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

namespace OMS.NET.Instructs
{
    public class AddElementBroadcastInstruct : BroadcastInstuct
    {
        public AddElementBroadcastInstruct()
        {
            Type = "broadcast";
        }

        public override Task Handler(string wsid)
        {
            return Task.Run(() =>
            {
                if (GlobalArea.LoginCheckByID(wsid))
                {
                    //从Data中解析数据，收到的是json文本类型
                    if (Data?.GetType() == typeof(JsonElement))
                    {
                        try
                        {
                            long id = Data.GetProperty("id").GetInt64();
                            string type = Data.GetProperty("type").GetString();
                            string points = Data.GetProperty("points").GetString();
                            string point = Data.GetProperty("point").GetString();
                            string? color = Data.GetProperty("color").GetString();
                            int? width = Data.GetProperty("width").GetInt32();
                            string? childRelations = Data.GetProperty("childRelations").GetString();
                            string? fatherRelations = Data.GetProperty("fatherRelations").GetString();
                            string? childNodes = Data.GetProperty("childNodes").GetString();
                            string? fatherNode = Data.GetProperty("fatherNode").GetString();
                            string? details = Data.GetProperty("details").GetString();
                            string? custom = Data.GetProperty("custom").GetString();
                            //validations todo 
                            //假设所有数据均合法
                            MapData mapData = new()
                            {
                                Type = type,
                                Points = Util.JsonToBase64(points),
                                Point = Util.JsonToBase64(point),
                                Color = color,
                                Width = width,
                                ChildRelations = childRelations,
                                FatherRelations = fatherRelations,
                                ChildNodes = childNodes,
                                FatherNode = fatherNode,
                                Details = Util.JsonToBase64(details),
                                Custom = Util.JsonToBase64(custom)
                            };
                            //保存点到数据库
                            MapData.Add(mapData);
                            //获取图层id
                            if (Data.GetProperty("custom").TryGetProperty("tmpId", out JsonElement tmpIdNode))
                            {
                                string tmpId = tmpIdNode.GetString() ?? throw new Exception("tmpId不能为空");
                                LayerData? layer = GlobalArea.GetLayerDataByTemplateId(tmpId);
                                if (layer != null && mapData.Id != -1)
                                {
                                    layer.AppendElement(mapData.Id, mapData.Type);//包括数据库操作
                                    //准备回复广播
                                    string conveyor = GlobalArea.GetLoginEmailByID(wsid);
                                    string time = GlobalArea.GetCurrentTime();
                                    ResponseOrBroadcastInstructs.Add(new BroadcastInstuct()
                                    {
                                        IsBroadcast = true,
                                        Class = this.Class,
                                        Conveyor = conveyor,
                                        Time = time,
                                        Data = mapData,
                                    });
                                    ResponseOrBroadcastInstructs.Add(new BroadcastInstuct()
                                    {
                                        IsBroadcast = true,
                                        Class = "updateLayerData",
                                        Conveyor = conveyor,
                                        Time = time,
                                        Data = new
                                        {
                                            id = layer.LayerId,
                                            members = layer.Members!.ToString(),
                                            structure = layer.Structure!.ToString(),
                                        }
                                    });
                                    ResponseOrBroadcastInstructs.Add(new SendErrorInstuct()
                                    {
                                        IsResponse = true,
                                        Class = "upload",
                                        Conveyor = conveyor,
                                        Time = time,
                                        Data = new Dictionary<string, object>()
                                        {
                                            {"vid",id},
                                            {"rid",mapData.Id}
                                        },

                                    });

                                }

                            }
                            else
                            {
                                throw new Exception("未找到 tmpId");
                            }

                        }
                        catch (Exception ex)
                        {
                            Console.WriteLine(ex.Message);
                            ResponseOrBroadcastInstructs.Add(new SendErrorInstuct()
                            {
                                IsResponse = true,
                                Class = "upload",
                                Conveyor = GlobalArea.GetLoginEmailByID(wsid),
                                Time = GlobalArea.GetCurrentTime(),
                                Data = new
                                {
                                    source = Data,
                                    message = ex.Message,
                                },

                            });
                        }
                    }
                }
            });
        }
    }
}