'use strict'

process.chdir(__dirname)

const titbit = require('titbit')
const fs = require('fs')
const pg = require('pg')
const dbconfig = require('./dbconfig.js')
const wxkey = require('./wxkey.js');
const tbloader = require('titbit-loader');
const token = require('titbit-token')

let tok = new token({
    // token有效期，单位是秒
    expires:3600,
    // 必须是32位字母数字
    key:'qwertyuioplkjhgfdsazxcvbnm123456',
    // 必须是16位字母数字
    iv:'mnbvcxzasdfghjkl'
})

// 使用HTTP/1.1的客户端
const {httpcli} = require('gohttp')

// 初始化数据库连接
let psql = new pg.Pool(dbconfig)

try{
    fs.accessSync('./images')
}catch(err){
    fs.mkdirSync('./images')
}

let cert_path = '/usr/local/share'

const app = new titbit({
    // 开启调试模式，会输出错误信息
    debug: true,
    globalLog: true,
    cert: `${cert_path}/wx.qasdwer.top.pem`,
    key: `${cert_path}/wx.qasdwer.top.key`
})

// 一定要在new之后
let tb = new tbloader();
tb.init(app)

// 就是在app.service对象上添加了一个属性
app.addService('tok',tok);
app.addService('psql',psql);
app.addService('imagePath',`${__dirname}/images`)

// c就是context
app.get('/',async c => {
    c.send('ok')
})

app.get('/upload',async c => {
    // c.helper是助手函数模块，其中有对stream的封装，c.reply是响应对象,http/1.1中指向response, http/2中指向stream
    await c.helper.pipe('./upload.html',c.reply)
})

app.get('mp-login/:code',async c=>{
    // c.send(c.param)
    let auth_url = `https://api.weixin.qq.com/sns/jscode2session`
                   + `?appid=${wxkey.appid}`
                   + `&secret=${wxkey.secret}`
                   + `&js_code=${c.param.code}`
                   + `&grant_type=authorization_code`
    
    let ret = await httpcli.get(auth_url)
                           .then(res=>{
                               return res.json()
                           })
    c.send(tok.make(ret));
})

// 监听1234端口运行服务
app.run(2001)