contest-questions APIs (#84)

* contest-questions APIs * Update server/models/contests/getAllQuestions.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/getAllQuestions.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/removeQuestion.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/getQuestion.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/getAllQuestions.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/getAllQuestions.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/getQuestion.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/getQuestion.js Co-authored-by: Chirag Jain <[email protected]> * Update server/models/contests/removeQuestion.js Co-authored-by: NIKHIL BN <[email protected]> * Update server/models/contests/removeQuestion.js Co-authored-by: NIKHIL BN <[email protected]> * Update server/models/contests/removeQuestion.js Co-authored-by: NIKHIL BN <[email protected]> Co-authored-by: Chirag Jain <[email protected]> Co-authored-by: NIKHIL BN <[email protected]>
Cyber-Labs · Dec 27, 2020 · 9038986 · 9038986
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diff --git a/server/models/contests/addQuestion.js b/server/models/contests/addQuestion.js
@@ -0,0 +1,39 @@
+const { pool } = require('../database')
+
+/**
+ * @param {*} param0
+ * @param {Object} param0.body
+ * @param {Object} param0.params
+ * @param {String} param0.username
+ * @return {Promise}
+ */
+
+function addQuestion({ params, body, username }) {
+  return new Promise((resolve, reject) => {
+    const { contest_id: contestId } = params
+    const { question_id: questionId, max_score: maxScore } = body
+    pool.query(
+      `INSERT INTO contests_questions (contest_id, question_id, max_score) SELECT contest_id, ?, ? FROM contests_moderators WHERE contest_id=? AND moderator=?`,
+      [questionId, maxScore, contestId, username],
+      (error, res) => {
+        if (error || res === undefined) {
+          const { code } = error
+          if (code === 'ER_DUP_ENTRY') {
+            return reject('The question is already added to the contest')
+          }
+          return reject(error)
+        } else {
+          const { affectedRows } = res
+          if (!affectedRows) {
+            return reject(
+              'Invalid question Id or the user do not have required permissions'
+            )
+          }
+          return resolve('Question added successfully!!')
+        }
+      }
+    )
+  })
+}
+
+module.exports = addQuestion
diff --git a/server/models/contests/getAllQuestions.js b/server/models/contests/getAllQuestions.js
@@ -0,0 +1,44 @@
+const { pool } = require('../../models/database')
+
+/**
+ * @param {*} param0
+ * @param {String} param0.username
+ * @param {Object} param0.params
+ * @return {Promise}
+ */
+
+function getAllQuestions({ username, params }) {
+  return new Promise((resolve, reject) => {
+    const { contest_id: contestId } = params
+    pool.query(
+      `SELECT question_id, q.name, q.difficulty, q.type, max_score FROM contests_questions cq
+      INNER JOIN contests c ON c.id = cq.contest_id
+      INNER JOIN questions q ON cq.question_id=q.id
+      WHERE c.id=? AND (EXISTS(SELECT 1 from contests_moderators WHERE contest_id=? AND moderator=?) OR (NOW()>c.end_time AND c.confidential_questions=0 AND (c.public = 1
+      OR EXISTS(SELECT 1 FROM contests_groups cg INNER JOIN user_groups ug ON cg.group_id = ug.group_id 
+        WHERE ug.username = ? AND cg.contest_id = ?))) OR (NOW()>=c.start_time AND NOW()<=c.end_time AND EXISTS(SELECT 1 FROM contests_participants WHERE contest_id=? AND participant=?)))`,
+      [
+        contestId,
+        contestId,
+        username,
+        username,
+        contestId,
+        contestId,
+        username,
+      ],
+      (error, results) => {
+        if (error || results === undefined) {
+          return reject(error)
+        }
+        if (!results || !results.length) {
+          return reject(
+            'You do not have moderator access of the contest. If the contest is active, make sure that you are registered as a participant.'
