From aa8012232724574e82c2675526a9abdd8564dbc6 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Thu, 23 Nov 2023 15:08:48 +0300
Subject: [PATCH 01/11] feat: add api to fetch srm schedule

---
 .circleci/config.yml                   |   1 +
 config/default.js                      |   2 +
 package.json                           |   1 +
 src/common/srm-helper.js               | 111 +++++++++++++++++++++++++
 src/controllers/ChallengeController.js |  11 +++
 src/routes.js                          |   6 ++
 src/services/ChallengeService.js       |  26 ++++++
 yarn.lock                              |  44 ++++++++++
 8 files changed, 202 insertions(+)
 create mode 100644 src/common/srm-helper.js

diff --git a/.circleci/config.yml b/.circleci/config.yml
index cc1a3e94..b5bbd3f0 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -91,6 +91,7 @@ workflows:
             only:
             - dev
             - hotfix/budget-update
+            - CORE-140
 
     - "build-qa":
         context: org-global
diff --git a/config/default.js b/config/default.js
index 3c4f0045..39f05b88 100644
--- a/config/default.js
+++ b/config/default.js
@@ -128,4 +128,6 @@ module.exports = {
   INTERNAL_CACHE_TTL: process.env.INTERNAL_CACHE_TTL || 1800,
   GRPC_CHALLENGE_SERVER_HOST: process.env.GRPC_DOMAIN_CHALLENGE_SERVER_HOST || "localhost",
   GRPC_CHALLENGE_SERVER_PORT: process.env.GRPC_DOMAIN_CHALLENGE_SERVER_PORT || 8888,
+  GRPC_ACL_SERVER_HOST: process.env.GRPC_ACL_SERVER_HOST || "localhost",
+  GRPC_ACL_SERVER_PORT: process.env.GRPC_ACL_SERVER_HOST || 8889,
 };
diff --git a/package.json b/package.json
index 2226eb2f..c79e4272 100644
--- a/package.json
+++ b/package.json
@@ -43,6 +43,7 @@
     "@grpc/grpc-js": "^1.8.12",
     "@opensearch-project/opensearch": "^2.2.0",
     "@topcoder-framework/domain-challenge": "^0.24.0",
+    "@topcoder-framework/domain-acl": "^0.24.0",
     "@topcoder-framework/lib-common": "^0.24.0",
     "aws-sdk": "^2.1145.0",
     "axios": "^0.19.0",
diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
new file mode 100644
index 00000000..8c722e2c
--- /dev/null
+++ b/src/common/srm-helper.js
@@ -0,0 +1,111 @@
+const _ = require("lodash");
+const moment = require("moment");
+
+const SRMScheduleKeyMappings = _.reduce(
+  [
+    "roundId",
+    "name",
+    "shortName",
+    "contestName",
+    "roundType",
+    "status",
+    "registrationStartTime",
+    "registrationEndTime",
+    "codingStartTime",
+    "codingEndTime",
+    "intermissionStartTime",
+    "intermissionEndTime",
+    "challengeStartTime",
+    "challengeEndTime",
+    "systestStartTime",
+    "systestEndTime",
+  ],
+  (acc, field) => ({ ...acc, [_.toLower(field)]: field }),
+  {}
+);
+
+/**
+ * Get schedule query
+ * @param {Object} filter the query filter
+ * @param {Array<String>} filter.statuses the statues
+ * @param {Date} filter.registrationStartTimeAfter the start of the registration time
+ * @param {Date} filter.registrationStartTimeBefore the end of the registration time
+ */
+function getSRMScheduleQuery(filter) {
+  const statuses = _.join(
+    _.map(filter.statuses, (s) => `'${_.toUpper(s)}'`),
+    ","
+  );
+  const registrationTimeFilter = `reg.start_time >= ${moment(
+    filter.registrationStartTimeAfter
+  ).format("yyyy-MM-DD HH:mm:ss")}${
+    filter.registrationStartTimeBefore
+      ? ` AND reg.start_time <= ${moment(filter.registrationStartTimeBefore).format(
+          "yyyy-MM-DD HH:mm:ss"
+        )}`
+      : ""
+  }`;
+
+  const query = `SELECT 
+  FIRST 50
+  r.round_id AS roundId
+  , r.name AS name
+  , r.short_name AS shortName
+  , c.name AS contestName
+  , rt.round_type_desc AS roundType
+  , r.status AS status
+  , reg.start_time AS registrationStartTime
+  , reg.end_time AS registrationEndTime
+  , coding.start_time AS codingStartTime
+  , coding.end_time AS codingEndTime
+  , intermission.start_time AS intermissionStartTime
+  , intermission.end_time AS intermissionEndTime
+  , challenge.start_time AS challengeStartTime
+  , challenge.end_time AS challengeEndTime
+  , systest.start_time AS systestStartTime
+  , systest.end_time AS systestEndTime
+  FROM  
+  informixoltp:contest AS c
+  INNER JOIN informixoltp:round AS r ON r.contest_id = c.contest_id
+  INNER JOIN informixoltp:round_type_lu AS rt ON rt.round_type_id = r.round_type_id
+  LEFT JOIN informixoltp:round_segment AS reg ON reg.round_id = r.round_id AND reg.segment_id = 1
+  LEFT JOIN informixoltp:round_segment AS coding ON coding.round_id = r.round_id AND coding.segment_id = 2
+  LEFT JOIN informixoltp:round_segment AS intermission ON intermission.round_id = r.round_id AND intermission.segment_id = 3
+  LEFT JOIN informixoltp:round_segment AS challenge ON challenge.round_id = r.round_id AND challenge.segment_id = 4
+  LEFT JOIN informixoltp:round_segment AS systest ON systest.round_id = r.round_id AND systest.segment_id = 5
+  WHERE  
+  r.round_type_id in (1,2,10) AND
+  UPPER(r.status) in (${statuses}) AND 
+  ${registrationTimeFilter}
+  ORDER BY 
+  reg.start_time DESC`;
+  return query;
+}
+
+function convertSRMScheduleQueryOutput(queryOutput) {
+  return transformDatabaseResponse(queryOutput, SRMScheduleKeyMappings);
+}
+
+function transformDatabaseResponse(databaseResponse, keyMappings) {
+  const transformedData = [];
+
+  if (databaseResponse && databaseResponse.rows && Array.isArray(databaseResponse.rows)) {
+    databaseResponse.rows.forEach((row) => {
+      const record = {};
+      if (row.fields && Array.isArray(row.fields)) {
+        row.fields.forEach((field) => {
+          const lowercaseKey = field.key.toLowerCase();
+          const mappedKey = keyMappings[lowercaseKey] || lowercaseKey;
+          record[mappedKey] = field.value;
+        });
+      }
+      transformedData.push(record);
+    });
+  }
+  return transformedData;
+}
+
+module.exports = {
+  getSRMScheduleQuery,
+  convertSRMScheduleQueryOutput,
+};
diff --git a/src/controllers/ChallengeController.js b/src/controllers/ChallengeController.js
index 18c61937..d279aab5 100644
--- a/src/controllers/ChallengeController.js
+++ b/src/controllers/ChallengeController.js
@@ -126,6 +126,16 @@ async function advancePhase(req, res) {
   res.send(await service.advancePhase(req, req.authUser, req.params.challengeId, req.body));
 }
 
