using System;

namespace Chronos.Extensions
{
    /// <summary>
    /// Universal conversion and parsing methods for strings.
    /// These methods are avaiblable throught the generic object.Convert method:
    /// Feel free to provide additional converns for string or any other object type.
    /// </summary>
    /// <example><code>
    /// var value = "123";
    /// var numeric = value.Convert().ToInt32();
    /// </code></example>
    public static class StringConverter
    {
        #region · Extensions ·

        /// <summary>
        /// Converts a string to an Int32 value
        /// </summary>
        /// <param name="value">The value.</param>
        /// <returns></returns>
        /// <example><code>
        /// var value = "123";
        /// var numeric = value.Convert().ToInt32();
        /// </code></example>
        public static int ToInt32(this IConverter<string> value)
        {
            return ToInt32(value, 0, false);
        }

        /// <summary>
        /// Converts a string to an Int32 value
        /// </summary>
        /// <param name="value">The value.</param>
        /// <param name="defaultValue">The default value.</param>
        /// <param name="ignoreException">if set to <c>true</c> any parsing exception will be ignored.</param>
        /// <returns></returns>
        /// <example><code>
        /// var value = "123";
        /// var numeric = value.Convert().ToInt32();
        /// </code></example>
        public static int ToInt32(this IConverter<string> value, int defaultValue, bool ignoreException)
        {
            if (ignoreException)
            {
                try
                {
                    return ToInt32(value, defaultValue, false);
                }
                catch
                {
                }

                return defaultValue;
            }

            return int.Parse(value.Value);
        }

        #endregion
    }
}