+          )
+        }
+        return resolve(results)
+      }
+    )
+  })
+}
+
+module.exports = getAllQuestions
diff --git a/server/models/contests/getQuestion.js b/server/models/contests/getQuestion.js
@@ -0,0 +1,45 @@
+const { pool } = require('../../models/database')
+
+/**
+ * @param {*} param0
+ * @param {String} param0.username
+ * @param {Object} param0.params
+ * @return {Promise}
+ */
+
+function getQuestion({ username, params }) {
+  return new Promise((resolve, reject) => {
+    const { contest_id: contestId, question_id: questionId } = params
+    pool.query(
+      `SELECT q.name, q.difficulty, q.type, max_score, q.creator, q.problem_statement, q.input_format, q.output_format, q.constraints, q.options FROM contests_questions cq
+      INNER JOIN contests c ON c.id = cq.contest_id
+      INNER JOIN questions q ON cq.question_id=q.id
+      WHERE (c.id=? AND q.id=?) AND (EXISTS(SELECT 1 from contests_moderators WHERE contest_id=? AND moderator=?) OR (NOW()>c.end_time AND c.confidential_questions=0 AND (c.public = 1
+      OR EXISTS(SELECT 1 FROM contests_groups cg INNER JOIN user_groups ug ON cg.group_id = ug.group_id 
+        WHERE ug.username = ? AND cg.contest_id = ?))) OR (NOW()>=c.start_time AND NOW()<=c.end_time AND EXISTS(SELECT 1 FROM contests_participants WHERE contest_id=? AND participant=?)))`,
+      [
+        contestId,
+        questionId,
+        contestId,
+        username,
+        username,
+        contestId,
+        contestId,
+        username,
+      ],
+      (error, results) => {
+        if (error || results === undefined) {
+          return reject(error)
+        }
+        if (!results || !results.length) {
+          return reject(
+            'You do not have moderator access of the contest. If the contest is active, make sure that you are registered as a participant.'
+          )
+        }
+        return resolve(results)
+      }
+    )
+  })
+}
+
+module.exports = getQuestion
diff --git a/server/models/contests/index.js b/server/models/contests/index.js
@@ -12,6 +12,10 @@ const getContestModerators = require('./getContestModerators')
 const participate = require('./participate')
 const getAllParticipants = require('./getAllParticipants')
 const getAllParticipantsDetails = require('./getAllParticipantsDetails')
+const addQuestion = require('./addQuestion')
+const removeQuestion = require('./removeQuestion')
+const getAllQuestions = require('./getAllQuestions')
+const getQuestion = require('./getQuestion')
 
 module.exports = {
   createContest,
@@ -28,4 +32,8 @@ module.exports = {
   participate,
   getAllParticipants,
   getAllParticipantsDetails,
+  addQuestion,
+  removeQuestion,
+  getQuestion,
+  getAllQuestions,
 }
diff --git a/server/models/contests/removeQuestion.js b/server/models/contests/removeQuestion.js
@@ -0,0 +1,35 @@
+const { pool } = require('../database')
+
+/**
+ * @param {*} param0
+ * @param {Object} param0.body
+ * @param {Object} param0.params
+ * @param {String} param0.username
+ * @return {Promise}
+ */
+
+function removeQuestion({ params, body, username }) {
+  return new Promise((resolve, reject) => {
+    const { contest_id: contestId } = params
+    const { question_id: questionId } = body
+    pool.query(
+      `DELETE FROM contests_questions WHERE EXISTS(SELECT 1 FROM contests_moderators WHERE contest_id=? AND moderator=?) AND question_id = ? AND contest_id = ?`,
+      [contestId, username, questionId, contestId],
+      (error, res) => {
+        if (error || res === undefined) {
+          return reject(error)
+        } else {
+          const { affectedRows } = res
+          if (!affectedRows) {
+            return reject(
+              'Invalid question Id or you do not have moderator access to the contest'
+            )
+          }
+          return resolve('Question removed successfully!!')
+        }
+      }
+    )
+  })
+}
+
+module.exports = removeQuestion
diff --git a/server/routes/contests/addQuestion.js b/server/routes/contests/addQuestion.js
@@ -0,0 +1,50 @@
+const express = require('express')
+const router = express.Router()
+const ajv = require('../../schema')
+const contests = require('../../models/contests')
+const { addQuestionSchema } = require('../../schema/contests')
+const middleware = require('../middlewares')
+
+/**
+ *
+ * @param {Array} errArray
+ * @return {String}
+ */
+function sumErrors(errArray) {
+  const cb = (a, b) => a + b.message + ', '
+  return errArray.reduce(cb, '')
+}
+
+router.post(
+  '/:contest_id/questions',
+  middleware.verifyUserAccessToken,
+  async (request, response) => {
+    const validate = ajv.compile(addQuestionSchema)
+    const isValid = validate(request.body)
+    if (!isValid) {
+      return response.status(400).json({
+        success: false,
+        error: sumErrors(validate.errors),
+        results: null,
+      })
+    }
+    contests
+      .addQuestion(request)
+      .then((results) => {
+        return response.status(200).json({
+          success: true,
+          error: null,
+          results,
+        })
+      })
+      .catch((error) => {
