using Microsoft.Extensions.Logging;
using Quartz;
using System.Threading.Tasks;
using Newtonsoft.Json;
using System.Text;
using birzha_contracts.Managers;
using birzha_contracts.Models;
using System.Collections.Generic;

namespace birzha_contracts.Jobs{
    [DisallowConcurrentExecution]
    public class UpdateJob : IJob
    {
        
        private readonly ILogger<UpdateJob> _logger;
        private readonly IServiceProvider _provider;
        private static HttpClient _client = new HttpClient();

        

        public UpdateJob(ILogger<UpdateJob> logger, IServiceProvider provider)
        {
            _logger = logger;
            _provider = provider;
        }

        private async Task<string> GetData(HttpRequestMessage request)
        {
            var response = await _client.SendAsync(request);
            response.EnsureSuccessStatusCode();
            return await response.Content.ReadAsStringAsync();
        }

        public async Task Execute(IJobExecutionContext context)
        {
            var tasks = new List<Task<string>>();
            using(var scope = _provider.CreateScope())
            {
                var firstTimeDB = Convert.ToBoolean(ConfigManager.AppSetting["FirstTimeDB"]);
                var dbContext = scope.ServiceProvider.GetService<MvcContractContext>();
                var contracts = new List<ContractResolution>();
                var domain = Convert.ToString(ConfigManager.AppSetting["Domain"]);
                _client.BaseAddress = new Uri(domain);
                var api = ConfigManager.AppSetting["API_contract_resolution"];
                
                if(firstTimeDB){
                    var dateFrom = Convert.ToDateTime(ConfigManager.AppSetting["FirstTimeDBFillDateFrom"]);
                    contracts = dbContext!.ContractResolution.Where(x => x.ModifiedDate >= dateFrom).OrderByDescending(d => d.ModifiedDate).ToList();
                    while(contracts.Any()){
                        _logger.LogInformation("Sending request: Contract-Resolution");
                        var chunk = contracts.Take(500).ToList();
                        contracts = contracts.Skip(500).ToList();

                        var data = JsonConvert.SerializeObject(chunk);

                        var content = new StringContent(data.ToString(), Encoding.UTF8, "application/json");

                        var request = new HttpRequestMessage(HttpMethod.Post, $""+api+"");
                        request.Content = content;

                        tasks.Add(GetData(request));
                        
                        _logger.LogInformation("Sending resolution success!");
                    }
                }
                else{
                    var minutesAgo = Convert.ToDouble(ConfigManager.AppSetting["DataMinutesAgo"]);
                    minutesAgo = minutesAgo * (-1);
                    contracts = dbContext!.ContractResolution.Where(x => x.ModifiedDate > DateTime.Now.AddMinutes(minutesAgo)).OrderByDescending(d => d.ModifiedDate).ToList();
                    while(contracts.Any()){
                        _logger.LogInformation("Sending request: Contract-Resolution");
                        var chunk = contracts.Take(500).ToList();
                        contracts = contracts.Skip(500).ToList();

                        var data = JsonConvert.SerializeObject(chunk);

                        var content = new StringContent(data.ToString(), Encoding.UTF8, "application/json");

                        var request = new HttpRequestMessage(HttpMethod.Post, $""+api+"");
                        request.Content = content;

                        tasks.Add(GetData(request));

                        _logger.LogInformation("Sending resolution success!");
                    }
                }
            }

            _logger.LogInformation("Success!");
            await Task.WhenAll(tasks);
        }
    }
}