+/**
+ * Get SRM Schedule
+ * @param {Object} req the request
+ * @param {Object} res the response
+ */
+async function getSRMSchedule(req, res) {
+  const result = await service.getSRMSchedule(req, req.query);
+  res.send(result);
+}
+
 module.exports = {
   searchChallenges,
   createChallenge,
@@ -135,4 +145,5 @@ module.exports = {
   getChallengeStatistics,
   sendNotifications,
   advancePhase,
+  getSRMSchedule,
 };
diff --git a/src/routes.js b/src/routes.js
index 74e571c8..eb121a6d 100644
--- a/src/routes.js
+++ b/src/routes.js
@@ -40,6 +40,12 @@ module.exports = {
       method: "createRequest",
     },
   },
+  "/challenges/srms/schedule": {
+    get: {
+      controller: "ChallengeController",
+      method: "getSRMSchedule",
+    },
+  },
   "/challenges/health": {
     get: {
       controller: "HealthController",
diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index f0f7b110..c25a9ae1 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -33,6 +33,7 @@ const esClient = helper.getESClient();
 
 const PhaseAdvancer = require("../phase-management/PhaseAdvancer");
 const { ChallengeDomain } = require("@topcoder-framework/domain-challenge");
+const { QueryDomain } = require("@topcoder-framework/domain-acl");
 
 const { hasAdminRole } = require("../common/role-helper");
 const {
@@ -44,6 +45,7 @@ const {
 } = require("../common/challenge-helper");
 const deepEqual = require("deep-equal");
 const { getM2MToken } = require("../common/m2m-helper");
+const { getSRMScheduleQuery, convertSRMScheduleQueryOutput } = require("../common/srm-helper");
 
 const challengeDomain = new ChallengeDomain(
   GRPC_CHALLENGE_SERVER_HOST,
@@ -65,6 +67,9 @@ const challengeDomain = new ChallengeDomain(
     }),
   }
 );
+
+const aclQueryDomain = new QueryDomain(GRPC_ACL_SERVER_HOST, GRPC_ACL_SERVER_PORT);
+
 const phaseAdvancer = new PhaseAdvancer(challengeDomain);
 
 /**
@@ -2454,6 +2459,27 @@ async function indexChallengeAndPostToKafka(updatedChallenge, track, type) {
   });
 }
 
+/**
+ * Get SRM Schedule
+ * @param {Object} criteria the criteria
+ */
+async function getSRMSchedule(criteria = {}) {
+  if (!criteria.statuses) {
+    criteria.statuses = ["A", "F", "P"];
+  }
+  const sql = getSRMScheduleQuery(criteria);
+  const result = await aclQueryDomain.rawQuery({ sql });
+  return convertSRMScheduleQueryOutput(result);
+}
+
+getSRMSchedule.schema = {
+  criteria: Joi.object().keys({
+    registrationStartTimeAfter: Joi.date().default(new Date()),
+    registrationStartTimeBefore: Joi.date(),
+    statuses: Joi.array().items(Joi.string().valid(["A", "F", "P"])),
+  }),
+};
+
 module.exports = {
   searchChallenges,
   createChallenge,
diff --git a/yarn.lock b/yarn.lock
index e8d35dd2..3bccd284 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -134,6 +134,14 @@
     "@grpc/proto-loader" "^0.7.8"
     "@types/node" ">=12.12.47"
 
