using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using System.Text;
using Newtonsoft.Json;
using LCU.Api.Internal.ArchiverApi.Configuration;
using LCU.Library.Internal.ArchiverApi.Utilities;
using LCU.Library.Internal.ArchiverApiModel.Models;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels.CoreRequests;
using LCU.Library.Internal.CoreApiWrapperModel.CoreModels.ApplicationHistories;
namespace LCU.Api.Internal.ArchiverApi.Services;

public class CoreApiWrapperService : ICoreApiWrapperService
{
    private readonly ArchiverApiConfig _ArchiverApiConfig;

    public CoreApiWrapperService(ArchiverApiConfig ArchiverApiConfig)
    {
        _ArchiverApiConfig = ArchiverApiConfig;
    }

    public async Task<IEnumerable<ApplicationHistory>> GetApplicationHistories(ArchiveRequest archiveRequest)
    {
        try
        {
            var applicationHistoryRequest = new ApplicationHistoryRequest()
            {
                ApplicationNumbers = archiveRequest.ArchiveIdentifiers,
                EffectiveDate = archiveRequest.EffectiveDate.ToString()
            };

            var url = SetUpUrl(applicationHistoryRequest);
            var client = HttpUtilities.GetClient(url);
            var response = await client.GetAsync(url);
            response.EnsureSuccessStatusCode();
            if (!response.IsSuccessStatusCode)
            {
                throw new Exception($"Issue retrieving Application History from Core Api Wrapper. " +
                                    $"Request: {JsonConvert.SerializeObject(applicationHistoryRequest)}");
            }

            var stringResponse = await response.Content.ReadAsStringAsync();
            var applicationHistories = JsonConvert.DeserializeObject<List<ApplicationHistory>>(stringResponse);
            return applicationHistories;
        }
        catch (Exception exception)
        {
            throw new Exception($"Failure to get application histories. Exception Message: {exception.Message}");
        }
    }

    public string SetUpUrl(ApplicationHistoryRequest applicationHistoryRequest)
    {
        var endpointBuilder = new StringBuilder();
        endpointBuilder.Append(_ArchiverApiConfig.CoreApiWrapperGetApplicationHistory);

        var propertyCounter = 0;
        var propertyName = nameof(applicationHistoryRequest.ApplicationNumbers);
        HttpUtilities.AppendListOfValuesToEndpoint(endpointBuilder, propertyCounter, applicationHistoryRequest.ApplicationNumbers, propertyName);
        endpointBuilder.Append($"&{nameof(applicationHistoryRequest.EffectiveDate)}={applicationHistoryRequest.EffectiveDate}");
        return endpointBuilder.ToString();
    }
}