using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Xml;

namespace MyCinema
{
    public partial class MainForm : Form
    {
        Cinema cinema;
        Dictionary<string, Label> labels = new Dictionary<string, Label>();
        int ticket = 0;
        string key = null;
        
        public MainForm()
        {
            InitializeComponent();
        }

        private void MainForm_Load(object sender, EventArgs e)
        {
            this.lblActor.Text = "";
            this.lblDirector.Text = "";
            this.lblMovieName.Text = "";
            this.lblPrice.Text = "";
            this.lblTime.Text = "";
            this.lblType.Text = "";
            this.lblCalcPrice.Text = "";
            this.txtCustomer.Enabled = false;
            this.cmbDisCount.Enabled = false;
            this.rdoNormal.Checked = true;

            cinema = new Cinema();
            InitSeats(7, 5, tpCinema);
            //初始化座位

            cinema.Load();
        }

        /// <summary>
        /// 初始化座位
        /// </summary>
        /// <param name="seatRow">行數</param>
        /// <param name="seatLine">列數</param>
        /// <param name="tb"></param>
        private void InitSeats(int seatRow,int seatLine,TabPage tb)
        {
            Label label;
            Seat seat;
            for (int i = 0; i < seatRow; i++)
            {
                for (int j = 0; j < seatLine; j++)
                {
                    label = new Label();
                    label.BackColor = Color.Yellow;
                    label.AutoSize = false;
                    label.Font = new System.Drawing.Font("宋體", 14.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,((byte)(134)));
                    label.Location = new System.Drawing.Point(59, 60);
                    label.Name = "lbl" + (j + 1).ToString() + "_" + (i + 1).ToString();
                    label.Size = new System.Drawing.Size(50, 25);
                    //設置座位號
                    label.Text = (j + 1).ToString() + "-" + (i + 1).ToString();
                    label.TextAlign = ContentAlignment.MiddleCenter;
                    label.Location = new Point(60 + (i * 90), 60 + (j * 60));
                    //所有的標簽都綁定到同一事件
                    label.Click += new System.EventHandler(lblSeat_Click);
                    tb.Controls.Add(label);
                    labels.Add(label.Text, label);
                    //實例化一個座位
                    seat = new Seat((j + 1).ToString() + "-" + (i + 1).ToString(), Color.Yellow);
                    //保存的座位集合
                    cinema.Seats.Add(seat.SeatNum, seat);
                }
            }
        }

        private void tsmiMovies_Click(object sender, EventArgs e)
        {
            //判斷放映列表是否為空
            if (cinema.Schedule.Items.Count == 0)
            {
                cinema.Schedule.LoadItems();
            }
            InitTreeView();
        }

        private void tsmiNew_Click(object sender, EventArgs e)
        {
            cinema.Schedule.LoadItems();
            cinema.SoldTickets.Clear();
            InitTreeView();
        } 
        /// <summary>
        /// 初始化TreeView控件
        /// </summary>
        private void InitTreeView()
        {
            tvMovies.BeginUpdate();
            tvMovies.Nodes.Clear();

            string movieName = null;
            TreeNode movieNode = null;
            foreach (ScheduleItem item in cinema.Schedule.Items.Values)
            {
                if (movieName != item.Movie.MovieName)
                {
                    movieNode = new TreeNode(item.Movie.MovieName);
                    tvMovies.Nodes.Add(movieNode);
                }
                TreeNode timeNode = new TreeNode(item.Time);
                movieNode.Nodes.Add(timeNode);
                movieName = item.Movie.MovieName;

            }
            tvMovies.EndUpdate();
        }
        /// <summary>
        /// 選擇一場電影事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tvMovies_AfterSelect(object sender, TreeViewEventArgs e)
        {
            TreeNode node = tvMovies.SelectedNode;
            if (node == null) return;
            if (node.Level != 1) return;
            key = node.Text;
            //將詳細信息顯示
            this.lblMovieName.Text = cinema.Schedule.Items[key].Movie.MovieName;
            this.lblDirector.Text = cinema.Schedule.Items[key].Movie.Director;
            this.lblActor.Text = cinema.Schedule.Items[key].Movie.Actor;
            this.lblPrice.Text = cinema.Schedule.Items[key].Movie.Price.ToString();
            this.lblTime.Text = cinema.Schedule.Items[key].Time;
            this.lblType.Text = cinema.Schedule.Items[key].Movie.MovieType.ToString();
            this.picMovie.Image = Image.FromFile(cinema.Schedule.Items[key].Movie.Poster);
            this.lblCalcPrice.Text = "";

