Added wall creation, deletion and fetching

src/games.js

@@ -4,7 +4,70 @@ import { checkStringProp } from './util.js';
 /**
  * @type {Collection}
  */
-let games;
+let cGames;
+/**
+ * @type {Collection}
+ */
+let cWalls;
+/**
+ * @type {Collection}
+ */
+let cCategories;
+/**
+ * @type {Collection}
+ */
+let cQuestions;
+
+const QuestionType = {
+    SIMPLE: 'SIMPLE',
+    MULTIPLE_CHOICE: 'MULTIPLE_CHOICE',
+    IMAGE: 'IMAGE',
+    IMAGE_MULTIPLE_CHOICE: 'IMAGE_MULTIPLE_CHOICE',
+    AUDIO: 'AUDIO',
+    AUDIO_MULTIPLE_CHOICE: 'AUDIO_MULTIPLE_CHOICE',
+};
+
+/**
+ *
+ * @param {number} points
+ * @param {string} question
+ * @param {string} answer
+ * @param {ObjectId} owner
+ * @returns
+ */
+function createSimpleQuestion(points, question, answer, owner) {
+    return {
+        owner,
+        points,
+        type: QuestionType.SIMPLE,
+        data: createSimpleData(question, answer),
+    };
+}
+
+/**
+ *
+ * @param {string} question
+ * @param {string} answer
+ * @returns
+ */
+function createSimpleData(question, answer) {
+    return {
+        question,
+        answer,
+    };
+}
+
+/**
+ *
+ * @param {ObjectId[]} ids
+ */
+function splitQuestionIds(ids) {
+    let res = [];
+    for (let i = 0; i < ids.length; i += 5) {
+        res.push(ids.slice(i, i + 5));
+    }
+    return res;
+}
 
 /**
  *
@@ -12,11 +75,19 @@ let games;
  * @param {Db} db
  */
 export function initGames(app, db) {
-    games = db.collection('games');
+    cGames = db.collection('games');
+    cWalls = db.collection('walls');
+    cCategories = db.collection('categories');
+    cQuestions = db.collection('questions');
     app.get('/game', fetchGame);
     app.post('/game', createGame);
-    app.delete('/game/:gameid', deleteGame);
+    app.delete('/game/:gameid', deleteGameRoute);
     app.get('/games', fetchGames);
+
+    app.get('/wall', fetchWall);
+    app.get('/walls/:gameid', fetchWalls);
+    app.post('/wall', createWall);
+    app.delete('/wall/:wallid', deleteWallRoute);
 }
 
 /**
@@ -32,7 +103,7 @@ async function createGame(req, res) {
 
     const name = req.body.name;
 
-    games
+    cGames
         .insertOne({
             name,
             walls: [],
@@ -53,7 +124,7 @@ async function createGame(req, res) {
  * @param {import('express').Response} res
  */
 async function fetchGames(req, res) {
-    let list = games.find({
+    let list = cGames.find({
         owner: req.user._id,
     });
 
@@ -73,7 +144,7 @@ async function fetchGame(req, res) {
 
     const id = new ObjectId(req.query.id);
 
-    let game = await games.findOne({
+    let game = await cGames.findOne({
         _id: id,
         owner: req.user._id,
     });
@@ -90,8 +161,8 @@ async function fetchGame(req, res) {
  * @param {import('express').Request} req
  * @param {import('express').Response} res
  */
-async function deleteGame(req, res) {
+async function deleteGameRoute(req, res) {
-    let game = await games.findOne({
+    let game = await cGames.findOne({
         owner: req.user._id,
         _id: new ObjectId(req.params.gameid),
     });
@@ -101,8 +172,7 @@ async function deleteGame(req, res) {
         return;
     }
 
