110 lines
2.7 KiB
Java
110 lines
2.7 KiB
Java
package me.mrletsplay.videobase.library;
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import java.util.Map;
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import java.util.Objects;
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import me.mrletsplay.mrcore.json.JSONObject;
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import me.mrletsplay.mrcore.json.JSONType;
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import me.mrletsplay.mrcore.json.converter.JSONConstructor;
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import me.mrletsplay.mrcore.json.converter.JSONConvertible;
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import me.mrletsplay.simplehttpserver.http.validation.JsonObjectValidator;
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public class VideoMetadata implements JSONConvertible {
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public static final String
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FIELD_SERIES = "series",
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FIELD_TITLE = "title",
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FIELD_AUTHOR = "author",
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FIELD_INDEX = "index";
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public static final String
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DEFAULT_SERIES = "Unnamed Series",
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DEFAULT_TITLE = "Unnamed Video",
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DEFAULT_AUTHOR = "Unnamed Author";
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public static final int
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DEFAULT_INDEX = 0;
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public static final VideoMetadata DEFAULT_METADATA = new VideoMetadata(new JSONObject(Map.of(
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FIELD_SERIES, DEFAULT_SERIES,
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FIELD_TITLE, DEFAULT_TITLE,
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FIELD_AUTHOR, DEFAULT_AUTHOR,
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FIELD_INDEX, DEFAULT_INDEX
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)));
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public static final JsonObjectValidator VALIDATOR = new JsonObjectValidator()
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.optional(FIELD_SERIES, JSONType.STRING)
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.optional(FIELD_TITLE, JSONType.STRING)
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.optional(FIELD_AUTHOR, JSONType.STRING)
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.optional(FIELD_INDEX, JSONType.INTEGER);
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private JSONObject metadata;
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@JSONConstructor
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private VideoMetadata() {}
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public VideoMetadata(JSONObject metadata) {
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Objects.requireNonNull(metadata, "metadata");
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this.metadata = metadata;
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}
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public String getSeries() {
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return metadata.optString(FIELD_SERIES).orElse(null);
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}
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public String getTitle() {
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return metadata.optString(FIELD_TITLE).orElse(null);
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}
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public String getAuthor() {
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return metadata.optString(FIELD_AUTHOR).orElse(null);
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}
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public Integer getIndex() {
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return metadata.optInt(FIELD_INDEX).orElse(null);
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}
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public JSONObject getRaw() {
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return new JSONObject(metadata);
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}
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@Override
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public void preDeserialize(JSONObject object) {
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this.metadata = object;
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}
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@Override
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public void preSerialize(JSONObject object) {
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for(String key : metadata.keys()) {
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object.set(key, metadata.get(key));
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}
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}
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@Override
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public String toString() {
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return metadata.toString();
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}
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public static VideoMetadata inherit(VideoMetadata parent, VideoMetadata child) {
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if(parent == null) return child;
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if(child == null) return parent;
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JSONObject meta = new JSONObject(parent == null ? null : parent.metadata);
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for(String key : child.metadata.keys()) {
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Object value = child.metadata.get(key);
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if(value == null) { // Setting to null resets to default value if available, otherwise removes attribute
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value = DEFAULT_METADATA.metadata.opt(key).orElse(null);
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if(value == null) {
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meta.remove(key);
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continue;
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}
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}
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meta.set(key, value);
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}
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return new VideoMetadata(meta);
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}
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}
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