using Microsoft.EntityFrameworkCore;
using PARR.Core.Common.Interfaces;
using PARR.Core.Repositories.Interfaces;
using PARR.Core.Repositories.Interfaces.Job;
using PARR.Core.Services.NextRunServices;
using PARR.Core.Services.Shortcodes;
using PARR.Domain.Common.Rabbit.Messages.TemplateMatching;
using PARR.Domain.Entities;
using PARR.Domain.Entities.Base.History;
using PARR.Domain.Entities.Job;
using PARR.Domain.Enums;
using PARR.TemplateGeneratorWorker.Services;

namespace PARR.TemplateGeneratorWorker
{
    internal class TemplateGenerator : ITemplateGenerator
    {
        private readonly ILogger<TemplateGenerator> logger;
        private readonly ITransformService transformService;
        private readonly IValidatorService validatorService;
        private readonly IJobRepository jobService;
        private readonly IShortcodesService shortcodesService;
        private readonly ITemplateRepository templateService;
        private readonly INextRunService nextRunService;


        public TemplateGenerator(
            ILogger<TemplateGenerator> logger,
            ITransformService transformService,
            IValidatorService validatorService,
            IJobRepository jobService,
            IShortcodesService shortcodesService,
            ITemplateRepository templateService,
            INextRunService nextRunService
            )
        {
            this.logger = logger;
            this.transformService = transformService;
            this.validatorService = validatorService;
            this.jobService = jobService;
            this.shortcodesService = shortcodesService;
            this.templateService = templateService;
            this.nextRunService = nextRunService;
        }


        public async Task GenerateTemplateAsync(string msg)
        {
            logger.LogInformation($"Получили запрос: {msg}");

            var query = transformService.GetModelFromJson<TemplateGeneratorMessage>(msg);

            if (query == null)
            {
                logger.LogError("Не удалось десериализовать запрос: {Message}", msg);
                return;
            }

            // Проверяем всё 
            var unitsInTemplate = query.UnitsInTemplate.Select(s => (s.UnitId, s.UnitFieldValueId)).ToList();
            if (!await validatorService.IsValidAsync(query.JobId, query.UnitId, query.Index, unitsInTemplate))
            {
                logger.LogError($"Параметры запроса не прошли валидацию: JobId={query.JobId}, UnitId={query.UnitId}, Index={query.Index}, UnitsInTemplateCount={query.UnitsInTemplate?.Count ?? 0}");
                return;
            }

            var job = await jobService
                            .Get().AsNoTracking()
                            .Include(t => t.Group)
                            .ThenInclude(g => g!.GroupType)
                            .Include(t => t.Tnk)
                            .FirstOrDefaultAsync(t => t.Id == query.JobId);

            if (job == null)
            {
                logger.LogError("Job не найден: {JobId}", query.JobId);
                return;
            }

            if (job.Group == null)
            {
                logger.LogError("Job {JobId} не привязан к JobGroup", query.JobId);
                return;
            }

            // === Создаём временный Template для подстановки шорткодов ===
            var tempTemplateForShortcodes = new Template
            {
                Id = Guid.Empty, // ещё не создан
                Name = string.Empty, // не используется
                JobId = query.JobId,
                UnitId = query.UnitId,
                Index = query.Index,
                Job = job,
                Unit = null, // ShortcodesService сам догрузит при необходимости
                UnitsInTemplate = query.UnitsInTemplate?.Select(uit => new UnitsInTemplate { UnitId = uit.UnitId, UnitFieldValueId = uit.UnitFieldValueId }).ToList() ?? new List<UnitsInTemplate>()
            };

            var templateName = await shortcodesService.ApplyShortcodesAsync(job.TemplateNameMask!, tempTemplateForShortcodes);

            var responseArea = await shortcodesService.ApplyShortcodesAsync(job.ResponseAreaMask, tempTemplateForShortcodes);
            var workGroup = await shortcodesService.ApplyShortcodesAsync(job.WorkGroupMask, tempTemplateForShortcodes);
            var nextRun = await nextRunService.GetNextRunForNewTemplateAsync(job.GroupId, workGroup, responseArea);

            if (!nextRun.HasValue)
            {
                logger.LogError("Job {JobId}, пытался создать шаблон с именем {templateName}, при получении nextRun вернулся null", query.JobId, templateName);
                return;
            }

            var template = new Template
            {
                Id = Guid.NewGuid(),
                Name = templateName.ToUpper(),
                UnitId = query.UnitId,
                JobId = query.JobId,
                IsActiveTemplate = query.IsActiveTemplate ?? false,
                IsActiveSchedule = query.IsActiveSchedule ?? false,
                NextRun = nextRun.Value,
                StatusTypeId = TemplateStatusTypeEnum.Used,
                InitiatorComment = query.HistoryInitiator?.InitiatorComment,
                InitiatorParrComponentId = query.HistoryInitiator?.InitiatorParrComponentId,
                Index = query.Index,
                UnitsInTemplate = query.UnitsInTemplate?.Select(uit => new UnitsInTemplate { UnitId = uit.UnitId, UnitFieldValueId = uit.UnitFieldValueId }).ToList() ?? new List<UnitsInTemplate>()
            };

            if (await templateService.CreateAsync(template) && await templateService.CommitAsync(new HistoryInitiator { InitiatorComment = "Запрос на генерацию с тестового шаблона", InitiatorParrComponentId = ParrComponentsEnum.TemplateTaskGenerator }))
            {
                logger.LogInformation("Создан шаблон: Id={TemplateId}, Name={Name}, Job={JobId}, Unit={UnitId}, Index={Index}, UnitsInTemplateCount={UnitsCount}",
                    template.Id, template.Name, query.JobId, query.UnitId, query.Index, template.UnitsInTemplate.Count);
            }
            else
            {
                logger.LogError("Ошибка создания шаблона: Name={Name}, JobId={JobId}, UnitId={UnitId}, Index={Index}", templateName, query.JobId, query.UnitId, query.Index);
            }
        }
    }
}