using Microsoft.Data.SqlClient;
using MLL;
using System;
using System.Collections.Generic;
using System.Data;

namespace DALL
{
    public class DALEcfCfg
    {
        private readonly string connectionString;

        public DALEcfCfg(string conexao)
        {
            connectionString = conexao;
        }

        #region CRUD

        public bool Inserir(ModeloEcfCfg modelo)
        {
            try
            {
                using SqlConnection conn = new(connectionString);

                string sql = @"
                INSERT INTO ECF_CFG
                (
                    MODELO,
                    PORTA,
                    TEM_GAVETA,
                    INDICE_AL_SERV
                )
                VALUES
                (
                    @MODELO,
                    @PORTA,
                    @TEM_GAVETA,
                    @INDICE_AL_SERV
                )";

                using SqlCommand cmd = new(sql, conn);

                PreencherParametros(cmd, modelo);

                conn.Open();

                return cmd.ExecuteNonQuery() > 0;
            }
            catch
            {
                return false;
            }
        }

        public bool Alterar(ModeloEcfCfg modelo)
        {
            try
            {
                using SqlConnection conn = new(connectionString);

                string sql = @"
                UPDATE ECF_CFG
                SET
                    CODIGO=@CODIGO,
                    MODELO=@MODELO,
                    PORTA=@PORTA,
                    TEM_GAVETA=@TEM_GAVETA,
                    INDICE_AL_SERV=@INDICE_AL_SERV
                WHERE ID_EFC_CFG=@ID_EFC_CFG";

                using SqlCommand cmd = new(sql, conn);

                PreencherParametros(cmd, modelo);

                cmd.Parameters.AddWithValue("@CODIGO", modelo.CODIGO);
                cmd.Parameters.AddWithValue("@ID_EFC_CFG", modelo.ID_EFC_CFG);

                conn.Open();

                return cmd.ExecuteNonQuery() > 0;
            }
            catch
            {
                return false;
            }
        }

        public bool Excluir(int id)
        {
            try
            {
                using SqlConnection conn = new(connectionString);

                string sql =
                    @"DELETE FROM ECF_CFG
                      WHERE ID_EFC_CFG=@ID";

                using SqlCommand cmd = new(sql, conn);

                cmd.Parameters.AddWithValue("@ID", id);

                conn.Open();

                return cmd.ExecuteNonQuery() > 0;
            }
            catch
            {
                return false;
            }
        }

        public ModeloEcfCfg? Carregar(int id)
        {
            using SqlConnection conn = new(connectionString);

            string sql =
                @"SELECT *
                  FROM ECF_CFG
                  WHERE ID_EFC_CFG=@ID";

            using SqlCommand cmd = new(sql, conn);

            cmd.Parameters.AddWithValue("@ID", id);

            conn.Open();

            using SqlDataReader dr = cmd.ExecuteReader();

            if (dr.Read())
                return PreencherModelo(dr);

            return null;
        }

        public List<ModeloEcfCfg> Listar(
            string? modelo = null,
            string? porta = null,
            string? temGaveta = null)
        {
            List<ModeloEcfCfg> lista = [];

            using SqlConnection conn = new(connectionString);

            string sql = @"
            SELECT *
            FROM ECF_CFG
            WHERE 1=1";

            using SqlCommand cmd = new();

            cmd.Connection = conn;

            if (!string.IsNullOrWhiteSpace(modelo))
            {
                sql += " AND MODELO LIKE @MODELO";

                cmd.Parameters.AddWithValue(
                    "@MODELO",
                    "%" + modelo + "%");
            }

            if (!string.IsNullOrWhiteSpace(porta))
            {
                sql += " AND PORTA LIKE @PORTA";

                cmd.Parameters.AddWithValue(
                    "@PORTA",
                    "%" + porta + "%");
            }

            if (!string.IsNullOrWhiteSpace(temGaveta))
            {
                sql += " AND TEM_GAVETA=@TEM_GAVETA";

                cmd.Parameters.AddWithValue(
                    "@TEM_GAVETA",
                    temGaveta);
            }

            sql += " ORDER BY ID_EFC_CFG DESC";

            cmd.CommandText = sql;

            conn.Open();

            using SqlDataReader dr = cmd.ExecuteReader();

            while (dr.Read())
            {
                lista.Add(
                    PreencherModelo(dr));
            }

            return lista;
        }

        #endregion

        #region Dashboard

        public DataTable Dashboard()
        {
            using SqlConnection conn = new(connectionString);

            string sql = @"
            SELECT
                COUNT(*) TOTAL_IMPRESSORAS,
                SUM(
                    CASE
                        WHEN TEM_GAVETA='SIM'
                        THEN 1
                        ELSE 0
                    END
                ) COM_GAVETA
            FROM ECF_CFG";

            using SqlDataAdapter da =
                new(sql, conn);

            DataTable dt = new();

            da.Fill(dt);

            return dt;
        }

        #endregion

        #region Helpers

        private static ModeloEcfCfg PreencherModelo(SqlDataReader dr)
        {
            return new ModeloEcfCfg
            {
                ID_EFC_CFG =
                    Convert.ToInt32(dr["ID_EFC_CFG"]),

                CODIGO =
                    Convert.ToString(dr["CODIGO"])
                    ?? string.Empty,

                MODELO =
                    Convert.ToString(dr["MODELO"])
                    ?? string.Empty,

                PORTA =
                    Convert.ToString(dr["PORTA"])
                    ?? string.Empty,

                TEM_GAVETA =
                    Convert.ToString(dr["TEM_GAVETA"])
                    ?? string.Empty,

                INDICE_AL_SERV =
                    Convert.ToString(dr["INDICE_AL_SERV"])
                    ?? string.Empty
            };
        }

        private static void PreencherParametros(
            SqlCommand cmd,
            ModeloEcfCfg modelo)
        {
            cmd.Parameters.AddWithValue(
                "@MODELO",
                modelo.MODELO);

            cmd.Parameters.AddWithValue(
                "@PORTA",
                modelo.PORTA);

            cmd.Parameters.AddWithValue(
                "@TEM_GAVETA",
                modelo.TEM_GAVETA);

            cmd.Parameters.AddWithValue(
                "@INDICE_AL_SERV",
                modelo.INDICE_AL_SERV);
        }

        #endregion
    }
}