Refactor/command interface

[vihar-s1]

Issue Referenced

closes #63

Describe the Changes

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Additional Setup Requirements

No Response

Necessary Conditions

• I have commented on my code, particularly in hard-to-understand areas.
• My changes generate no new warnings.
• The changes do not involve any Private data leak/reveal.
• Secrets, if any, are kept hidden via an environment file, whose structure has been explained via documentation.