feat(mosq): Update brokerless example to work with esp-peer

Author: david-cermak

components/mosquitto/examples/serverless_mqtt/Add-default-event-to-http-client-handler.patch

@@ -0,0 +1,24 @@
+From a2d51a026449cf1ba2cb53996ce1cdf1f6f078d2 Mon Sep 17 00:00:00 2001
+From: David Cermak <cermak@espressif.com>
+Date: Wed, 9 Jul 2025 12:40:36 +0200
+Subject: [PATCH] fix(htt): Add default event to http-client handler
+
+---
+ components/esp_webrtc/impl/apprtc_signal/https_client.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/components/esp_webrtc/impl/apprtc_signal/https_client.c b/components/esp_webrtc/impl/apprtc_signal/https_client.c
+index b7ee6fc..aca4a4e 100644
+--- a/components/esp_webrtc/impl/apprtc_signal/https_client.c
++++ b/components/esp_webrtc/impl/apprtc_signal/https_client.c
+@@ -48,6 +48,8 @@ esp_err_t _http_event_handler(esp_http_client_event_t *evt)
+ {
+     http_info_t *info = evt->user_data;
+     switch (evt->event_id) {
++        default:
++            break;
+         case HTTP_EVENT_ERROR:
+             ESP_LOGD(TAG, "HTTP_EVENT_ERROR");
+             break;
+--
+2.25.1

components/mosquitto/examples/serverless_mqtt/CMakeLists.txt

@@ -3,4 +3,16 @@
 cmake_minimum_required(VERSION 3.16)
 
 include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+
+execute_process(COMMAND ${CMAKE_BINARY_DIR}/../esp_peer_setup.sh
+                ${CMAKE_BINARY_DIR}
+                WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+                RESULT_VARIABLE script_result)
+
+if(script_result)
+    message(FATAL_ERROR "Script esp_peer_setup.sh failed with exit code ${script_result}")
+endif()
+
+list(APPEND EXTRA_COMPONENT_DIRS "${CMAKE_BINARY_DIR}/esp-peer/components/")
+
 project(serverless_mqtt)

components/mosquitto/examples/serverless_mqtt/Remove-deprecated-freeRTOS-header.patch

@@ -0,0 +1,24 @@
+From 06b15a30e860daef303b6c6541a2cae858c17e6c Mon Sep 17 00:00:00 2001
+From: David Cermak <cermak@espressif.com>
+Date: Thu, 10 Jul 2025 11:09:57 +0200
+Subject: [PATCH] fix(media_lib): Remove deprecated freeRTOS header
+
+---
+ components/media_lib_sal/port/media_lib_os_freertos.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/components/media_lib_sal/port/media_lib_os_freertos.c b/components/media_lib_sal/port/media_lib_os_freertos.c
+index d248d59..7b588ca 100644
+--- a/components/media_lib_sal/port/media_lib_os_freertos.c
++++ b/components/media_lib_sal/port/media_lib_os_freertos.c
+@@ -40,7 +40,7 @@
+ #include "esp_idf_version.h"
+
+ #if CONFIG_FREERTOS_ENABLE_TASK_SNAPSHOT
+-#include "freertos/task_snapshot.h"
++#include "esp_private/freertos_debug.h"
+ #endif
+
+ #ifdef __XTENSA__
+--
+2.43.0

components/mosquitto/examples/serverless_mqtt/esp_peer_setup.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -e
+echo "bin_dir: $1"
+
+bin_dir="$1"
+THIS_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+ESP_PEER_VERSION="9512eef258a45aafcaaa309b1a67505c8b500363"
+
+ESP_PEER_URL="https://github.com/espressif/esp-webrtc-solution/archive/${ESP_PEER_VERSION}.zip"
+ESP_PEER_DIR="${bin_dir}/esp-peer"
+ZIP_PATH="${bin_dir}/esp-peer.zip"
+EXTRACTED_DIR="${ESP_PEER_DIR}/esp-webrtc-solution-${ESP_PEER_VERSION}"
+COMPONENTS_SRC="${EXTRACTED_DIR}/components"
+COMPONENTS_DST="${ESP_PEER_DIR}/components"
+PATCH_FILE_1="${THIS_DIR}/Add-default-event-to-http-client-handler.patch"
+PATCH_FILE_2="${THIS_DIR}/Remove-deprecated-freeRTOS-header.patch"
+
+# Download if not exists
+if [ ! -d "$EXTRACTED_DIR" ]; then
+    echo "Downloading esp-peer ${ESP_PEER_VERSION}..."
+    wget -O "$ZIP_PATH" "$ESP_PEER_URL"
+    unzip -o "$ZIP_PATH" -d "$ESP_PEER_DIR"
+    patch -p1 -d "$EXTRACTED_DIR" < "$PATCH_FILE_1"
+    patch -p1 -d "$EXTRACTED_DIR" < "$PATCH_FILE_2"
+    mv ${EXTRACTED_DIR}/components ${ESP_PEER_DIR}
+    mv ${ESP_PEER_DIR}/components/esp_webrtc/impl/peer_default ${ESP_PEER_DIR}/components
+fi

components/mosquitto/examples/serverless_mqtt/main/CMakeLists.txt

@@ -1,4 +1,5 @@
 idf_component_register(SRCS "serverless_mqtt.c"
                             "wifi_connect.c"
+                            "webrtc.c"
                     INCLUDE_DIRS "."
-                    REQUIRES libjuice nvs_flash mqtt json esp_wifi)
+                    REQUIRES libjuice nvs_flash mqtt json esp_wifi media_lib_sal esp_webrtc peer_default)