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package net.sowgro.npehero.levelapi;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.ToNumberPolicy;
import java.io.*;
import java.util.HashMap;
import java.util.Map;
/**
* Represents a difficulty
* Responsible for the data in metadata.yml
*/
public class Difficulty implements Comparable<Difficulty>
{
public final File thisDir;
public final Level level;
public String title = "Unnamed";
public Double bpm = 0.0;
public double endTime = 0;
public int order = 0;
public final Leaderboard leaderboard;
public final Notes notes;
private final Gson jsonParser = new GsonBuilder().serializeNulls().setPrettyPrinting().setNumberToNumberStrategy(ToNumberPolicy.DOUBLE).create();
private final File jsonFile;
/**
* Creates a new Difficulty
* @param newDir: The file path of the Difficulty
* @throws IOException If there are any problems reading the metadata or leaderboard files
*/
public Difficulty(File newDir, Level level) throws IOException {
thisDir = newDir;
this.level = level;
jsonFile = new File(thisDir, "metadata.json");
readMetadata();
notes = new Notes(new File(thisDir, "notes.txt"), this); // needs metadata first
leaderboard = new Leaderboard(new File(thisDir, "leaderboard.json"));
}
/**
* Read in the data from metadata.json
* @throws IOException If there are any problems loading the file.
*/
public void readMetadata() throws IOException {
if (!jsonFile.exists()) {
return;
}
@SuppressWarnings("unchecked")
Map<String, Object> data = jsonParser.fromJson(new FileReader(jsonFile), Map.class);
if (data == null) {
data = new HashMap<>();
}
title = (String) data.getOrDefault("title", title);
bpm = (Double) data.getOrDefault("bpm", bpm);
endTime = (double) data.getOrDefault("endTime", endTime);
if (endTime == 0) {
int tmp = (int) (double) data.getOrDefault("numBeats", 0.0);
if (tmp != 0) {
endTime = Notes.beatToSecond(tmp, bpm);
}
}
order = (int) (double) data.getOrDefault("priority", (double) order);
}
/**
* Checks the validity of the difficulty
* <p>
* A valid difficulty has at least one note
* @return True if the difficulty is valid
*/
public boolean isValid() {
return !notes.list.isEmpty();
}
/**
* Writes metadata to json file
* @throws IOException If there is a problem writing to the file
*/
public void writeMetadata() throws IOException {
if (!jsonFile.exists() && !jsonFile.createNewFile()) {
throw new IOException("Could not create file " + jsonFile.getAbsolutePath());
}
@SuppressWarnings("unchecked")
Map<String, Object> data = jsonParser.fromJson(new FileReader(jsonFile), Map.class); // start with previous values
if (data == null) {
data = new HashMap<>();
}
data.put("title", title);
data.put("endTime", endTime);
data.put("priority", order);
FileWriter fileWriter = new FileWriter(jsonFile);
jsonParser.toJson(data, fileWriter);
fileWriter.close();
}
@Override
public int compareTo(Difficulty d) {
return order - d.order;
}
}
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