using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml.XPath;
using static DataManager.UIConstants;


namespace DataManager
{
    public partial class frmContactTask : Form
    {

        private ContactTask task = null;

        private string memo = string.Empty;
        
        // 模式：0-新任务，1-编辑已有任务，2-指定公司的新任务
        private int mode = 0;

        public frmContactTask(int userId)
        {
            task = new ContactTask();
            task.UserId = userId;
            task.TaskType = 1; // 建立联系
            task.TaskDate = DateTime.Now;
            task.Priority = 2; // 高
            task.Isvalid = 3; // 等待答复
            task.FollowUpDate = DateTime.Now.AddDays(3); // 缺省3天之后跟进

            InitializeComponent();

            this.mode = 0;
            InitializeData();

        }
        public frmContactTask(int userId, string companyId, string companyShortName)
        {
            task = new ContactTask();
            task.UserId = userId;
            task.TaskType = 1; // 建立联系
            task.TaskDate = DateTime.Now;
            task.Priority = 2; // 高
            task.Isvalid = 3; // 等待答复
            task.FollowUpDate = DateTime.Now.AddDays(3); // 缺省3天之后跟进
            task.CompanyId = companyId;
            task.CompanyShortName = companyShortName;

            InitializeComponent();

            this.mode = 2;
            InitializeData();

        }

        public frmContactTask(ContactTask contactTask)
        {
            this.task = contactTask;
            
            InitializeComponent();
            
            this.mode = 1;
            InitializeData();

            memo = GetTaskMemo();
        }

        private void InitializeData()
        {
            this.Text = this.Text + "  " + (mode == 0 ? "新任务" : task.TaskId.ToString());

            BindingSource bs1 = new BindingSource();
            bs1.DataSource = UIConstants.ContactTaskType;
            this.cmbTaskType.DataSource = bs1;
            this.cmbTaskType.DisplayMember = "Value";
            this.cmbTaskType.ValueMember = "Key";
            this.cmbTaskType.SelectedValue = (int)task.TaskType;
            // 已有任务不可以改变任务类型
            cmbTaskType.Enabled = (mode == 0 ? true : false);

            this.dtpTaskDate.Text = task.TaskDate.ToString();

            this.txtCompanyShortName.Text = task.CompanyShortName;
            
            switch(mode)
            {
                case 1:
                    this.cmbTaskType.Enabled = false;
                    this.dtpTaskDate.Enabled = false;
                    this.txtCompanyShortName.ReadOnly = true;
                    this.btnCompanySearch.Enabled = false;
                    break;
                case 0:
                    this.btnDelTask.Enabled = false;
                    break;
                case 2:
                    this.cmbTaskType.Enabled = true;
                    this.dtpTaskDate.Enabled = true;
                    this.txtCompanyShortName.ReadOnly = true;
                    this.btnCompanySearch.Enabled = false;
                    this.btnDelTask.Enabled = false;
                    break;
            }

            BindingSource bs = new BindingSource();
            bs.DataSource = UIConstants.TaskPriority;
            this.cmbPriority.DataSource = bs;
            this.cmbPriority.DisplayMember = "Value";
            this.cmbPriority.ValueMember = "Key";
            this.cmbPriority.SelectedValue = (int)task.Priority;

            BindingSource bs2 = new BindingSource();
            bs2.DataSource = UIConstants.ContactTaskStatus;
            this.cmbIsValid.DataSource = bs2;
            this.cmbIsValid.DisplayMember = "Value";
            this.cmbIsValid.ValueMember = "Key";
            this.cmbIsValid.SelectedValue = (int)task.Isvalid;

            this.dtpFollowUpDate.ShowCheckBox = true;
            if (task.FollowUpDate != null)
            {
                this.dtpFollowUpDate.Text = task.FollowUpDate.ToString();
                this.dtpFollowUpDate.Checked = true;
            }
            else
                this.dtpFollowUpDate.Checked = false;


        }

        private string GetTaskMemo()
        {
            string memo = string.Empty;

            if (task != null && task.TaskId > 0)
            {
                DataTable dt = DataAccess.Get_dm_memo((sbyte)UIConstants.JobType.联络, task.TaskId);

                if (dt != null && dt.Rows.Count > 0)
                {
                    memo = dt.Rows[0]["memo"].ToString().Trim();
                }
            }

            txtMemo.Text = memo;

            return memo;
        }

        private void SaveTaskMemo()
        {
            string newMemo = txtMemo.Text.Trim();

            if (memo != newMemo)
            {
                DataAccess.Set_dm_memo((sbyte)UIConstants.JobType.联络, task.TaskId, newMemo, task.UserId);
            }

            return;
        }


        private void btnSaveTask_Click(object sender, EventArgs e)
        {

            if (task.CompanyId == null || task.CompanyId.Length != 10)
            {
                MessageBox.Show("还没输入公司呢...", "建议信息", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                txtCompanyShortName.Focus();
                return;
            }

            task.TaskType = Int16.Parse(cmbTaskType.SelectedValue.ToString());
            task.TaskDate = DateTime.Parse(dtpTaskDate.Text);
            task.Priority = SByte.Parse(cmbPriority.SelectedValue.ToString());
            task.Isvalid = SByte.Parse(cmbIsValid.SelectedValue.ToString());

            if (dtpFollowUpDate.Checked == false)
                task.FollowUpDate = null;
            else
                task.FollowUpDate = DateTime.Parse(dtpFollowUpDate.Text);

            // 写回数据库时，新记录会INSERT记录并产生一个自增长的task_id
            task.TaskId = task.SaveToSQL(task.UserId);

            SaveTaskMemo();

            this.DialogResult = DialogResult.OK;
            this.Close();
            
        }

        private void btnCompanySearch_Click(object sender, EventArgs e)
        {
            if(txtCompanyShortName.TextLength < 2)
            {
                MessageBox.Show("请输入至少两个字，不然结果太多看不过来 @@", "建议信息", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                txtCompanyShortName.Focus();
                return;
            }

            // 只搜索私募公司
            DataTable companys = DataAccess.Search_dm_company(UIConstants.CompanyType.FirstOrDefault(x=>x.Value== "私募证券投资").Key, txtCompanyShortName.Text.Trim());
            if (companys == null || companys.Rows.Count == 0)
            {
                MessageBox.Show("- - 没有找到结果，换个关键字试试？", "建议信息", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
                txtCompanyShortName.Focus();
                return;

            }
            
            grdCompany.DataSource = companys;
            grdCompany.Columns["company_id"].Visible = false;
            grdCompany.Columns["company_name"].Visible = false;
            grdCompany.Columns["company_asset_size"].Visible = false;
            grdCompany.Columns["register_number"].Visible = false;
            grdCompany.Columns["establish_date"].Visible = false;
            grdCompany.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;
            grdCompany.Columns["company_short_name"].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
            grdCompany.Visible = true; 

        }

        private void grdCompany_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            int rowIndex = e.RowIndex;
            int columnIndex = e.ColumnIndex;

            if (columnIndex < 0 || rowIndex < 0) return;

            task.CompanyId = grdCompany.Rows[rowIndex].Cells["company_id"].Value.ToString();

            txtCompanyShortName.Text = grdCompany.Rows[rowIndex].Cells["company_short_name"].Value.ToString().Trim();

            grdCompany.Visible = false;

            return;
        }

    }
}