using MgTestAdmin.Model;
using SqliteDotNet;
using System;
using System.Windows.Forms;

namespace MgTestAdmin
{
    public partial class ParameterSetManager : UserControl
    {
        public ParameterSetManager()
        {
            InitializeComponent();
        }

        public event EventHandler SelectedParamSetChanged;

        public ParameterSetInfo SelectedParamSet
        {
            get
            {
                if (lstParamSets.SelectedItem != null)
                    return (ParameterSetInfo)lstParamSets.SelectedItem;
                return null;
            }
        }

        private SqliteDb _db;
        private bool _freeze;
        private OperationProviderService _opService;

        public void Setup(SqliteDb db, bool freeze, OperationProviderService opService)
        {
            _db = db;
            _freeze = freeze;
            _opService = opService;

            tbAdd.DropDownItems.Clear();
            if (_opService != null)
            {
                foreach (var cat in _opService.GetCategories())
                {
                    var btn = new ToolStripMenuItem(cat);
                    tbAdd.DropDownItems.Add(btn);
                    foreach (var op in _opService.GetProviders(cat))
                    {
                        var opBtn = new ToolStripMenuItem(op.Name);
                        opBtn.Tag = op;
                        opBtn.Click += OpBtn_Click;
                        btn.DropDownItems.Add(opBtn);
                    }
                }
            }
            mainToolstrip.Visible = !_freeze;

            lstParamSets.DataSource = _db.GetParamSets();
            //If we have any tests in the list select the first one by default
            if (lstParamSets.Items.Count > 0)
            {
                lstParamSets.SelectedIndex = 0;
            }
            tbDelete.Enabled = lstParamSets.SelectedIndex >= 0;
        }

        private void OpBtn_Click(object sender, EventArgs e)
        {
            var op = (sender as ToolStripMenuItem)?.Tag as IOperationProvider;
            if (op != null)
            {
                lstParamSets.ClearSelected();
                var ps = op.CreateDefault(_db.GetNewParamSetId());
                this.LoadMainPanel(new ParameterSetControl().Attach(ps, _db, _freeze));
            }
        }

        private void tbDelete_Click(object sender, EventArgs e)
        {
            MessageBox.Show("Not implemented yet");
        }

        private void lstParamSets_SelectedIndexChanged(object sender, EventArgs e)
        {
            tbDelete.Enabled = lstParamSets.SelectedIndex >= 0;
            if (lstParamSets.SelectedItem != null)
            {
                var psi = (ParameterSetInfo)lstParamSets.SelectedItem;
                var ps = _db.GetParamSet(psi.Id);
                if (ps != null)
                {
                    this.LoadMainPanel(new ParameterSetControl().Attach(ps, _db, _freeze));
                    this.SelectedParamSetChanged?.Invoke(this, EventArgs.Empty);
                }
            }
        }

        private void ClearMainPanel()
        {
            foreach (Control c in splitContainer1.Panel2.Controls)
            {
                c.Dispose();
            }
            splitContainer1.Panel2.Controls.Clear();
        }

        private void LoadMainPanel(Control c)
        {
            this.SuspendLayout();
            try
            {
                this.ClearMainPanel();
                c.Dock = DockStyle.Fill;
                splitContainer1.Panel2.Controls.Add(c);
            }
            finally
            {
                this.ResumeLayout();
            }
        }
    }
}