using System;
using System.Collections.Generic;
using System.Linq;
using BLL;
using System.Data;


namespace FineUIPro.Web.JDGL.SGManPower
{
    public partial class ManPowerPlanChart : PageBase
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                UnitId = Request.Params["UnitId"];
                StartTime = Request.Params["StartTime"];
                EndTime = Request.Params["EndTime"];
                UnitWorkId = Request.Params["UnitWorkId"];
                WorkPostId = Request.Params["WorkPostId"];
                Version = Request.Params["Version"];
                // 初始化图表数据
                InitializeChartData();
            }
        }

        public string UnitId
        {
            get => (string)ViewState["UnitId"];
            set => ViewState["UnitId"] = value;
        }

        public string StartTime
        {
            get => (string)ViewState["StartTime"];
            set => ViewState["StartTime"] = value;
        }

        public string EndTime
        {
            get => (string)ViewState["EndTime"];
            set => ViewState["EndTime"] = value;
        }

        public string UnitWorkId
        {
            get => (string)ViewState["UnitWorkId"];
            set => ViewState["UnitWorkId"] = value;
        }

        public string WorkPostId
        {
            get => (string)ViewState["WorkPostId"];
            set => ViewState["WorkPostId"] = value;
        }

        public string Version
        {
            get => (string)ViewState["Version"];
            set => ViewState["Version"] = value;
        }

        private void InitializeChartData()
        {
            // 检查必要参数
            if (string.IsNullOrEmpty(StartTime) || string.IsNullOrEmpty(EndTime))
            {
                ShowNotify("缺少必要的参数，无法生成图表", MessageBoxIcon.Warning);
                return;
            }

            try
            {
                DateTime startDate = Convert.ToDateTime(StartTime);
                DateTime endDate = Convert.ToDateTime(EndTime);

                // 获取人力计划数据
                var manpowerQuery = from x in Funs.DB.JDGL_SGManPower
                    where x.ProjectId == this.CurrUser.LoginProjectId && x.PlanDate >= startDate && x.PlanDate <= endDate
                    select x;

                if (UnitId != Const._Null)
                {
                    manpowerQuery = manpowerQuery.Where(x => x.UnitId == UnitId);
                }
                
                // 添加装置筛选条件
                if (!string.IsNullOrEmpty(UnitWorkId))
                {
                    manpowerQuery = manpowerQuery.Where(x => x.UnitWorkId == UnitWorkId);
                }

                // 添加岗位筛选条件
                if (!string.IsNullOrEmpty(WorkPostId))
                {
                    manpowerQuery = manpowerQuery.Where(x => x.WorkPostId == WorkPostId);
                }

                // 添加版本筛选条件
                if (!string.IsNullOrEmpty(Version))
                {
                    manpowerQuery = manpowerQuery.Where(x => x.Version == Version);
                }

                var manpowerPlans = manpowerQuery.ToList();

                // 按日期汇总人数
                var chartData = manpowerPlans
                    .Where(x => x.PlanDate.HasValue && x.Quantity.HasValue)
                    .GroupBy(x => x.PlanDate.Value.Date)
                    .Select(g => new
                    {
                        Date = g.Key,
                        TotalQuantity = g.Sum(x => x.Quantity.Value)
                    })
                    .OrderBy(x => x.Date)
                    .ToList();

                // 如果没有数据，显示提示信息
                if (chartData.Count == 0)
                {
                    ShowNotify("在指定时间范围内没有找到人力计划数据", MessageBoxIcon.Warning);
                    return;
                }

                // 构建图表数据源
                DataTable dt = new DataTable();
                dt.Columns.Add("日期", typeof(string));
                dt.Columns.Add("人员数量", typeof(int));

                foreach (var item in chartData)
                {
                    DataRow row = dt.NewRow();
                    row["日期"] = item.Date.ToString("MM-dd");
                    row["人员数量"] = item.TotalQuantity;
                    dt.Rows.Add(row);
                }

                // 创建图表数据对象
                Model.DataSourceChart dataSourceChart = new Model.DataSourceChart
                {
                    Title = "总人力需求计划",
                    ChartType = System.Web.UI.DataVisualization.Charting.SeriesChartType.Column,
                    Width = 1000,
                    Height = 500,
                    IsNotEnable3D = false
                };

                // 创建数据系列
                Model.DataSourceTeam dataSourceTeam = new Model.DataSourceTeam
                {
                    DataPointName = "人员数量",
                    DataSourcePoints = new List<Model.DataSourcePoint>() // 确保初始化
                };

                // 添加数据点
                foreach (DataRow row in dt.Rows)
                {
                    Model.DataSourcePoint point = new Model.DataSourcePoint
                    {
                        PointText = row["日期"].ToString(),
                        PointValue = row["人员数量"].ToString()
                    };
                    // 确保DataSourcePoints不为空后再添加
                    if (dataSourceTeam.DataSourcePoints != null)
                    {
                        dataSourceTeam.DataSourcePoints.Add(point);
                    }
                }

                // 确保DataSourceTeams不为空后再添加
                if (dataSourceChart.DataSourceTeams != null)
                {
                    dataSourceChart.DataSourceTeams.Add(dataSourceTeam);
                }
                else
                {
                    // 如果DataSourceTeams为空，创建一个新的列表
                    dataSourceChart.DataSourceTeams = new List<Model.DataSourceTeam> { dataSourceTeam };
                }

                // 生成图表
                Chart1.CreateChart(dataSourceChart);
            }
            catch (Exception ex)
            {
                ShowNotify($"生成图表时发生错误: {ex.Message}", MessageBoxIcon.Error);
            }
        }
    }
}