR}/*.cpp" "${APP_DIR}/*/*.c" "${APP_DIR}/*/*.cpp")
+        if(APP_SRCS)
+            list(APPEND SRCS ${APP_SRCS})
+        endif()
+    endif()
+endforeach()

main/ui/apps/iotdis/CMakeLists.txt

@@ -0,0 +1,12 @@
+# Explicit list of iotdis app sources
+list(APPEND SRCS
+    "${CMAKE_CURRENT_LIST_DIR}/web/web_handlers.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/descriptor.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/settings/settings_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/app.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/bridge/bridge.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/ui/settings_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/ui/settings.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/ui/main_handler.cpp"
+    "${CMAKE_CURRENT_LIST_DIR}/ui/main.cpp"
+)

main/ui/apps/iotdis/bridge/bridge.cpp

@@ -135,19 +135,9 @@ void IotDisBridge::poll_task_(void* param) {
   ESP_LOGI(TAG, "Polling task started");
 
   while (!bridge->stop_polling_) {
-    ESP_LOGI(TAG, "Polling for status update...");
     bridge->poll_status_();
-    ESP_LOGI(TAG, "poll_status_() returned");
+    // Yield to allow other tasks to run
-
-    // Yield to allow display updates to complete
     taskYIELD();
-
-    // Use longer interval if in error state
-    int interval = (bridge->consecutive_failures_ >= MAX_FAILURES_BEFORE_ERROR)
-      ? ERROR_POLL_INTERVAL_MS
-      : POLL_INTERVAL_MS;
-    ESP_LOGI(TAG, "Next poll in %d ms", interval);
-    vTaskDelay(pdMS_TO_TICKS(interval));
   }
 
   ESP_LOGI(TAG, "Polling task stopped");
@@ -161,44 +151,49 @@ void IotDisBridge::poll_status_() {
     return;
   }
 
-  // First check for any unsolicited push messages (non-blocking)
+  // Continuously listen for messages (blocking with timeout)
-  std::string push_message;
+  // Use longer timeout if in error state
-  esp_err_t err = udp_client_.receive_response(push_message, 0);  // 0 = non-blocking
+  int listen_timeout = (consecutive_failures_ >= MAX_FAILURES_BEFORE_ERROR)
+    ? ERROR_POLL_INTERVAL_MS
+    : POLL_INTERVAL_MS;
+
+  ESP_LOGI(TAG, "Listening for messages (timeout: %dms)", listen_timeout);
+  std::string message;
+  esp_err_t err = udp_client_.receive_response(message, listen_timeout);
+
+  if (err == ESP_OK && !message.empty()) {
+    // Received a message (either push update or status response)
+    ESP_LOGI(TAG, "Received message: %s", message.c_str());
 
-  if (err == ESP_OK && !push_message.empty()) {
-    // Received push update from remote
-    ESP_LOGI(TAG, "Received push update: %s", push_message.c_str());
     StatusUpdateEventData event_data {
       .state = StatusUpdateEventData::VoiceState::UNKNOWN
     };
 
-    if (push_message == MUTED_RESPONSE) {
+    if (message == MUTED_RESPONSE) {
       event_data.state = StatusUpdateEventData::VoiceState::MUTED;
-    } else if (push_message == UNMUTED_RESPONSE) {
+    } else if (message == UNMUTED_RESPONSE) {
       event_data.state = StatusUpdateEventData::VoiceState::UNMUTED;
     }
 
-    // Reset failure counter on successful push update
+    // Reset failure counter on successful message
     if (event_data.state != StatusUpdateEventData::VoiceState::UNKNOWN) {
       consecutive_failures_ = 0;
-    }
 
+      ESP_LOGI(TAG, "Invoking status update callback with state: %d", event_data.state);
       if (on_status_update_callback_) {
         on_status_update_callback_(event_data, status_event_user_data_);
       }
-
+    } else {
-    // Got push update, skip polling
+      ESP_LOGW(TAG, "Received unknown message: %s", message.c_str());
-    if (event_data.state != StatusUpdateEventData::VoiceState::UNKNOWN) {
-      return;
     }
-  }
+  } else if (err == ESP_ERR_TIMEOUT) {
-
+    // Timeout - send STATUS command to verify connection is still alive
-  // Send STATUS command for polling
+    ESP_LOGI(TAG, "Listen timeout, sending STATUS command to verify connection");
-  ESP_LOGI(TAG, "Sending STATUS command for polling");
     err = udp_client_.send_command(STATUS_COMMAND);
+
     if (err != ESP_OK) {
       consecutive_failures_++;
-    ESP_LOGW(TAG, "Failed to send STATUS command for polling. Consecutive failures: %d",
+      ESP_LOGW(TAG, "Failed to send STATUS command. Consecutive failures: %d",
         consecutive_failures_);
 
