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package site.sorghum.anno.db;

import lombok.*;

import java.util.ArrayList;
import java.util.List;

/**
 * 表参数
 *
 * @author sorghum
 * @since 2023/07/08
 */
@Data
@NoArgsConstructor
@AllArgsConstructor
@Builder
public class TableParam {
    /**
     * 实体类
     */
    Class clazz;
    /**
     * 表名
     */
    String tableName;

    /**
     * 列名
     */
    List columns = new ArrayList<>();

    /**
     * 删除参数
     */
    DbRemove dbRemove;

    /**
     * 排序参数
     */
    DbOrderBy dbOrderBy = new DbOrderBy();


    /**
     * 虚拟表
     */
    boolean virtualTable = false;

    /**
     * 指定数据名
     */
    private String dbName;

    /**
     * 连表信息
     */
    List joinTables = new ArrayList<>();

    public void addColumn(String column) {
        if (this.columns == null) {
            this.columns = new ArrayList<>();
        }
        this.columns.add(column);
    }

    public String getColumnStr() {
        String column = String.join(",", this.getColumns());
        if (column.isEmpty()) {
            column = "*";
        }
        return column;
    }

    /**
     * 设置实体类
     *
     * @param clazz 实体类
     */
    public void setClazz(Class clazz) {
        this.clazz = (Class) clazz;
    }

    @Data
    @EqualsAndHashCode
    @AllArgsConstructor
    @Builder
    public static class JoinTable {

        /**
         * 表名
         */
        String tableName;

        /**
         * 别名
         */
        String alias;

        /**
         * 1 left join 2 right join 3 inner join
         */
        int joinType = 1;

        /**
         * 连接条件
         */
        String joinCondition;
    }

}