using System.Text;
using SabreTools.Data.Models.PFF;
using SabreTools.Text.Extensions;

namespace SabreTools.Wrappers
{
    public partial class PFF : IPrintable
    {
#if NETCOREAPP
        /// <inheritdoc/>
        public string ExportJSON() => System.Text.Json.JsonSerializer.Serialize(Model, _jsonSerializerOptions);
#endif

        /// <inheritdoc/>
        public void PrintInformation(StringBuilder builder)
        {
            builder.AppendLine("PFF Information:");
            builder.AppendLine("-------------------------");
            builder.AppendLine();

            Print(builder, Model.Header);
            Print(builder, Model.Segments);
            Print(builder, Model.Footer);
        }

        private static void Print(StringBuilder builder, Header header)
        {
            builder.AppendLine("  Header Information:");
            builder.AppendLine("  -------------------------");
            builder.AppendLine(header.HeaderSize, "  Header size");
            builder.AppendLine(header.Signature, "  Signature");
            builder.AppendLine(header.NumberOfFiles, "  Number of files");
            builder.AppendLine(header.FileSegmentSize, "  File segment size");
            builder.AppendLine(header.FileListOffset, "  File list offset");
            builder.AppendLine();
        }

        private static void Print(StringBuilder builder, Segment[] entries)
        {
            builder.AppendLine("  Segments Information:");
            builder.AppendLine("  -------------------------");
            if (entries.Length == 0)
            {
                builder.AppendLine("  No segments");
                builder.AppendLine();
                return;
            }

            for (int i = 0; i < entries.Length; i++)
            {
                var entry = entries[i];

                builder.AppendLine($"  Segment {i}");
                builder.AppendLine(entry.Deleted, "    Deleted");
                builder.AppendLine(entry.FileLocation, "    File location");
                builder.AppendLine(entry.FileSize, "    File size");
                builder.AppendLine(entry.PackedDate, "    Packed date");
                builder.AppendLine(entry.FileName, "    File name");
                builder.AppendLine(entry.ModifiedDate, "    Modified date");
                builder.AppendLine(entry.CompressionLevel, "    Compression level");
            }

            builder.AppendLine();
        }

        private static void Print(StringBuilder builder, Footer footer)
        {
            builder.AppendLine("  Footer Information:");
            builder.AppendLine("  -------------------------");
            builder.AppendLine(footer.SystemIP, "  System IP");
            builder.AppendLine(footer.Reserved, "  Reserved");
            builder.AppendLine(footer.KingTag, "  King tag");
            builder.AppendLine();
        }
    }
}