using System.Collections.Generic;
using System.Text.RegularExpressions;

namespace Magic.Core;

/// <summary>
/// 代码生成帮助类
/// </summary>
public static class CodeGenUtil
{
    public static string ConvertDataType(string dataType)
    {
        switch (dataType)
        {
            case "text":
            case "varchar":
            case "char":
            case "nvarchar":
            case "nchar":
            case "timestamp":
                return "string";

            case "int":
                return "int";

            case "smallint":
                return "Int16";

            case "tinyint":
                return "byte";

            case "bigint":
            case "integer"://sqlite数据库
                return "long";

            case "bit":
                return "bool";

            case "money":
            case "smallmoney":
            case "numeric":
            case "decimal":
                return "decimal";

            case "real":
                return "Single";

            case "datetime":
            case "smalldatetime":
                return "DateTime";

            case "float":
                return "double";

            case "image":
            case "binary":
            case "varbinary":
                return "byte[]";

            case "uniqueidentifier":
                return "Guid";

            default:
                return "object";
        }
    }

    /// <summary>
    /// 数据类型转显示类型
    /// </summary>
    /// <param name="dataType"></param>
    /// <returns></returns>
    public static string DataTypeToEff(string dataType)
    {
        if (string.IsNullOrEmpty(dataType)) return "";
        return dataType switch
        {
            "string" => "input",
            "int" => "inputnumber",
            "long" => "input",
            "float" => "input",
            "double" => "input",
            "decimal" => "input",
            "bool" => "switch",
            "Guid" => "input",
            "DateTime" => "datepicker",
            _ => "input",
        };
    }

    // 是否通用字段
    public static bool IsCommonColumn(string columnName)
    {
        var columnList = new List<string>()
        {
            "CreatedTime", "UpdatedTime", "CreatedUserId", "CreatedUserName", "UpdatedUserId", "UpdatedUserName", "IsDeleted"
        };
        return columnList.Contains(columnName);
    }
}