///
/// Copyright (c) 2019 Sensus Slovensko a.s.
///
using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;
using log4net;
using Common;
using Config.Entities;
using TBF.Rig.GenericDevices;
using TBF.Resources;

namespace TBF.UI.Procedures.TestWizard
{
	public partial class TestProfileSelection : Form
	{
        static readonly ILog log = LogManager.GetLogger(typeof(TestProfileSelection));

        IList<Profile> profiles;

        public Profile SelectedProfile;
        public double Qn;
        public string MetroClass;
        public double QpQiRatio;

        public TestProfileSelection(IList<Profile> profiles)
		{
            this.profiles = profiles;

            InitializeComponent();

            listView.Columns.Add(Strings.Name, 70);
            listView.Columns.Add(Strings.Part, 40);
            listView.Columns.Add(string.Format("{0} [m3/h]", Strings.Q_tg), 80);
            listView.Columns.Add(string.Format("{0} [m3/h]", Strings.Q_from), 80);
            listView.Columns.Add(string.Format("{0} [m3/h]", Strings.Q_to), 70);
            listView.Columns.Add(Strings.Err_limit_neg_pct_chdr, 80);
            listView.Columns.Add(Strings.Err_limit_pos_pct_chdr, 80);

            if (profiles != null)
            {
                foreach (var p in profiles) profileComboBox.Items.Add(p.Name);
            }

            foreach (var s in new string[] { "10", "25", "50", "100", "250" }) qpQiRatioComboBox.Items.Add(s);

			nextButton.Enabled = false;
		}

		private void TestProfileSelection_Load(object sender, EventArgs e)
		{
            Localize();
		}

        void Localize()
        {
            Text = Strings.Test_profiles_selection;
            nextButton.Text = Strings.NextBtnText;
            cancelButton.Text = Strings.CancelBtnText;
        }

        void RedrawQn(Profile profile)
        {
            switch (profile.ProfileType)
            {
                case ProfileType.Q3R:
                    qnLabel.Text = "Q3";
                    break;
                case ProfileType.QpQi:
                    qnLabel.Text = "qp";
                    break;
                case ProfileType.QnClassColdWater:
                case ProfileType.QnClassHotWater:
                case ProfileType.Manual:
                default:
                    qnLabel.Text = "Qn";
                    break;
            }
        }

        void RedrawMClassCombo(Profile profile)
        {
            string oriText = metroClassComboBox.Text;
            metroClassComboBox.Items.Clear();
            bool clearTextFlag = true;

            if (profile != null)
            {
                string[] mClasses;
                switch (profile.ProfileType)
                {
                    default:
                    case ProfileType.Q3R:
                        mClasses = new string[] { "R40", "R50", "R63", "R80", "R100", "R125", "R160", "R200", "R250", "R315",
                                                  "R400", "R500", "R630", "R800", "R1000", "R1250", "R1600", "R2000", "R2500" };
                        break;
                    case ProfileType.QnClassColdWater:
                        mClasses = new string[] { "A", "B", "C" };
                        break;
                    case ProfileType.QnClassHotWater:
                        mClasses = new string[] { "A", "B", "C", "D" };
                        break;
                    case ProfileType.QpQi:
                        mClasses = new string[] { "1", "2", "3" };
                        break;
                }

                foreach (var mc in mClasses)
                {
                    metroClassComboBox.Items.Add(mc);
                    if (oriText == mc) clearTextFlag = false;
                }
            }

            if (clearTextFlag) metroClassComboBox.Text = string.Empty;
        }


        void RedrawPTests(Profile profile)
        {
            listView.Items.Clear();

            if (profile == null) return;

            try
            {
                foreach (var ptest in profile.Tests)
                {
                    Medium medium = (profile.ProfileType == ProfileType.QnClassHotWater) ? Medium.HotWater : Medium.ColdWater;

                    double Qtg = TBF.UI.Procedures.Formulas.GetTargetQ(ptest, Qn, QpQiRatio, MetroClass, medium);
                    double Qfrom = Qtg * ptest.CoefQfrom;
                    double Qto = Qtg * ptest.CoefQto;

