using DocTools.Entity.Parameters;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace DocTools.Helper
{
    /// <summary>
    /// This class will load a glabal server configuration
    /// </summary>
    public class ConfigurationManager
    {
        private static IEnumerable<IParameter> _parameters;

        static ConfigurationManager()
        {
            var configFilePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "AppSettings.json");
            _parameters = ParameterSerializer.Deserialize(configFilePath);
        }

        /// <summary>
        /// Get parameter by specifed section name and parameter name
        /// </summary>
        /// <typeparam name="T"></typeparam>
        public static T GetParammeter<T>(string sectionName, string paramName) where T : class
        {
            var parameter = _parameters.FirstOrDefault(x => x.Section == sectionName && x.Name == paramName) as T;
            if (parameter != null)
            {
                return parameter;
            }

            throw new System.ArgumentException($"{sectionName} - {paramName} not set correct");
        }
    }
}