1 files changed, 144 insertions, 0 deletions
diff --git a/app/file_operation.h b/app/file_operation.h
new file mode 100644
index 0000000..618d26b
--- /dev/null
+++ b/app/file_operation.h
@@ -0,0 +1,144 @@
+#ifndef FILE_OPERATION_H
+#define FILE_OPERATION_H
+#include <QObject>
+#include <QString>
+#include <QFile>
+#include <QFile>
+#include <QJsonObject>
+#include <QJsonDocument>
+
+/******************************************************
+ * Write access token of mapbox in /etc/mapAccessToken
+ ******************************************************/
+#define MAP_ACCESS_TOKEN_FILEPATH "/etc/mapAccessToken"
+
+class File_Operation: public QObject{
+
+    Q_OBJECT
+public:
+    Q_INVOKABLE QString getMapAccessToken() {
+    #if 0
+        char buf[512];
+        QString mapAccessToken = "";
+
+        FILE* filep = fopen(qPrintable(MAP_ACCESS_TOKEN_FILEPATH), "r");
+        if (!filep) {
+            fprintf(stderr,"Failed to open mapAccessToken file \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            return mapAccessToken;
+        }
+        if (!fgets(buf, 512, filep)) {
+            fprintf(stderr,"Failed to read mapAccessToken from mapAccessToken file \"%s\"", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            fclose(filep);
+            return mapAccessToken;
+        }
+        if (strlen(buf) > 0 && buf[strlen(buf)-1] == '\n') {
+            buf[strlen(buf)-1] = '\0';
+        }
+        mapAccessToken = QString(buf);
+
+        fclose(filep);
+
+        return mapAccessToken;
+    #else
+    	QString mapAccessToken = "";
+    	QFile file(MAP_ACCESS_TOKEN_FILEPATH);
+    	if (!file.open(QIODevice::ReadOnly)){
+            fprintf(stderr,"Failed to open mapAccessToken file \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            return mapAccessToken;
+        }
+        QByteArray data = file.readAll();
+        QJsonDocument jsonDoc(QJsonDocument::fromJson(data));
+    	QJsonObject jsonObj(jsonDoc.object());
+    	if(jsonObj.contains("mapAccessToken")){
+    		mapAccessToken = jsonObj["mapAccessToken"].toString();
+    	}else{
+    		fprintf(stderr,"Failed to find mapAccessToken data \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+    	}
+    	
+    	file.close();
+    	return mapAccessToken;
+    #endif
+    }
+    
+    Q_INVOKABLE double getSpeed() {
+    	double speed = 60;	// km/h
+    	QFile file(MAP_ACCESS_TOKEN_FILEPATH);
+    	if (!file.open(QIODevice::ReadOnly)){
+            fprintf(stderr,"Failed to open mapAccessToken file \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            return speed;
+        }
+        QByteArray data = file.readAll();
+        QJsonDocument jsonDoc(QJsonDocument::fromJson(data));
+    	QJsonObject jsonObj(jsonDoc.object());
+    	if(jsonObj.contains("speed")){
+    		speed = jsonObj["speed"].toDouble();
+    	}else{
+    		fprintf(stderr,"Failed to find speed data \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+    	}
+    	
+    	file.close();
+    	return speed;
+    }
+    
+    Q_INVOKABLE int getInterval() {
+    	int interval = 15;	// ms
+    	QFile file(MAP_ACCESS_TOKEN_FILEPATH);
+    	if (!file.open(QIODevice::ReadOnly)){
+            fprintf(stderr,"Failed to open mapAccessToken file \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            return interval;
+        }
+        QByteArray data = file.readAll();
+        QJsonDocument jsonDoc(QJsonDocument::fromJson(data));
+    	QJsonObject jsonObj(jsonDoc.object());
+    	if(jsonObj.contains("interval")){
+    		interval = (int)jsonObj["interval"].toDouble();
+    	}else{
+    		fprintf(stderr,"Failed to find interval data \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+    	}
+    	
+    	file.close();
+    	return interval;
+    }
+    
+    Q_INVOKABLE double getLatitude() {
+    	double latitude = 36.136261;
+    	QFile file(MAP_ACCESS_TOKEN_FILEPATH);
+    	if (!file.open(QIODevice::ReadOnly)){
+            fprintf(stderr,"Failed to open mapAccessToken file \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            return latitude;
+        }
+        QByteArray data = file.readAll();
+        QJsonDocument jsonDoc(QJsonDocument::fromJson(data));
+    	QJsonObject jsonObj(jsonDoc.object());
+    	if(jsonObj.contains("latitude")){
+    		latitude = jsonObj["latitude"].toDouble();
+    	}else{
+    		fprintf(stderr,"Failed to find latitude data \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+    	}
+    	
+    	file.close();
+    	return latitude;
+    }
+    
+     Q_INVOKABLE double getLongitude() {
+    	double longitute = -115.151254;
+    	QFile file(MAP_ACCESS_TOKEN_FILEPATH);
+    	if (!file.open(QIODevice::ReadOnly)){
+            fprintf(stderr,"Failed to open mapAccessToken file \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+            return longitute;
+        }
+        QByteArray data = file.readAll();
+        QJsonDocument jsonDoc(QJsonDocument::fromJson(data));
+    	QJsonObject jsonObj(jsonDoc.object());
+    	if(jsonObj.contains("longitute")){
+    		longitute = jsonObj["longitute"].toDouble();
+    	}else{
+    		fprintf(stderr,"Failed to find longitute data \"%s\": %m", qPrintable(MAP_ACCESS_TOKEN_FILEPATH));
+    	}
+    	
+    	file.close();
+    	return longitute;
+    }
+};
+
+#endif // FILE_OPERATION_H