using BTCPayServer.Authentication;
using BTCPayServer.Configuration;
using Microsoft.AspNetCore.Html;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Newtonsoft.Json;
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.Text;
using System.Text.Encodings.Web;

namespace BTCPayServer
{
    public static class Extensions
    {
        public static string WithTrailingSlash(this string str)
        {
            if (str.EndsWith("/"))
                return str;
            return str + "/";
        }

        public static string GetAbsoluteRoot(this HttpRequest request)
        {
            return string.Concat(
                        request.Scheme,
                        "://",
                        request.Host.ToUriComponent(),
                        request.PathBase.ToUriComponent());
        }

        public static IServiceCollection ConfigureBTCPayServer(this IServiceCollection services, IConfiguration conf)
        {
            services.Configure<BTCPayServerOptions>(o =>
            {
                o.LoadArgs(conf);
            });
            return services;
        }


        public static BitIdentity GetBitIdentity(this Controller controller, bool throws = true)
        {
            if (!(controller.User.Identity is BitIdentity))
                return throws ? throw new UnauthorizedAccessException("no-bitid") : (BitIdentity)null;
            return (BitIdentity)controller.User.Identity;
        }

        private static JsonSerializerSettings jsonSettings = new JsonSerializerSettings { ContractResolver = new CamelCasePropertyNamesContractResolver() };
        public static string ToJson(this object o)
        {
            var res = JsonConvert.SerializeObject(o, Formatting.None, jsonSettings);
            return res;
        }

        public static HtmlString ToSrvModel(this object o)
        {
            var encodedJson = JavaScriptEncoder.Default.Encode(o.ToJson());
            return new HtmlString("var srvModel = JSON.parse('" + encodedJson + "');");
        }


    }
}