package memento;

/**
 * Memento — a snapshot of the editor's state.
 * Immutable: once created, the state cannot be changed.
 * The Caretaker holds these; the Originator creates and restores from them.
 */
public final class EditorMemento {
    private final String content;
    private final int cursorPosition;
    private final String selectedText;

    EditorMemento(String content, int cursorPosition, String selectedText) {
        this.content        = content;
        this.cursorPosition = cursorPosition;
        this.selectedText   = selectedText;
    }

    // Package-private: only the Editor (Originator) should read the state back
    String getContent()      { return content; }
    int getCursorPosition()  { return cursorPosition; }
    String getSelectedText() { return selectedText; }

    @Override
    public String toString() {
        return "Snapshot[content=\"" + content + "\", cursor=" + cursorPosition + "]";
    }
}