import com.alexmerz.graphviz.*;

import com.alexmerz.graphviz.objects.*;

import java.io.FileNotFoundException;

import java.io.FileReader;

import java.util.ArrayList;

public class entityParser {

public entityParser(String dotFile, GameModel model){

try {

Parser parser = new Parser();

FileReader reader = new FileReader(dotFile);

parser.parse(reader);

ArrayList<Graph> graphs = parser.getGraphs();

ArrayList<Graph> firstSubgraph = graphs.get(0).getSubgraphs();

// Iterates through each graph creating a new location, and setting it's paths.

for(Graph locOrPath : firstSubgraph){

ArrayList<Graph> secondSubgraph = locOrPath.getSubgraphs();

for (Graph location : secondSubgraph){

ArrayList<Node> nodeArray = location.getNodes(false); //gets all the nodes describing location

Node nodeLoc = nodeArray.get(0);

createNewLocation(model, location, nodeLoc);

}

setPaths(model, locOrPath);

}

} catch (FileNotFoundException | ParseException f) {

System.out.println(f);

}

}

public void createNewLocation(GameModel model, Graph location, Node nodeLoc){

Location newLocation = new Location();

// Sets the parameters of the location (name, description).

newLocation.setLocationName(nodeLoc.getId().getId());

newLocation.setLocationDescription(nodeLoc.getAttribute("description"));

model.setNewEntity(nodeLoc.getId().getId(), nodeLoc.getAttribute("description"), "location");

// Sets the entities within the location

ArrayList<Graph> thirdSubgraph = location.getSubgraphs();

for (Graph entities : thirdSubgraph) {

ArrayList<Node> nodeArray = entities.getNodes(false);

for (Node nodeEntity : nodeArray) {

setEntitiesAtLocation(entities, nodeEntity, newLocation, model);

}

}

model.createLocation(newLocation, newLocation.getLocationName()); // Adds location to be stored in the GameModel

}

// Adds possible pathways to that location

public void setPaths(GameModel model, Graph paths){

ArrayList<Edge> edges = paths.getEdges();

for (Edge edgePath : edges){

if (model.locationExist(edgePath.getSource().getNode().getId().getId())) {

model.getOneLocation(edgePath.getSource().getNode().getId().getId()).setPaths(edgePath.getTarget().getNode().getId().getId());

}

}

}

// Sets the parameters for entities at the location (name, type, description).

public void setEntitiesAtLocation(Graph entities, Node nodeEntity, Location newLocation, GameModel model){

String name = nodeEntity.getId().getId();

String type = entities.getId().getId().toLowerCase();

String description = nodeEntity.getAttribute("description").toLowerCase();

newLocation.createEntity(name, type, description, model);

}

}