+"@grpc/grpc-js@^1.8.7":
+  version "1.9.11"
+  resolved "https://registry.yarnpkg.com/@grpc/grpc-js/-/grpc-js-1.9.11.tgz#7b21195c910a49c0bb5d0df21d28a30c4e174851"
+  integrity sha512-QDhMfbTROOXUhLHMroow8f3EHiCKUOh6UwxMP5S3EuXMnWMNSVIhatGZRwkpg9OUTYdZPsDUVH3cOAkWhGFUJw==
+  dependencies:
+    "@grpc/proto-loader" "^0.7.8"
+    "@types/node" ">=12.12.47"
+
 "@grpc/proto-loader@^0.7.8":
   version "0.7.10"
   resolved "https://registry.yarnpkg.com/@grpc/proto-loader/-/proto-loader-0.7.10.tgz#6bf26742b1b54d0a473067743da5d3189d06d720"
@@ -260,6 +268,27 @@
     topcoder-proto-registry "0.1.0"
     tslib "^2.4.1"
 
+"@topcoder-framework/client-relational@^0.24.1":
+  version "0.24.1"
+  resolved "https://topcoder-409275337247.d.codeartifact.us-east-1.amazonaws.com/npm/topcoder-framework/@topcoder-framework/client-relational/-/client-relational-0.24.1.tgz#a01c4bb5a6117c38d5b61e1a79ded58abeb5b7c5"
+  integrity sha512-yZJS2N6l1YT/wadWRgMhMzrtFNfPgCBMVLUPO2ORHq182xXSIBkpXLRvX99z2XVPRGpjCVkfumh+jANQKX8AXw==
+  dependencies:
+    "@grpc/grpc-js" "^1.8.0"
+    "@topcoder-framework/lib-common" "^0.24.1"
+    topcoder-proto-registry "0.2.0"
+    tslib "^2.4.1"
+
+"@topcoder-framework/domain-acl@^0.24.0":
+  version "0.24.1"
+  resolved "https://topcoder-409275337247.d.codeartifact.us-east-1.amazonaws.com/npm/topcoder-framework/@topcoder-framework/domain-acl/-/domain-acl-0.24.1.tgz#61435da8d28756a319bc31bfd4f5b4458614f64f"
+  integrity sha512-7+uvCxkfURuXsBIwQBvn9aBobBheZCKlKQWzH4Dk5sCBxyhbjQ0B+TkFnfn2+65NzblwuvYEAEnJdLyAYu4RPA==
+  dependencies:
+    "@grpc/grpc-js" "^1.8.7"
+    "@topcoder-framework/client-relational" "^0.24.1"
+    "@topcoder-framework/lib-common" "^0.24.1"
+    topcoder-proto-registry "0.2.0"
+    tslib "^2.4.1"
+
 "@topcoder-framework/domain-challenge@^0.24.0":
   version "0.24.0"
   resolved "https://topcoder-409275337247.d.codeartifact.us-east-1.amazonaws.com/npm/topcoder-framework/@topcoder-framework/domain-challenge/-/domain-challenge-0.24.0.tgz#023e57b95cc5213650eebffb860939b61d9b8068"
@@ -281,6 +310,16 @@
     topcoder-proto-registry "0.1.0"
     tslib "^2.4.1"
 
+"@topcoder-framework/lib-common@^0.24.1":
+  version "0.24.1"
+  resolved "https://topcoder-409275337247.d.codeartifact.us-east-1.amazonaws.com/npm/topcoder-framework/@topcoder-framework/lib-common/-/lib-common-0.24.1.tgz#fc69af0f3deb263d347bfb8ac014065c5a7ceeec"
+  integrity sha512-Av/v5YybzyrJlhxANFxy+uJR938OWzd4vkcBZvAWmY4wX9D8UOiBA1nF2EMZ5+9xhY+PD3O/yuqnfqUs/4qT+g==
+  dependencies:
+    "@grpc/grpc-js" "^1.8.0"
+    rimraf "^3.0.2"
+    topcoder-proto-registry "0.2.0"
+    tslib "^2.4.1"
+
 "@types/body-parser@*":
   version "1.19.4"
   resolved "https://registry.yarnpkg.com/@types/body-parser/-/body-parser-1.19.4.tgz#78ad68f1f79eb851aa3634db0c7f57f6f601b462"
@@ -4012,6 +4051,11 @@ topcoder-proto-registry@0.1.0:
   resolved "https://registry.yarnpkg.com/topcoder-proto-registry/-/topcoder-proto-registry-0.1.0.tgz#7bdcb7df7c8bbf9d54beba1c69a6210d0f4ca097"
   integrity sha512-2RYGdDfCaX02pNcJu7ofb26O0SPe4MA6yfvpzXx6DjiuGtZu5QSZHkeaxqAlzRc9/F5zfWmGJwin4TOppo2xrA==
 
+topcoder-proto-registry@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/topcoder-proto-registry/-/topcoder-proto-registry-0.2.0.tgz#703d636d2581b7b3903fe299f6c3d572c5f728c0"
+  integrity sha512-qmoAY0jb25A4S4bunUagj+wP++d1Db0iZqMc0SaMFjzW33dXjay7TpJDBbNZuVk4He7kUhYXrn2CDikbPM3TFw==
+
 topo@3.x.x:
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/topo/-/topo-3.0.3.tgz#d5a67fb2e69307ebeeb08402ec2a2a6f5f7ad95c"

From 7e95bcce2303720e971fe93427a5e2d3dc2a62d6 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Thu, 23 Nov 2023 15:16:35 +0300
Subject: [PATCH 02/11] fix: config

