package org.cnnlp.data.splitter;

import org.jetbrains.annotations.NotNull;

import java.io.Serializable;
import java.util.Objects;

public class SubSequence implements Serializable {

    String text;
    int startOffset;
    int endOffset;

    public SubSequence() {

    }

    public SubSequence(String text, int startOffset, int endOffset) {
        this.text = text;
        this.startOffset = startOffset;
        this.endOffset = endOffset;
    }

//    @Override
//    public int compareTo(@NotNull SubSequence o) {
//        return startOffset - o.startOffset;
//    }

    public String getText() {
        return text;
    }

    public void setText(String text) {
        this.text = text;
    }

    public int getStartOffset() {
        return startOffset;
    }

    public void setStartOffset(int startOffset) {
        this.startOffset = startOffset;
    }

    public int getEndOffset() {
        return endOffset;
    }

    public void setEndOffset(int endOffset) {
        this.endOffset = endOffset;
    }

    public void incrementalOffset(int offset) {
        startOffset = startOffset + offset;
        endOffset = endOffset + offset;
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        SubSequence that = (SubSequence) o;
        return startOffset == that.startOffset && endOffset == that.endOffset && Objects.equals(text, that.text);
    }

    @Override
    public int hashCode() {
        return Objects.hash(text, startOffset, endOffset);
    }

    @Override
    public String toString() {
        return "SubSequence{" +
                "text='" + text + '\'' +
                ", startOffset=" + startOffset +
                ", endOffset=" + endOffset +
                '}';
    }

    public static SubSequence build(String text, int startOffset, int endOffset) {
        SubSequence ss = new SubSequence(text, startOffset, endOffset);
        return ss;
    }
}