using BPASmartClient.Model;
using System.Xml.Linq;
using System.Xml.XPath;

namespace BPASmartClient.Business
{
    public class ConfigMgr : IPlugin
    {
        private List<DeviceConfig> deviceConfigs;
        public void Dispose()
        {
        }

        public void Initialize()
        {
            InitDeviceModel();
        }

        public List<DeviceConfig> GetDeviceConfigs()
        {
            if (null == deviceConfigs)
                InitDeviceModel();
            return deviceConfigs;
        }

        private void InitDeviceModel()
        {
            deviceConfigs = new List<DeviceConfig>();
            var devicePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "DeviceInfo.xml");
            var xdoc = XDocument.Load(devicePath);
            var devices = xdoc.XPathSelectElements("//Device");
            foreach (var device in devices)
            {
                DeviceConfig deviceConfig = new DeviceConfig();
                deviceConfig.Name = device.Attribute("Name").Value;
                deviceConfig.Module = device.Attribute("Module").Value;
                deviceConfig.DeviceId = device.Attribute("DeviceId").Value;

                foreach (var peripheralEl in device.XPathSelectElements("//Peripheral"))
                {
                    BPASmartClient.Model.Peripheral peripheral = new BPASmartClient.Model.Peripheral();
                    peripheral.Module = peripheralEl.Attribute("Module").Value;
                    foreach (XElement parameter in peripheralEl.Element("Parameters").Elements())
                    {
                        peripheral.Parameters.Add(parameter.Name.LocalName, parameter.Value);
                    }
                    deviceConfig.Peripherals.Add(peripheral);
                }
                deviceConfigs.Add(deviceConfig);
            }
        }

    }
}