---
 src/services/ChallengeService.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index c25a9ae1..682258f2 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -68,7 +68,7 @@ const challengeDomain = new ChallengeDomain(
   }
 );
 
-const aclQueryDomain = new QueryDomain(GRPC_ACL_SERVER_HOST, GRPC_ACL_SERVER_PORT);
+const aclQueryDomain = new QueryDomain(config.GRPC_ACL_SERVER_HOST, config.GRPC_ACL_SERVER_PORT);
 
 const phaseAdvancer = new PhaseAdvancer(challengeDomain);
 

From 4cd454d2a734aa6927d4ee995100c888563fd5f8 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Thu, 23 Nov 2023 15:21:56 +0300
Subject: [PATCH 03/11] fix: export

---
 src/services/ChallengeService.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index 682258f2..0b13b18f 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -2489,6 +2489,7 @@ module.exports = {
   getChallengeStatistics,
   sendNotifications,
   advancePhase,
+  getSRMSchedule,
 };
 
 logger.buildService(module.exports);

From 2b71a5493f74294f11fbd874a063dbf2fd8eb654 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Thu, 23 Nov 2023 15:41:09 +0300
Subject: [PATCH 04/11] fix: config

---
 config/default.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config/default.js b/config/default.js
index 39f05b88..c0a71032 100644
--- a/config/default.js
+++ b/config/default.js
@@ -129,5 +129,5 @@ module.exports = {
   GRPC_CHALLENGE_SERVER_HOST: process.env.GRPC_DOMAIN_CHALLENGE_SERVER_HOST || "localhost",
   GRPC_CHALLENGE_SERVER_PORT: process.env.GRPC_DOMAIN_CHALLENGE_SERVER_PORT || 8888,
   GRPC_ACL_SERVER_HOST: process.env.GRPC_ACL_SERVER_HOST || "localhost",
-  GRPC_ACL_SERVER_PORT: process.env.GRPC_ACL_SERVER_HOST || 8889,
+  GRPC_ACL_SERVER_PORT: process.env.GRPC_ACL_SERVER_PORT || 8889,
 };

From 0bd5aaac43289c48f239be6c3cd4e5bfac6dad80 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Thu, 23 Nov 2023 16:03:58 +0300
Subject: [PATCH 05/11] fix: query

---
 src/common/srm-helper.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
index 8c722e2c..4abea316 100644
--- a/src/common/srm-helper.js
+++ b/src/common/srm-helper.js
@@ -36,13 +36,13 @@ function getSRMScheduleQuery(filter) {
     _.map(filter.statuses, (s) => `'${_.toUpper(s)}'`),
     ","
   );
-  const registrationTimeFilter = `reg.start_time >= ${moment(
+  const registrationTimeFilter = `reg.start_time >= '${moment(
     filter.registrationStartTimeAfter
-  ).format("yyyy-MM-DD HH:mm:ss")}${
+  ).format("yyyy-MM-DD HH:mm:ss")}'${
     filter.registrationStartTimeBefore
-      ? ` AND reg.start_time <= ${moment(filter.registrationStartTimeBefore).format(
+      ? ` AND reg.start_time <= '${moment(filter.registrationStartTimeBefore).format(
           "yyyy-MM-DD HH:mm:ss"
-        )}`
+        )}'`
       : ""
   }`;
 

From c8dcd1437547028b659ba3598f9bbcbba03d05b8 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Fri, 24 Nov 2023 14:16:09 +0300
Subject: [PATCH 06/11] add api to fetch srm practice problems

---
 .circleci/config.yml                   |   1 -
 src/common/srm-helper.js               | 124 ++++++++++++++++++++++++-
 src/controllers/ChallengeController.js |  11 +++
 src/routes.js                          |   7 ++
 src/services/ChallengeService.js       |  44 ++++++++-
 5 files changed, 180 insertions(+), 7 deletions(-)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index b5bbd3f0..cc1a3e94 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -91,7 +91,6 @@ workflows:
             only:
             - dev
             - hotfix/budget-update
-            - CORE-140
 
     - "build-qa":
         context: org-global
diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
index 4abea316..4c14ce44 100644
--- a/src/common/srm-helper.js
+++ b/src/common/srm-helper.js
@@ -24,12 +24,30 @@ const SRMScheduleKeyMappings = _.reduce(
   {}
 );
 
+const PracticeProblemsKeyMappings = _.reduce(
+  [
+    "problemId",
+    "componentId",
+    "roomId",
+    "roundId",
+    "divisionId",
+    "problemName",
+    "problemType",
+    "difficulty",
+    "status",
+    "points",
+    "myPoints",
+  ],
+  (acc, field) => ({ ...acc, [_.toLower(field)]: field }),
+  {}
+);
+
 /**
  * Get schedule query
  * @param {Object} filter the query filter
  * @param {Array<String>} filter.statuses the statues
  * @param {Date} filter.registrationStartTimeAfter the start of the registration time
- * @param {Date} filter.registrationStartTimeBefore the end of the registration time
+ * @param {Date=} filter.registrationStartTimeBefore the end of the registration time
  */
 function getSRMScheduleQuery(filter) {
   const statuses = _.join(
@@ -82,10 +100,112 @@ function getSRMScheduleQuery(filter) {
   return query;
 }
 
