Support multi language at compile time, user select via Unit settings.

main/config.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
@@ -14,8 +14,6 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
-/*#define MY_LANGUAGE fr-FR // define your language*/
-
 const PROGMEM char* m2mqtt_version = "2023.8.0";
 
 //Define global variables for files
@@ -111,3 +109,41 @@ const PROGMEM uint32_t HP_MAX_RETRIES = 10; // Double the interval between retri
 bool useFahrenheit = false;
 // support heat mode settings, some model do not support heat mode
 bool supportHeatMode = true;
+
+// Multi language support, all store in the flash, just change in the Unit settings
+byte system_language_index = 0; // default language index 0:en
+// #define MITSU2MQTT_EN_ONLY 1   // un comment to enable English only for debug 
+#include "language_util.h" // Multi languages support
+
+// Languages supported. Note: the order is important and must match locale_translations.h
+#if defined(MITSU2MQTT_TEST) || defined(MITSU2MQTT_EN_ONLY)
+// in Debug mode use one language (en) to save flash memory needed for the tests
+const char *const languages[] = {MITSU2MQTT_LOCALE_EN};
+const char *const language_names[] = {"English"};
+#elif defined(MITSU2MQTT_VI_ONLY)
+const char *const languages[] = {MITSU2MQTT_LOCALE_VI};
+const char *const language_names[] = {"Tiếng Việt"};
+#else
+const char *const languages[] = {
+    MITSU2MQTT_LOCALE_EN,
+    MITSU2MQTT_LOCALE_VI,
+    // MITSU2MQTT_LOCALE_DE,
+    // MITSU2MQTT_LOCALE_ES,
+    // MITSU2MQTT_LOCALE_FR,
+    // MITSU2MQTT_LOCALE_IT,
+    // MITSU2MQTT_LOCALE_JA,
+    // MITSU2MQTT_LOCALE_ZH
+};
+const char *const language_names[] = {
+    "English",
+    "Tiếng Việt",
+    // "Deutsch",
+    // "Español",
+    // "Français",
+    // "Italiano",
+    // "日本語",
+    // "中文"
+};
+#endif
+
+static constexpr uint8_t NUM_LANGUAGES = sizeof(languages) / sizeof(const char *);

main/html_common.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either

main/html_init.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either

main/html_menu.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either

main/html_metrics.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either

main/html_pages.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
@@ -290,6 +290,13 @@ const char html_page_unit[] PROGMEM =
     "<fieldset>"
         "<legend><b>&nbsp; _TXT_UNIT_TITLE_ &nbsp;</b></legend>"
         "<form method='post'>"
+            "<p>"
+                "<b>_TXT_UNIT_LANGUAGE_</b>"
+                    "<br/>"
+                    "<select id='language' name='language' onchange=\"sendLanguage(this)\">"
+                        "_LANGUAGE_OPTIONS_"
+                    "</select>"
+                "</p>"
             "<p>"
                 "<b>_TXT_UNIT_TEMP_</b>"
                 "<select name='tu'>"

main/javascript_common.h

@@ -1,6 +1,6 @@
 /*
   mitsubishi2mqtt - Mitsubishi Heat Pump to MQTT control for Home Assistant.
-  Copyright (c) 2022 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
+  Copyright (c) 2023 gysmo38, dzungpv, shampeon, endeavour, jascdk, chrdavis, alekslyse.  All right reserved.
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
@@ -16,7 +16,7 @@
 
 const char count_down_script[] PROGMEM = 
 "<script>"
-    "var count = 10;"
+    "var count = 30;"
     "(function countDown() {"
         "document.getElementById('count').innerHTML = count + 's';"
         "setTimeout(function() {"
@@ -29,4 +29,115 @@ const char count_down_script[] PROGMEM =
         "}, 1000);"
     "})();"
 "</script>"
-;
+;
+const char count_down_script_init[] PROGMEM = 
+"<script>"
+    "var count = 30;"
+    "(function countDown() {"
+        "document.getElementById('count').innerHTML = count + 's';"
+        "setTimeout(function() {"
+            "if(count > 0) {"
+                "count --;"
+                "return countDown();"
+            "} else {"
+                "window.location.href = 'http://_HOST_NAME_/status';"
+            "}"
+        "}, 1000);"
+    "})();"
+"</script>"
+;
+
+
+const char fw_check_script_events[] PROGMEM = 
+"<script>"
+"if (!!window.EventSource) {"
+ "var source = new EventSource('/events');"
+ "source.addEventListener('open', function(e) {"
+  "console.log('Events Connected');"
+ "}, false);"
+ "source.addEventListener('error', function(e) {"
+  "if (e.target.readyState != EventSource.OPEN) {"
+    "console.log('Events Disconnected');"
+  "}"
+ "}, false);"
+ "source.addEventListener('message', function(e) {"
+  "console.log('message', e.data);"
+ "}, false);"
+ "source.addEventListener('fw_check_status', function(e) {"
+  "console.log('fw_check_status', e.data);"
+  "document.getElementById('status').innerHTML = e.data;"
+ "}, false);"
+ "source.addEventListener('wifiOptions', function(e) {"
+  "console.log('wifiOptions', e.data);"
+  "document.getElementById('network').innerHTML = e.data;"
+ "}, false);"
+ "source.addEventListener('fw_check_reboot', function(e) {"
+  "console.log('fw_check_status', e.data);"
+  "document.getElementById('status').innerHTML = e.data;"
+  "var count = 20;"
+  "(function countDown() {"
+        "document.getElementById('count').innerHTML = count + 's';"
+        "setTimeout(function() {"
+            "if(count > 0) {"
+                "count --;"
+                "return countDown();"
+            "} else {"
+                "window.location.href = '/status';"
+            "}"
+        "}, 1000);"
+    "})();"
+ "}, false);"
+"}"
+"</script>";
+
+const char unit_script_ws[] PROGMEM = 
+"<script>"
+    "var websocket;"
+    "function initWebSocket() {"
+      "console.log('Trying to open a WebSocket connection...');"
+      "var gateway = 'ws://${window.location.hostname}/ws';"
+      "websocket = new WebSocket(\"ws://\" + location.host + \"/ws\");"
+      "websocket.onopen    = onOpen;"
+      "websocket.onclose   = onClose;"
+      "websocket.onmessage = onMessage;"
+    "}"
+
+    "function onOpen(event) {"
+      "console.log('Connection opened');"
+    "}"
+
+    "function onClose(event) {"
+      "console.log('Connection closed');"
+      "setTimeout(initWebSocket, 4000);"
+    "}"
+
+    "function onMessage(event) {"
+      "console.log('onMessage: ' + event.data);"
+      "if (event.data == 'REFRESH'){"
+        "location.reload();"
+      "}"
+    "}"
+    "window.addEventListener('load', onLoad);"
+
+    "function onLoad(event) {"
+      "initWebSocket();"
+    "}"
+
+    "function sendLanguage(obj){"
+      "var lang_index = document.getElementById('language').value;"
+      "console.log('send language: ' + lang_index);"
+      "websocket.send('language;'+lang_index);"
+    "}"
+
+    "function matchPassword() {"  
+      "var pw1 = document.getElementById('lpw').value;"  
+      "var pw2 = document.getElementById('lpwc').value;"  
+      "if(pw1 != pw2)"  
+      "{"   
+        "document.getElementById('message_not_match').innerHTML = '_TXT_UNIT_PASSWORD_NOT_MATCH_';"
+        "return false;" 
+      "}"
+      "document.getElementById('message_not_match').innerHTML = '';"
+      "return true;"
+    "}"  
+"</script>";