using System.IO;
using System.Runtime.InteropServices;
using System.Text;

namespace ini
{
    class iniFile
    {

        #region dll imports
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section,
            string key, string val, string filePath);
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section,
                 string key, string def, StringBuilder retVal,
            int size, string filePath);
        #endregion


        /// <summary>
        /// The path to the ini file
        /// </summary>
        public string path;
        /// <summary>
        /// INIFile Constructor.
        /// If the file doesn't exists, it will be created
        /// </summary>
        /// <PARAM name="path"></PARAM>
        /// Path of the ini file
        public iniFile(string inipath)
        {
                path = inipath;
        }
        /// <summary>
        /// INIFile Constructor.
        /// Be sure to add the path
        /// </summary>
        public iniFile()
        {
        }

        /// <summary>
        /// Read Data from the INI File
        /// </summary>
        /// <PARAM name="section">section name</PARAM>
        /// Section name
        /// <PARAM name="key">key value</PARAM>
        /// Key Name
        /// <returns>returns the value for the specified key as a string</returns>
        public string GetValue(string section, string key)
        {
            StringBuilder temp = new StringBuilder(' ', 1024);
            int i = GetPrivateProfileString(section, key, null, temp, 1024, path);
            return temp.ToString();
        }
        /// <summary>
        /// Read Data from the INI File
        /// </summary>
        /// <PARAM name="section">section name</PARAM>
        /// Section name
        /// <PARAM name="key">key value</PARAM>
        /// Key Name
        /// <returns>returns the value for the specified key as a string</returns>
        public string GetValue(string section, string key, string iniPath)
        {
            StringBuilder temp = new StringBuilder(' ', 1024);
            int i = GetPrivateProfileString(section, key, null, temp, 1024, iniPath);
            return temp.ToString();
        }
        /// <summary>
        /// Write Data to the INI File
        /// </summary>
        /// <PARAM name="section"></PARAM>
        /// Section name
        /// <PARAM name="key"></PARAM>
        /// Key Name
        /// <PARAM name="value"></PARAM>
        /// Value Name
        /// /// <PARAM name="iniPath"></PARAM>
        /// Value Name
        public void WriteValue(string section, string key, string value)
        {
            WritePrivateProfileString(section, key, value, path);
        }
        /// <summary>
        /// Write Data to the INI File
        /// </summary>
        /// <PARAM name="section"></PARAM>
        /// Section name
        /// <PARAM name="key"></PARAM>
        /// Key Name
        /// <PARAM name="value"></PARAM>
        /// Value Name
        /// /// <PARAM name="iniPath"></PARAM>
        /// Value Name
        public void WriteValue(string section, string key, string value, string iniPath)
        {
            WritePrivateProfileString(section, key, value, iniPath);
        }

        /// <summary>
        /// Check to find if the section exists in the current ini file
        /// </summary>
        /// <PARAM name="section"></PARAM>
        public bool isSectionExsists(string section)
        {

            if (File.Exists(path))
            {
                StreamReader sr = new StreamReader(path);

                while (!sr.EndOfStream)
                {
                    if (sr.ReadLine() == "[" + section + "]")
                    {
                        sr.Close();
                        sr.Dispose();

                        return true;
                    }
                }

                sr.Close();
                sr.Dispose();

                return false;
            }
            else
                throw new FileNotFoundException();  
        }
        /// <summary>
        /// Check to find if the section exists in the current ini file
        /// </summary>
        /// <PARAM name="section"></PARAM>
        /// /// <PARAM name="iniPath"></PARAM>
        public bool isSectionExsists(string section, string iniPath)
        {

            if (File.Exists(iniPath))
            {
                StreamReader sr = new StreamReader(iniPath);

                while (!sr.EndOfStream)
                {
                    if (sr.ReadLine() == "[" + section + "]")
                    {
                        sr.Close();
                        sr.Dispose();

                        return true;
                    }
                }

                sr.Close();
                sr.Dispose();

                return false;
            }
            else
                throw new FileNotFoundException();
        }

        /*
        /// <summary>
        /// Check to find if the key exists in the specified section.
        /// BROKEN!
        /// </summary>
        /// <PARAM name="section"></PARAM>
        /// <PARAM name="key"></PARAM>
        public bool isKeyExsists(string section, string key)
        {
            return false;
        }*/
    }
}