+/**
+ * Get schedule query
+ * @param {Object} criteria the query criteria
+ * @param {String} criteria.userId the user id
+ * @param {String} criteria.sortBy the sort field
+ * @param {String} criteria.sortOrder the sort order
+ * @param {Number} criteria.page the sort order
+ * @param {Number} criteria.perPage the sort order
+ * @param {String=} criteria.difficulty the sort order
+ * @param {String=} criteria.status the sort order
+ * @param {Number=} criteria.pointsLowerBound the sort order
+ * @param {Number=} criteria.pointsUpperBound the statues
+ * @param {String=} criteria.problemName the start of the registration time
+ */
+function getPracticeProblemsQuery(criteria) {
+  const offset = (criteria.page - 1) * criteria.perPage;
+  let sortBy = criteria.sortBy;
+  if (criteria.sortBy === "problemId") {
+    sortBy = "p.problem_id";
+  } else if (criteria.sortBy === "problemName") {
+    sortBy = "p.name";
+  } else if (criteria.sortBy === "problemType") {
+    sortBy = "ptl.problem_type_desc";
+  } else if (criteria.sortBy === "points") {
+    sortBy = "rc.points";
+  } else if (criteria.sortBy === "difficulty") {
+    sortBy = "p.proposed_difficulty_id";
+  } else if (criteria.sortBy === "status") {
+    sortBy = "pcs.status_id";
+  } else if (criteria.sortBy === "myPoints") {
+    sortBy = "pcs.point";
+  }
+  const filters = [];
+  if (criteria.difficulty) {
+    if (criteria.difficulty === "easy") {
+      filters.push(`p.proposed_difficulty_id=1`);
+    } else if (criteria.difficulty === "medium") {
+      filters.push(`p.proposed_difficulty_id=2`);
+    } else if (criteria.difficulty === "hard") {
+      filters.push(`p.proposed_difficulty_id=3`);
+    }
+  }
+  if (criteria.status) {
+    if (criteria.status === "new") {
+      filters.push("NVL(pcs.status_id, 0) < 120");
+    } else if (criteria.status === "viewed") {
+      filters.push("pcs.status_id >= 120 AND pcs.status_id != 150");
+    } else if (criteria.status === "solved") {
+      filters.push("pcs.status_id = 150");
+    }
+  }
+  if (criteria.pointsLowerBound) {
+    filters.push(`rc.points >= ${criteria.pointsLowerBound}`);
+  }
+  if (criteria.pointsUpperBound) {
+    filters.push(`rc.points <= ${criteria.pointsUpperBound}`);
+  }
+  if (criteria.problemName) {
+    filters.push(
+      `lower(p.name) like '%${_.toLower(_.replace(criteria.problemName, /[^a-z0-9]/gi, ""))}%'`
+    );
+  }
+
+  const query = `SELECT
+  SKIP ${offset}
+  FIRST ${criteria.perPage}
+    p.problem_id AS problemId
+  , c.component_id AS componentId
+  , ro.room_id AS roomId
+  , rc.round_id AS roundId
+  , rc.division_id AS divisionId
+  , p.name AS problemName
+  , ptl.problem_type_desc AS problemType
+  , CASE WHEN (p.problem_type_id = 1 AND p.proposed_difficulty_id = 1) THEN 'Easy'::nvarchar(50)
+         WHEN (p.problem_type_id = 1 AND p.proposed_difficulty_id = 2) THEN 'Medium'::nvarchar(50)
+         WHEN (p.problem_type_id = 1 AND p.proposed_difficulty_id = 3) THEN 'Hard'::nvarchar(50)
+      END AS difficulty
+  , rc.points AS points
+  , CASE WHEN NVL(pcs.status_id, 0) < 120 THEN 'New'::nvarchar(50)
+         WHEN pcs.status_id = 150 THEN 'Solved'::nvarchar(50)
+         WHEN pcs.status_id >= 120 AND pcs.status_id != 150 THEN 'Viewed'::nvarchar(50)
+      END AS status
+  , NVL(pcs.points, 0) AS myPoints
+  FROM informixoltp:problem p
+  INNER JOIN informixoltp:problem_type_lu ptl ON ptl.problem_type_id = p.problem_type_id
+  INNER JOIN informixoltp:component c ON c.problem_id = p.problem_id
+  INNER JOIN informixoltp:round_component rc ON rc.component_id = c.component_id
+  INNER JOIN informixoltp:round r ON r.round_id = rc.round_id AND r.status = 'A' AND r.round_type_id = 3
+  INNER JOIN informixoltp:room ro ON ro.round_id = rc.round_id AND ro.room_type_id = 3
+  LEFT  JOIN informixoltp:component_state pcs ON pcs.round_id = rc.round_id AND pcs.component_id = c.component_id AND pcs.coder_id = ${
+    criteria.userId
+  }
+  WHERE ${_.join(filters, " AND ")}
+  ORDER BY ${sortBy} ${criteria.sortOrder}
+  `;
+  return query;
+}
+
 function convertSRMScheduleQueryOutput(queryOutput) {
   return transformDatabaseResponse(queryOutput, SRMScheduleKeyMappings);
 }
 
+function convertPracticeProblemsQueryOutput(queryOutput) {
+  return transformDatabaseResponse(queryOutput, PracticeProblemsKeyMappings);
+}
+
 function transformDatabaseResponse(databaseResponse, keyMappings) {
   const transformedData = [];
 
