// Documentation : http://randochartreuse.free.fr/mobac2.x/documentation/#bsh
// Version : 05/08/2024

// Nom de la carte affiché dans MOBAC
	name = "Monde, cartes marines Garmin-Navionics-2m-Sonar-Z(18)";

// Nom du serveur
	String MyServer = ".navionics.com"; 

// MyUserAgent correspond à celui créé notamment  avec la clé IGN
// Par défaut, on trouve souvent MyUserAgent = "Mozilla/5.0 Gecko/20100101 Firefox/49.0";
	String MyUserAgent = "Mozilla/5.0 Gecko/20100101 Firefox/49.0";

// MyReferer peut être demandé
	String MyReferer = "https://maps.garmin.com/";
	
// MyOrigin est demandé
	String MyOrigin = "https://maps.garmin.com";
	
// Initialisation du Token
	String MyToken = "";
	long MyVTimeStamp = 0;
	long MyTimmer = 240000; // Temps (ms) de pause avant recherche d’un nouveau Token. 4 min = 240000 ms

// MyFolder au format "dossier" ou "dossier1/dossier2/etc"
	String MyFolder = "tile";
	
//******************************************************************************
// LAYERS parameter: config_a_b_c
//		a = 1 for depth in meters, 2 for depth in feet, 3 for fathoms
//		b = 10.00: for 10.00 m safety depth (beginning of blue coloring) (unit equal to that set by a)
//		c = 0 for pristine Navionics charts, 1 for Sonar Charts
//
// TRANSPARENT parameter: 
//		FALSE for non-layer
//		TRUE for layer
//
// UGC parameter: 
//		FALSE for pristine Navionics charts
//		TRUE for additinal user-generated content icons
//******************************************************************************
	String MyLayer       = "config_1_2.00_1"; // 2.00 varie entre 0 et 10
	String MyTransparent = "FALSE";
	String MyTheme       = "0";

tileType = "jpg";	// Type d’image fourni par le serveur
tileSize = 256;		// Facultatif : Supprimer la ligne dans le doute
minZoom = 2;		// Facultatif : Zoom minimal souhaité (et/ou fourni par le serveur)
maxZoom = 18;		// Facultatif : Zoom maximal souhaité (et/ou fourni par le serveur) -> Maximum 22 pour Mobac

String getTileUrl(int Zoom, int X, int Y) 
{
	if (Zoom < 7) {
		// gestion Zoom < 7, on prend une carte générique Google pour voir le monde entier
		return "http://mt0.google.com/vt/lyrs=m@176103410&hl=fr&s=Galileo&scale=1&z=" + Zoom + "&x=" + X + "&y=" + Y;
	}else{
		Num_Server = (X % 4) + 1;	// 1 2 3 4
		// Le lien de test est non exploitable, car le token est expiré !
		// "https://backend.navionics.com/tile/10/506/351?LAYERS=config_1_2_1&TRANSPARENT=FALSE&UGC=TRUE&theme=0&navtoken=eyJrZXkiOiJOQVZJT05JQ1NfV0VCQVBQX1AwMSIsImtleURvbWFpbiI6IndlYmFwcC5uYXZpb25pY3MuY29tIiwicmVmZXJlciI6IndlYmFwcC5uYXZpb25pY3MuY29tIiwicmFuZG9tIjoxNjMyNzYxMDU4NDQ2fQ"
		// urlX_de_visualisation = "http://randochartreuse.free.fr/mobac2.x/images/cartes/navionics-1.png"
		// Gestion du Token
		VTimeStamp = System.currentTimeMillis();
		if (VTimeStamp > (MyVTimeStamp + MyTimmer)) {		
			MyVTimeStamp = VTimeStamp;
			MyToken = GetNavToken();
		}
		return "https://tile" + Num_Server + MyServer + "/" + MyFolder + "/" + Zoom + "/" + X + "/" + Y + "?LAYERS=" + MyLayer + "&TRANSPARENT=" + MyTransparent + "&theme=" + MyTheme + "&navtoken=" + MyToken;
	}
}

void addHeaders(java.net.HttpURLConnection conn) 
{
	conn.addRequestProperty("Referer",MyReferer);
	conn.addRequestProperty("Origin",MyOrigin);
	conn.addRequestProperty("User-Agent",MyUserAgent);	
}

// Fonction Token Navionics
//
//******************************************************************************
// LAYERS parameter: config_a_b_c
//		a = 1 for depth in meters, 2 for depth in feet, 3 for fathoms
//		b = 10.00: for 10.00 m safety depth (beginning of blue coloring) (unit equal to that set by a)
//		c = 0 for pristine Navionics charts, 1 for Sonar Charts
//
// TRANSPARENT parameter: 
//		FALSE for non-layer
//		TRUE for layer
//
// UGC parameter: 
//		FALSE for pristine Navionics charts
//		TRUE for additinal user-generated content icons
//******************************************************************************
GetNavToken()
{
	String Result;
	int VResponseCode;
	
	URL url = new URL("https://tile1.navionics.com/tile/get_key/Navionics_webapi_04041/maps.garmin.com");
	HttpURLConnection connection = (HttpURLConnection) url.openConnection();
	connection.setRequestMethod("GET");
	connection.setRequestProperty("Referer","https://maps.garmin.com/");
	connection.setRequestProperty("Origin","https://maps.garmin.com");
	VResponseCode = connection.getResponseCode();  
	InputStream out = connection.getContent();
	BufferedReader reader = new BufferedReader(new InputStreamReader(out, "iso-8859-1"), 8);
	StringBuilder sb = new StringBuilder();
	String line = null;
		while ((line = reader.readLine()) != null) {	// Read line by line
			sb.append(line + "\n");
		}
		String resString = sb.toString(); // Result is here
		out.close(); // Close the stream
		if (VResponseCode == 200) {
			Result = resString;
		}
	connection.disconnect();
	return Result;
}

//
// FIN Token Navionics
//