using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using ErvDashboard.Model;
using ErvProtocol;

namespace ErvDashboard
{
    // 공기질 센서 히스테리시스 팝업 : 활성 프리셋의 오염단계 임계(0~3단계 상한, 4단계 최악) + 데드밴드 표시·수정
    public partial class HystWindow : Window
    {
        readonly MainWindow _owner;
        readonly DashboardState _state;
        readonly List<Button> _presetButtons = new();

        static Brush Br(string key) => (Brush)Application.Current.Resources[key];

        public HystWindow(MainWindow owner, DashboardState state)
        {
            InitializeComponent();
            _owner = owner; _state = state;

            foreach (var (label, preset) in new[] { ("ECO", HystPreset.Eco), ("NORMAL", HystPreset.Normal), ("TURBO", HystPreset.Turbo) })
            {
                var b = new Button { Content = label, Tag = preset, Width = 96, Style = (Style)FindResource("FlatButton") };
                b.Click += Preset_Click;
                _presetButtons.Add(b);
                PresetPanel.Children.Add(b);
            }
            _state.PropertyChanged += OnStateChanged;
            RefreshPreset();
        }

        void OnStateChanged(object? s, PropertyChangedEventArgs e)
        {
            if (e.PropertyName == nameof(DashboardState.HystPreset))
                Dispatcher.BeginInvoke(RefreshPreset);
        }

        void RefreshPreset()
        {
            foreach (var b in _presetButtons)
            {
                bool active = (HystPreset)b.Tag! == _state.HystPreset;
                b.Background = active ? Br("Accent") : Br("CardBg");
                b.Foreground = active ? Brushes.White : Br("TextPrimary");
                b.BorderBrush = active ? Br("Accent") : Br("CardBorder");
            }
            FillGrid((int)_state.HystPreset);
        }

        // 활성 프리셋 값으로 표 채우기
        void FillGrid(int p)
        {
            TCo2_1.Text  = _state.Co2Thr[p][0].ToString();  TCo2_2.Text  = _state.Co2Thr[p][1].ToString();  TCo2_3.Text  = _state.Co2Thr[p][2].ToString();  TCo2_4.Text  = _state.Co2Thr[p][3].ToString();
            TPm25_1.Text = _state.Pm25Thr[p][0].ToString(); TPm25_2.Text = _state.Pm25Thr[p][1].ToString(); TPm25_3.Text = _state.Pm25Thr[p][2].ToString(); TPm25_4.Text = _state.Pm25Thr[p][3].ToString();
            TPm10_1.Text = _state.Pm10Thr[p][0].ToString(); TPm10_2.Text = _state.Pm10Thr[p][1].ToString(); TPm10_3.Text = _state.Pm10Thr[p][2].ToString(); TPm10_4.Text = _state.Pm10Thr[p][3].ToString();
            TVoc_1.Text  = _state.VocThr[p][0].ToString();  TVoc_2.Text  = _state.VocThr[p][1].ToString();  TVoc_3.Text  = _state.VocThr[p][2].ToString();  TVoc_4.Text  = _state.VocThr[p][3].ToString();
            var h = _state.HystTable[p];
            DCo2.Text = h.Co2.ToString(); DPm25.Text = h.Pm25.ToString(); DPm10.Text = h.Pm10.ToString(); DVoc.Text = h.Voc.ToString();
            // 4단계(최악) : 3단계 상한 초과 = (상한+1)~ (사양서 10p)
            MCo2.Text  = $"{_state.Co2Thr[p][3] + 1}~";  MPm25.Text = $"{_state.Pm25Thr[p][3] + 1}~";
            MPm10.Text = $"{_state.Pm10Thr[p][3] + 1}~"; MVoc.Text  = $"{_state.VocThr[p][3] + 1}~";
        }