@@ -108,4 +228,6 @@ function transformDatabaseResponse(databaseResponse, keyMappings) {
 module.exports = {
   getSRMScheduleQuery,
   convertSRMScheduleQueryOutput,
+  getPracticeProblemsQuery,
+  convertPracticeProblemsQueryOutput,
 };
diff --git a/src/controllers/ChallengeController.js b/src/controllers/ChallengeController.js
index d279aab5..42db68f6 100644
--- a/src/controllers/ChallengeController.js
+++ b/src/controllers/ChallengeController.js
@@ -136,6 +136,16 @@ async function getSRMSchedule(req, res) {
   res.send(result);
 }
 
+/**
+ * Get Practice Problems
+ * @param {Object} req the request
+ * @param {Object} res the response
+ */
+async function getPracticeProblems(req, res) {
+  const result = await service.getPracticeProblems(req, req.authUser, req.query);
+  res.send(result);
+}
+
 module.exports = {
   searchChallenges,
   createChallenge,
@@ -146,4 +156,5 @@ module.exports = {
   sendNotifications,
   advancePhase,
   getSRMSchedule,
+  getPracticeProblems,
 };
diff --git a/src/routes.js b/src/routes.js
index eb121a6d..8d46e69d 100644
--- a/src/routes.js
+++ b/src/routes.js
@@ -46,6 +46,13 @@ module.exports = {
       method: "getSRMSchedule",
     },
   },
+  "/challenges/srms/practice/problems": {
+    get: {
+      controller: "ChallengeController",
+      method: "getPracticeProblems",
+      auth: "jwt",
+    },
+  },
   "/challenges/health": {
     get: {
       controller: "HealthController",
diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index 0b13b18f..8ad032e0 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -45,7 +45,12 @@ const {
 } = require("../common/challenge-helper");
 const deepEqual = require("deep-equal");
 const { getM2MToken } = require("../common/m2m-helper");
-const { getSRMScheduleQuery, convertSRMScheduleQueryOutput } = require("../common/srm-helper");
+const {
+  getSRMScheduleQuery,
+  getPracticeProblemsQuery,
+  convertSRMScheduleQueryOutput,
+  convertPracticeProblemsQueryOutput,
+} = require("../common/srm-helper");
 
 const challengeDomain = new ChallengeDomain(
   GRPC_CHALLENGE_SERVER_HOST,
@@ -2464,9 +2469,6 @@ async function indexChallengeAndPostToKafka(updatedChallenge, track, type) {
  * @param {Object} criteria the criteria
  */
 async function getSRMSchedule(criteria = {}) {
-  if (!criteria.statuses) {
-    criteria.statuses = ["A", "F", "P"];
-  }
   const sql = getSRMScheduleQuery(criteria);
   const result = await aclQueryDomain.rawQuery({ sql });
   return convertSRMScheduleQueryOutput(result);
@@ -2476,7 +2478,38 @@ getSRMSchedule.schema = {
   criteria: Joi.object().keys({
     registrationStartTimeAfter: Joi.date().default(new Date()),
     registrationStartTimeBefore: Joi.date(),
-    statuses: Joi.array().items(Joi.string().valid(["A", "F", "P"])),
+    statuses: Joi.array()
+      .items(Joi.string().valid(["A", "F", "P"]))
+      .default(["A", "F", "P"]),
+  }),
+};
+
+/**
+ * Get SRM Schedule
+ * @param {Object} currentUser the user who perform operation
+ * @param {Object} criteria the criteria
+ */
+async function getPracticeProblems(currentUser, criteria = {}) {
+  criteria.userId = currentUser.userId;
+  const sql = getPracticeProblemsQuery(criteria);
+  const result = await aclQueryDomain.rawQuery({ sql });
+  return convertPracticeProblemsQueryOutput(result);
+}
+
+getPracticeProblems.schema = {
+  currentUser: Joi.any(),
+  criteria: Joi.object().keys({
+    sortBy: Joi.string()
+      .valid(["problemName", "problemType", "points", "difficulty", "status", "myPoints"])
+      .default("problemId"),
+    sortOrder: Joi.string().valid(["asc", "desc"]).default("desc"),
+    page: Joi.page(),
+    perPage: Joi.perPage(),
+    difficulty: Joi.string().valid(["easy", "medium", "hard"]),
+    status: Joi.string().valid(["new", "viewed", "solved"]),
+    pointsLowerBound: Joi.number().integer(),
+    pointsUpperBound: Joi.number().integer(),
+    problemName: Joi.string(),
   }),
 };
 
@@ -2490,6 +2523,7 @@ module.exports = {
   sendNotifications,
   advancePhase,
   getSRMSchedule,
+  getPracticeProblems,
 };
 
 logger.buildService(module.exports);

From 97e600724cc28181e0f7a60e0cde1e0f718d96f8 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Fri, 24 Nov 2023 16:21:35 +0300
Subject: [PATCH 07/11] feat: add pagination to practice problems api

---
 src/common/srm-helper.js               | 17 +++++++++++------
 src/controllers/ChallengeController.js |  3 ++-
 src/services/ChallengeService.js       |  9 ++++++---
 3 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
index 4c14ce44..21d0f09b 100644
--- a/src/common/srm-helper.js
+++ b/src/common/srm-helper.js
@@ -163,7 +163,9 @@ function getPracticeProblemsQuery(criteria) {
     );
   }
 
