add update version check

src/gui/mainbar/setup_tile/update/update.cpp

@@ -26,6 +26,8 @@
 #include <HTTPUpdate.h>
 
 #include "update.h"
+#include "update_check_version.h"
+
 #include "gui/mainbar/mainbar.h"
 #include "gui/statusbar.h"
 #include "hardware/display.h"
@@ -97,7 +99,12 @@ void update_tile_setup( lv_obj_t *tile, lv_style_t *style, lv_coord_t hres, lv_c
     lv_obj_add_style( update_status_label, LV_OBJ_PART_MAIN, style );
     lv_label_set_text( update_status_label, "" );
     lv_obj_align( update_status_label, update_btn, LV_ALIGN_OUT_BOTTOM_MID, 0, 5 );
-    
+
+    // regster callback
+    WiFi.onEvent( [](WiFiEvent_t event, WiFiEventInfo_t info) {
+        update_check_version();
+    }, WiFiEvent_t::SYSTEM_EVENT_STA_GOT_IP );
+
     update_event_handle = xEventGroupCreate();
     xEventGroupClearBits( update_event_handle, UPDATE_REQUEST );
 
@@ -131,9 +138,26 @@ static void update_event_handler(lv_obj_t * obj, lv_event_t event) {
     }
 }
 
+void update_check_version( void ) {
+    if ( xEventGroupGetBits( update_event_handle ) & UPDATE_GET_VERSION_REQUEST ) {
+        return;
+    }
+    else {
+        xEventGroupSetBits( update_event_handle, UPDATE_GET_VERSION_REQUEST );
+        vTaskResume( _update_Task );    
+    }
+}
+
 void update_Task( void * pvParameters ) {
     while( true ) {
         vTaskDelay( 500 );
+        if ( xEventGroupGetBits( update_event_handle) & UPDATE_GET_VERSION_REQUEST ) {
+            if ( update_check_new_version() > atol( __FIRMWARE__ ) ) {
+                lv_label_set_text( update_status_label, "new version available" );
+                lv_obj_align( update_status_label, update_btn, LV_ALIGN_OUT_BOTTOM_MID, 0, 15 );  
+            }
+            xEventGroupClearBits( update_event_handle, UPDATE_GET_VERSION_REQUEST );
+        }
         if ( xEventGroupGetBits( update_event_handle) & UPDATE_REQUEST ) {
             if( WiFi.status() == WL_CONNECTED ) {
 

src/gui/mainbar/setup_tile/update/update.h

@@ -24,11 +24,13 @@
 
     #include <TTGO.h>
 
-    #define UPDATE_REQUEST    _BV(0)
+    #define UPDATE_REQUEST              _BV(0)
+    #define UPDATE_GET_VERSION_REQUEST  _BV(1)
 
     #define FIRMWARE_LOCATION   "https://github.com/sharandac/My-TTGO-Watch/blob/master/ttgo-t-watch2020_v1.ino.bin"
 
     void update_tile_setup( lv_obj_t *tile, lv_style_t *style, lv_coord_t hres, lv_coord_t vres );
+    void update_check_version( void );
     void update_update_firmware( void );
 
 #endif // _UPDATE_H

src/gui/mainbar/setup_tile/update/update_check_version.cpp

@@ -0,0 +1,101 @@
+/****************************************************************************
+ *   July 28 00:23:05 2020
+ *   Copyright  2020  Dirk Brosswick
+ *   Email: dirk.brosswick@googlemail.com
+ ****************************************************************************/
+ 
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include "config.h"
+#include <Arduino.h>
+#include <WiFi.h>
+#include "ArduinoJson.h"
+#include "HTTPClient.h"
+
+#include "update_check_version.h"
+
+uint64_t update_check_new_version( void ) {
+    
+    WiFiClient check_version_client;
+    uint64_t retval = -1;
+
+	if ( !check_version_client.connect( FIRMWARE_HOST, FIRMWARE_HOST_PORT ) ) {
+        Serial.printf("connection failed\r\n");
+        return( -1 );
+	}
+
+	check_version_client.printf(    "GET /ttgo-t-watch2020_v1.version.json HTTP/1.1\r\n"
+                                    "Host: %s\r\n"
+                                    "Connection: close\r\n"
+                                    "Pragma: no-cache\r\n"
+                                    "Cache-Control: no-cache\r\n"
+                                    "User-Agent: ESP32\r\n"
+                                    "Accept: text/html,application/json\r\n\r\n", FIRMWARE_HOST );
+
+	uint64_t startMillis = millis();
+	while ( check_version_client.available() == 0 ) {
+		if ( millis() - startMillis > 5000 ) {
+            Serial.printf("connection timeout\r\n");
+			check_version_client.stop();
+			return( retval );
+		}
+	}
+
+    char *json = (char *)ps_malloc( 100 );
+    if ( json == NULL ) {
+        Serial.printf("memory alloc failed\r\n");
+        check_version_client.stop();
+        return( retval );
+    }
+    char *ptr = json;
+
+    bool data_begin = false;
+    while( check_version_client.available() ) {
+        if ( data_begin ) {
+            ptr[ check_version_client.readBytes( ptr, 100 - 1 ) ] = '\0';
+        }
+		else if ( check_version_client.read() == '{' ) {
+            data_begin = true;
+            *ptr = '{';
+            ptr++;
+        }
+	}
+
+    check_version_client.stop();
+
+    if ( data_begin == false ) {
+        free( json );
+        return( retval );
+    }
+    check_version_client.stop();
+
+    DynamicJsonDocument doc(200);
+
+    DeserializationError error = deserializeJson( doc, json);
+    if (error) {
+        Serial.print(F("deserializeJson() failed: "));
+        Serial.println(error.c_str());
+        doc.clear();
+        free( json );
+        return( retval );
+    }
+
+    retval = atoll( doc["version"] );
+
+    doc.clear();
+    free( json );
+    return( retval );
+}

src/gui/mainbar/setup_tile/update/update_check_version.h

@@ -0,0 +1,32 @@
+/****************************************************************************
+ *   July 28 00:23:05 2020
+ *   Copyright  2020  Dirk Brosswick
+ *   Email: dirk.brosswick@googlemail.com
+ ****************************************************************************/
+ 
+/*
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#ifndef _UPDATE_CHECK_VERSION_H
+    #define _UPDATE_CHECK_VERSION_H
+
+    #include <TTGO.h>
+
+    #define FIRMWARE_HOST       "www.neo-guerillaz.de"
+    #define FIRMWARE_HOST_PORT  80
+
+    uint64_t update_check_new_version();
+
+#endif // _UPDATE_CHECK_VERSION_H