using System;
using Autodesk.AutoCAD.Geometry;
using CadParamPluging.Common;
using CadParamPluging.Domain.Models;

namespace CadParamPluging.Cad
{
    public sealed class RingRawRollingGenerator : ITemplateDrawingGenerator
    {
        public static readonly string Key = TemplateKeyBuilder.Build("毛料态", "轧制", "环形", "无");
        private const string MachinedStatus = "车加工";

        public string TemplateKey => Key;

        public FeatureDrivenDrawer.ExpectedDrawingSize CalculateExpectedSize(ParamBag bag, TemplateParams templateParams)
        {
            var workingBag = CloneBagWithMachinedStatus(bag, templateParams);
            return FeatureDrivenDrawer.CalculateExpectedSize(workingBag, templateParams?.SheetSize);
        }

        public void Draw(CadContext ctx, ParamBag bag, TemplateParams templateParams, Point3d center, double scaleFactor)
        {
            if (ctx == null)
            {
                throw new ArgumentNullException(nameof(ctx));
            }

            if (templateParams == null)
            {
                throw new ArgumentNullException(nameof(templateParams));
            }

            var workingBag = CloneBagWithMachinedStatus(bag, templateParams);
            var drawParams = CreateMachinedTemplateParams(templateParams);

            FeatureDrivenDrawer.DrawRingRollingWithUnspecifiedFillet(
                ctx,
                workingBag,
                drawParams.ProjectType,
                drawParams.SheetSize,
                drawParams.Scale,
                drawParams.DrawingType,
                center,
                scaleFactor);
        }

        private static ParamBag CloneBagWithMachinedStatus(ParamBag source, TemplateParams templateParams)
        {
            var clone = new ParamBag();
            if (source?.Items != null)
            {
                foreach (var item in source.Items)
                {
                    if (item == null)
                    {
                        continue;
                    }

                    clone.Items.Add(new ParamValue { Key = item.Key, Value = item.Value });
                }
            }

            clone.Set("DeliveryStatus", MachinedStatus);
            if (!string.IsNullOrWhiteSpace(templateParams?.DrawingType)
                && string.IsNullOrWhiteSpace(clone.GetString("ProcessMethod")))
            {
                clone.Set("ProcessMethod", templateParams.DrawingType);
            }

            return clone;
        }

        private static TemplateParams CreateMachinedTemplateParams(TemplateParams templateParams)
        {
            return new TemplateParams
            {
                ProjectType = MachinedStatus,
                DrawingType = templateParams?.DrawingType,
                SheetSize = templateParams?.SheetSize,
                Scale = templateParams?.Scale
            };
        }
    }
}