const express = require('express')
const bodyParser = require('body-parser')
const  {getRouterFunc,drawRouterFunc,clearRouterFunc} = require('./lib/routePath.js')
const app = express()
app.use(bodyParser.urlencoded({ extended: false }))

app.get('/navigation', (req, res) => {
    let startlng = req.query.startlng
    let startlat = req.query.startlat
    let endlng = req.query.endlng
    let endlat = req.query.endlat
    let areaname = req.query.areaname
    let router = req.query.router
    if(!startlng || !startlat || !endlng || !endlat || !areaname){
        res.json({
            code: 400,
            msg: '参数缺失'
        })
        return
    }
    if(router!== 'all' && router!== 'postgis'){
        res.json({
            code: 400,
            msg: 'router字段为all或postgis'
        })
        return
    }
    if(areaname!== 'pingyixian' && areaname!== 'feixian' && areaname!== 'yishuixian'){
        res.json({
            code: 400,
            msg: 'areaname字段为pingyixian或feixian或yishuixian'
        })
        return
    }
    let params = {
        startlng: parseFloat(startlng),
        startlat: parseFloat(startlat),
        endlng: parseFloat(endlng),
        endlat: parseFloat(endlat),
        areaname: areaname,
        router: router
      };
      getRouterFunc(params,router).then(r => {
        res.json({
            code: 200,
            msg: 'success',
            data:r
        })
      }).catch(e => {
        res.json({
            code: 500,
            msg: '接口错误'
        })
      })
})

app.listen(3000, () => {
    console.log('Server is running ,http://0.0.0.0:3000')
})