SOURCE

const app = tcb.init({
    env: 'vue-douyin-test-16f173'
})

app
    .auth({ persistance: "session" })
    .anonymousAuthProvider()
    .signIn()
    .then(() => addComment())
    .catch(err => console.error(err))


function queryComments() {
    const DB = app.database()
    
    DB.collection('comments')
        .doc('test')
        .get()
        .then(res => console.log(res))
}

function addComment() {
    const newComment = { 
        avatar:"/avatar/1.jpg",
        date:"4-21",
        text:"我是一条评论",
        username:"12345"
    }
    videoId = "test"
    const Comments = app.database().collection('comments')

    Comments
        .doc(videoId)
        .get()
        .then(res => {
            if (res.data.length === 0 ) {
                newComment._id = videoId
                return Comments.add({
                    _id: videoId, 
                    comments: [newComment] 
                })
            } else {
                return app.callFunction({
                    name: "docUpdateTest",
                    data: { newComment, videoId }
                })
            }
        })

    .then(res => console.log(res))
}