OMS.NET/Common/LayerData.cs

using System.Text.Json;
using System.Text.Json.Nodes;
using OMS.NET.DbClass;

namespace OMS.NET.Common
{
    public class LayerData
    {
        public string? TemplateId { get; set; }
        public long LayerId { get; set; }
        public bool HasChange { get; set; } = false;
        public string Type { get; set; }
        public JsonNode? Members { get; set; }
        public JsonNode? Structure { get; set; }
        public int Phase { get; set; } = 1;

        public LayerData(long layerId, string type)
        {
            LayerId = layerId;
            Type = type;
        }

        public LayerData(string? templateId, MapLayer layer)
        {
            TemplateId = templateId;
            LayerId = layer.Id;
            Type = layer.Type;
            Members = (layer.Type == "order") ? JsonNode.Parse(layer.Members) : JsonNode.Parse(Util.Base64ToJson(layer.Members));
            Structure = string.IsNullOrEmpty(layer.Structure) ? null : JsonNode.Parse(Util.Base64ToJson(layer.Structure));
            Phase = layer.Phase;
        }

        public void AppendElement(long elementId, string elementType)
        {
            if (Type == "order")
            {
                GlobalArea.Log.Error($"order图层不能添加{elementType}元素");
                return;
            }
            if (Members![elementId.ToString()] == null)
            {
                Members![elementId.ToString()] = elementType;
                Structure!.AsArray().Add(elementId);
                HasChange = true;
                //上传图层到数据库
                MapLayer mapLayer = ConvertToMapLayer();
                MapLayer.Update(mapLayer);
            }
        }

        public void DeleteElement(long elementId)
        {
            if (Type == "order")
            {
                GlobalArea.Log.Error($"order图层不能移除Element元素");
                return;
            }
            Members!.AsObject().Remove(elementId.ToString());
            //移除structure中的值
            for (int i = 0; i < Structure!.AsArray().Count; i++)
            {
                JsonNode node = Structure!.AsArray().ElementAt(i)!;
                if (node.GetValueKind() == JsonValueKind.Number &&
                node.GetValue<long>() == elementId)
                {
                    Structure!.AsArray().RemoveAt(i);
                    break;
                }
            }
            //上传图层到数据库
            MapLayer mapLayer = ConvertToMapLayer();
            MapLayer.Update(mapLayer);
        }

        public MapLayer ConvertToMapLayer()
        {
            return new MapLayer()
            {
                Id = LayerId,
                Type = Type,
                Members = (Type == "order") ? Members!.ToString() : Util.JsonToBase64(Members!.ToString()),
                Structure = (Structure == null) ? "" : Util.JsonToBase64(Structure!.ToString()),
                Phase = Phase
            };
        }
    }
}