refactor: rearrange and add solution for 4-series

src/PepperDash.Essentials.Core/Presets/DevicePresets.cs

@@ -0,0 +1,302 @@
+extern alias Full; 
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+using Crestron.SimplSharp;
+using Crestron.SimplSharp.CrestronIO;
+using Full.Newtonsoft.Json;
+using PepperDash.Core;
+
+//using SSMono.IO;
+using PepperDash.Core.WebApi.Presets;
+
+namespace PepperDash.Essentials.Core.Presets
+{
+    /// <summary>
+    /// Class that represents the model behind presets display
+    /// </summary>
+    public class DevicePresetsModel : Device
+    {
+        public delegate void PresetRecalledCallback(ISetTopBoxNumericKeypad device, string channel);
+
+        public delegate void PresetsSavedCallback(List<PresetChannel> presets);
+
+        private readonly CCriticalSection _fileOps = new CCriticalSection();
+        private readonly bool _initSuccess;
+
+        private readonly ISetTopBoxNumericKeypad _setTopBox;
+
+        /// <summary>
+        /// The methods on the STB device to call when dialing
+        /// </summary>
+        private Dictionary<char, Action<bool>> _dialFunctions;
+
+        private bool _dialIsRunning;
+        private Action<bool> _enterFunction;
+        private string _filePath;
+
+        public DevicePresetsModel(string key, ISetTopBoxNumericKeypad setTopBox, string fileName)
+            : this(key, fileName)
+        {
+            try
+            {
+                _setTopBox = setTopBox;
+
+                // Grab the digit functions from the device
+                // If any fail, the whole thing fails peacefully
+                _dialFunctions = new Dictionary<char, Action<bool>>(10)
+                {
+                    {'1', setTopBox.Digit1},
+                    {'2', setTopBox.Digit2},
+                    {'3', setTopBox.Digit3},
+                    {'4', setTopBox.Digit4},
+                    {'5', setTopBox.Digit5},
+                    {'6', setTopBox.Digit6},
+                    {'7', setTopBox.Digit7},
+                    {'8', setTopBox.Digit8},
+                    {'9', setTopBox.Digit9},
+                    {'0', setTopBox.Digit0},
+                    {'-', setTopBox.Dash}
+                };
+            }
+            catch
+            {
+                Debug.Console(0, "DevicePresets '{0}', not attached to INumericKeypad device. Ignoring", key);
+                _dialFunctions = null;
+                return;
+            }
+
+            _enterFunction = setTopBox.KeypadEnter;
+        }
+
+        public DevicePresetsModel(string key, string fileName) : base(key)
+        {
+            PulseTime = 150;
+            DigitSpacingMs = 150;
+
+            UseLocalImageStorage = true;
+
+            ImagesLocalHostPrefix = "http://" + CrestronEthernetHelper.GetEthernetParameter(
+                CrestronEthernetHelper.ETHERNET_PARAMETER_TO_GET.GET_CURRENT_IP_ADDRESS, 0);
+            ImagesPathPrefix = @"/presets/images.zip/";
+            ListPathPrefix = @"/html/presets/lists/";
+
+            SetFileName(fileName);
+
+            _initSuccess = true;
+        }
+
+        public event PresetRecalledCallback PresetRecalled;
+        public event PresetsSavedCallback PresetsSaved;
+
+        public int PulseTime { get; set; }
+        public int DigitSpacingMs { get; set; }
+        public bool PresetsAreLoaded { get; private set; }
+
+        public List<PresetChannel> PresetsList { get; private set; }
+
+        public int Count
+        {
+            get { return PresetsList != null ? PresetsList.Count : 0; }
+        }
+
+        public bool UseLocalImageStorage { get; set; }
+        public string ImagesLocalHostPrefix { get; set; }
+        public string ImagesPathPrefix { get; set; }
+        public string ListPathPrefix { get; set; }
+        public event EventHandler PresetsLoaded;
+
+
+        public void SetFileName(string path)
+        {
+            _filePath = ListPathPrefix + path;
+
+            Debug.Console(2, this, "Setting presets file path to {0}", _filePath);
+            LoadChannels();
+        }
+
+        public void LoadChannels()
+        {
+            try
+            {
+                _fileOps.Enter();
+
+                Debug.Console(2, this, "Loading presets from {0}", _filePath);
+                PresetsAreLoaded = false;
+                try
+                {
+                    var pl = JsonConvert.DeserializeObject<PresetsList>(File.ReadToEnd(_filePath, Encoding.ASCII));
+                    Name = pl.Name;
+                    PresetsList = pl.Channels;
+                }
+                catch (Exception e)
+                {
+                    Debug.Console(2, this,
