//
//  YMRequestX.swift
//  yinmeng-ios
//
//  Created by yinmeng on 2024/2/2.
//

import Foundation

public struct YMRequestX {
	/// Maps data received from the signal into a JSON object.
	public static func mapJSON<T>(_ type: T.Type, named: String, forResource: String = "RxNetworks") -> T? {
		guard let data = jsonData(named, forResource: forResource) else {
			return nil
		}
		let json = try? JSONSerialization.jsonObject(with: data, options: .allowFragments)
		return json as? T
	}

	/// Read json data
	public static func jsonData(_ named: String, forResource: String = "RxNetworks") -> Data? {
		let bundle: Bundle?
		if let bundlePath = Bundle.main.path(forResource: forResource, ofType: "bundle") {
			bundle = Bundle.init(path: bundlePath)
		} else {
			bundle = Bundle.main
		}
		guard let path = ["json", "JSON", "Json"].compactMap({
			bundle?.path(forResource: named, ofType: $0)
		}).first else {
			return nil
		}
		let contentURL = URL(fileURLWithPath: path)
		return try? Data(contentsOf: contentURL)
	}

	public static func toJSON(form value: Any, prettyPrint: Bool = false) -> String? {
		guard JSONSerialization.isValidJSONObject(value) else {
			return nil
		}
		var jsonData: Data? = nil
		if prettyPrint {
			jsonData = try? JSONSerialization.data(withJSONObject: value, options: [.prettyPrinted])
		} else {
			jsonData = try? JSONSerialization.data(withJSONObject: value, options: [])
		}
		guard let data = jsonData else { return nil }
		return String(data: data ,encoding: .utf8)
	}

	public static func toDictionary(form json: String) -> [String : Any]? {
		guard let jsonData = json.data(using: .utf8),
			  let object = try? JSONSerialization.jsonObject(with: jsonData, options: []),
			  let result = object as? [String : Any] else {
			return nil
		}
		return result
	}

	public static func keyWindow() -> UIWindow? {
		if #available(iOS 13.0, *) {
			return UIApplication.shared.connectedScenes
				.filter { $0.activationState == .foregroundActive }
				.first(where: { $0 is UIWindowScene })
				.flatMap({ $0 as? UIWindowScene })?.windows
				.first(where: \.isKeyWindow)
		} else {
			return UIApplication.shared.keyWindow
		}
	}

	public static func topViewController() -> UIViewController? {
		let window = UIApplication.shared.delegate?.window
		guard window != nil, let rootViewController = window?!.rootViewController else {
			return nil
		}
		return self.getTopViewController(controller: rootViewController)
	}

	public static func getTopViewController(controller: UIViewController) -> UIViewController {
		if let presentedViewController = controller.presentedViewController {
			return self.getTopViewController(controller: presentedViewController)
		} else if let navigationController = controller as? UINavigationController {
			if let topViewController = navigationController.topViewController {
				return self.getTopViewController(controller: topViewController)
			}
			return navigationController
		} else if let tabbarController = controller as? UITabBarController {
			if let selectedViewController = tabbarController.selectedViewController {
				return self.getTopViewController(controller: selectedViewController)
			}
			return tabbarController
		} else {
			return controller
		}
	}
}