using System.Text;
using DotNetSiemensPLCToolBoxLibrary.DataTypes.Blocks;
using DotNetSiemensPLCToolBoxLibrary.DataTypes.Blocks.Step7V5;

namespace S7Explorer.Models
{
    public class BlockItem : ProjectItem
    {
        public ProjectBlockInfo? BlockInfo { get; set; }
        public S7Block? BlockData { get; set; }
        public string BlockType { get; set; } = string.Empty;
        public int BlockNumber { get; set; }
        public string BlockComment { get; set; } = string.Empty;
        public string BlockContent { get; set; } = string.Empty;

        // Override to provide block-specific object for property grid
        public override object? GetDetailsObject()
        {
            return BlockData;
        }

        // Override to provide the appropriate icon
        public override string GetIcon()
        {
            return BlockType switch
            {
                "OB" => "OB",
                "FC" => "FC",
                "FB" => "FB",
                "DB" => "DB",
                "UDT" => "UDT",
                "SFC" => "SFC",
                "SFB" => "SFB",
                _ => "Block"
            };
        }

        // Generate export text for documentation
        public override string GetExportText()
        {
            StringBuilder sb = new StringBuilder();
            sb.AppendLine($"Block: {Name}");
            sb.AppendLine($"Type: {BlockType}{BlockNumber}");

            if (!string.IsNullOrEmpty(BlockComment))
                sb.AppendLine($"Comment: {BlockComment}");

            if (BlockData != null)
            {
                sb.AppendLine($"Author: {BlockData.Author}");
                sb.AppendLine($"Family: {BlockData.Family}");
                sb.AppendLine($"Version: {BlockData.Version}");
                sb.AppendLine($"Last Modified: {BlockData.LastCodeChange}");
            }

            sb.AppendLine();
            sb.AppendLine("// Block Content");
            sb.AppendLine(BlockContent);
            sb.AppendLine();

            return sb.ToString();
        }
    }
}