//
//  KMNEditContentPopMode.swift
//  PDF Reader Pro
//
//  Created by 丁林圭 on 2024/12/2.
//

import Cocoa
@objc public enum EditContentPopType: Int, CaseIterable{
    case signTextEdit = 0
    case signImageEdit
    case multpleTextEdit
    case multpleImageEdit
    case multpleImageAndText
    case cropImage
    case editNone
}

class KMNEditContentPopMode: NSObject {
    
    private(set) var editArea: CPDFEditArea?
    private(set) var editAreas: [CPDFEditArea] = []
    private(set) var popType: EditContentPopType = .editNone

    init(currentEditAreas: [CPDFEditArea]) {
        super.init()
        if let firstAnnotation = editAreas.first {
            editArea = firstAnnotation
        }
        editAreas = currentEditAreas
        popType = self.contentEditType()
    }
    
    private func contentEditType()->EditContentPopType {
        let editArea:CPDFEditArea = editAreas.first ?? CPDFEditArea.init()
        let editType = contentSingeEditType(editArea: editArea)
        if editAreas.count == 0 {
            return .editNone
        } else if editAreas.count == 1 {
            return editType
        } else {
            var isSampleAnnotation = true
            for i in 1 ..< editAreas.count {
                let editArea:CPDFEditArea = editAreas[i]
                if editType != contentSingeEditType(editArea: editArea)  {
                    isSampleAnnotation = false
                    break
                }
            }
            if(isSampleAnnotation) {
                return editType
            } else {
                return .multpleImageAndText
            }
        }
    }
    
    private func contentSingeEditType(editArea:CPDFEditArea)->EditContentPopType {
        if editArea.isTextArea() {
            return .signTextEdit
        } else if editArea.isImageArea() {
            if let imageEditArea = editArea as? CPDFEditImageArea  {
                if imageEditArea.isCropMode == true {
                    return .cropImage
                }
            }
            return .signImageEdit
        }
        
        return .editNone
    }
    
}