using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using PARR.API.Contracts.V1;
using PARR.API.Contracts.V1.Requests.Queries;
using PARR.API.Contracts.V1.Responses;
using PARR.API.Contracts.V1.Responses.Base;
using PARR.API.Controllers.V1.Base;
using PARR.API.Services.Interfaces;
using PARR.DAL.Contracts;
using PARR.DAL.Services.Interfaces;
using PARR.DAL.TransformServices;

namespace PARR.API.Controllers.V1
{
    /// <summary>
    /// Выдает задания Агенту сервера
    /// </summary>
    public class AgentTaskController : BaseApiController
    {
        private readonly IClientService clientService;
        private readonly ITemplateService templateService;
        private readonly IEsppScheduleTransformService esppScheduleTransformService;
        private readonly ILogger<AgentTaskController> logger;

        public AgentTaskController(
            IClientService clientService,
            ITemplateService templateService,
            IEsppScheduleTransformService esppScheduleTransformService,
            ILogger<AgentTaskController> logger
            )
        {
            this.clientService = clientService;
            this.templateService = templateService;
            this.esppScheduleTransformService = esppScheduleTransformService;
            this.logger = logger;
        }


        /// <summary>
        /// Список заданий агенту по ip-адресу клиента исполнителя
        /// </summary>
        /// <param name="request"></param>
        /// <returns></returns>
        [HttpGet(ApiRoutes.AgentTask.GetByIp)]
        public async Task<IActionResult> GetByClientIp([FromQuery] AgentTaskGetByIpQuery request)
        {
            //ПАРР-ДВС-ПТК__ВРТ-DVGD-SDMI-WEB-01-ДВС__ПРОЧЕЕ(РАБОТЫ)
            //10.99.253.65
            //2023-10-16

            var ip = request.Ip ?? clientService.GetClientIp()?.ToString();

            if (string.IsNullOrEmpty(ip))
                return BadRequest(new Response(false, new List<ErrorModel> { new ErrorModel { Message = "Client IP address is null." } }));

            //var date = request.Date ?? DateTimeOffset.UtcNow;
            var date = DateTimeOffset.UtcNow;

            //Агент получает задания, если `IsAgent = true`, шаблон и расписания активны, и статус синхронизации шаблона и расписания `= Ok`, и `NextRun = сегодня`, так же если у ApplicationInWork есть расписание.

            // С одним IP может быть несколько информационных систем, так что может быть несколько хостов
            var templates = await templateService.Get()
                                    .Include(t => t.RobotConfigurations)
                                    .Include(t => t.ApplicationsInWork)
                                        .ThenInclude(t => t!.EsppSchValues)
                                    .Include(t => t.Host)
                                    .Where(t => t.Host!.IP == ip
                                                    && t.ApplicationsInWork!.IsAgent == true
                                                    && t.IsActiveTemplate == true
                                                    && t.IsActiveSchedule == true
                                                    && t.ApplicationsInWork!.NextRun.DateTime.Date == date.Date.Date
                                                    && t.RobotConfigurations.All(c => c.TaskStatusCode == (int)TaskStatusEnum.Ok)
                                                    && t.ApplicationsInWork.EsppSchValues.Any()
                                    ).ToListAsync();

            if (!templates.Any())
                return NoContent();

            var response = new AgentTaskMinResponse
            {
                Scheduled = new List<AgentTaskMinScheduleResponse>()
            };

            foreach (var template in templates)
            {
                var templateSchedule = await esppScheduleTransformService.GetNextScheduleAsync(template.ApplicationInWorkId, template.ApplicationsInWork!.LastRun ?? template.ApplicationsInWork!.NextRun);

                if (!templateSchedule.Any())
                {
                    logger.LogWarning($"Запросили раписание для агента по LastRun и вернулся пустой список! Такого не должно быть! " +
                        $"ApplicationInWorkId: {template.ApplicationInWorkId}, latRun: {template.ApplicationsInWork!.LastRun}, NextRun: {template.ApplicationsInWork!.NextRun}, ip: {ip}, date: {date}");
                    continue;
                }

                if (string.IsNullOrEmpty(template.ApplicationsInWork.AgentName) && string.IsNullOrEmpty(template.ApplicationsInWork.AgentScript))
                {
                    logger.LogWarning($"Запросили задание для агента с пустыми значениями AgentName && AgentScript. Такого не должно быть! " +
                      $"ApplicationInWorkId: {template.ApplicationInWorkId}, AgentName: {template.ApplicationsInWork.AgentName}, AgentScript: {template.ApplicationsInWork.AgentScript} , ip: {ip}, date: {date}");
                    continue;
                }

                templateSchedule.ForEach(item => response.Scheduled.Add(new AgentTaskMinScheduleResponse
                {
                    Name = template.ApplicationsInWork!.AgentName ?? "",
                    Script = template.ApplicationsInWork!.AgentScript ?? "",
                    StartAt = item,
                    TemplateId = template.Id
                }));
            }

            if (!response.Scheduled.Any())
                return NoContent();

            response.Scheduled = response.Scheduled.OrderBy(t => t.StartAt).ToList();

            return Ok(response);
        }

    }
}