move old to legacy folder

.bzr/legacy/stc-21-03/controllers.js

@@ -0,0 +1,107 @@
+const { getDB } = require('../../../utils/mongo')
+
+let db = null
+
+const connect = async () => {
+    db = await getDB('stc-21-03')
+}
+
+const _idToId = (data) => {
+    const { _id, ...rest } = data
+
+    return {
+        id: _id, ...rest,
+    }
+}
+
+const FILM_TOMATOS_COLL = 'films-tomatos'
+const getFilmData = async (filmId) => {
+    if (db === null) throw new Error('no db connection')
+
+    const filmsCollection = db.collection(FILM_TOMATOS_COLL)
+    const data = await filmsCollection.find({
+        filmId,
+    }).toArray()
+
+    if (data.length === 0) {
+        const newData = {
+            filmId,
+            views: 0,
+            ratings: [],
+            likes: 0,
+        }
+
+        filmsCollection.insertMany([newData])
+
+        return _idToId(newData)
+    }
+    const filmData = data[0]
+    filmsCollection.updateOne({
+        filmId,
+    }, [
+        {
+            $set: {
+                views: ++filmData.views,
+            },
+        },
+    ])
+    return _idToId(filmData)
+}
+
+const setLike = async (filmId) => {
+    if (db === null) throw new Error('no db connection')
+
+    const filmsCollection = db.collection(FILM_TOMATOS_COLL)
+    const data = await filmsCollection.find({
+        filmId,
+    }).toArray()
+
+    if (data.length === 0) {
+        throw new Error('no film data')
+    }
+
+    const filmData = data[0]
+    filmsCollection.updateOne({
+        filmId,
+    }, [
+        {
+            $set: {
+                likes: ++filmData.likes,
+            },
+        },
+    ])
+    return _idToId(filmData)
+}
+
+const setRating = async ({ filmId, rating }) => {
+    if (db === null) throw new Error('no db connection')
+
+    const filmsCollection = db.collection(FILM_TOMATOS_COLL)
+    const data = await filmsCollection.find({
+        filmId,
+    }).toArray()
+
+    if (data.length === 0) {
+        throw new Error('no film data')
+    }
+
+    const filmData = data[0]
+    filmData.ratings = [...filmData.ratings, rating]
+    filmsCollection.updateOne({
+        filmId,
+    }, [
+        {
+            $set: {
+                ratings: filmData.ratings,
+            },
+        },
+    ])
+    return _idToId(filmData)
+}
+
+module.exports = {
+    connect,
+    getFilmData,
+    setLike,
+    setRating,
+}