using JNPF.DependencyInjection;

namespace JNPF.Systems.Entitys.Dto.Database;

/// <summary>
/// 数据库表映射实体信息.
/// </summary>
[SuppressSniffer]
public class DbEntityInfo
{
    public string tableName { get; set; } = string.Empty;

    public string descrip { get; set; } = string.Empty;

    public string clsName { get; set; } = string.Empty;

    public string nsName { get; set; } = "Tnb.Entities";

    public string pkType { get; set; } = "string";

    public string pkName { get; set; } = "id";

    public List<DbEntityPropInfo> columns { get; set; } = new List<DbEntityPropInfo>();
    public List<string> ignoreCols { get; set; } = new List<string>();

    public string GetInherit()
    {
        return pkName == "id" ? $"BaseEntity<{pkType}>" : "IEntity";
    }
    public string GetConstruct()
    {
        if (pkName == "id")
        {
            string str = pkType switch
            {
                "string" => "id = SnowflakeIdHelper.NextId();",
                "long" => "id = YitIdHelper.NextId();",
                _ => string.Empty
            };
            return str;
        }
        return string.Empty;
    }

}

/// <summary>
/// 数据库表映射实体属性信息.
/// </summary>
[SuppressSniffer]
public class DbEntityPropInfo
{
    public string colName { get; set; }

    public string dataType { get; set; }

    public string csType { get; set; }

    public string propName { get; set; }

    public Type propType { get; set; }

    public int length { get; set; }

    public string descrip { get; set; }

    public string defaultValue { get; set; }

    public bool allowNull { get; set; }

    public bool identity { get; set; }

    public bool primaryKey { get; set; }

    public bool isArray { get; set; }

    public bool isJson { get; set; }

    public object value { get; set; }

    public int digits { get; set; }

    public int scale { get; set; }

    public string GetPropType()
    {
        string propType = csType;
        if (allowNull)
            propType = csType + "?";
        return propType;
    }
    public virtual string GetPropAttr()
    {
        List<string> sugarAttrs = new List<string>();
        if (primaryKey)
            sugarAttrs.Add("IsPrimaryKey = true");
        if (identity)
            sugarAttrs.Add("IsIdentity = true");
        //if (allowNull)
        //    sugarAttrs.Add("IsNullable = true");
        if (colName != propName)
            sugarAttrs.Add($"ColumnName = \"{colName}\"");
        if (sugarAttrs.Count > 0)
            return $"    [SugarColumn({string.Join(", ", sugarAttrs)})]\n";

        return string.Empty;
    }
    public string GetDefaultValue()
    {
        if (allowNull) return string.Empty;

        string str = csType switch
        {
            "string" => " = string.Empty;",
            "DateTime" => " = DateTime.Now;",
            _ => string.Empty
        };

        return str;
    }

}