using Quadarax.Foundation.Core.QConsole.Argument;
using Quadarax.Foundation.Core.QConsole.Command.Base;

namespace qdr.app.tools.qfu.Commands.Aspects
{
    internal class ExcludeAspect
    {
        #region *** Constants ***
        private const string ARG_EXCLUDE_SEP = "|";
        public const string ARG_EXCLUDE_NAME = "exclude";
        private const string ARG_EXCLUDE_HINT = "exclude";
        private const string ARG_EXCLUDE_DESCR = "One or more files or search patterns to exclude separated by character pipe (" + ARG_EXCLUDE_SEP + "). Example: *.tmp|temp*|backup.jpg";
        #endregion

        #region *** Public Operations ***
        public static IEnumerable<AbstractArgument> SetupArguments()
        {
            return
            [
                new NamedArgument(ARG_EXCLUDE_NAME, ARG_EXCLUDE_DESCR, ARG_EXCLUDE_HINT, Quadarax.Foundation.Core.QConsole.Value.TypeValuesEnum.String, string.Empty, false)
            ];
        }

        public static string[] GetExcludePatterns(AbstractCommand context)
        {
            if (context == null)
                throw new ArgumentNullException(nameof(context), "Command context cannot be null.");

            var excludeArgument = context.Arguments.FirstOrDefault(x => string.Equals(x.Code, ARG_EXCLUDE_NAME));
            if (excludeArgument?.Value.Get() == null)
                return Array.Empty<string>(); // No exclude patterns

            var excludeValue = excludeArgument.Value.Get()?.ToString();
            if (string.IsNullOrWhiteSpace(excludeValue))
                return Array.Empty<string>(); // No exclude patterns

            return ParseExcludePatterns(excludeValue);
        }

        public static string[] ParseExcludePatterns(string excludeArgument)
        {
            if (string.IsNullOrWhiteSpace(excludeArgument))
                return Array.Empty<string>();

            return excludeArgument.Split(new[] { ARG_EXCLUDE_SEP }, StringSplitOptions.RemoveEmptyEntries)
                                 .Select(f => f.Trim())
                                 .Where(f => !string.IsNullOrEmpty(f))
                                 .ToArray();
        }
        #endregion
    }
}