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

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