using System;
using System.Windows.Forms;

namespace MeshCentralRouter
{
    public partial class AddPortMapForm : Form
    {
        private MeshCentralServer meshcentral;
        private NodeClass selectedNode = null;

        public AddPortMapForm(MeshCentralServer meshcentral)
        {
            this.meshcentral = meshcentral;
            InitializeComponent();
        }

        public string getName() { return nameTextBox.Text; }
        public int getProtocol() { return (int)(tcpRadioButton.Checked?1:2); }
        public int getLocalPort() { return (int)localNumericUpDown.Value; }
        public int getRemotePort() { return (int)remoteNumericUpDown.Value; }
        public int getAppId() {
            int x = (int)appComboBox.SelectedIndex;
            if (x == 0) { return 0; } // Custom
            if (x == 1) { return 1; } // HTTP
            if (x == 2) { return 2; } // HTTPS
            if (x == 3) { return 4; } // PuTTY
            if (x == 4) { return 3; } // RDP
            if (x == 5) { return 5; } // WinSCP
            return x;
        }
        public NodeClass getNode() { return (NodeClass)nodeComboBox.SelectedItem; }
        public void setNode(NodeClass node) { selectedNode = node; }

        private void AddPortMapForm_Load(object sender, EventArgs e)
        {
            if (selectedNode == null)
            {
                // Fill the groups
                groupComboBox.Items.Clear();
                foreach (string meshid in meshcentral.meshes.Keys)
                {
                    MeshClass mesh = meshcentral.meshes[meshid];
                    if ((mesh.type == 2) || (mesh.type == 3))
                    {
                        int nodeCount = 0;
                        foreach (string nodeid in meshcentral.nodes.Keys)
                        {
                            NodeClass node = meshcentral.nodes[nodeid];
                            if ((node.meshid == mesh.meshid) && (((node.conn & 1) != 0) || (node.mtype == 3))) { nodeCount++; }
                        }
                        if (nodeCount > 0) { groupComboBox.Items.Add(mesh); }
                    }
                }

                // If the user has indivitual device rights, add an extra device group
                if (meshcentral.userRights != null)
                {
                    bool indivitualDevices = false;
                    foreach (string id in meshcentral.userRights.Keys) { if (id.StartsWith("node/")) { indivitualDevices = true; } }
                    if (indivitualDevices)
                    {
                        MeshClass m = new MeshClass();
                        m.name = Properties.Resources.IndividualDevices;
                        groupComboBox.Items.Add(m);
                    }
                }

                // Set default selection
                if (groupComboBox.Items.Count > 0) { groupComboBox.SelectedIndex = 0; }
                appComboBox.SelectedIndex = 1;
                fillNodesInDropDown();
            } else {
                if (selectedNode.mesh == null)
                {
                    MeshClass m = new MeshClass();
                    m.name = Properties.Resources.IndividualDevices;
                    groupComboBox.Items.Add(m);
                }
                else
                {
                    groupComboBox.Items.Add(selectedNode.mesh);
                }
                groupComboBox.SelectedIndex = 0;
                groupComboBox.Enabled = false;
                nodeComboBox.Items.Add(selectedNode);
                nodeComboBox.SelectedIndex = 0;
                nodeComboBox.Enabled = false;
                appComboBox.SelectedIndex = 1;
            }
            nameTextBox.Focus();
        }

        private void fillNodesInDropDown()
        {
            if (selectedNode != null) return;

            MeshClass mesh = (MeshClass)groupComboBox.SelectedItem;

            // Fill the nodes dropdown
            nodeComboBox.Items.Clear();
            if (meshcentral.nodes != null)
            {
                foreach (string nodeid in meshcentral.nodes.Keys)
                {
                    NodeClass node = meshcentral.nodes[nodeid];
                    if (((node.meshid == mesh.meshid) || ((mesh.meshid == null) && (meshcentral.userRights.ContainsKey(node.nodeid)))) && (((node.conn & 1) != 0) || (node.mtype == 3))) { nodeComboBox.Items.Add(node); }
                }
            }

            if (nodeComboBox.Items.Count > 0) { nodeComboBox.SelectedIndex = 0; }
        }

        private void appComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            if (appComboBox.SelectedIndex == 1) { remoteNumericUpDown.Value = 80; } // HTTP
            if (appComboBox.SelectedIndex == 2) { remoteNumericUpDown.Value = 443; } // HTTPS
            if (appComboBox.SelectedIndex == 3) { remoteNumericUpDown.Value = 22; } // SSH
            if (appComboBox.SelectedIndex == 4) { remoteNumericUpDown.Value = 3389; } // RDP
            if (appComboBox.SelectedIndex == 5) { remoteNumericUpDown.Value = 22; } // SCP
        }

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

        private void okButton_Click(object sender, EventArgs e)
        {
            DialogResult = DialogResult.OK;
        }

        private void groupComboBox_SelectedIndexChanged(object sender, EventArgs e)
        {
            fillNodesInDropDown();
        }

        private void tcpRadioButton_CheckedChanged(object sender, EventArgs e)
        {
            appComboBox.Enabled = tcpRadioButton.Checked;
            if (udpRadioButton.Checked) { appComboBox.SelectedIndex = 0; }
        }
    }
}