//
//  KMNoteReplyHanddler.swift
//  PDF Reader Pro
//
//  Created by User-Tangchao on 2024/9/19.
//

import Cocoa

// 注释回复处理类

class KMNoteReplyHanddler: NSObject {
    
    func markAnnotation(_ anno: CPDFAnnotation?) {
        guard let state = self.fetchAnnoState(anno) else {
            anno?.createReplyStateAnnotation(.marked)
            return
        }
        if state == .unMarked {
            anno?.setAnnotState(.marked)
        }
    }
    
    func unMarkAnnotation(_ anno: CPDFAnnotation?) {
        guard let state = self.fetchAnnoState(anno) else {
            return
        }
        if state == .marked {
            anno?.setAnnotState(.unMarked)
        }
    }
    
    func fetchAnnoState(_ anno: CPDFAnnotation?) -> CPDFAnnotationState? {
        guard let replyA = self.fetchMarkAnnotation(anno) else {
            return nil
        }
        return replyA.getAnnotState()
    }
    
    func fetchMarkAnnotation(_ anno: CPDFAnnotation?) -> CPDFAnnotation? {
        guard let theAnno = anno else {
            return nil
        }
        
        for replyA in theAnno.replyAnnotations ?? [] {
            if replyA.replyAnnotationType == .mark {
                return replyA
            }
        }
        return nil
    }
}