using AICore.Context.Summary;
using AICore.Context.SummaryParser;
using BS.Shared;
using BS.Shared.Core;
using BS.Shared.Exceptions;
using BS.Shared.Translation;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Text.Json;

namespace AICore.Prompt.SystemInstruction
{
	public class AiConversationSystemInstructionBuilder : BaseSystemInstructionBuilder
	{
		public AiConversationSystemInstructionBuilder(string prompt_path) : base(prompt_path) {
		
		}

		public string CreateSystemInstructions(AiContextType uicontext, BaseContextSummary context, AiDataContextType aiDataContextType)
		{
			var sb = new StringBuilder();

			sb.AppendLine(getCustomSystemPrompt("customSystemInstruction.txt"));

			sb.AppendLine("### **Allgemein**");
			sb.AppendLine($"- Aktuelle Zeit: {DateTime.Now}");
			sb.AppendLine();
			sb.AppendLine("### **Ansicht**");
			sb.AppendLine($"- Ich befinde mich aktuell in der \"{EnumTranslations.Ai2Translation[uicontext]}\" meiner Anwendung.");
			sb.AppendLine($"- Es ist kein Filter gesetzt.");
			sb.AppendLine();
			sb.AppendLine("### **Daten**");

			if (context?.Context is null)
			{
				sb.AppendLine("Dir wurden keine Daten bereitgestellt.");
			}
			else
			{
				sb.AppendLine("Du erhälst folgende Daten:");

				var parser = GetParser(aiDataContextType);				
				var parsed = parser.Parse(uicontext, context);

				sb.AppendLine(parsed);
			}

			return sb.ToString();
		}

		private BaseContextSummaryParser GetParser(AiDataContextType aiDataContextType)
		{
			switch (aiDataContextType)	
			{
				case AiDataContextType.json:
					return new JsonContextSummaryParser();
				case AiDataContextType.csv:
					return new CsvContextSummaryParser();
				case AiDataContextType.tsv:
					return new CsvContextSummaryParser("\t");
				case AiDataContextType.csv2:
					return new CsvContextSummaryParser(";", true);
				case AiDataContextType.tsv2:
					return new CsvContextSummaryParser("\t", true);
				default:
					break;
			}

			throw BeWoNotImplementedException.CreateFromEnum(aiDataContextType);
		}
	}
}