NetworkLoadingPlugin.swift

//
//  NetworkLoadingPlugin.swift
//  RxNetworks
//
//  Created by Condy on 2021/10/6.
//  https://github.com/yangKJ/RxNetworks

///`MBProgressHUD`文档
/// https://github.com/jdg/MBProgressHUD

import Foundation
import Moya
import MBProgressHUD

/// 加载插件，基于MBProgressHUD封装
/// Loading plugin, based on MBProgressHUD package
public struct NetworkLoadingPlugin: PluginPropertiesable {
    
    public var plugins: APIPlugins = []
    
    public var key: String?
    
    public var delay: Double {
        options.delayHideHUD
    }
    
    public var options: Options
    
    public init(options: Options = .init()) {
        self.options = options
    }
    
    /// Hide the loading hud.
    public func hideMBProgressHUD() {
        let vc = X.removeHUD(key: key)
        vc?.close()
    }
}

extension NetworkLoadingPlugin {
    public struct Options {
        /// Loading will not be automatically hidden and display window.
        public static let dontAutoHide: Options = .init(autoHide: false)
        
        /// Do you need to display an error message, the default is empty
        let displayLoadText: String
        /// Delay hidden, the default is zero seconds
        let delayHideHUD: Double
        /// Do you need to automatically hide the loading hud.
        let autoHideLoading: Bool
        
        public init(text: String = "", delay: Double = 0.0, autoHide: Bool = true) {
            self.displayLoadText = text
            self.delayHideHUD = delay
            self.autoHideLoading = autoHide
        }
        
        var hudCallback: ((_ hud: MBProgressHUD) -> Void)?
        
        /// Change hud related configuration closures.
        public mutating func setChangeHudParameters(block: @escaping (_ hud: MBProgressHUD) -> Void) {
            self.hudCallback = block
        }
    }
}

extension NetworkLoadingPlugin: PluginSubType {
    
    public var pluginName: String {
        return "Loading"
    }
    
    public func willSend(_ request: RequestType, target: TargetType) {
        DispatchQueue.main.async {
            self.showText(options.displayLoadText)
        }
    }
    
    public func didReceive(_ result: Result<Moya.Response, MoyaError>, target: TargetType) {
        if options.autoHideLoading == false, case .success = result {
            return
        }
        DispatchQueue.main.asyncAfter(deadline: .now() + options.delayHideHUD) {
            self.hideMBProgressHUD()
        }
    }
}

extension NetworkLoadingPlugin {
    
    /// Display the prompt text
    private func showText(_ text: String) {
        guard let key = self.key else {
            return
        }
        if let vc = X.readHUD(key: key) {
            if let _ = MBProgressHUD.forView(vc.view) {
                return
            }
            vc.show()
        } else {
            let vc = LevelStatusBarWindowController()
            
            // Set Activity Indicator View to white for hud loading.
            let indicatorView = UIActivityIndicatorView.appearance(whenContainedInInstancesOf: [MBProgressHUD.self])
            indicatorView.color = UIColor.white
            
            let hud = MBProgressHUD.showAdded(to: vc.view, animated: true)
            hud.mode = MBProgressHUDMode.indeterminate
            hud.animationType = MBProgressHUDAnimation.zoom
            hud.removeFromSuperViewOnHide = true
            hud.bezelView.style = MBProgressHUDBackgroundStyle.solidColor
            hud.bezelView.color = UIColor.black.withAlphaComponent(0.7)
            hud.bezelView.layer.cornerRadius = 14
            hud.detailsLabel.text = text
            hud.detailsLabel.font = UIFont.systemFont(ofSize: 16)
            hud.detailsLabel.numberOfLines = 0
            hud.detailsLabel.textColor = UIColor.white
            
            // User defined the hud configuration.
            self.options.hudCallback?(hud)
            
            vc.key = key
            vc.showUpView = hud
            vc.addedShowUpView = true
            vc.show()
            X.saveHUD(key: key, viewController: vc)
        }
    }
}