/* ==============================================================================
 * 功能描述：PhaseUtil  
 * 创 建 者：Garrett
 * 创建日期：2019/10/18 16:25:14
 * ==============================================================================*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Autodesk.Revit.DB;
using Autodesk.Revit.DB.Mechanical;
using SAGA.RevitUtils;
using SAGA.RevitUtils.Extends;

namespace Saga.PlugIn.ModelCheck
{
    /// <summary>
    /// PhaseUtil
    /// </summary>
    public static class PhaseUtil
    {
        public readonly static string UseablePhaseName = "阶段1";

        /// <summary>
        /// 获取系统使用的阶段Id
        /// </summary>
        /// <param name="doc"></param>
        /// <returns></returns>
        public static ElementId GetUsePhaseId(this Document doc)
        {
            var phase = GetUsePhase(doc);
            if (phase == null)
            {
                return ElementId.InvalidElementId;
            }
            return phase.Id;
        }
        /// <summary>
        /// 获取系统使用的阶段
        /// </summary>
        /// <param name="doc"></param>
        /// <returns></returns>
        public static Phase GetUsePhase(this Document doc)
        {
            var elements = doc.GetElements<Phase>(BuiltInCategory.OST_Phases);
            foreach (var element in elements)
            {
                var tempName = element.Name.Replace(" ", "").Trim();
                if (UseablePhaseName == tempName)
                {
                    return element;
                }
            }
            return null;
        }

        /// <summary>
        /// 获取视图的阶段Id
        /// </summary>
        /// <param name="view"></param>
        /// <returns></returns>
        public static ElementId GetUsePhaseId(this View view)
        {
            var doc = view.Document;
            //Parameter para = view.GetParameter(BuiltInParameter.VIEW_PHASE);
            //ElementId phaseId = para.AsElementId();
            return GetUsePhaseId(doc); ;
        }
        /// <summary>
        /// 获取视图使用的阶段
        /// </summary>
        /// <param name="view"></param>
        /// <returns></returns>
        public static Phase GetUsePhase(this View view)
        {
            var doc = view.Document;
            return doc.GetElement(GetUsePhaseId(view)) as Phase;
        }

        public static void ValidateUsePhase(Phase phase)
        {
            if (phase == null)
            {
                throw new Exception("操纵视图不存在，名称为“阶段1”的选项");
            }
        }

        public static ElementId GetCurrentPhaseId(this Space space)
        {
            return space.GetParameterElementId(BuiltInParameter.ROOM_PHASE_ID) ?? ElementId.InvalidElementId;
        }
        /// <summary>
        /// 获取系统指定阶段下的空间模型
        /// </summary>
        /// <param name="doc"></param>
        /// <returns></returns>
        public static List<Space> GetUseSpaces(this Document doc)
        {
            var useId = GetUsePhaseId(doc);
            if (useId == null || useId == ElementId.InvalidElementId)
            {
                return new List<Space>();
            }
            var spaces = doc.GetElements<SpatialElement>(BuiltInCategory.OST_MEPSpaces).OfType<Space>();
            return spaces.Where(s => s.GetCurrentPhaseId() == useId && s.Area > 0.001).ToList();
        }
        /// <summary>
        /// 获取系统指定阶段下的空间模型
        /// </summary>
        /// <param name="collector"></param>
        /// <returns></returns>
        public static List<Space> GetUseSpaces(this FilteredElementCollector collector)
        {
            var sourceSpaces = collector.Clone().FilterElements<SpatialElement>(BuiltInCategory.OST_MEPSpaces).OfType<Space>().ToList();
            if (!sourceSpaces.Any())
            {
                return sourceSpaces;
            }
            var doc = sourceSpaces[0].Document;
            var useId = GetUsePhaseId(doc);
            if (useId == null || useId == ElementId.InvalidElementId)
            {
                return new List<Space>();
            }

            return
                sourceSpaces.Where(s => s.IsSpace())
                    .ToList(); // sourceSpaces.Where(s => s.GetCurrentPhaseId() == useId && s.Area > 0.001).ToList();
        }
        /// <summary>
        /// 判断是否是阶段1的空间
        /// </summary>
        /// <param name="space"></param>
        /// <returns></returns>
        public static bool IsPhase1Space(this Space space)
        {
            var doc = space.Document;
            var useId = GetUsePhaseId(doc);
            return space.GetCurrentPhaseId() == useId;
        }
        /// <summary>
        /// 空间标高是否是当前使用视图标高
        /// </summary>
        /// <param name="space"></param>
        /// <returns></returns>
        public static bool IsViewLevel(this Space space)
        {
            var doc = space.Document;
            var useViewId = doc.GetUseView();
            if (useViewId == null)
            {
                return false;
            }
            return space.Level?.Id == useViewId.GenLevel?.Id;
        }
    }
}