using Imagoverum.FleetManagement.BizLogic;
using Matrix42.Blob.Contracts;
using Matrix42.WebApi.Contracts;
using System.Runtime.InteropServices;

namespace Imagoverum.FleetManagement.Services
{
	[RoutePrefix("api/car")]
	public class CarController(IBlobManager blobManager) : ApiController
	{
		[HttpGet, Route("geoposition")]
		public GeoLocation GetLocation(string region = "world")
		{
			return GeoLocation.GetRandom(region);
		}

		[HttpPost, Route("test")]
		public string TestCar()
		{
			var blobState = blobManager.IsBlobConfigured()
				? "With Configured Cloud"
				: "Without Configured Cloud";

			return CarTester.IsCarWorkingProperly()
				? $"Car test successful completed ({blobState}) on {RuntimeInformation.OSDescription} environment at " + DateTime.UtcNow.ToString("o")
				: $"Car test failed ({blobState}) on {RuntimeInformation.OSDescription} environment at " + DateTime.UtcNow.ToString("o");
		}

		[Route("error")]
		[HttpGet]
		public IHttpActionResult Throw()
		{
			throw new Exception("Boom! Unhandled!");
		}

		public class GeoLocation(double latitude, double longitude)
		{
			/// <summary>
			/// Latitude in decimal degrees. Valid range: -90 to 90.
			/// </summary>
			public double Latitude { get; set; } = latitude;

			/// <summary>
			/// Longitude in decimal degrees. Valid range: -180 to 180.
			/// </summary>
			public double Longitude { get; set; } = longitude;

			/// <summary>
			/// Generates a random geographic location.
			/// If a region is specified, limits the random coordinates within that region.
			/// </summary>
			/// <param name="region">Optional region: "europe", "asia", "north-america", "south-america", "africa", "australia", or "world" (default).</param>
			public static GeoLocation GetRandom(string region = "world")
			{
				var rnd = new Random();

				// Define approximate bounding boxes for major regions
				(double latMin, double latMax, double lonMin, double lonMax) bounds = region.ToLower() switch
				{
					"europe" => (35, 71, -25, 45),
					"asia" => (-10, 81, 25, 180),
					"north-america" => (5, 83, -170, -30),
					"south-america" => (-56, 13, -82, -34),
					"africa" => (-35, 37, -18, 52),
					"australia" => (-47, -10, 110, 155),
					_ => (-90, 90, -180, 180) // whole world
				};

				double latitude = rnd.NextDouble() * (bounds.latMax - bounds.latMin) + bounds.latMin;
				double longitude = rnd.NextDouble() * (bounds.lonMax - bounds.lonMin) + bounds.lonMin;

				return new GeoLocation(latitude, longitude);
			}

			public override string ToString() => $"Lat: {Latitude:F5}, Lon: {Longitude:F5}";
		}
	}
}