const router = require('express').Router();
const {paramFail, ServerError, success, controlError, searchSuccess} = require("../tools/result");
const c = require("../control/c_solution");
const typeTool = require("../tools/typeTool_cjs");
const log = require("../logger").logger("r_solution","info");


/**
 * 加载解决方案
 * @param key query 解决方案类别
 * @param p query 页码
 * @param l query 每页数量
 */
router.get('/load',
  async (req, res) => {
    try{
      let err, result;
      let {key, l, p} = req.query;
      if(!key){
        paramFail(res, "key is required");
        return;
      }
      log.info(key);
      [err, result] = await c.loadSolution(key, p, l);
      if(err){ return controlError(res, err, null);}
      success(res, result);
    }catch (e) {
      ServerError(res, null, e.message);
    }
});

router.get(
  '/search',
  async (req, res) => {
    try{
      let err, result;
      let {key, l, p, type} = req.query;
      type = type || 'all';
      l = typeTool.toNumber(l);
      p = typeTool.toNumber(p);
      log.info(`page=${p},limit=${l}`);
      [err, result] = await c.searchSolution(type, key, p, l);
      if(err){
        return controlError(res, err, null);}
      log.info(`result len=${result.arr.length}`)
      searchSuccess(res,
        result.arr,
        result.total,
        result.page,
        result.limit,
      );
    }catch (e) {
      ServerError(res, null, e.message);
    }
  });

router.get('/:id', async (req, res) => {
  try{
    let err, result;
    let {id} = req.params;
    id = typeTool.toNumber(id);
    if(!id){
      paramFail(res, "id is required");
      return;
    }
    log.info(`get solution info ${id}`);
    [err, result] = await c.getSolutionInfo(id);
    if(err){ return controlError(res, err, null);}
    success(res, result);
  }catch (e) {
    ServerError(res, null, e.message);
  }
});

module.exports = router;