            //清空座位
            ClearSeat();
            //遍歷該場電影的座位銷售情況
            foreach (Ticket ticket in cinema.SoldTickets)
            {
                foreach (Seat seat in cinema.Seats.Values)
                {
                    if ((ticket.ScheduleItem.Time == key)
                        &&(ticket.Seat.SeatNum == seat.SeatNum))
                    {
                        seat.Color = Color.Red;
                    }
                }
            }
            UpdateSeat();
        }
        
        /// <summary>
        /// 清空座位
        /// </summary>
        private void ClearSeat()
        {
            foreach (Seat seat in cinema.Seats.Values)
            {
                seat.Color = Color.Yellow;
            }
        }
        /// <summary>
        /// 更新座位狀態(tài) 
        /// </summary>
        private void UpdateSeat()
        {
            foreach (string key in cinema.Seats.Keys)
            {
                labels[key].BackColor = cinema.Seats[key].Color;
            }
        }
        /// <summary>
        /// 點擊一個座位
        /// 買票事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void lblSeat_Click(object sender, EventArgs e)
        {
            if (String.IsNullOrEmpty(this.lblMovieName.Text))
            {
                MessageBox.Show("您還沒選擇電影");
                return;
            }
            ticket++;
            try
            {
                string seatNum = ((Label)sender).Text.ToString();
                string customerName = this.txtCustomer.Text.ToString();
                int discount = 0;
                string type = "";
                if (this.rdoStudent.Checked)
                {
                    type = "student";
                    if (this.cmbDisCount.Text == null)
                    {
                        MessageBox.Show("請輸入折扣數");
                        return;
                    }
                    else
                    {
                        discount = int.Parse(this.cmbDisCount.Text);
                    }
                }
                else if (this.rdoFree.Checked)
                {
                    if (String.IsNullOrEmpty(this.txtCustomer.Text))
                    {
                        MessageBox.Show("請輸入贈票者姓名");
                        return;
                    }
                    else
                    {
                        type = "free";
                    }
                }
                
                           
                //調用工廠創(chuàng)建票
                Ticket newTicket = TicketFactory.CreateTicket(cinema.Schedule.Items[key], cinema.Seats[seatNum],
                    discount, customerName, type);
                if (cinema.Seats[seatNum].Color == Color.Yellow)
                {
                    //打印
                    DialogResult result;
                    result = MessageBox.Show("是否購買?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
                    if (result == DialogResult.Yes)
                    {
                        cinema.Seats[seatNum].Color = Color.Red;
                        UpdateSeat();
                        cinema.SoldTickets.Add(newTicket);
                        newTicket.CalcPrice();
                        lblCalcPrice.Text = newTicket.Price.ToString();
                        newTicket.Print();
                    }
                    else if (result == DialogResult.No)
                    {
                        return;
                    }
                }
                else
                {
                    MessageBox.Show("已售出.");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }

        private void rdoVip_CheckedChanged(object sender, EventArgs e)
        {
            this.txtCustomer.Enabled = true;
            this.cmbDisCount.Enabled = false;
            this.cmbDisCount.Text = "";
        }

        private void rdoStudent_CheckedChanged(object sender, EventArgs e)
        {
            this.txtCustomer.Enabled = false;
            this.txtCustomer.Text = "";
            this.cmbDisCount.Enabled = true;
            this.cmbDisCount.Text = "5";
        }

        private void rdoNormal_CheckedChanged(object sender, EventArgs e)
        {
            this.cmbDisCount.Enabled = false;
            this.txtCustomer.Text = "";
            this.txtCustomer.Enabled = false;
            this.cmbDisCount.Text = "";
        }

        private void tsmiExit_Click(object sender, EventArgs e)
        {
            //退出時序列化Cinema對象
            cinema.Save();
            this.Dispose();
        }

        private void tsmiSave_Click(object sender, EventArgs e)
        {
            cinema.Save();
        }

        private void MainForm_FormClosing(object sender, FormClosingEventArgs e)
        {
            DialogResult close;
            close = MessageBox.Show("是否保存當前銷售狀態(tài)?", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
            if (close == DialogResult.Yes)
            {
                cinema.Save();
            }
        }
    }
}