using bsmd.AIS2Service;
using System.ComponentModel;

namespace AISAdmin
{

    public partial class Main : Form
    {
        private AIS_SQLiteStorage? _storage;
        private BindingList<MonitorGroup> _monitorGroups = new();
        private MonitorGroup? _currentGroup;
        private readonly Dictionary<MonitorZone, List<MonitorAssignment>> _zoneAssignmentDict = new();
        private readonly List<AIS_Target> _allTargets = new();

        public Main()
        {
            InitializeComponent();
            _currentGroup = null;
        }

        private void buttonZoneUp_Click(object sender, EventArgs e)
        {
            MonitorZone mz = (MonitorZone)this.listBoxZones.SelectedItem;
            int i = this.listBoxZones.SelectedIndex;
            BindingList<MonitorZone> zones = (BindingList<MonitorZone>)this.listBoxZones.DataSource;
            if (mz != null && (i > 0))
            {
                MonitorZone prevZone = zones[i - 1];
                mz.Sequence -= 1;
                prevZone.Sequence += 1;
                zones[i - 1] = mz;
                zones[i] = prevZone;
                this.listBoxZones.SelectedIndex = i - 1;
            }
        }

        private void buttonZoneDown_Click(object sender, EventArgs e)
        {
            MonitorZone mz = (MonitorZone)this.listBoxZones.SelectedItem;
            int i = this.listBoxZones.SelectedIndex;
            BindingList<MonitorZone> zones = (BindingList<MonitorZone>) this.listBoxZones.DataSource;
            if (mz != null && (i < (zones.Count - 1)))
            {
                MonitorZone nextZone = zones[i + 1];
                mz.Sequence += 1;
                nextZone.Sequence -= 1;
                zones[i + 1] = mz;
                zones[i] = nextZone;
                this.listBoxZones.SelectedIndex = i + 1;
            }
        }

        private void buttonImportZone_Click(object sender, EventArgs e)
        {
            using OpenFileDialog ofd = new();
            ofd.Filter = "Google Earth KML files (*.kml)|*.kml|All files (*.*)|*.*";
            ofd.RestoreDirectory = true;
            ofd.Multiselect = false;
            if (ofd.ShowDialog() == DialogResult.OK)
            {
                _monitorGroups = new BindingList<MonitorGroup>(MonitorGroup.LoadGroups(ofd.FileName));
                this.comboBoxGroup.DataSource = _monitorGroups;
                if (_monitorGroups.Count > 0)
                    this.comboBoxGroup.SelectedIndex = 0;
                this.buttonSaveGroup.Enabled = _monitorGroups.Count > 0;
                this.listBoxZones.Enabled = _monitorGroups.Count > 0;
            }
        }

        private void buttonEditZone_Click(object sender, EventArgs e)
        {

        }

        private void buttonDeleteZone_Click(object sender, EventArgs e)
        {

        }

        private void buttonNewGroup_Click(object sender, EventArgs e)
        {
            this.textBoxGroup.ReadOnly = false;
            this.buttonSaveGroup.Enabled = true;
            _currentGroup = new MonitorGroup(-1, "");
            this.textBoxGroup.ResetText();
        }        

        private void buttonDeleteGroup_Click(object sender, EventArgs e)
        {

        }

        private void buttonSaveGroup_Click(object sender, EventArgs e)
        {
            // save everything
            foreach(MonitorGroup mg in this._monitorGroups)
            {
                this._storage?.Save(mg);
                foreach(MonitorZone mz in mg.Zones)
                {
                    if (mz.MonitorGroupId < 1) mz.MonitorGroupId = mg.Id;
                    this._storage?.Save(mz);

                    foreach(GeoPoint vertex in mz.Vertices)
                    {
                        if(vertex.MonitorZoneId < 1) vertex.MonitorZoneId = mz.Id;
                        this._storage?.Save(vertex);
                    }
                }
            }            
        }

        private async void Main_Load(object sender, EventArgs e)
        {
            _storage = new AIS_SQLiteStorage(Properties.Settings.Default.SQLiteDBConnectionString);
            _monitorGroups = new BindingList<MonitorGroup>(_storage.LoadGroups());
            List<MonitorZone> zones = _storage.LoadMonitorZones();
            foreach(MonitorGroup mg in _monitorGroups)
            {
                foreach(MonitorZone mz in zones)
                {
                    if (mz.MonitorGroupId == mg.Id)
                        mg.Zones.Add(mz);
                }
            }
            this.comboBoxGroup.DataSource = _monitorGroups;
            this.comboBoxGroup.DisplayMember = "Name";
            if (_monitorGroups.Count > 0)
                this.comboBoxGroup.SelectedIndex = 0;
            this.buttonSaveGroup.Enabled = _monitorGroups.Count > 0;
            this.listBoxZones.Enabled = _monitorGroups.Count > 0;

