using System.Data;
using Housing.Models;
using Microsoft.Data.SqlClient;

namespace Housing.Services;

public sealed class HousingAssemblyRepository
{
    private readonly DatabaseSettings _settings;

    public HousingAssemblyRepository(DatabaseSettings settings)
    {
        _settings = settings;
    }

    public async Task InsertAsync(HousingAssemblyRecord record)
    {
        using var connection = new SqlConnection(CreateConnectionString());
        using var command = connection.CreateCommand();

        command.CommandText = @"
INSERT INTO dbo.Housing_Assembly
(
    [IC_SN],
    [PCB_Barcode],
    [Maker],
    [Model],
    [Variant_1],
    [Variant_2],
    [Operator],
    [Password],
    [Production_Date],
    [Line],
    [Lot_No],
    [Jig_No],
    [PT_Vol_1],
    [PT_Current_1],
    [Result],
    [Spare_1],
    [Spare_2],
    [Spare_3],
    [Spare_4]
)
VALUES
(
    @IC_SN,
    @PCB_Barcode,
    @Maker,
    @Model,
    @Variant_1,
    @Variant_2,
    @Operator,
    @Password,
    @Production_Date,
    @Line,
    @Lot_No,
    @Jig_No,
    @PT_Vol_1,
    @PT_Current_1,
    @Result,
    @Spare_1,
    @Spare_2,
    @Spare_3,
    @Spare_4
);";

        AddNVarChar(command, "@IC_SN", 50, record.IcSn);
        AddNVarChar(command, "@PCB_Barcode", 50, record.PcbBarcode);
        AddNVarChar(command, "@Maker", 10, record.Maker);
        AddNVarChar(command, "@Model", 10, record.Model);
        AddNVarChar(command, "@Variant_1", 10, record.Variant1);
        AddNVarChar(command, "@Variant_2", 10, record.Variant2);
        AddNVarChar(command, "@Operator", 10, record.Operator);
        AddNVarChar(command, "@Password", 10, record.Password);
        command.Parameters.Add(new SqlParameter("@Production_Date", SqlDbType.DateTime2) { Value = record.ProductionDate });
        AddNVarChar(command, "@Line", 5, record.Line);
        AddNVarChar(command, "@Lot_No", 8, record.LotNo);
        AddNVarChar(command, "@Jig_No", 10, record.JigNo);
        AddDecimal(command, "@PT_Vol_1", record.PtVol1);
        AddDecimal(command, "@PT_Current_1", record.PtCurrent1);
        AddNVarChar(command, "@Result", 5, record.Result);
        AddNVarChar(command, "@Spare_1", 30, record.Spare1);
        AddNVarChar(command, "@Spare_2", 30, record.Spare2);
        AddNVarChar(command, "@Spare_3", 30, record.Spare3);
        AddNVarChar(command, "@Spare_4", 30, record.Spare4);

        await connection.OpenAsync();
        await command.ExecuteNonQueryAsync();
    }

    private string CreateConnectionString()
    {
        if (string.IsNullOrWhiteSpace(_settings.Ip) ||
            string.IsNullOrWhiteSpace(_settings.Database) ||
            string.IsNullOrWhiteSpace(_settings.DbId))
        {
            throw new InvalidOperationException("Database.ini의 IP, Database, DbId 값을 확인하세요.");
        }

        var builder = new SqlConnectionStringBuilder
        {
            DataSource = _settings.Ip,
            InitialCatalog = _settings.Database,
            UserID = _settings.DbId,
            Password = _settings.DbPw,
            Encrypt = _settings.Encrypt,
            TrustServerCertificate = _settings.TrustServerCertificate,
            ConnectTimeout = _settings.Timeout
        };

        return builder.ConnectionString;
    }

    private static void AddNVarChar(SqlCommand command, string name, int size, string value)
    {
        command.Parameters.Add(new SqlParameter(name, SqlDbType.NVarChar, size) { Value = value });
    }

    private static void AddDecimal(SqlCommand command, string name, decimal value)
    {
        var parameter = new SqlParameter(name, SqlDbType.Decimal)
        {
            Precision = 3,
            Scale = 2,
            Value = value
        };

        command.Parameters.Add(parameter);
    }
}