iot/projects/IoT.Shared/Areas/Admin/Controlls/DataController.cs

using Application.Domain.Entities;
using Application.Models;
using Infrastructure.Data;
using Infrastructure.Extensions;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using System;
using System.Linq;
using Vibrant.InfluxDB.Client;
using Vibrant.InfluxDB.Client.Rows;

namespace IoT.Shared.Areas.Admin.Controlls
{
    [Authorize]
    [Area(nameof(Admin))]
    public class DataController : SharedController<Data, SearchDataModel, EditDataModel, EditDataModel>
    {
        private readonly IConfiguration _configuration;
        private readonly IRepository<Node> _nodeRepo;
        private readonly AjaxController _ajax;

        public DataController(IConfiguration configuration, IRepository<Node> nodeRepo, IRepository<Data> repo, AjaxController ajax, IServiceProvider sp) : base(repo, sp)
        {
            this._configuration = configuration;
            this._nodeRepo = nodeRepo;
            this._ajax = ajax;
        }

        public override IQueryable<Data> Include(IQueryable<Data> query)
        {
            return query.Include(o => o.Device).ThenInclude(o => o.Node);
        }

        public override IQueryable<Data> Query(SearchDataModel model, IQueryable<Data> query)
        {
            ViewData.SelectList(o => model.NodeId, () => this._ajax.GetNodeSelectList(model.NodeId));
            ViewData.SelectList(o => model.DeviceId, () => this._ajax.GetDeviceSelectList(model.NodeId.Value, model.DeviceId), model.NodeId.HasValue);
            return query.WhereIf(model.NodeId.HasValue, o => o.Device.NodeId == model.NodeId.Value)
                .WhereIf(model.DeviceId.HasValue, o => o.DeviceId == model.DeviceId.Value)
                .WhereIf(!string.IsNullOrEmpty(model.Keyword), o => o.Name.Contains(model.Keyword));
        }

        public override void ToDisplayModel(Data entity, EditDataModel model)
        {
            model.NodeId = entity?.Device?.NodeId;
            ViewData.Add(model.DeviceId, entity.Device.Name);
            ViewData.Add(model.NodeId, entity.Device.Node.Name);
        }

        public override void ToEditModel(Data entity, EditDataModel model)
        {
            if (entity != null)
            {
                this.ToDisplayModel(entity, model);
            }
            ViewData.SelectList(o => model.NodeId, () => this._ajax.GetNodeSelectList(model.NodeId));
            ViewData.SelectList(o => model.DeviceId, () => this._ajax.GetDeviceSelectList(model.NodeId.Value, model.DeviceId), model.NodeId.HasValue);
        }

        public override string GetNodeNumber(EditDataModel model)
        {
            return this._nodeRepo.ReadOnlyTable().Where(o => o.Id == model.NodeId).Select(o => o.Number).FirstOrDefault();
        }

        public IActionResult DataHistory(Guid id, SearchDataHistoryModel model)
        {
            var data = this._repo.ReadOnlyTable()
                .Include(o => o.Device).ThenInclude(o => o.Node)
                .Include(o => o.Device).ThenInclude(o => o.Product)
                .FirstOrDefault(o => o.Id == id);
            var url = this._configuration["influxdb:url"];
            var usr = this._configuration["influxdb:usr"];
            var pwd = this._configuration["influxdb:pwd"];
            var dbName = "iot";
            var measurementName = "data";
            using (var client = new InfluxClient(new Uri(url), usr, pwd))
            {
                var parameters = new
                {
                    start = model.Start,
                    end = model.End.AddDays(1)
                };
                var query = $"from {measurementName} where time>=$start and time<$end and DeviceNumber = '{data.Device.Number}'";

                var dataQuery = $"select {data.Key} {query} limit {model.PageSize} offset {(model.PageIndex - 1) * model.PageSize}";
                var result = client.ReadAsync<DynamicInfluxRow>(dbName, dataQuery, parameters: parameters).Result;
                var rows = result.Results.FirstOrDefault()?
                    .Series.FirstOrDefault()?
                    .Rows;
                model.List.AddRange(rows.Select(o => new DisplayDataHistoryModel
                {
                    DeviceName = data.Device.DisplayName,
                    DeviceNumber = data.Device.Number,
                    Name = data.Name,
                    Unit = data.Unit,
                    Value = o.GetField(data.Key).ToString(),
                    Date = o.Timestamp
                }));

                var countQuery = $"select count({data.Key}) {query}";
                var countResult = client.ReadAsync<DynamicInfluxRow>(dbName, countQuery, parameters: parameters).Result;
                model.TotalCount = Convert.ToInt32(countResult.Results.FirstOrDefault().Series.FirstOrDefault().Rows.FirstOrDefault().GetField("count"));

                ViewBag.HtmlTitle = data.Name;
                return View(model);
            }
        }
    }
}