'use strict';
const app = require("tcb-admin-node");

exports.main = async (event, context, callback) => {
    if (event.httpMethod != 'POST') {
        console.log(JSON.stringify(event))
       	return {
		'isBase64Encoded': false,
		'statusCode' : 403,
		'headers' : {'Content-Type':'text/html; charset=utf-8'},
		'body' : 'invalid_request_method'
           };
    }
    // 从 body 中获取数据
    var data = null;
    try {
        data = JSON.parse(event.body);
        console.log(JSON.stringify(data))
    }catch(e){
        console.log(JSON.stringify(event))
        return {
		'isBase64Encoded': false,
		'statusCode' : 403,
		'headers' : {'Content-Type':'text/html; charset=utf-8'},
		'body' : 'invalid_data_format'
           };
    }

    if (data) {
        let json = {
				"answer_id":data.payload.answer_id,
				"qq":data.payload.qq,
				"weixin_openid":data.payload.weixin_openid,
				"source":getAnswer(data,0,"q-1-yRh2","text"),
				"attachment":getAnswer(data,0,"q-10-NYLq","file_name_src"),
				"attachmentSrc":getAnswer(data,0,"q-10-NYLq","file_name_dst"),
				"helpSeeker":getAnswer(data,0,"q-2-LUYh","text"),
				"phoneOfHelpSeeker":getAnswer(data,0,"q-8-tvM9","text"),
				"idOfHelpSeeker":getAnswer(data,0,"q-3-iLje","text"),
				"family":getAnswer(data,0,"q-5-Qza9","text"),
				"address":getAnswer(data,0,"q-4-4TUk","text"),
				"phone":getAnswer(data,0,"q-7-Qq5r","text"),
				"status":getAnswer(data,0,"q-9-zh9f","text"),
				"datauirements":getAnswer(data,0,"q-6-LEh8","text")
			}

        // response 200
    app.init({env: process.env.ENV})
    const db = app.database();
    const _ = db.command
    let collection = db.collection(process.env.DB);
    await collection.add(json);
        return {
		'isBase64Encoded': false,
		'statusCode' : 200,
		'headers' : {'Content-Type':'text/html; charset=utf-8'},
		'body' : JSON.stringify(json)
           };
    }else{
        console.log(JSON.stringify(event))
        return {
		'isBase64Encoded': false,
		'statusCode' : 403,
		'headers' : {'Content-Type':'text/html; charset=utf-8'},
		'body' : 'invalid_data_format'
           };
    }
 
    console.log("异常退出")
    console.log(JSON.stringify(event));

};
function getAnswer(data,answerIndex,questionID,property){
    var questions = data.payload.answer[answerIndex].questions;
    for(var i=0;i<questions.length;i++){
        if(questions[i].id==questionID){
            return questions[i][property];
        }
    }
    return null
}