iot/projects/IoT.Shared/Controllers/AjaxBaseController.cs

using Cronos;
using Infrastructure.Data;
using Infrastructure.Extensions;
using IoT.Shared.Application.Domain.Entities;
using Jint;
using Jint.Native;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Linq;

namespace IoT.Shared.Areas.IoTCenter.Controlls
{
    public class AjaxBaseController
    {
        protected readonly IServiceProvider _services;

        protected readonly ILogger<AjaxBaseController> _logger;

        protected readonly IHttpContextAccessor _httpContext;

        protected readonly IRepository<IoTGateway> _nodeRepo;

        protected readonly IRepository<IoTProduct> _productRepo;

        protected readonly IRepository<IoTApi> _apiRepo;

        protected readonly IRepository<IoTDevice> _deviceRepo;

        protected readonly IRepository<IoTData> _dataRepo;

        public AjaxBaseController(IServiceProvider services, ILogger<AjaxBaseController> logger)
        {
            this._services = services;
            this._logger = logger;
        }

        public JsonResult GetIoTProduct(Guid? selected)
        {
            using var scope = this._services.CreateScope();
            var repo = scope.ServiceProvider.GetRequiredService<IRepository<IoTProduct>>();
            var list = repo.ReadOnlyTable()
                .Select(o => new { o.Id, o.Name })
                .ToList();
            return new JsonResult(new SelectList(list, "Id", "Name", selected));
        }

        public JsonResult GetIoTApi(Guid parentId, Guid? selected = null)
        {
            using var scope = this._services.CreateScope();
            var repo = scope.ServiceProvider.GetRequiredService<IRepository<IoTApi>>();
            var list = repo.ReadOnlyTable()
                .Where(o => o.ProductId == parentId)
                .Select(o => new { o.Id, o.Name })
                .ToList();
            return new JsonResult(new SelectList(list, "Id", "Name", selected));
        }

        public JsonResult GetIoTGateway(Guid? selected = null)
        {
            using var scope = this._services.CreateScope();
            var repo = scope.ServiceProvider.GetRequiredService<IRepository<IoTGateway>>();
            var list = repo.ReadOnlyTable()
                .Select(o => new { o.Id, Name = $"[{o.Number}]{o.Name}" })
                .ToList();
            return new JsonResult(new SelectList(list, "Id", "Name", selected));
        }

        public JsonResult GetIoTDevice(Guid parentId, Guid? selected = null)
        {
            using var scope = this._services.CreateScope();
            var repo = scope.ServiceProvider.GetRequiredService<IRepository<IoTDevice>>();
            var list = repo.ReadOnlyTable()
                .Where(o => o.IoTGatewayId == parentId)
                .Select(o => new { o.Id, o.Name })
                .ToList();
            return new JsonResult(new SelectList(list, "Id", "Name", selected));
        }
        //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        public MultiSelectList GetNodeMultiSelectList(IEnumerable<Guid> selected)
        {
            if (selected == null)
            {
                selected = new List<Guid>();
            }
            var list = this._nodeRepo.ReadOnlyTable()
                .Select(o => new { o.Id, o.Name })
                .ToList();
            return new MultiSelectList(list, "Id", "Name", selected);
        }

        public SelectList GetDeviceSelectList2(Guid parentId, Guid? selected = null)
        {
            var list = this._deviceRepo.ReadOnlyTable()
                .Where(o => o.IoTGatewayId == parentId && o.Product.Apis.Count() > 0)
                .Select(o => new { o.Id, Name = $"{o.DisplayName}({o.Number})" })
                .ToList();
            return new SelectList(list, "Id", "Name", selected);
        }

        public JsonResult GetDeviceJson2(Guid parentId, Guid? selected)
        {
            return new JsonResult(this.GetDeviceSelectList2(parentId, selected));
        }

        public SelectList GetDataSelectList(Guid parentId, Guid? selected = null)
        {
            var list = this._dataRepo.ReadOnlyTable()
                .Where(o => !o.Hidden && o.DeviceId == parentId)
                .Select(o => new { o.Id, Name = $"{o.Name}[当前数据:{o.Value})(当前状态:{o.Description}]" })
                .ToList();
            return new SelectList(list, "Id", "Name", selected);
        }

        public JsonResult GetdataJson(Guid parentId, Guid? selected)
        {
            return new JsonResult(this.GetDataSelectList(parentId, selected));
        }

        public SelectList GetProductApiSelectList(Guid parentId, Guid? selected = null)
        {
            var list = this._apiRepo.ReadOnlyTable()
                .Where(o => o.ProductId == parentId)
                .Select(o => new { o.Id, o.Name })
                .ToList();
            return new SelectList(list, "Id", "Name", selected);
        }

        public JsonResult GetProductApiJson(Guid parentId, Guid? selected)
        {
            return new JsonResult(this.GetProductApiSelectList(parentId, selected));
        }

#pragma warning disable CA1822 // Mark members as static
        public JsonResult CronValid(string cron)
        {
            try
            {
                CronExpression.Parse(cron, CronFormat.IncludeSeconds);
                return new JsonResult(true);
            }
            catch (Exception ex)
            {
                this._logger.LogError(ex.ToString());
                return new JsonResult(ex.Message);
            }
        }

        public JsonResult ConditionValid(string condition, Guid dataId)
        {
            try
            {
                var data = this._dataRepo.ReadOnlyTable().FirstOrDefault(o => o.Id == dataId);
                var value = data.Value;
                var engine = new Engine().Execute($"function valid(value){{return {condition};}}");
                var result = engine.Invoke("valid", value);
                if (result == JsValue.True || result == JsValue.False)
                {
                    return new JsonResult(true);
                }
                else
                {
                    return new JsonResult($"表达式运算结果无效：{result}");
                }
            }
            catch (Exception ex)
            {
                ex.PrintStack();
                return new JsonResult(ex.Message);
            }
        }

        protected bool IsAjax()
        {
            return this._httpContext.HttpContext.Request.IsAjax();
        }
    }
}