using System;
using Serilog;
using ShareeBike.Model.Connector;
using ShareeBike.Repository.Response;

namespace ShareeBike.Repository
{
	public static class CopriCallsStatic
	{
#if !USCSHARP9
		private static Version UNSUPPORTEDFUTURECOPRIVERSIONLOWER = new Version(4, 1);
#else
        private static Version UNSUPPORTEDFUTURECOPRIVERSIONLOWER = new(4, 1);
#endif

#if !USCSHARP9
		private static Version UNSUPPORTEDFUTURECOPRIVERSIONUPPER = new Version(4, 2);
#else
        private static Version UNSUPPORTEDFUTURECOPRIVERSIONUPPER = new(4, 2);
#endif
		public static Version UnsupportedVersionLower => UNSUPPORTEDFUTURECOPRIVERSIONLOWER;

		public static Version UnsupportedVersionUpper => UNSUPPORTEDFUTURECOPRIVERSIONUPPER;

		/// <summary> Deserializes response JSON if response is of supported version or provides default response otherwise. </summary>
		/// <typeparam name="T">Type of response object.</typeparam>
		/// <param name="response">Response JSON.</param>
		/// <param name="emptyResponseFactory">Factory providing default delegate.</param>
		/// <returns>Response object.</returns>
		public static T DeserializeResponse<T>(this string response, Func<string, T> emptyResponseFactory) where T : class
		{
			// Get COPRI version from response.
			var bikeInfoBase = JsonConvertRethrow.DeserializeObject<VersionindependentResponse>(response)?.shareejson;

			if (bikeInfoBase.GetCopriVersion() < UNSUPPORTEDFUTURECOPRIVERSIONLOWER
				|| bikeInfoBase.GetCopriVersion() >= UNSUPPORTEDFUTURECOPRIVERSIONUPPER)
			{
				return emptyResponseFactory?.Invoke(bikeInfoBase.copri_version) ?? null;
			}

			return JsonConvertRethrow.DeserializeObject<ResponseContainer<T>>(response)?.shareejson;
		}

		/// <summary> Deserializes response JSON if response is of supported version or throws an exception. </summary>
		/// <typeparam name="T">Type of response object.</typeparam>
		/// <param name="response">Response JSON.</param>
		/// <param name="unsupportedVersionExectpion">Exception to fire.</param>
		/// <returns>Response object.</returns>
		public static T DeserializeResponse<T>(
			this string response,
			Func<string, System.Exception> unsupportedVersionExectpion = null) where T : class
		{

			// Get COPRI version from response.
			var bikeInfoBase = JsonConvertRethrow.DeserializeObject<VersionindependentResponse>(response)?.shareejson;

			if (bikeInfoBase.GetCopriVersion() < UNSUPPORTEDFUTURECOPRIVERSIONLOWER
				|| bikeInfoBase.GetCopriVersion() >= UNSUPPORTEDFUTURECOPRIVERSIONUPPER)
			{
				Log.Error($"Unsupported copri version {bikeInfoBase.copri_version} detected on attempt to log in.");
				throw unsupportedVersionExectpion?.Invoke(bikeInfoBase.copri_version) ?? new System.Exception($"Unsupported COPRI version {bikeInfoBase.copri_version} detected.");
			}

			return JsonConvertRethrow.DeserializeObject<ResponseContainer<T>>(response)?.shareejson;
		}
	}
}