using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net;
using System.Threading.Tasks;
using Oqtane.Services;
using Oqtane.Shared;
using System.Text.Json;

namespace SZUAbsolventenverein.Module.HallOfFame.Services
{
    public interface IHallOfFameService 
    {
        Task<List<Models.HallOfFame>> GetHallOfFamesAsync(int ModuleId);

        Task<Models.HallOfFame> GetHallOfFameAsync(int HallOfFameId, int ModuleId);

        Task<Models.HallOfFame> GetHallOfFameByUserIdAsync(int UserId, int ModuleId);

        Task<Models.HallOfFame> AddHallOfFameAsync(Models.HallOfFame HallOfFame);

        Task<Models.HallOfFame> UpdateHallOfFameAsync(Models.HallOfFame HallOfFame);
        Task DeleteHallOfFameAsync(int HallOfFameId, int ModuleId);
        Task ReportAsync(int HallOfFameId, int ModuleId, string reason);
        Task<List<Models.HallOfFameReport>> GetHallOfFameReportsAsync(int HallOfFameId, int ModuleId);
        Task DeleteHallOfFameReportAsync(int HallOfFameReportId, int ModuleId);
        Task<string> UploadFileAsync(System.IO.Stream stream, string fileName, int ModuleId);
    }

    public class HallOfFameService : ServiceBase, IHallOfFameService
    {
        public HallOfFameService(HttpClient http, SiteState siteState) : base(http, siteState) { }

        private string Apiurl => CreateApiUrl("HallOfFame");

        public async Task<List<Models.HallOfFame>> GetHallOfFamesAsync(int ModuleId)
        {
            return await GetJsonAsync<List<Models.HallOfFame>>(CreateAuthorizationPolicyUrl($"{Apiurl}?moduleid={ModuleId}", EntityNames.Module, ModuleId), Enumerable.Empty<Models.HallOfFame>().ToList());
        }

        public async Task<Models.HallOfFame> GetHallOfFameAsync(int HallOfFameId, int ModuleId)
        {
            return await GetJsonAsync<Models.HallOfFame>(CreateAuthorizationPolicyUrl($"{Apiurl}/{HallOfFameId}/{ModuleId}", EntityNames.Module, ModuleId));
        }

        public async Task<Models.HallOfFame> GetHallOfFameByUserIdAsync(int UserId, int ModuleId)
        {
            return await GetJsonAsync<Models.HallOfFame>(CreateAuthorizationPolicyUrl($"{Apiurl}/user/{UserId}?moduleid={ModuleId}", EntityNames.Module, ModuleId));
        }

        public async Task<Models.HallOfFame> AddHallOfFameAsync(Models.HallOfFame HallOfFame)
        {
            return await PostJsonAsync<Models.HallOfFame>(CreateAuthorizationPolicyUrl($"{Apiurl}", EntityNames.Module, HallOfFame.ModuleId), HallOfFame);
        }

        public async Task<Models.HallOfFame> UpdateHallOfFameAsync(Models.HallOfFame HallOfFame)
        {
            return await PutJsonAsync<Models.HallOfFame>(CreateAuthorizationPolicyUrl($"{Apiurl}/{HallOfFame.HallOfFameId}", EntityNames.Module, HallOfFame.ModuleId), HallOfFame);
        }

        public async Task DeleteHallOfFameAsync(int HallOfFameId, int ModuleId)
        {
            await DeleteAsync(CreateAuthorizationPolicyUrl($"{Apiurl}/{HallOfFameId}/{ModuleId}", EntityNames.Module, ModuleId));
        }

        public async Task ReportAsync(int HallOfFameId, int ModuleId, string reason)
        {
            await PutAsync(CreateAuthorizationPolicyUrl($"{Apiurl}/report/{HallOfFameId}?reason={WebUtility.UrlEncode(reason)}", EntityNames.Module, ModuleId));
        }

        public async Task<List<Models.HallOfFameReport>> GetHallOfFameReportsAsync(int HallOfFameId, int ModuleId)
        {
            return await GetJsonAsync<List<Models.HallOfFameReport>>(CreateAuthorizationPolicyUrl($"{Apiurl}/reports/{HallOfFameId}?moduleid={ModuleId}", EntityNames.Module, ModuleId), Enumerable.Empty<Models.HallOfFameReport>().ToList());
        }

        public async Task DeleteHallOfFameReportAsync(int HallOfFameReportId, int ModuleId)
        {
            await DeleteAsync(CreateAuthorizationPolicyUrl($"{Apiurl}/report/{HallOfFameReportId}/{ModuleId}", EntityNames.Module, ModuleId));
        }

        public async Task<string> UploadFileAsync(System.IO.Stream stream, string fileName, int ModuleId)
        {
            var uri = CreateAuthorizationPolicyUrl($"{Apiurl}/upload", EntityNames.Module, ModuleId);
            using var content = new MultipartFormDataContent();
            var fileContent = new StreamContent(stream);
            fileContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/octet-stream");
            content.Add(fileContent, "file", fileName);

            var response = await GetHttpClient().PostAsync(uri, content);
            if (response.IsSuccessStatusCode)
            {
                var json = await response.Content.ReadAsStringAsync();
                var result = JsonSerializer.Deserialize<Dictionary<string, string>>(json, new JsonSerializerOptions { PropertyNameCaseInsensitive = true });
                return result["url"];
            }
            return null;
        }
    }
}