using CPRNIMS.Domain.UIContracts.Common;
using Microsoft.Extensions.Configuration;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;

namespace CPRNIMS.Domain.UIServices.Common
{
    public class ApiConfigurationService : IApiConfigurationService
    {
        private readonly IConfiguration _configuration;
        public string BaseUrl => _configuration["CommonEndpoints:ApiDefaultHeaders:BaseUrl"];
        public ApiConfigurationService(IConfiguration configuration)
        {
            _configuration = configuration;
        }
        public HttpClient CreateHttpClientWithDefaultHeaders(string token)
        {
            if (_configuration == null)
            {
                throw new InvalidOperationException("_apiConfigurationService is not configured.");
            }
            if (string.IsNullOrEmpty(BaseUrl))
            {
                throw new InvalidOperationException("BaseUrl is not configured.");
            }

            var httpClient = new HttpClient(new HttpClientHandler
            {
                ServerCertificateCustomValidationCallback = (sender, cert, chain, sslPolicyErrors) => true
            })
            {
                BaseAddress = new Uri(BaseUrl)
            };

            var defaultHeaders = DefaultHeaders;


            httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);

            var customHeaders = CustomHeaders;
            foreach (var header in customHeaders)
            {
                httpClient.DefaultRequestHeaders.Add(header.Key, header.Value);
            }

            return httpClient;
        }
        public Dictionary<string, string> DefaultHeaders
        {
            get
            {
                var headersSection = _configuration.GetSection("CommonEndpoints:ApiDefaultHeaders");
                var headers = new Dictionary<string, string>();

                foreach (var childSection in headersSection.GetChildren())
                {
                    headers[childSection.Key] = childSection.Value;
                }

                return headers;
            }
        }

        public Dictionary<string, string> CustomHeaders
        {
            get
            {
                var headersSection = _configuration.GetSection("CommonEndpoints:CustomApiHeaders");
                var headers = new Dictionary<string, string>();

                foreach (var childSection in headersSection.GetChildren())
                {
                    headers[childSection.Key] = childSection.Value;
                }
                return headers;
            }
        }
    }
}