ifElseChain: rewrite if-else to switch statement (gocritic)

ifElseChain: rewrite if-else to switch statement (gocritic)

issues found

The following actions use a deprecated Node.js version and will be forced to run on node20: technote-space/get-diff-action@v6, golangci/golangci-lint-action@v3. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

var-naming: func parameter classId should be classID (revive)

var-naming: var cId1 should be cID1 (revive)

var-naming: var cId2 should be cID2 (revive)

var-naming: var pId1 should be pID1 (revive)

var-naming: var pId2 should be pID2 (revive)

var-naming: method ProjectId should be ProjectID (revive)

var-naming: method ClassId should be ClassID (revive)

var-naming: method ProjectId should be ProjectID (revive)

var-naming: method ClassId should be ClassID (revive)