AIPlayRingtones/AIPlayRingtones/AppPage/APAudioToRingVC/VM/APAudioToRingVM.swift

//
//  APAudioToRingVM.swift
//  AIPlayRingtones
//
//  Created by mini on 2025/5/19.
//

import Combine
import ObjectMapper

class APAudioToRingVM {
    private var cancellables = Set<AnyCancellable>()
    //输入框内容
    @Published var promptText:String = ""
    
    @Published var ringFilePath:URL?
    
    //选择生成类类型
    var generateStyleIndex:Int = 0
    @Published var selectedGenerateModel:ASGenerateStyleModel?
    lazy var generateStyleModels: [ASGenerateStyleModel] = {
        var ptpStyleModels = [ASGenerateStyleModel]()
        if let dataArray = Mapper<ASGenerateStyleModel>().mapArray(JSONfile: "ring_rtr_style.json"){
            ptpStyleModels = dataArray
            
            if let model = dataArray.safeObj(At: generateStyleIndex) {
                selectedGenerateModel = model //加上默认的选择
            }
        }
        
        return ptpStyleModels
    }()
    
    
    @Published private(set) var isCanGennerate: Bool = false
    init(){
        
       
//        Publishers.CombineLatest3($promptText, $ringFilePath,$selectedGenerateModel)
        Publishers.CombineLatest($ringFilePath,$selectedGenerateModel)
              .map { ringFilePath,generateStyleModel in
                  // 当两者长度都 > 0 时返回 true
                  return ringFilePath != nil && generateStyleModel != nil
              }
              .assign(to: \.isCanGennerate, on: self)
              .store(in: &cancellables)
    }

    
    //用户生成图片的TSGenerateStyleModel
    var generateStyleModel:ASGenerateStyleModel{
        let generateStyleModel = selectedGenerateModel!
        generateStyleModel.inputText = promptText
        generateStyleModel.duration = 10
        generateStyleModel.upLoadFilePath = ringFilePath
        generateStyleModel.generateType = .ringToRing
        return generateStyleModel
    }
}