-    games
+    deleteGame(game._id)
-        .deleteOne({ _id: game._id })
         .then(() => {
             res.sendStatus(200);
         })
@@ -111,3 +181,250 @@ async function deleteGame(req, res) {
             res.sendStatus(500);
         });
 }
+
+/**
+ *
+ * @param {import('express').Request} req
+ * @param {import('express').Response} res
+ */
+async function fetchWall(req, res) {
+    if (req.query.id === undefined || req.query.id.length <= 0) {
+        res.sendStatus(400);
+        return;
+    }
+
+    const id = new ObjectId(req.query.id);
+
+    let wall = await cWalls.findOne({
+        _id: id,
+        owner: req.user._id,
+    });
+
+    if (wall) {
+        res.status(200).send(wall);
+    } else {
+        res.sendStatus(404);
+    }
+}
+
+/**
+ *
+ * @param {import('express').Request} req
+ * @param {import('express').Response} res
+ */
+async function fetchWalls(req, res) {
+    let game = await cGames.findOne({
+        owner: req.user._id,
+        _id: new ObjectId(req.params.gameid),
+    });
+
+    if (!game) {
+        res.sendStatus(404);
+        return;
+    }
+
+    let fetchedWalls = cWalls.find({
+        _id: {
+            $in: game.walls,
+        },
+    });
+
+    res.status(200).send(await fetchedWalls.toArray());
+}
+
+/**
+ *
+ * @param {import('express').Request} req
+ * @param {import('express').Response} res
+ */
+async function createWall(req, res) {
+    if (
+        !checkStringProp(req.body, 'gameid') &&
+        !checkStringProp(req.body, 'name')
+    ) {
+        res.sendStatus(400);
+        return;
+    }
+
+    /**
+     * @type {string}
+     */
+    const gameid = req.body.gameid;
+    /**
+     * @type {string}
+     */
+    const wallname = req.body.name;
+
+    let game = await cGames.findOne({
+        owner: req.user._id,
+        _id: new ObjectId(gameid),
+    });
+
+    if (!game) {
+        res.sendStatus(404);
+        return;
+    }
+
+    let newQuestions = [];
+
+    for (let id = 0; id < 25; id++) {
+        newQuestions.push(
+            createSimpleQuestion(-1, 'Frage', 'Antwort', req.user._id),
+        );
+    }
+
+    cQuestions
+        .insertMany(newQuestions)
+        .then((insertedQuestions) => {
+            let questionsIds = splitQuestionIds(
+                Object.values(insertedQuestions.insertedIds),
+            );
+            let newCategories = [];
+
+            for (let i = 1; i <= 5; i++) {
+                newCategories.push({
+                    name: `Kategorie ${i}`,
+                    questions: questionsIds[i - 1],
+                    owner: req.user._id,
+                });
+            }
+
+            return cCategories.insertMany(newCategories);
+        })
+        .then((insertedCategories) => {
+            return cWalls.insertOne({
+                name: wallname,
+                categories: Object.values(insertedCategories.insertedIds),
+                owner: req.user._id,
+            });
+        })
+        .then((insertedWall) => {
+            return cGames.updateOne(
+                {
+                    _id: game._id,
+                },
+                {
+                    $push: {
+                        walls: insertedWall.insertedId,
+                    },
+                },
+            );
+        })
+        .then(() => {
+            res.sendStatus(200);
+        })
+        .catch((err) => {
+            console.error(err);
+            res.sendStatus(500);
+        });
+}
+
+/**
+ *
+ * @param {import('express').Request} req
+ * @param {import('express').Response} res
+ */
+async function deleteWallRoute(req, res) {
+    let wall = await cWalls.findOne({
+        _id: new ObjectId(req.params.wallid),
+        owner: req.user._id,
+    });
+
+    if (!wall) {
+        res.sendStatus(404);
+        return;
+    }
+
+    let game = await cGames.findOne({
+        owner: req.user._id,
+        walls: wall._id,
+    });
+
+    if (!game) {
+        res.sendStatus(404);
+        return;
+    }
+
+    deleteWall(wall._id)
+        .then(() => {
+            return cGames.updateOne(
+                {
+                    _id: game._id,
+                },
+                {
+                    $pull: {
+                        walls: wall._id,
+                    },
+                },
+            );
+        })
+        .then(() => {
+            res.sendStatus(200);
+        })
+        .catch((err) => {
+            console.error(err);
+            res.sendStatus(500);
+        });
+}
+
+/**
+ *
+ * @param {ObjectId} _id
+ */
+function deleteGame(_id) {
+    return cGames
+        .findOne({ _id })
+        .then((game) => {
+            let wallDeletions = [];
+            for (const wallId of game.walls) {
+                wallDeletions.push(deleteWall(wallId));
+            }
+
+            return Promise.all(wallDeletions);
+        })
+        .then(() => {
+            return cGames.deleteOne({ _id });
+        });
+}
+
+/**
+ *
+ * @param {ObjectId} _id
+ */
+function deleteWall(_id) {
+    return cWalls
+        .findOne({ _id })
+        .then((wall) => {
+            let categoryDeletions = [];
+            for (const catId of wall.categories) {
+                categoryDeletions.push(deleteCategory(catId));
+            }
+            return Promise.all(categoryDeletions);
+        })
+        .then(() => {
+            return cWalls.deleteOne({ _id: _id });
+        });
+}
+
+/**
+ *
+ * @param {ObjectId} _id
+ */
+function deleteCategory(_id) {
+    return cCategories
+        .findOne({
+            _id,
+        })
+        .then((category) => {
+            return cQuestions.deleteMany({
+                _id: {
+                    $in: category.questions,
+                },
+            });
+        })
+        .then(() => {
+            return cCategories.deleteOne({
+                _id,
+            });
+        });
+}