       if (consecutive_failures_ >= MAX_FAILURES_BEFORE_ERROR) {
@@ -209,41 +204,14 @@ void IotDisBridge::poll_status_() {
           );
         }
       }
-    return;
-  }
-
-  // Wait for response to STATUS command
-  ESP_LOGI(TAG, "Waiting for response to STATUS command (timeout: %dms)", RESPONSE_TIMEOUT_MS);
-  std::string response;
-  err = udp_client_.receive_response(response, RESPONSE_TIMEOUT_MS);
-  ESP_LOGI(TAG, "Received response from STATUS command: err=%d", err);
-
-  if (err == ESP_OK) {
-    // Success - reset failure counter
-    consecutive_failures_ = 0;
-    ESP_LOGI(TAG, "STATUS response: %s", response.c_str());
-
-    StatusUpdateEventData event_data {
-      .state = StatusUpdateEventData::VoiceState::UNKNOWN
-    };
-    if (response == MUTED_RESPONSE) {
-      event_data.state = StatusUpdateEventData::VoiceState::MUTED;
-    } else if (response == UNMUTED_RESPONSE) {
-      event_data.state = StatusUpdateEventData::VoiceState::UNMUTED;
-    }
-
-    ESP_LOGI(TAG, "Invoking status update callback with state: %d", event_data.state);
-    if (on_status_update_callback_) {
-      on_status_update_callback_(event_data, status_event_user_data_);
-      ESP_LOGI(TAG, "Status update callback returned");
     }
+    // The response to STATUS command will be received in the next iteration
   } else {
-    // Timeout or error
+    // Error receiving
     consecutive_failures_++;
-    ESP_LOGW(TAG, "No response to STATUS (failures: %d, error: %d)", consecutive_failures_, err);
+    ESP_LOGW(TAG, "Error receiving message: %d (failures: %d)", err, consecutive_failures_);
 
     if (consecutive_failures_ >= MAX_FAILURES_BEFORE_ERROR) {
-      ESP_LOGW(TAG, "Max failures reached, sending ERROR state");
       if (on_status_update_callback_) {
         on_status_update_callback_(
           StatusUpdateEventData { .state = StatusUpdateEventData::VoiceState::ERROR },
@@ -252,6 +220,4 @@ void IotDisBridge::poll_status_() {
       }
     }
   }
-
-  ESP_LOGI(TAG, "poll_status_ complete");
 }

main/ui/apps/iotdis/ui/main.cpp

@@ -1,10 +1,11 @@
 #include "ui/apps/iotdis/ui/main.h"
 #include "ui/apps/iotdis/app.h"
 #include "ui/interaction_handler.h"
+#include "ui/widgets/button.h"
 #include "esp_log.h"
 #include "esp_lvgl_port.h"
 
-#define LVGL_LOCK_TIMEOUT 2000  // milliseconds
+#define LVGL_LOCK_TIMEOUT 4000  // milliseconds
 static const char* TAG = "MainUI";
 
 MainUI::~MainUI() {
@@ -82,11 +83,8 @@ void MainUI::create_ui_(lv_obj_t* parent) {
   lv_label_set_text(status_text_label_, "Unknown Status");
 
   // Mute button
-  mute_button_ = lv_btn_create(center_container);
+  mute_button_ = button_create(center_container);
   lv_obj_set_size(mute_button_, 200, 60);
-  lv_obj_set_style_bg_color(mute_button_, lv_color_white(), 0);
-  lv_obj_set_style_border_color(mute_button_, lv_color_black(), 0);
-  lv_obj_set_style_border_width(mute_button_, 2, 0);
   lv_obj_t* mute_label = lv_label_create(mute_button_);
   lv_label_set_text(mute_label, "MUTE");
   lv_obj_center(mute_label);
@@ -107,11 +105,8 @@ void MainUI::create_ui_(lv_obj_t* parent) {
   lv_obj_set_style_text_color(config_prompt_, lv_color_black(), 0);
 
   // Settings button (right side)
-  settings_button_ = lv_btn_create(bottom_container);
+  settings_button_ = button_create(bottom_container);
   lv_obj_set_size(settings_button_, 60, 60);
-  lv_obj_set_style_bg_color(settings_button_, lv_color_white(), 0);
-  lv_obj_set_style_border_color(settings_button_, lv_color_black(), 0);
-  lv_obj_set_style_border_width(settings_button_, 2, 0);
 
   lv_obj_t* settings_icon = lv_label_create(settings_button_);
   lv_label_set_text(settings_icon, LV_SYMBOL_SETTINGS);

main/ui/widgets/button.cpp

@@ -0,0 +1,12 @@
+#include "ui/widgets/button.h"
+
+lv_obj_t* button_create(lv_obj_t* parent) {
+  lv_obj_t* button = lv_button_create(parent);
+  lv_obj_set_style_bg_color(button, lv_color_white(), 0);
+  lv_obj_set_style_border_color(button, lv_color_black(), 0);
+  lv_obj_set_style_border_width(button, 2, 0);
+  lv_anim_delete(button, nullptr);
+
+  return button;
+}
+

main/ui/widgets/button.h

@@ -0,0 +1,4 @@
+#pragma once
+#include "lvgl.h"
+
+lv_obj_t* button_create(lv_obj_t* parent);

main/ui/widgets/widgets.h

@@ -0,0 +1,4 @@
+#pragma once
+
+#include "main/ui/widgets/button.h"
+#include "main/ui/widgets/textarea.h"