using Examine;
using Umbraco.Cms.Core.Events;
using Umbraco.Cms.Core.Notifications;

namespace HunzikerIntranet.HQM.Umbraco.Infrastructure.Examine
{
    public class PDFIndexPathTransformer : INotificationHandler<UmbracoApplicationStartedNotification>
    {
        private readonly IExamineManager _examineManager;
        private readonly ILogger<PDFIndexPathTransformer> _logger;

        public PDFIndexPathTransformer(IExamineManager examineManager, ILogger<PDFIndexPathTransformer> logger)
        {
            _examineManager = examineManager;
            _logger = logger;
        }

        public void Handle(UmbracoApplicationStartedNotification notification)
        {
            if (!_examineManager.TryGetIndex("PDFIndex", out var pdfIndex))
            {
                _logger.LogError("PDFIndex not found in Examine.");
                return;
            }

            pdfIndex.TransformingIndexValues += IndexOnTransformingIndexValues;
        }

        private void IndexOnTransformingIndexValues(object? sender, IndexingItemEventArgs e)
        {
            if (!e.ValueSet.Values.ContainsKey("path")) return;

            var rawPath = e.ValueSet.Values["path"].FirstOrDefault()?.ToString();
            if (string.IsNullOrEmpty(rawPath)) return;

            var searchablePath = rawPath.Replace(",", " ");

            var indexFields = e.ValueSet.Values.ToDictionary(x => x.Key, x => x.Value.ToList());
            indexFields["searchablePath"] = new List<object> { searchablePath };

            e.SetValues(indexFields.ToDictionary(x => x.Key, x => (IEnumerable<object>)x.Value));
        }
    }
}