//
//  VPBannerAdManager.swift
//  Veloria
//
//  Created by 湖南秦九 on 2025/7/15.
//

import UIKit
#if canImport(AppLovinSDK)
import AppLovinSDK
#endif


@objc protocol VPBannerAdDelegate: NSObjectProtocol {
    ///广告加载失败
    @objc optional func bannerAd(bannerAd: VPBannerAd, didLoadFail error: Error)
    ///广告加载成功
    @objc optional func bannerAdDidLoadFinish(bannerAd: VPBannerAd)
    ///广告被展示
    @objc optional func bannerAdDidShow(bannerAd: VPBannerAd)
    ///广告被关闭
    @objc optional func bannerAdDidDismiss(bannerAd: VPBannerAd)
    ///广告被点击
    @objc optional func bannerAdDidClick(ad: VPBannerAd)
}

@objc protocol VPBannerAd: NSObjectProtocol {
    
    weak var delegate: VPBannerAdDelegate? { get set }
    
    var adView: UIView { get }
    
    var adPlatformKey: String { get }
    
    var adUnitID: String { get }
    
    func loadAd()
    
}

class VPBannerAdManager: NSObject {
    
    let size = CGSize.init(width: UIScreen.width, height: 59)
    
    var videoInfo: VPVideoInfoModel?
    
    private var adsDate: Date?
    
    private(set) lazy var bannerAd: VPBannerAd = {
        let ad = VPApplovinBannerAd()
        ad.delegate = self
        return ad
    }()
    
    var adView: UIView {
        return bannerAd.adView
    }
    
    deinit {
        NotificationCenter.default.removeObserver(self)
    }
    
    override init() {
        super.init()
        NotificationCenter.default.addObserver(self, selector: #selector(didEnterBackgroundNotification), name: UIApplication.didEnterBackgroundNotification, object: nil)
        
        bannerAd.loadAd()
    }
    
    
}

//MARK: --------------   VPBannerAdDelegate  --------------
extension VPBannerAdManager: VPBannerAdDelegate {
    
    ///广告加载失败
    func bannerAd(bannerAd: VPBannerAd, didLoadFail error: Error) {
        requestStatAd(type: "load_failed", errorMsg: error.localizedDescription)
    }
    ///广告加载成功
    func bannerAdDidLoadFinish(bannerAd: VPBannerAd) {
        adsDate = Date()
        requestStatAd(type: "start", errorMsg: nil)
    }
    ///广告被展示
    func bannerAdDidShow(bannerAd: VPBannerAd) {
        
    }
    ///广告被关闭
    func bannerAdDidDismiss(bannerAd: VPBannerAd) {
        requestStatAd(type: "close", errorMsg: nil)
    }
    ///广告被点击
    func bannerAdDidClick(ad: VPBannerAd) {
        requestStatAd(type: "click", errorMsg: nil)
    }
    
}

extension VPBannerAdManager {
    
    func requestStatAd(type: String, errorMsg: String?) {
        
        var seconds = 0
        if let adsDate = self.adsDate {
            if type == "click" || type == "close" {
                seconds = Int(Date().timeIntervalSince(adsDate))
            }
        }
        
        if type == "close" && self.adsDate == nil { return }
        
        let model = VPStatAdModel()
        model.view_seconds = seconds
        model.type = type
        model.ads_id = bannerAd.adUnitID
        model.ad_platform_key = VPAdPlatformKey(rawValue: bannerAd.adPlatformKey)
        model.error_msg = errorMsg
        model.scene = .banner
        model.short_play_id = self.videoInfo?.short_play_id
        model.short_play_video_id = self.videoInfo?.short_play_video_id
        
        VPStatAPI.requestStatAd(model: model)
    }
    
    
    @objc private func didEnterBackgroundNotification() {
        
        self.requestStatAd(type: "Interrupt", errorMsg: nil)
    }
}