refactor: modify variable naming and extract constants

[liuzg-coder]

modify variable naming and extract constants

[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

100.0% Coverage
0.0% Duplication

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 68.38%. Comparing base (a709b28) to head (ee5a99b).
Report is 1311 commits behind head on 3.3.

Additional details and impacted files

@@             Coverage Diff              @@
##                3.3   #13176      +/-   ##
============================================
- Coverage     68.42%   68.38%   -0.05%     
  Complexity        8        8              
============================================
  Files          1717     1717              
  Lines         70795    70795              
  Branches      10236    10236              
============================================
- Hits          48442    48413      -29     
- Misses        17665    17695      +30     
+ Partials       4688     4687       -1     

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