using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using ERVSimulator.Model;

namespace ERVSimulator
{
    // 공기질 센서 히스테리시스 팝업 : 활성 프리셋(ECO/NORMAL/TURBO)의 오염단계 임계 + 히스(하강) 표시·수정
    public partial class HystWindow : Window
    {
        readonly ErvState _state;
        public event Action<string>? Applied;

        Brush Br(string key) => (Brush)FindResource(key);

        public HystWindow(ErvState state)
        {
            InitializeComponent();
            _state = state;
            // MainWindow 프리셋 버튼 / 대시보드 CTRL 로 HystPreset 변경 시 팝업도 즉시 동기화
            _state.PropertyChanged += OnStateChanged;
            RefreshPreset();
        }

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

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

        void RefreshPreset()
        {
            foreach (var child in PresetPanel.Children)
            {
                if (child is Button btn && btn.Tag is string tag && byte.TryParse(tag, out var p))
                {
                    bool active = p == _state.HystPreset;
                    btn.Background = active ? Br("AccentCyanBrush") : Br("CardBgBrush");
                    btn.Foreground = active ? Brushes.Black : Br("TextPrimaryBrush");
                }
            }
            FillGrid(_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();
            DCo2.Text = _state.Co2Db[p].ToString(); DPm25.Text = _state.Pm25Db[p].ToString(); DPm10.Text = _state.Pm10Db[p].ToString(); DVoc.Text = _state.VocDb[p].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}~";
        }

        static ushort P(TextBox tb) { ushort.TryParse(tb.Text, out var v); return v; }

        void Preset_Click(object sender, RoutedEventArgs e)
        {
            if (sender is Button b && b.Tag is string tag && byte.TryParse(tag, out var p) && p < 3)
            {
                _state.HystPreset = p;
                RefreshPreset();
                Applied?.Invoke($"[Manual] 히스테리시스 프리셋 → {(p == 0 ? "ECO" : p == 1 ? "NORMAL" : "TURBO")}");
            }
        }

        void Apply_Click(object sender, RoutedEventArgs e)
        {
            int p = _state.HystPreset;
            _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);
            _state.Co2Db[p] = P(DCo2); _state.Pm25Db[p] = P(DPm25); _state.Pm10Db[p] = P(DPm10); _state.VocDb[p] = P(DVoc);

            Applied?.Invoke($"[Manual] 공기질 센서 히스테리시스 적용 (프리셋 {(p == 0 ? "ECO" : p == 1 ? "NORMAL" : "TURBO")})");
        }

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