Fixed bug where the screen wouldn't update when a button is pressed

Makefile

@@ -72,7 +72,7 @@ CXXFLAGS	:= $(CFLAGS) -std=c++17 -O2 -Wno-volatile
 ASFLAGS	:=	-g $(ARCH)
 LDFLAGS	=	-specs=$(DEVKITPRO)/libnx/switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
 
-LIBS	:= -lnx
+LIBS	:= -lnx -lcurl
 
 #---------------------------------------------------------------------------------
 # list of directories containing libraries, this must be the top level containing

include/constants.hpp

@@ -0,0 +1,11 @@
+#pragma once
+
+#define CALCULATOR_NX_PATH "/switch/Calculator_NX"
+
+#define CONFIG_PATH "/config/Calculator_NX"
+#define DOWNLOAD_PATH "/config/Calculator_NX/download"
+
+#define TAGS_API_LINK "https://api.github.com/repos/EmreTech/Calculator_NX/tags"
+#define LATEST_RELEASE_API_LINK "https://api.github.com/repos/EmreTech/Calculator_NX/releases/latest"
+
+#define BASE_DOWNLOAD_URL "https://github.com/EmreTech/Calculator_NX/releases/download/{}/Calculator_NX.nro"

include/download.hpp

@@ -0,0 +1,15 @@
+#pragma once
+
+#include <curl/curl.h>
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <cstdio>
+
+#define API_AGENT "EmreTech"
+
+CURLcode downloadFile(const std::string &url, const std::string &filename);
+
+std::string getLatestTag(bool nightly);
+std::string getLatestDownload(bool nightly);

resources/i18n/en-US/text.json

@@ -1,5 +1,6 @@
 {
     "title": "Calculator_NX Rewrite",
+    "update_title": "Calculator_NX Updater",
 
     "tabs": {
         "calculator": "Calculator",
@@ -14,5 +15,11 @@
     "about": {
         "appname": "Calculator_NX",
         "developer": "Developed by EmreTech"
+    },
+
+    "updater": {
+        "starting_update": "Starting update...",
+        "downloading_update": "Downloading the latest version...",
+        "restarting_to_finish": "About to restart to finish the update."
     }
 }

resources/xml/activity/updater.xml

@@ -0,0 +1,7 @@
+<brls:AppletFrame
+    title="@i18n/text/update_title"
+    icon="@res/icon/Calculator_NX_Icon_Alt.jpg">
+
+    <UpdaterTab />
+
+</brls:AppletFrame>

resources/xml/tabs/updater.xml

@@ -0,0 +1,14 @@
+<brls:Box
+    width="auto"
+    height="auto"
+    alignItems="center"
+    justifyContent="center">
+
+    <brls:Label
+        width="auto"
+        height="auto"
+        horizontalAlign="center"
+        fontSize="35"
+        text="@i18n/text/updater/starting_update"/>
+
+</brls:Box>

source/calculatorTab.cpp

@@ -92,4 +92,5 @@ void CalculatorTab::updateScreenBufferFromExpStr()
     screenBuffer = expressionStr;
     if (expressionStr.length() >= 30)
         screenBuffer = expressionStr.substr(29);
+    updateScreen();
 }

source/download.cpp

@@ -0,0 +1,80 @@
+#include <download.hpp>
+
+#include <nlohmann/json.hpp>
+#include <fmt/core.h>
+
+#include <constants.hpp>
+
+size_t write_data(void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+    size_t written = fwrite(ptr, size, nmemb, stream);
+    return written;
+}
+CURLcode downloadFile(const std::string &url, const std::string &filename)
+{
+    CURL *curl;
+    FILE *fp;
+    CURLcode res;
+
+    curl = curl_easy_init();
+    if (curl)
+    {
+        fp = fopen(filename.c_str(), "wb");
+
+        curl_easy_setopt(curl, CURLOPT_URL, url.c_str());
+
+        curl_easy_setopt(curl, CURLOPT_USERAGENT, API_AGENT);
+        curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
+        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
+        curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
+
+        curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, write_data);
+        curl_easy_setopt(curl, CURLOPT_WRITEDATA, fp);
+
+        res = curl_easy_perform(curl);
+        curl_easy_cleanup(curl);
+
+        fclose(fp);
+    }
+
+    return res;
+}
+
+std::string getLatestTag(bool nightly)
+{
+    downloadFile(
+        (nightly ? TAGS_API_LINK : LATEST_RELEASE_API_LINK), DOWNLOAD_PATH + std::string("/github_api.json")
+    );
+
+    nlohmann::json api_data;
+    std::ifstream api_file(DOWNLOAD_PATH + std::string("/github_api.json"));
+
+    api_file >> api_data;
+    api_file.close();
+
+    if (nightly)
+        return api_data[0]["name"].get<std::string>();
+
+    return api_data["tag_name"];
+}
+
+std::string getLatestDownload(bool nightly)
+{
+    if (nightly)
+    {
+        std::string latestTag = getLatestTag(nightly);
+        return fmt::format(BASE_DOWNLOAD_URL, latestTag);
+    }
+
+    downloadFile(
+        LATEST_RELEASE_API_LINK, DOWNLOAD_PATH + std::string("/github_api_two.json")
+    );
+
+    nlohmann::json api_data;
+    std::ifstream api_file(DOWNLOAD_PATH + std::string("/github_api_two.json"));
+
+    api_file >> api_data;
+    api_file.close();
+
+    return api_data["assets"][12/*"browser_download_url"*/];
+}

source/main.cpp

@@ -1,5 +1,4 @@
 #include <borealis.hpp>
-#include <nlohmann/json.hpp>
 
 #include <calculatorTab.hpp>
 #include <aboutTab.hpp>