In the begining of time, when The Company was small and The Data could fit in some fucking excel sheets, Those Who Came Before implemented some java tool to issue invoices, notify customers and clear received payments.

Then came the Time Of The Great Expanse, when The Company grew to unthinkable levels. Headcount increased with each passing day, and The Data shows that everything was going great!

But when the future seemed bright, came The Stall-Out. The days when The Company could not expand as fast as it did before. And Those Who Came Before left, abandoning their Undocumented Java Tool to its own luck.

Those who came after knew nothing of the inner workings of the Undocumented Java Tool. They knew only that the magical Jar would take a couple fucking excel spreadsheets and spit out reports and send emails like magic.
And those were The Dark Days.

In the darkness, The Data grew to be a monster. Soon a fucking excel spreadsheet could not hold The Data contained any longer. Those Who Came After, fearing the wrath of The Undocumented Java Tool, dared not mess with its code. Instead, they fucking cut away the lowest volume transactions from the fucking input spreadsheet, and left the company to report the unbilled invoices as "surprise losses". Fucking script kiddies, were Those Who Came After.

Then, at The Darkest of Days (literally, Dec 21st), marched into the project The Six Witchers, who fear not the Demon of Refactoring.

This story is still unfolding. Will The Six Witchers manage to unravel the mysteries of The Undocumented Java Tool? Will they be able to reverse engineer the fucking black box, and scale it's magic into a modern application?
Will they decrease revenue forecasting error by at least 2% in a single strike?

Only the future will tell.

Story of WTF happened to my job

During my employment in (name censored) was stressful, They claimed I didn't complete my task on time which they constantly remove me from git and documentation(which have to follow their style of returning data), I kept emailing, slack, WhatsApp calls them, mostly and predictably got ghosted and blocked.

So How the fuck am I supposed to push my code or code without the documentation (I can actually, prevent refactoring every time, following the documentation is the good way to go.)

On the sprint review, they will complain about me not committing and pushing the code. (I did commit locally, but can't push, they removed me from the fucking repo) and not done.

Tried reasoning, telling the obvious reasons with them, doesn't work. They come out the second reason of me "NOT COMMUNICATING". Sometimes I can get to git merge from dev to my branch and get tonnes of fucked up code. I reviewed the code, and I can't tolerate it.

Lately, I overheard them mocking and cheering me about to get fired over a zoom meeting (I was in there, they forgot to remove me). Their conversation is about me being a coloniser, a jerk, betraying Chinese ancestors for being not Chinese enough.

I was like: "Why the fuck does their conversation sound like they are tucked in the Qin dynasty?"

Frequently I got labelled as unprofessional.

How is cussing about my ancestors, personal and life a professional behaviour?

Is it common to look at code you wrote 1 to 2 years ago and think "what the hell was i thinking, this mess needs refactoring"?

First code review ever, and it's for my job.

Guy was really nice and polite.
Even correctly guessed I don't have much experience with professional coding outside my associates degree and prior job where I was the only programmer most of the time I was there.

Said that since it works functionally and is such a small program there's nothing wrong with it if it meets our purposes ( low priority project )

Then he politely in his words 'nitpicks' 3 points and gives me ideas on how to make it more reliable and less likely to need replaced or completely refactoring in the future.

I think my first time getting code reviewed went well. And one of the things he mentioned was something I didn't know how to do and only took 20 some minutes to implement so I also learned something new from this

Problem: ugly-ass php spaghetti code that has a technical debt of 16(!!!) years. I mean, it's so spaghetti that has two legacy frameworks that talk to each other inside the same monolith.

Observation: after two months my colleagues, trying to refactoring stuff, they were able to touch so little stuff that it almost made no difference.

How much is worth a rewrite? Because i don't think i can make a difference on a codebase so messy.
I know that rewrite is not the answer 99.9999% of the time, but i have tons of doubts here.

Monthly Update call
Me : I need 2 undivided weeks in the next 3 months to make some refactoring to our codebase, so we dont have issues in scaling.

Senior Manager (with years of tech experience almost equal to my age) :
Why would we need that, We are already hosted on AWS so we can just spin up more instances.

Me ( trying to hold the rage inside) : No it doesnt work that way, that will only hurt us more than help.

Him : What if we try with a bigger instance size. Its AWS, sure they will have a bigger instance.

Me : No, tha....
Him : (cuts me off) How about we use autoscaling and let AWS decide

Me : (Silently praying for a gun that shots across video calls.)

Dev: Woah look at this code! I might be a genius!

Also dev a few months later: Woah WTH is this shit? Was I totally dumb or what?

So I am pretty fair dev at Java and have been doing freelancing for sometime apart from normal full time job.
Got a client , a well funded one, who raised a decent chunk of money recently.
Got me do a couple of different areas right from refactoring and bumping their performance to all the way setting up AWS Services like RDS,Lambdas,Dynamo,SQS.
It was going good , money was coming in for the initial part.
Thinking that money is not the concern here , I accepted work at runtime and gave quotations about the additional work.

However now that all is done and deployed , the client simply refuses to pay me the money and has ghosted me horribly than my ex ever did.

I have access to their GitHub,AWS(I setup myself).

Need suggestions of whats the best way I can fuck them up if they decide to not pay even after a few more professional polite attempts I do .

sidenote : They had a pretty dumb db design and blindly had resorted to services in AWS and the pricing is still a major point of concern for them.

expanding ticket scope with refactoring

id really rather not