+                        "LoadChannels: Error reading presets file. These presets will be empty:\r  '{0}'\r  Error:{1}",
+                        _filePath, e.Message);
+                    // Just save a default empty list
+                    PresetsList = new List<PresetChannel>();
+                }
+                PresetsAreLoaded = true;
+
+                var handler = PresetsLoaded;
+                if (handler != null)
+                {
+                    handler(this, EventArgs.Empty);
+                }
+            }
+            finally
+            {
+                _fileOps.Leave();
+            }
+        }
+
+        public void Dial(int presetNum)
+        {
+            if (presetNum <= PresetsList.Count)
+            {
+                Dial(PresetsList[presetNum - 1].Channel);
+            }
+        }
+
+        public void Dial(string chanNum)
+        {
+            if (_dialIsRunning || !_initSuccess)
+            {
+                return;
+            }
+            if (_dialFunctions == null)
+            {
+                Debug.Console(1, "DevicePresets '{0}', not attached to keypad device. Ignoring channel", Key);
+                return;
+            }
+
+            _dialIsRunning = true;
+            CrestronInvoke.BeginInvoke(o =>
+            {
+                foreach (var c in chanNum.ToCharArray())
+                {
+                    if (_dialFunctions.ContainsKey(c))
+                    {
+                        Pulse(_dialFunctions[c]);
+                    }
+                    CrestronEnvironment.Sleep(DigitSpacingMs);
+                }
+
+                if (_enterFunction != null)
+                {
+                    Pulse(_enterFunction);
+                }
+                _dialIsRunning = false;
+            });
+
+            if (_setTopBox == null) return;
+
+            OnPresetRecalled(_setTopBox, chanNum);
+        }
+
+        public void Dial(int presetNum, ISetTopBoxNumericKeypad setTopBox)
+        {
+            if (presetNum <= PresetsList.Count)
+            {
+                Dial(PresetsList[presetNum - 1].Channel, setTopBox);
+            }
+        }
+
+        public void Dial(string chanNum, ISetTopBoxNumericKeypad setTopBox)
+        {
+            _dialFunctions = new Dictionary<char, Action<bool>>(10)
+            {
+                {'1', setTopBox.Digit1},
+                {'2', setTopBox.Digit2},
+                {'3', setTopBox.Digit3},
+                {'4', setTopBox.Digit4},
+                {'5', setTopBox.Digit5},
+                {'6', setTopBox.Digit6},
+                {'7', setTopBox.Digit7},
+                {'8', setTopBox.Digit8},
+                {'9', setTopBox.Digit9},
+                {'0', setTopBox.Digit0},
+                {'-', setTopBox.Dash}
+            };
+
+            _enterFunction = setTopBox.KeypadEnter;
+
+            OnPresetRecalled(setTopBox, chanNum);
+
+            Dial(chanNum);
+        }
+
+        private void OnPresetRecalled(ISetTopBoxNumericKeypad setTopBox, string channel)
+        {
+            var handler = PresetRecalled;
+
+            if (handler == null)
+            {
+                return;
+            }
+
+            handler(setTopBox, channel);
+        }
+
+        public void UpdatePreset(int index, PresetChannel preset)
+        {
+            if (index >= PresetsList.Count)
+            {
+                return;
+            }
+
+            PresetsList[index] = preset;
+
+            SavePresets();
+
+            OnPresetsSaved();
+        }
+
+        public void UpdatePresets(List<PresetChannel> presets)
+        {
+            PresetsList = presets;
+
+            SavePresets();
+
+            OnPresetsSaved();
+        }
+
+        private void SavePresets()
+        {
+            try
+            {
+                _fileOps.Enter();
+                var pl = new PresetsList {Channels = PresetsList, Name = Name};
+                var json = JsonConvert.SerializeObject(pl, Formatting.Indented);
+
+                using (var file = File.Open(_filePath, FileMode.Truncate))
+                {
+                    file.Write(json, Encoding.UTF8);
+                }
+            }
+            finally
+            {
+                _fileOps.Leave();
+            }
+            
+        }
+
+        private void OnPresetsSaved()
+        {
+            var handler = PresetsSaved;
+
+            if (handler == null) return;
+
+            handler(PresetsList);
+        }
+
+        private void Pulse(Action<bool> act)
+        {
+            act(true);
+            CrestronEnvironment.Sleep(PulseTime);
+            act(false);
+        }
+    }
+}