using Microsoft.AspNetCore.Authorization;


using PrivaPub.ClientModels;

using PrivaPub.Models.User;
using System.Security.Claims;

namespace PrivaPub.Extensions
{
	public static class Extensions
	{
		public static AuthorizationPolicy IsAdminPolicy() =>
			new AuthorizationPolicyBuilder().RequireAuthenticatedUser()
																			.RequireClaim(Policies.IsAdmin, true.ToString().ToLower())
																			.RequireClaim(Policies.IsUser, true.ToString().ToLower())
																			.RequireClaim(Policies.IsModerator, true.ToString().ToLower())
																			.Build();

		public static AuthorizationPolicy IsUserPolicy() =>
			new AuthorizationPolicyBuilder().RequireAuthenticatedUser()
																			.RequireClaim(Policies.IsUser, true.ToString().ToLower())
																			.Build();

		public static AuthorizationPolicy IsModeratorPolicy() =>
		 new AuthorizationPolicyBuilder().RequireAuthenticatedUser()
																			.RequireClaim(Policies.IsUser, true.ToString().ToLower())
																			.RequireClaim(Policies.IsModerator, true.ToString().ToLower())
																			.Build();

		public static string GetHostWithPath(this HttpContext httpContext) =>
			$"https://{httpContext.Request.Host}{httpContext.Request.Path}";

		public static string GetHost(this HttpContext httpContext) =>
			$"https://{httpContext.Request.Host}";

		public static UserPolicyType GetHighestPolicy(this ClaimsPrincipal claimsPrincipal)
		{
			if (claimsPrincipal.FindFirstValue(Policies.IsAdmin) == "true")
				return UserPolicyType.IsAdmin;

			if (claimsPrincipal.FindFirstValue(Policies.IsModerator) == "true")
				return UserPolicyType.IsModerator;

			return UserPolicyType.IsUser;
		}
	}
}