-  const query = `SELECT
+  const queryCount = `SELECT count(*) AS count`;
+
+  const querySelect = `SELECT
   SKIP ${offset}
   FIRST ${criteria.perPage}
     p.problem_id AS problemId
@@ -182,8 +184,9 @@ function getPracticeProblemsQuery(criteria) {
          WHEN pcs.status_id = 150 THEN 'Solved'::nvarchar(50)
          WHEN pcs.status_id >= 120 AND pcs.status_id != 150 THEN 'Viewed'::nvarchar(50)
       END AS status
-  , NVL(pcs.points, 0) AS myPoints
-  FROM informixoltp:problem p
+  , NVL(pcs.points, 0) AS myPoints`;
+
+  const queryFrom = `FROM informixoltp:problem p
   INNER JOIN informixoltp:problem_type_lu ptl ON ptl.problem_type_id = p.problem_type_id
   INNER JOIN informixoltp:component c ON c.problem_id = p.problem_id
   INNER JOIN informixoltp:round_component rc ON rc.component_id = c.component_id
@@ -193,9 +196,11 @@ function getPracticeProblemsQuery(criteria) {
     criteria.userId
   }
   WHERE ${_.join(filters, " AND ")}
-  ORDER BY ${sortBy} ${criteria.sortOrder}
-  `;
-  return query;
+  ORDER BY ${sortBy} ${criteria.sortOrder}`;
+
+  const query = `${querySelect} ${queryFrom}`;
+  const countQuery = `${queryCount} ${queryFrom}`;
+  return { query, countQuery };
 }
 
 function convertSRMScheduleQueryOutput(queryOutput) {
diff --git a/src/controllers/ChallengeController.js b/src/controllers/ChallengeController.js
index 42db68f6..38768dc1 100644
--- a/src/controllers/ChallengeController.js
+++ b/src/controllers/ChallengeController.js
@@ -143,7 +143,8 @@ async function getSRMSchedule(req, res) {
  */
 async function getPracticeProblems(req, res) {
   const result = await service.getPracticeProblems(req, req.authUser, req.query);
-  res.send(result);
+  helper.setResHeaders(req, res, result);
+  res.send(result.result);
 }
 
 module.exports = {
diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index 8ad032e0..ca12770f 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -2491,9 +2491,12 @@ getSRMSchedule.schema = {
  */
 async function getPracticeProblems(currentUser, criteria = {}) {
   criteria.userId = currentUser.userId;
-  const sql = getPracticeProblemsQuery(criteria);
-  const result = await aclQueryDomain.rawQuery({ sql });
-  return convertPracticeProblemsQueryOutput(result);
+  const { query, countQuery } = getPracticeProblemsQuery(criteria);
+  const resultOutput = await aclQueryDomain.rawQuery({ sql: query });
+  const countOutput = await aclQueryDomain.rawQuery({ sql: countQuery });
+  const result = convertPracticeProblemsQueryOutput(resultQueryOutput);
+  const total = countOutput.rows[0].fields[0].value;
+  return { total, page: criteria.page, perPage: criteria.perPage, result };
 }
 
 getPracticeProblems.schema = {

From 04bda304269154cf7334cb26a46bc01547216087 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Fri, 24 Nov 2023 16:47:56 +0300
Subject: [PATCH 08/11] ci: deploy to dev

---
 .circleci/config.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.circleci/config.yml b/.circleci/config.yml
index cc1a3e94..b5bbd3f0 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -91,6 +91,7 @@ workflows:
             only:
             - dev
             - hotfix/budget-update
+            - CORE-140
 
     - "build-qa":
         context: org-global

From c9695b59c6cc80628e01bb71a13bfdcab0bc4a66 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Fri, 24 Nov 2023 17:01:02 +0300
Subject: [PATCH 09/11] fix: omit order by clause from count queryt

---
 src/common/srm-helper.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
index 21d0f09b..54a28b06 100644
--- a/src/common/srm-helper.js
+++ b/src/common/srm-helper.js
@@ -192,13 +192,13 @@ function getPracticeProblemsQuery(criteria) {
   INNER JOIN informixoltp:round_component rc ON rc.component_id = c.component_id
   INNER JOIN informixoltp:round r ON r.round_id = rc.round_id AND r.status = 'A' AND r.round_type_id = 3
   INNER JOIN informixoltp:room ro ON ro.round_id = rc.round_id AND ro.room_type_id = 3
-  LEFT  JOIN informixoltp:component_state pcs ON pcs.round_id = rc.round_id AND pcs.component_id = c.component_id AND pcs.coder_id = ${
-    criteria.userId
-  }
-  WHERE ${_.join(filters, " AND ")}
-  ORDER BY ${sortBy} ${criteria.sortOrder}`;
+  LEFT  JOIN informixoltp:component_state pcs ON pcs.round_id = rc.round_id AND pcs.component_id = c.component_id AND pcs.coder_id = ${criteria.userId}`;
+
+  const queryWhere = filters.length ? `WHERE ${_.join(filters, " AND ")}` : "";
+
+  const queryOrder = `ORDER BY ${sortBy} ${criteria.sortOrder}`;
 
-  const query = `${querySelect} ${queryFrom}`;
+  const query = `${querySelect} ${queryFrom} ${queryWhere} ${queryOrder}`;
   const countQuery = `${queryCount} ${queryFrom}`;
   return { query, countQuery };
 }

From 0b40d0ea8d8f5cea1c4543b19604e931edd349af Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Fri, 24 Nov 2023 17:19:38 +0300
Subject: [PATCH 10/11] feat: add pagination to srm schedule

