package web.controller;

import db.form.DBAction;
import db.form.Type;
import db.model.AbstractModel;
import org.springframework.dao.DataAccessException;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import web.html.Table;
import web.service.BaseService;

import java.util.List;

public abstract class TableController<T extends AbstractModel,A extends T,E extends BaseService,B extends Table<T>> extends BaseController<T,A,E> {

    @RequestMapping("table")
    public String find(Model model,@ModelAttribute("command") A command,B pageResult) {
        DBAction action=DBAction.R;
        log.info(tableName+ "进行批量" + action.getCh() + "操作请求");
        B result = getNewTable();
        if(checkAction(action)) {
            try {
                Long rowCount=rowCount(command);
                if(rowCount>0) {

                    List list = find(command, pageResult.getCurrentPage()*pageResult.getPageSize(), pageResult.getPageSize());
                    result.setCount(rowCount);
                    result.setCurrentPage(pageResult.getCurrentPage()+1);
                    result.setDatas(list);
                    result.setPageSize(pageResult.getPageSize());
                    result.setType(Type.success);
                    result.setPages();
                }else{
                    result.setType(Type.fail);
                    result.setErrorMsg("没有记录");
                }
            } catch (DataAccessException e) {
                log.error(e);
                result.setType(Type.fail);
                result.setErrorMsg("非法操作");
            }
        }else{
            result.setType(Type.fail);
            result.setErrorMsg(tableName + "不允许" + action.getCh() + "操作");
        }

        model.addAttribute("datas", result);
        setModel(model);
        return "table";
    }

    protected void setModel(Model model){

    }

    protected abstract B getNewTable();

    protected List find(A command, Integer firstResult,Integer maxResults){
        return service.find(getDetachedCriteria(command), firstResult, maxResults);
    }

    protected long rowCount(A command){
        return service.rowCount(getDetachedCriteria(command));
    }

}