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package net.sowgro.npehero.levelapi;
import java.io.*;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import javafx.scene.image.Image;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.paint.Color;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.util.HashMap;
import java.util.Map;
public class Level implements Comparable<Level>{
public static final String SONG_FILE = "song";
public static final String BACKGROUND_FILE = "background";
public static final String PREVIEW_FILE = "preview";
public final File dir;
public String title = "Unnamed";
public String artist = "Unknown";
public String desc;
public Color[] colors = {Color.RED,Color.BLUE,Color.GREEN,Color.PURPLE,Color.YELLOW};
public Image preview;
public Image background;
public Media song;
public Difficulties difficulties;
private final File jsonFile;
private final Gson jsonParser = new GsonBuilder().serializeNulls().setPrettyPrinting().create();
private File songFile;
private File previewFile;
private File backgroundFile;
/**
* Creates a new level
* @param newDir The path of the Level
* @throws IOException If there is a problem reading the metadata file or loading the difficulties
*/
public Level(File newDir) throws IOException
{
dir = newDir;
jsonFile = new File(dir, "metadata.json");
readFiles();
readMetadata();
difficulties = new Difficulties(this);
}
/**
* Check for a song file, background file and preview image file
*/
public void readFiles() {
songFile = null;
previewFile = null;
backgroundFile = null;
song = null;
background = null;
preview = null;
File[] fileList = dir.listFiles();
if (fileList == null) {
return;
}
for (File file : fileList) {
String fileName = file.getName();
if (fileName.contains(SONG_FILE)) {
songFile = file;
song = new Media(file.toURI().toString());
new MediaPlayer(song); // allows song.getDuration() to return
}
else if (fileName.contains(BACKGROUND_FILE)) {
backgroundFile = file;
background = new Image(file.toURI().toString());
}
else if (fileName.contains(PREVIEW_FILE)) {
previewFile = file;
preview = new Image(file.toURI().toString());
}
}
}
/**
* Read in metadata file
* @throws IOException If there is a problem reading 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) {
return;
}
title = (String) data.getOrDefault("title", title);
artist = (String) data.getOrDefault("artist", artist);
desc = (String) data.getOrDefault("desc", desc);
colors[0] = Color.web((String) data.getOrDefault("color1", colors[0].toString()));
colors[1] = Color.web((String) data.getOrDefault("color2", colors[1].toString()));
colors[2] = Color.web((String) data.getOrDefault("color3", colors[2].toString()));
colors[3] = Color.web((String) data.getOrDefault("color4", colors[3].toString()));
colors[4] = Color.web((String) data.getOrDefault("color5", colors[4].toString()));
}
/**
* Checks if the level is valid.
* <p>
* A valid level has a song file and 1 or more valid difficulties
* @return True if the level is valid
*/
public boolean isValid() {
if (song == null) {
return false;
}
if (difficulties.getValidList().isEmpty()) {
return false;
}
return true;
}
/**
* 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);
if (data == null) {
data = new HashMap<>();
}
data.put("title", title);
data.put("artist", artist);
data.put("desc", desc);
data.put("color1",colors[0].toString());
data.put("color2",colors[1].toString());
data.put("color3",colors[2].toString());
data.put("color4",colors[3].toString());
data.put("color5",colors[4].toString());
FileWriter fileWriter = new FileWriter(jsonFile);
jsonParser.toJson(data, fileWriter);
fileWriter.close();
}
/**
* Copies a file into the level directory with the name provided. The extension will be inherited from the source file
* @param source: the file to be copied
* @param name: the new file name EXCLUDING the extension.
* @throws IOException If there is a problem adding the file
*/
public void addFile(File source, String name) throws IOException {
name = name + "." + getFileExtension(source);
Files.copy(source.toPath(), new File(dir, name).toPath(), StandardCopyOption.REPLACE_EXISTING);
readFiles();
}
/**
* Deletes a file from the level's directory
* @param name the new file name EXCLUDING the extension.
* @throws IOException If there is a problem deleting the file
*/
public void removeFile(String name) throws IOException {
File f = switch (name) {
case SONG_FILE -> songFile;
case BACKGROUND_FILE -> backgroundFile;
case PREVIEW_FILE -> previewFile;
default -> throw new IllegalArgumentException("Invalid file name " + name);
};
if (!f.delete()) {
throw new IOException("Failed to delete file " + f.getAbsolutePath());
}
readFiles();
}
@Override
public int compareTo(Level other) {
return title.compareTo(other.title);
}
/**
* Get the extension of a file.
* @param file The file to return the extension of
* @return The extension of the file in the format "*.ext"
*/
public String getFileExtension(File file) {
return file.getName().substring(file.getName().lastIndexOf('.') + 1);
}
}
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