//
//  TSPurchaseManager+Free.swift
//  AIEmoji
//
//  Created by 100Years on 2025/7/24.
//


let kFreeNumKey = "kFreeNumKey"
extension PurchaseManager {
    
    /// 使用一次免费次数
    func useOnceForFree(type: VipFreeNumType) {
        if isVip {
            return
        }
        
        /// 总使用次数
        saveForVipFreeNum(type: type)
        saveForDayGeneratedNum(type: type)
        saveForVipGeneratedNum(type: type)
    }
    
    func saveForUserKeychain(data:[String:Any],key:String) {
        UserDefaults.standard.set(data, forKey: key)
        UserDefaults.standard.synchronize()
        
        //保存到钥匙串
        if let jsonString = data.toJSONString() {
            KeychainManager.save(jsonString, forKey: key)
            dePrint("从钥匙串存入了key=\(key),jsonString=\(jsonString)")
        }
    }
}


/// 免费生成图片次数
extension PurchaseManager {

    func initializeForFree() {
        
        if let jsonString = KeychainManager.load(forKey: kFreeNumKey, type: String.self),
           let jsonDict = jsonString.jsonDict() as? [String: Int]
        {
            UserDefaults.standard.set(jsonDict, forKey: kFreeNumKey)
            UserDefaults.standard.synchronize()
            dePrint("从钥匙串取出了freeDict=\(jsonDict)")
        }
        
        if let jsonString = KeychainManager.load(forKey: kDayGeneratedNumKey, type: String.self),
           let jsonDict = jsonString.jsonDict() as? [String: [String: Any]]
        {
            UserDefaults.standard.set(jsonDict, forKey: kDayGeneratedNumKey)
            UserDefaults.standard.synchronize()
            dePrint("从钥匙串取出了kDayGeneratedNumKey=\(jsonDict)")
        }
        
        if let jsonString = KeychainManager.load(forKey: kVipGeneratedNumKey, type: String.self),
           let jsonDict = jsonString.jsonDict() as? [String: [String: Any]]
        {
            UserDefaults.standard.set(jsonDict, forKey: kVipGeneratedNumKey)
            UserDefaults.standard.synchronize()
            dePrint("从钥匙串取出了kVipGeneratedNumKey=\(jsonDict)")
        }

    }

    func saveForVipFreeNum(type: VipFreeNumType){
        var freeDict = getFreeDict()
        var freeNum = freeDict[type.rawValue] ?? 0
        if freeNum > 0 {
            freeNum-=1
        }
        
        if freeNum < 0 {
            freeNum = 0
        }
        
        freeDict[type.rawValue] = freeNum
        saveForUserKeychain(data: freeDict,key: kFreeNumKey)
        NotificationCenter.default.post(name: .kVipFreeNumChanged, object: nil, userInfo: ["VipFreeNumType": type])
    }

    func freeNum(type:VipFreeNumType) -> Int{
        let freeNum = getFreeDict()[type.rawValue] ?? 0
        return freeNum
    }
    
    
    func getFreeDict()->[String:Int]{
        if let dict = UserDefaults.standard.dictionary(forKey: kFreeNumKey) as? [String:Int]{
            return dict
        }else{
            let dict = [
                VipFreeNumType.generatePic.rawValue: 1,
                VipFreeNumType.aichat.rawValue: 1,
                VipFreeNumType.textGeneratePic.rawValue: 1,
                VipFreeNumType.picToPic.rawValue: 1,
                VipFreeNumType.aiGenerate.rawValue: 1,
                VipFreeNumType.videoV2.rawValue: 1,
            ]
            return dict
        }
    }

    /// 免费次数是否可用
    func freeNumAvailable(type: VipFreeNumType) -> Bool {
        if isVip == true {
            return true
        } else {
            if let freeNum = getFreeDict()[type.rawValue], freeNum > 0 {
                return true
            }
        }
        return false
    }

    /// 是否展示生成类的会员图标
    func generateVipShow(type: VipFreeNumType) -> Bool {
        if isVip == false, freeNum(type: type) > 0 {
            return false
        }
        return true
    }
}