using Dapper;
using Shogi.Api.Repositories.Dto;
using Shogi.Contracts.Api;
using Shogi.Domain.Aggregates;
using System.Data;
using System.Data.SqlClient;

namespace Shogi.Api.Repositories;

public class SessionRepository(IConfiguration configuration)
{
	private readonly string connectionString = configuration.GetConnectionString("ShogiDatabase")
		?? throw new InvalidOperationException("Database connection string not configured.");

	public async Task CreateSession(Session session)
	{
		using var connection = new SqlConnection(this.connectionString);
		await connection.ExecuteAsync(
			"session.CreateSession",
			new
			{
				session.Id,
				Player1Id = session.Player1,
			},
			commandType: CommandType.StoredProcedure);
	}

	public async Task DeleteSession(string id)
	{
		using var connection = new SqlConnection(this.connectionString);
		await connection.ExecuteAsync(
			"session.DeleteSession",
			new { Id = id },
			commandType: CommandType.StoredProcedure);
	}

	public async Task<(SessionDto? Session, IEnumerable<MoveDto> Moves)> ReadSessionAndMoves(string id)
	{
		using var connection = new SqlConnection(this.connectionString);
		var results = await connection.QueryMultipleAsync(
			"session.ReadSession",
			new { Id = id },
			commandType: CommandType.StoredProcedure);

		var sessionDtos = await results.ReadAsync<SessionDto>();
		if (!sessionDtos.Any())
		{
			return (null, []);
		}

		var moveDtos = await results.ReadAsync<MoveDto>();

		return new(sessionDtos.First(), moveDtos);
	}

	public async Task CreateMove(string sessionId, MovePieceCommand command)
	{
		using var connection = new SqlConnection(this.connectionString);
		await connection.ExecuteAsync(
			"session.CreateMove",
			new
			{
				command.To,
				command.From,
				command.IsPromotion,
				PieceFromHand = command.PieceFromHand.ToString(),
				SessionId = sessionId
			},
			commandType: CommandType.StoredProcedure);
	}

	public async Task SetPlayer2(string sessionId, string player2Id)
	{
		using var connection = new SqlConnection(this.connectionString);
		await connection.ExecuteAsync(
				"session.SetPlayer2",
				new
				{
					SessionId = sessionId,
					PlayerId = player2Id
				},
				commandType: CommandType.StoredProcedure);
	}
}