                    ListViewItem lvi;
                    if (profile.ProfileType != ProfileType.QpQi)
                    {
                        lvi = new ListViewItem(new string[] { ptest.Name,
                                                              (ptest.Part > 0) ? ptest.Part.ToString() : "-",
                                                              Qtg.ToString(),
                                                              Qfrom.ToString(),
                                                              Qto.ToString(),
                                                              ptest.ErrLimLo.ToString(),
                                                              ptest.ErrLimHi.ToString() });
                    }
                    else
                    {
                        lvi = new ListViewItem(new string[] { ptest.Name,
                                                              (ptest.Part > 0) ? ptest.Part.ToString() : "-",
                                                              Qtg.ToString(),
                                                              Qfrom.ToString(),
                                                              Qto.ToString(),
                                                              Strings.calculated,
                                                              Strings.calculated });
                    }

                    lvi.Tag = ptest;
                    listView.Items.Add(lvi);
                }
            }
            catch (Exception)
            {
                MessageBox.Show("Something went wrong");
            }
        }


        private void profileComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            Profile newProfile = null;
            foreach (var p in profiles)
            {
                if (profileComboBox.Text == p.Name)
                {
                    newProfile = p;
                    break;
                }
            }

            if (SelectedProfile != newProfile)
            {
                SelectedProfile = newProfile;

                qpQiRatioGroupBox.Visible = (SelectedProfile.ProfileType == ProfileType.QpQi);
                metroClassGroupBox.Visible = (SelectedProfile.ProfileType != ProfileType.Manual);

                profileTypeLabel.Text = (newProfile != null) ? newProfile.ProfileType.ToString() : string.Empty;
                profileDescriptionLabel.Text = (newProfile != null) ? newProfile.Description : string.Empty;
                RedrawQn(newProfile);
                RedrawMClassCombo(newProfile);

                if (IsFormValid())
                {
                    RedrawPTests(newProfile);
                    nextButton.Enabled = true;
                }
                else
                {
                    RedrawPTests(null);
                    nextButton.Enabled = false;
                }
            }
        }

        private void qnComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (IsFormValid())
            {
                RedrawPTests(SelectedProfile);
                nextButton.Enabled = true;
            }
            else
            {
                RedrawPTests(null);
                nextButton.Enabled = false;
            }
        }

        private void metroClassComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (IsFormValid())
            {
                RedrawPTests(SelectedProfile);
                nextButton.Enabled = true;
            }
            else
            {
                RedrawPTests(null);
                nextButton.Enabled = false;
            }
        }

        private void qpQiRatioComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (IsFormValid())
            {
                RedrawPTests(SelectedProfile);
                nextButton.Enabled = true;
            }
            else
            {
                RedrawPTests(null);
                nextButton.Enabled = false;
            }
        }


        bool IsProfileValid()
        {
            return profileComboBox.Items.Contains(profileComboBox.Text);  /// CB text must be one of the items
        }

        bool IsQnValid()
        {
            if (!string.IsNullOrEmpty(qnTextBox.Text) && Utils.TryParseUDouble(qnTextBox.Text, out Qn) && (Qn > 0))
            {
                return true;
            }
            else
            {
                Qn = 0;
                return false;
            }
        }

        bool IsMetroClassValid()
        {
            if (SelectedProfile.ProfileType == ProfileType.Manual)
            {
                MetroClass = string.Empty;
                return true;
            }

            if (!string.IsNullOrEmpty(metroClassComboBox.Text) &&
                (metroClassComboBox.Items.Count == 0 || metroClassComboBox.Items.Contains(metroClassComboBox.Text)))
            {
                MetroClass = metroClassComboBox.Text;
                return true;
            }

            MetroClass = string.Empty;
            return false;
        }

        bool IsQpQiRatioValid()
        {
            if (SelectedProfile.ProfileType != ProfileType.QpQi)
            {
                QpQiRatio = 1.0;
                return true;
            }

            if (!string.IsNullOrEmpty(qpQiRatioComboBox.Text) && qpQiRatioComboBox.Items.Contains(qpQiRatioComboBox.Text))
            {
                QpQiRatio = double.Parse(qpQiRatioComboBox.Text);
                return true;
            }

            QpQiRatio = 1.0;
            return false;
        }

        bool IsFormValid()
        {
            return IsProfileValid() && IsQnValid() && IsMetroClassValid() && IsQpQiRatioValid();
        }

		private void nextButton_Click(object sender, EventArgs e)
		{
            if (IsFormValid())
            {
                DialogResult = DialogResult.OK;
                Close();
            }
            else
            {
                MessageBox.Show("Something's wrong");
            }
		}

		private void cancelButton_Click(object sender, EventArgs e)
		{
            DialogResult = DialogResult.Cancel;
            Close();
		}
    }
}