using Microsoft.Extensions.Logging;
using PARR.EsppApi.Models;
using PARR.EsppApi.Models.Query;
using PARR.EsppApi.Settings;

namespace PARR.EsppApi
{
    internal class EsppApiService : IEsppApiService
    {
        private readonly ILogger<EsppApiService> logger;
        private readonly EsppOrderSettings esppOrderSettings;
        private readonly EsppHttpService esppHttpService;

        public EsppApiService(ILogger<EsppApiService> logger, EsppOrderSettings esppOrderSettings, EsppHttpService esppHttpService)
        {
            this.logger = logger;
            this.esppOrderSettings = esppOrderSettings;
            this.esppHttpService = esppHttpService;
        }

        public async Task<EsppResultBase<IEnumerable<EsppOrder>>> FindOrdersAsync(FindOrdersQuery query)
        {
            DateTime? generateDateStartWOTimeZone = query.GenerateDateStart.HasValue ? query.GenerateDateStart.Value.AddHours(esppOrderSettings.EsppUserTimeZone) : null;
            DateTime? generateDateEndWOTimeZone = query.GenerateDateEnd.HasValue ? query.GenerateDateEnd.Value.AddHours(esppOrderSettings.EsppUserTimeZone) : null;

            var conditions = new List<string>();

            if (!string.IsNullOrEmpty(query.DescriptionContains))
                conditions.Add($"description like \"*{query.DescriptionContains}*\"");
            //if (!string.IsNullOrEmpty(query.TemplateNameContains))
            //    conditions.Add($"templateName like \"*{query.TemplateNameContains}*\"");
            
            if (generateDateStartWOTimeZone.HasValue)
                conditions.Add($"open.time>='{generateDateStartWOTimeZone.Value.Day}/{generateDateStartWOTimeZone.Value.Month}/{generateDateStartWOTimeZone.Value.Year}" +
                    $" {generateDateStartWOTimeZone.Value.Hour}:{generateDateStartWOTimeZone.Value.Minute}:{generateDateStartWOTimeZone.Value.Second}'");
            
            if (generateDateEndWOTimeZone.HasValue)
                conditions.Add($"open.time<='{generateDateEndWOTimeZone.Value.Day}/{generateDateEndWOTimeZone.Value.Month}/{generateDateEndWOTimeZone.Value.Year}" +
                    $" {generateDateEndWOTimeZone.Value.Hour}:{generateDateEndWOTimeZone.Value.Minute}:{generateDateEndWOTimeZone.Value.Second}'");

            if (conditions.Count < 1)
            {
                logger.LogDebug("Пришёл пустой запрос в EsppHttpService.FindOrdersAsync");
                return new EsppResultBase<IEnumerable<EsppOrder>>(null, false);
            }

            var result = await esppHttpService.SendAsync<IEnumerable<EsppOrder>>($"<ROOT operation=\"GetTaskList\" returnFormat=\"json\">{{\"VIEW_QUERY\":\"{string.Join(" and ", conditions)}\"}}</ROOT>");

            return result;

        }
    }
}