---
 src/common/srm-helper.js         | 21 +++++++++++++++++----
 src/services/ChallengeService.js |  8 +++++++-
 2 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
index 54a28b06..afe5ed4a 100644
--- a/src/common/srm-helper.js
+++ b/src/common/srm-helper.js
@@ -48,8 +48,21 @@ const PracticeProblemsKeyMappings = _.reduce(
  * @param {Array<String>} filter.statuses the statues
  * @param {Date} filter.registrationStartTimeAfter the start of the registration time
  * @param {Date=} filter.registrationStartTimeBefore the end of the registration time
+ * @param {String} filter.sortBy the sort field
+ * @param {String} filter.sortOrder the sort order
+ * @param {Number} filter.page the sort order
+ * @param {Number} filter.perPage the sort order
  */
 function getSRMScheduleQuery(filter) {
+  const offset = (filter.page - 1) * filter.perPage;
+  let sortBy = filter.sortBy;
+  if (criteria.sortBy === "registrationStartTime") {
+    sortBy = "reg.start_time";
+  } else if (criteria.sortBy === "codingStartTime") {
+    sortBy = "coding.start_time";
+  } else if (criteria.sortBy === "challengeStartTime") {
+    sortBy = "challenge.start_time";
+  }
   const statuses = _.join(
     _.map(filter.statuses, (s) => `'${_.toUpper(s)}'`),
     ","
@@ -64,8 +77,9 @@ function getSRMScheduleQuery(filter) {
       : ""
   }`;
 
-  const query = `SELECT 
-  FIRST 50
+  const query = `SELECT
+  SKIP ${offset}
+  FIRST ${filter.perPage}
   r.round_id AS roundId
   , r.name AS name
   , r.short_name AS shortName
@@ -95,8 +109,7 @@ function getSRMScheduleQuery(filter) {
   r.round_type_id in (1,2,10) AND
   UPPER(r.status) in (${statuses}) AND 
   ${registrationTimeFilter}
-  ORDER BY 
-  reg.start_time DESC`;
+  ORDER BY ${sortBy} ${filter.sortOrder}`;
   return query;
 }
 
diff --git a/src/services/ChallengeService.js b/src/services/ChallengeService.js
index ca12770f..c0c28d12 100644
--- a/src/services/ChallengeService.js
+++ b/src/services/ChallengeService.js
@@ -2481,6 +2481,12 @@ getSRMSchedule.schema = {
     statuses: Joi.array()
       .items(Joi.string().valid(["A", "F", "P"]))
       .default(["A", "F", "P"]),
+    sortBy: Joi.string()
+      .valid(["registrationStartTime", "codingStartTime", "challengeStartTime"])
+      .default("registrationStartTime"),
+    sortOrder: Joi.string().valid(["asc", "desc"]).default("asc"),
+    page: Joi.page(),
+    perPage: Joi.perPage(),
   }),
 };
 
@@ -2494,7 +2500,7 @@ async function getPracticeProblems(currentUser, criteria = {}) {
   const { query, countQuery } = getPracticeProblemsQuery(criteria);
   const resultOutput = await aclQueryDomain.rawQuery({ sql: query });
   const countOutput = await aclQueryDomain.rawQuery({ sql: countQuery });
-  const result = convertPracticeProblemsQueryOutput(resultQueryOutput);
+  const result = convertPracticeProblemsQueryOutput(resultOutput);
   const total = countOutput.rows[0].fields[0].value;
   return { total, page: criteria.page, perPage: criteria.perPage, result };
 }

From b6bd76b5853522ae6f40fed6d05f340f329946f3 Mon Sep 17 00:00:00 2001
From: eisbilir <emre.isbilir@gmail.com>
Date: Fri, 24 Nov 2023 17:38:46 +0300
Subject: [PATCH 11/11] update count query

---
 src/common/srm-helper.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/common/srm-helper.js b/src/common/srm-helper.js
index afe5ed4a..a87791e0 100644
--- a/src/common/srm-helper.js
+++ b/src/common/srm-helper.js
@@ -56,11 +56,11 @@ const PracticeProblemsKeyMappings = _.reduce(
 function getSRMScheduleQuery(filter) {
   const offset = (filter.page - 1) * filter.perPage;
   let sortBy = filter.sortBy;
-  if (criteria.sortBy === "registrationStartTime") {
+  if (filter.sortBy === "registrationStartTime") {
     sortBy = "reg.start_time";
-  } else if (criteria.sortBy === "codingStartTime") {
+  } else if (filter.sortBy === "codingStartTime") {
     sortBy = "coding.start_time";
-  } else if (criteria.sortBy === "challengeStartTime") {
+  } else if (filter.sortBy === "challengeStartTime") {
     sortBy = "challenge.start_time";
   }
   const statuses = _.join(
@@ -143,7 +143,7 @@ function getPracticeProblemsQuery(criteria) {
   } else if (criteria.sortBy === "status") {
     sortBy = "pcs.status_id";
   } else if (criteria.sortBy === "myPoints") {
-    sortBy = "pcs.point";
+    sortBy = "NVL(pcs.points, 0)";
   }
   const filters = [];
   if (criteria.difficulty) {
@@ -212,7 +212,7 @@ function getPracticeProblemsQuery(criteria) {
   const queryOrder = `ORDER BY ${sortBy} ${criteria.sortOrder}`;
 
   const query = `${querySelect} ${queryFrom} ${queryWhere} ${queryOrder}`;
-  const countQuery = `${queryCount} ${queryFrom}`;
+  const countQuery = `${queryCount} ${queryFrom} ${queryWhere}`;
   return { query, countQuery };
 }