using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;

using Crowdin.Plugin.Helpers.PluginLocalization;
using Crowdin.Plugin.Models;
using Crowdin.Plugin.Server_API.Helpers;
using Crowdin.Plugin.Server_API.Models;
using Crowdin.Plugin.Server_API.Models.SourceStrings;

#nullable enable

namespace Crowdin.Plugin.Server_API.Services
{
    public class SourceStringsApiService : BaseApiService
    {
        private static string BaseUri => SettingsHelper.GetUri("strings", SettingsHelper.GetProjectId());

        private readonly CrowdinHttpClient _httpClient = CrowdinHttpClient.Default;

        public Task<List<SourceString>> ListStrings(
            string? croQl = null,
            int? labelId = null,
            int limit = 500,
            int? branchId = null,
            CancellationToken ct = default)
        {
            var url = BaseUri;

            if (!string.IsNullOrWhiteSpace(croQl))
            {
                url += url.Contains('?') ? $"&croql={croQl}" : $"?croql={croQl}";
            }

            if (labelId.HasValue)
            {
                url += url.Contains('?') ? $"&labelIds={labelId.Value}" : $"?labelIds={labelId.Value}";
            }

            if (branchId.HasValue)
            {
                url += url.Contains('?') ? $"&branchId={branchId.Value}" : $"?branchId={branchId.Value}";
            }

            return _httpClient.ListAllAsync<SourceString>(url, limit, ct);
        }

        public async Task<OperationResult<StringUploadResponseModel>> UploadStrings(
            UploadStringsRequest payload,
            CancellationToken ct)
        {
            if (SettingsHelper.GetProjectType() is not ProjectType.StringBased)
            {
                return OperationResult<StringUploadResponseModel>
                    .CreateError(LocalizationHelper
                        .GetLocalStringByKey(LocalKeys.error_project_not_string_based));
            }

            StringUploadResponseModel response =
                await _httpClient.PostAsync<StringUploadResponseModel>($"{BaseUri}/uploads", payload, ct);

            return OperationResult<StringUploadResponseModel>.CreateSuccess(response);
        }

        public async Task<OperationResult<StringUploadResponseModel>> CheckUploadStringsStatus(
            string uploadId,
            CancellationToken ct)
        {
            if (SettingsHelper.GetProjectType() is not ProjectType.StringBased)
            {
                return OperationResult<StringUploadResponseModel>
                    .CreateError(LocalizationHelper
                        .GetLocalStringByKey(LocalKeys.error_project_not_string_based));
            }

            StringUploadResponseModel response =
                await _httpClient.GetAsync<StringUploadResponseModel>($"{BaseUri}/uploads/{uploadId}", ct);

            return OperationResult<StringUploadResponseModel>.CreateSuccess(response);
        }
    }
}