+        return response.status(400).json({
+          success: false,
+          error,
+          results: null,
+        })
+      })
+  }
+)
+
+module.exports = router
diff --git a/server/routes/contests/getAllQuestions.js b/server/routes/contests/getAllQuestions.js
@@ -0,0 +1,29 @@
+const express = require('express')
+const router = express.Router()
+const contests = require('../../models/contests')
+const middleware = require('../middlewares')
+
+router.get(
+  '/:contest_id/questions',
+  middleware.verifyUserAccessToken,
+  async (request, response) => {
+    contests
+      .getAllQuestions(request)
+      .then((results) => {
+        return response.status(200).json({
+          success: true,
+          error: null,
+          results,
+        })
+      })
+      .catch((error) => {
+        return response.status(400).json({
+          success: false,
+          error,
+          results: null,
+        })
+      })
+  }
+)
+
+module.exports = router
diff --git a/server/routes/contests/getQuestion.js b/server/routes/contests/getQuestion.js
@@ -0,0 +1,29 @@
+const express = require('express')
+const router = express.Router()
+const contests = require('../../models/contests')
+const middleware = require('../middlewares')
+
+router.get(
+  '/:contest_id/questions/:question_id',
+  middleware.verifyUserAccessToken,
+  async (request, response) => {
+    contests
+      .getQuestion(request)
+      .then((results) => {
+        return response.status(200).json({
+          success: true,
+          error: null,
+          results,
+        })
+      })
+      .catch((error) => {
+        return response.status(400).json({
+          success: false,
+          error,
+          results: null,
+        })
+      })
+  }
+)
+
+module.exports = router
diff --git a/server/routes/contests/index.js b/server/routes/contests/index.js
@@ -12,6 +12,10 @@ const getContestModeratorsRouter = require('./getContestModerators')
 const participateRouter = require('./participate')
 const getAllParticipantsRouter = require('./getAllParticipants')
 const getAllParticipantsDetailsRouter = require('./getAllParticipantsDetails')
+const addQuestionRouter = require('./addQuestion')
+const removeQuestionRouter = require('./removeQuestion')
+const getAllQuestionsRouter = require('./getAllQuestions')
+const getQuestionRouter = require('./getQuestion')
 
 module.exports = {
   createContestRouter,
@@ -28,4 +32,8 @@ module.exports = {
   participateRouter,
   getAllParticipantsRouter,
   getAllParticipantsDetailsRouter,
+  addQuestionRouter,
+  removeQuestionRouter,
+  getQuestionRouter,
+  getAllQuestionsRouter,
 }
diff --git a/server/routes/contests/removeQuestion.js b/server/routes/contests/removeQuestion.js
@@ -0,0 +1,50 @@
+const express = require('express')
+const router = express.Router()
+const ajv = require('../../schema')
+const contests = require('../../models/contests')
+const { removeQuestionSchema } = require('../../schema/contests')
+const middleware = require('../middlewares')
+
+/**
+ *
+ * @param {Array} errArray
+ * @return {String}
+ */
+function sumErrors(errArray) {
+  const cb = (a, b) => a + b.message + ', '
+  return errArray.reduce(cb, '')
+}
+
+router.delete(
+  '/:contest_id/questions',
+  middleware.verifyUserAccessToken,
+  async (request, response) => {
+    const validate = ajv.compile(removeQuestionSchema)
+    const isValid = validate(request.body)
+    if (!isValid) {
+      return response.status(400).json({
+        success: false,
+        error: sumErrors(validate.errors),
+        results: null,
+      })
+    }
+    contests
+      .removeQuestion(request)
+      .then((results) => {
+        return response.status(200).json({
+          success: true,
+          error: null,
+          results,
+        })
+      })
+      .catch((error) => {
+        return response.status(400).json({
+          success: false,
+          error,
+          results: null,
+        })
+      })
+  }
+)
+
+module.exports = router
diff --git a/server/routes/index.js b/server/routes/index.js
@@ -67,12 +67,10 @@ router.use('/contests', contestsRouter.getContestModeratorsRouter)
 router.use('/contests', contestsRouter.participateRouter)
 router.use('/contests', contestsRouter.getAllParticipantsRouter)
 router.use('/contests', contestsRouter.getAllParticipantsDetailsRouter)
-// router.use('/contests', contestsRouter.addQuestionRouter)
-// router.use('/contests', contestsRouter.removeQuestionRouter)
-// router.use('/contests', contestsRouter.getAllQuestionsRouter)
-// router.use('/contests', contestsRouter.getQuestionRouter)
-// router.use('/contests', contestsRouter.getLeaderboardRouter)
-// router.use('/contests', contestsRouter.getQuestionLeaderboardRouter)
+router.use('/contests', contestsRouter.addQuestionRouter)
+router.use('/contests', contestsRouter.removeQuestionRouter)
+router.use('/contests', contestsRouter.getAllQuestionsRouter)
+router.use('/contests', contestsRouter.getQuestionRouter)
 
 router.use('/questions', questionsRouter.getEditorQuestions)
 router.use('/questions', questionsRouter.updateQuestion)