spider-task.js
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const _ = require('lodash');
const spider = require('../libs/spider');
const report = require('../libs/report');
const sknsData = require('../data/skns.json');
const legoData = require('../data/lego.json');
const {mysqlPool} = require('../libs/mysql');
const {logger} = require('../libs/logger');
const {sendMessage} = require('../libs/influx-report');
const {getSpecialSizeProducts, getSize} = require('../utils');
// const {SknRecord} = require('../models');
// const md5 = require('yoho-md5');
// async function clearChannelSknCompare() {
// const newSkns = sknsData.map(skn => skn.yhId);
// const deleteRows = await mysqlPool.delete(`delete from \`channel_sku_compare\` where product_id not in (${newSkns.join(',')})`);
// logger.warn(`[spider-task] 清理了 ${deleteRows} 条`);
// }
module.exports = async(time) => {
const specialSizeProducts = await getSpecialSizeProducts();
const sizeData = await mysqlPool.query('select `size_name`,min(`id`) as id from `size` where `size_name` <> \'-\' group by `size_name`');
const sizeRelation = {};
sizeData.forEach(size => {
sizeRelation[_.trim(size.size_name)] = {
sizeId: size.id
};
});
// 另外有一个全量任务，这里不能删掉sknsData以外的skn
// const record = await SknRecord.findOne();
// const leastMd5 = md5(JSON.stringify(sknsData));
// if (!record || record.md5 !== leastMd5) { // skns有更新
// logger.warn('[spider-task] 更新skns');
// clearChannelSknCompare();
// if (record) {
// SknRecord.removeById(record._id);
// }
// SknRecord.insert({
// md5: leastMd5
// });
// }
spider(sknsData.map(p => p.productId), 'http://du.hupu.com/mapi/product/detail', {}, 1)
.forEach(promise => promise.then(result => {
if (result.status !== 200 && !_.has(result, 'data.detail')) {
logger.warn(`[spider-task]爬取失败记录: ${JSON.stringify(result)}`);
return;
}
const {data: {detail, sizeList}} = result;
const yhProduct = sknsData.find(p => p.productId === detail.productId);
const hrtime = process.hrtime();
const timestamp = parseInt(Date.now() / 1000, 10) * 1000000000;
const isSpecialSize = Boolean(specialSizeProducts[yhProduct.yhId]);
sizeList.forEach(s => {
if (_.isPlainObject(s.item) && s.item.price > 0) {
if (sizeList.length === 1) {
const isLego = legoData.some(lego => lego.productId === detail.productId);
if (isLego) {
s.size = 'F';
console.log(`is lego size = F, ${detail.productId}`);
}
}
const find = getSize(s.size, sizeRelation, isSpecialSize);
if (!find) {
return logger.error(`[spider-task]爬取尺码对应关系未找到: ${JSON.stringify(s)}`);
}
if (isSpecialSize) {
console.log(`=================>spider-task yhId: ${yhProduct.yhId}, duId: ${detail.productId} size: ${s.size} => ${find.relationSize || s.size}, ${find.sizeId}`);
}
const highRate = 0.02;
report({
productId: yhProduct.yhId,
sizeId: find.sizeId,
price: s.item.price / 100,
highRate,
time
}).then(() => {
const reportTime = timestamp + process.hrtime(hrtime)[1];
logger.info(`[spider-task]更新sku价格成功记录, duId:${detail.productId}, yhId: ${yhProduct.yhId}, sizeId: ${find.sizeId}, time: ${time}, highRate: ${highRate}`);
sendMessage(1, reportTime);
}).catch(error => {
logger.error(error.message);
});
}
});
}));
};