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

namespace IOTContainer.SQLite
{
    /// <summary>
    /// 字段信息
    /// </summary>
    public class SQLiteColumn
    {
        #region 构造函数
        public SQLiteColumn()
        {
            this.ColumnName = string.Empty;
            this.PrimaryKey = false;
            this.ColumnType = SQLiteColumnType.Text;
            this.AutoIncrement = false;
            this.NotNull = false;
            this.DefaultValue = string.Empty;
        }

        public SQLiteColumn(string colName) : this()
        {
            this.ColumnName = colName;
        }

        public SQLiteColumn(string colName, SQLiteColumnType colDataType) : this(colName)
        {
            this.ColumnType = colDataType;
        }

        public SQLiteColumn(string colName, bool autoIncrement) : this(colName)
        {
            if (autoIncrement)
            {
                this.PrimaryKey = true;
                this.ColumnType = SQLiteColumnType.Integer;
                this.AutoIncrement = true;
            }
            else
            {
                this.PrimaryKey = false;
                this.ColumnType = SQLiteColumnType.Text;
                this.AutoIncrement = false;
            }
        }

        public SQLiteColumn(string colName, SQLiteColumnType colDataType, bool primaryKey,
            bool autoIncrement, bool notNull, string defaultValue) : this(colName)
        {
            if (autoIncrement)
            {
                this.PrimaryKey = true;
                this.ColumnType = SQLiteColumnType.Integer;
                this.AutoIncrement = true;
            }
            else
            {
                this.PrimaryKey = primaryKey;
                this.ColumnType = colDataType;
                this.AutoIncrement = false;
                this.NotNull = notNull;
                this.DefaultValue = defaultValue;
            }
        }
        #endregion

        #region 字段属性
        /// <summary>
        /// 字段名
        /// </summary>
        public string ColumnName { get; set; }

        /// <summary>
        /// 是否有主键
        /// </summary>
        public bool PrimaryKey { get; set; }

        /// <summary>
        /// 类型
        /// </summary>
        public SQLiteColumnType ColumnType { get; set; }

        /// <summary>
        /// 自增
        /// </summary>
        public bool AutoIncrement { get; set; }

        /// <summary>
        /// 不为空
        /// </summary>
        public bool NotNull { get; set; }

        /// <summary>
        /// 默认值
        /// </summary>
        public string DefaultValue { get; set; }
        #endregion
    }
}