package com.cowr.common.base;

import com.alibaba.fastjson.annotation.JSONField;
import com.jfinal.log.Log;
import com.jfinal.plugin.activerecord.IBean;
import com.jfinal.plugin.activerecord.Model;
import com.jfinal.plugin.activerecord.Table;
import com.cowr.common.Const;
import com.cowr.common.utils.StrUtil;

public abstract class BaseModel<M extends Model<M>> extends Model<M> implements IBean {
    private static final Log    log       = Log.getLog(BaseModel.class);
    private static final String tablename = "";

    public String getTablename() {
        return tablename;
    }

    /**
     * 判断是否存在该字段
     *
     * @param colunm
     * @return
     */
    public boolean hasColunm(String colunm) {
        return _getTable().getColumnTypeMap().containsKey(colunm);
    }

    /**
     * 判断是否有 del 字段
     *
     * @return
     */
    public boolean hasDelKey() {
        return hasColunm(Const.LOGIC_DEL_KEY);
    }

    @JSONField(serialize = false)
    public String[] getPKey() {
        return _getTable().getPrimaryKey();
    }

    /**
     * 按主键查找
     *
     * @return
     */
    public M findByPk() {
        Table    table = _getTable();
        String[] pKeys = table.getPrimaryKey();

        if (pKeys == null) {
            log.debug(table.getName() + " 未找到主键字段");
            pKeys = new String[0];
        }
        Object[] vals = new Object[pKeys.length];

        for (int i = 0; i < pKeys.length; i++) {
            vals[i] = get(pKeys[i]);
        }

        if (vals.length == 1) {
            return findById(vals[0]);
        } else {
            return findByIds(vals);
        }
    }

    /**
     * 按主键检查是否存在
     *
     * @return boolean
     */
    public boolean checkExistsByPk() {
        return findByPk() != null;
    }

    /**
     * 按字段查询 model
     *
     * @param columns
     * @return
     */
    public M findByColumns(String... columns) {
        Object[] vals = new Object[columns.length];

        for (int i = 0; i < columns.length; i++) {
            vals[i] = get(columns[i]);
        }
        String sql = StrUtil.findFirstByColumnsSql(_getTable().getName(), columns);
        return findFirst(sql, vals);
    }

    /**
     * 按字段查询对象是否存在
     *
     * @param columns
     * @return
     */
    public boolean checkDuplicate(String... columns) {
        return findByColumns(columns) != null;
    }

    /**
     * 浅拷贝
     *
     * @return
     */
    public M clone() {
        try {
            Model<?> ar = this.getClass().newInstance();
            ar._setAttrs(this._getAttrs());

            return (M) ar;
        } catch (InstantiationException | IllegalAccessException e) {
            log.error(e.getMessage(), e);
        }

        return null;
    }
}