Goal:

Refactor the LanguageBatch Class to look less disastrous!

The solution will be evaluated based on the following goals:

• Keep the original functionality(The src/run.php file must run successfully and produce expected results).
• Increase the inner code quality with SOLID Principles
• Increase test coverage with unit tests (If you can).

Set up / Submission

• Fork this Repository to your account.
• Clone this repository from the forked version on your account.
• Refactor the code on a branch.
• When done, send PR to this repository (master branch) for reviews

Rules:

• Commit after each coding step, when the system is in working condition.
• The interface of the LanguageBatchBo can't be changed (the src/run.php should remain the same), but (of course) it's content can change and it can be split into new classes.
• The ApiCall, and Config classes are mock/simplified versions of the original dependencies, they can not be changed.
• The error message of the exceptions can be simplified.
• The console output of the script doesn't have to be the same as in the original version.
• Use PHPUnit as testing framework if You want to write tests.
• Inline comments are not necessary.