        // 사양서 기본값으로 표 채우기 (전송은 '변경'에서) — 개발사양서 p.10
        void FillDefaults(int p)
        {
            TCo2_1.Text  = DashboardState.DefCo2Thr[p][0].ToString();  TCo2_2.Text  = DashboardState.DefCo2Thr[p][1].ToString();  TCo2_3.Text  = DashboardState.DefCo2Thr[p][2].ToString();  TCo2_4.Text  = DashboardState.DefCo2Thr[p][3].ToString();
            TPm25_1.Text = DashboardState.DefPm25Thr[p][0].ToString(); TPm25_2.Text = DashboardState.DefPm25Thr[p][1].ToString(); TPm25_3.Text = DashboardState.DefPm25Thr[p][2].ToString(); TPm25_4.Text = DashboardState.DefPm25Thr[p][3].ToString();
            TPm10_1.Text = DashboardState.DefPm10Thr[p][0].ToString(); TPm10_2.Text = DashboardState.DefPm10Thr[p][1].ToString(); TPm10_3.Text = DashboardState.DefPm10Thr[p][2].ToString(); TPm10_4.Text = DashboardState.DefPm10Thr[p][3].ToString();
            TVoc_1.Text  = DashboardState.DefVocThr[p][0].ToString();  TVoc_2.Text  = DashboardState.DefVocThr[p][1].ToString();  TVoc_3.Text  = DashboardState.DefVocThr[p][2].ToString();  TVoc_4.Text  = DashboardState.DefVocThr[p][3].ToString();
            var d = DashboardState.DefDeadband[p];
            DCo2.Text = d.Co2.ToString(); DPm25.Text = d.Pm25.ToString(); DPm10.Text = d.Pm10.ToString(); DVoc.Text = d.Voc.ToString();
            MCo2.Text  = $"{DashboardState.DefCo2Thr[p][3] + 1}~";  MPm25.Text = $"{DashboardState.DefPm25Thr[p][3] + 1}~";
            MPm10.Text = $"{DashboardState.DefPm10Thr[p][3] + 1}~"; MVoc.Text  = $"{DashboardState.DefVocThr[p][3] + 1}~";
        }

        // '읽어오기' : ERV 통신값(=_state, STATUS로 갱신)으로 표 재채움 (편집 내용 버림)
        void Read_Click(object sender, RoutedEventArgs e) => FillGrid((int)_state.HystPreset);

        // '프리셋' : 사양서 기본값으로 표 채움 (전송은 '변경')
        void PresetDefault_Click(object sender, RoutedEventArgs e) => FillDefaults((int)_state.HystPreset);

        static int P(TextBox tb) { int.TryParse(tb.Text, out int v); return v < 0 ? 0 : v > 65535 ? 65535 : v; }

        void Preset_Click(object sender, RoutedEventArgs e)
        {
            if (sender is Button b && b.Tag is HystPreset p) _owner.SelectPreset(p);
        }

        void Apply_Click(object sender, RoutedEventArgs e)
        {
            int p = (int)_state.HystPreset;
            // 표 → 상태
            _state.Co2Thr[p][0]  = P(TCo2_1);  _state.Co2Thr[p][1]  = P(TCo2_2);  _state.Co2Thr[p][2]  = P(TCo2_3);  _state.Co2Thr[p][3]  = P(TCo2_4);
            _state.Pm25Thr[p][0] = P(TPm25_1); _state.Pm25Thr[p][1] = P(TPm25_2); _state.Pm25Thr[p][2] = P(TPm25_3); _state.Pm25Thr[p][3] = P(TPm25_4);
            _state.Pm10Thr[p][0] = P(TPm10_1); _state.Pm10Thr[p][1] = P(TPm10_2); _state.Pm10Thr[p][2] = P(TPm10_3); _state.Pm10Thr[p][3] = P(TPm10_4);
            _state.VocThr[p][0]  = P(TVoc_1);  _state.VocThr[p][1]  = P(TVoc_2);  _state.VocThr[p][2]  = P(TVoc_3);  _state.VocThr[p][3]  = P(TVoc_4);
            var h = _state.HystTable[p];
            h.Co2 = P(DCo2); h.Pm25 = P(DPm25); h.Pm10 = P(DPm10); h.Voc = P(DVoc);

            _owner.ApplyHystPreset(p);
        }

        void Close_Click(object sender, RoutedEventArgs e) => Close();

        protected override void OnClosed(System.EventArgs e)
        {
            _state.PropertyChanged -= OnStateChanged;
            base.OnClosed(e);
        }
    }
}