♻️ factorize LifeCycle and simplify its types

[BenoitZugmeyer]

Motivation

The LifeCycle implementation was duplicated in Logs and RUM, because we used function overload to have proper typings and those cannot be abstracted away.

The typings around LifeCycle was a bit noisy, as each function signature needed to be repeated for each event type, and the data associated needed to be repeated for each function.

Changes

Instead of function overloads, use an EventMap based implementation, similar to the pattern used by the TypeScript libraries to type event listeners.

This allows to factorize the LifeCycle code between RUM and Logs and simplify typings.

Also I added simple unit tests around LifeCycles.

Testing

• Local
• Staging
• Unit
• End to end

---

I have gone over the contributing documentation.

[bits-bot]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ BenoitZugmeyer
❌ desponda
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[codecov-commenter]

Codecov Report

Merging #2165 (50cf7f1) into main (046e3a5) will increase coverage by 0.02%.
The diff coverage is 95.65%.

@@            Coverage Diff             @@
##             main    #2165      +/-   ##
==========================================
+ Coverage   93.72%   93.74%   +0.02%     
==========================================
  Files         198      199       +1     
  Lines        6089     6078      -11     
  Branches     1357     1355       -2     
==========================================
- Hits         5707     5698       -9     
+ Misses        382      380       -2     

Impacted Files	Coverage Δ
packages/logs/src/boot/startLogs.ts	86.11% <0.00%> (ø)
packages/core/src/tools/abstractLifeCycle.ts	100.00% <100.00%> (ø)
packages/logs/src/domain/lifeCycle.ts	100.00% <100.00%> (+14.28%)	⬆️
...domain/logsCollection/console/consoleCollection.ts	100.00% <100.00%> (ø)
...c/domain/logsCollection/logger/loggerCollection.ts	100.00% <100.00%> (ø)
...sCollection/networkError/networkErrorCollection.ts	88.70% <100.00%> (ø)
...c/domain/logsCollection/report/reportCollection.ts	100.00% <100.00%> (ø)
...sCollection/runtimeError/runtimeErrorCollection.ts	100.00% <100.00%> (ø)
packages/rum-core/src/domain/lifeCycle.ts	100.00% <100.00%> (ø)

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more