            Dictionary<int, AIS_Target> allTargets = await _storage.LoadTargets();
            foreach (int mmsi in allTargets.Keys)
                this._allTargets.Add(allTargets[mmsi]);
            this._allTargets.Sort();
            this.listBoxTargets.DataSource = this._allTargets;
            if (this._allTargets.Count > 0)
                this.listBoxTargets.Enabled = true;
        }

        private void comboBoxGroup_SelectedIndexChanged(object sender, EventArgs e)
        {
            _currentGroup = (MonitorGroup) this.comboBoxGroup.SelectedItem;            
            if (_currentGroup != null)
            {
                _currentGroup.Zones.Sort();
                this.listBoxZones.DataSource = new BindingList<MonitorZone>(_currentGroup.Zones);
                foreach(MonitorZone zone in _currentGroup.Zones)
                {
                    _zoneAssignmentDict[zone] = _storage?.LoadAssignmentsForZone(zone.Id) ?? new();
                }                                
            }
            else
            {
                this.listBoxZones.DataSource = null;
                this.textBoxGroup.ResetText();
                this.buttonSaveGroup.Enabled = false;
                this.textBoxGroup.ReadOnly = true;
            }
            this.buttonZoneDown.Enabled = (this._currentGroup != null) && (this._currentGroup.Zones.Count > 1);
            this.buttonZoneUp.Enabled = (this._currentGroup != null) && (this._currentGroup.Zones.Count > 1);
        }

        private void checkBoxZoneActive_CheckedChanged(object sender, EventArgs e)
        {
            MonitorZone mz = (MonitorZone)this.listBoxZones.SelectedItem;
            if (mz != null)
            {
                mz.Active = this.checkBoxZoneActive.Checked;
            }
        }

        private void listBoxZones_SelectedIndexChanged(object sender, EventArgs e)
        {
            MonitorZone mz = (MonitorZone) this.listBoxZones.SelectedItem;
            if(mz != null)
            {
                this.checkBoxZoneActive.Checked = mz.Active;
                this.textBoxZone.Text = mz.Name;
                if (this._zoneAssignmentDict.ContainsKey(mz))
                    this.listBoxAssignment.DataSource = new BindingList<MonitorAssignment>(this._zoneAssignmentDict[mz]);
                else
                    this.listBoxAssignment.DataSource = null;
            }
        }

        private void buttonNewAssignment_Click(object sender, EventArgs e)
        {
            MonitorAssignment ma = new(-1);
            using EditAssignmentDialog ead = new EditAssignmentDialog();
            ead.Assignment = ma;
            if(ead.ShowDialog() == DialogResult.OK)
            {
                this.AddOrUpdateAssignmentForAllGroupZones(ma.MMSI, ma.MonitorType);
            }
        }

        private void AddOrUpdateAssignmentForAllGroupZones(int mMSI, MonitorAssignment.ZoneMonitorType monitorType)
        {
            if (this._currentGroup == null) return;
            foreach (MonitorZone mz in this._currentGroup.Zones)
            {
                if (!this._zoneAssignmentDict.ContainsKey(mz))
                    this._zoneAssignmentDict[mz] = new();

                MonitorAssignment? ma = this._zoneAssignmentDict[mz].FirstOrDefault((z) => z.MMSI == mMSI);
                if (ma == null)
                {
                    ma = new MonitorAssignment(-1);
                    ma.MonitorZoneId = mz.Id;
                    this._zoneAssignmentDict[mz].Add(ma);
                }
                ma.MMSI = mMSI;
                ma.MonitorType = monitorType;
                _storage?.Save(ma);
            }
        }

        private void buttonDeleteAssignment_Click(object sender, EventArgs e)
        {
            MonitorAssignment? ma = (MonitorAssignment)this.listBoxAssignment.SelectedItem;
            if(ma != null)
            {                

            }
        }

        private void buttonAssignSelectedTarget_Click(object sender, EventArgs e)
        {
            foreach (AIS_Target target in this.listBoxTargets.SelectedItems)
            {
                this.AddOrUpdateAssignmentForAllGroupZones(target.MMSI, MonitorAssignment.ZoneMonitorType.ENTER);
            }
        }
    }
}