[INTERNAL] Compose Multiplatform

[nsh07]

Move the app to Compose Multiplatform to allow desktop and possibly iOS support in the future.

[mabd-dev]

@nsh07 I can work on this, if you don't mind.

But before, if you want architectural/design/setup style you want to have let me know to

[nsh07]

@mabd-dev Sure, thanks! Can you move all the code to androidMain and migrate the build system to a single target (android) KMP build system? I'll do the rest after you've made a PR for this (moving UI to commonMain, creating desktop target etc). Don't make any other changes for now, I'll have to consider some other stuff before I move stuff into commonMain, including a migration to Koin from the manual DI that the codebase currently uses. Thanks!

[nsh07]

Btw make sure to branch out of dev and make a PR against dev as well

[mabd-dev]

new file structure (not the final one)

1. androidApp: is the main entry point for the android application. Ideally it should contain MainActivity and TomatoApplication

2. composeApp:

• androidMain: would contain all android specific code
• commonMain: contains all shared code ui+logic between all targets
• desktopMain: (later) contains desktop specific code
• etc...

Blocker

Dependency Injection

• TomatoApplication have contains variable which is used all over the code.
• Widgets use MainActivity class when some things are clicked
• AGP is nagging about usage of BuildConfig. BTW, we can get most of it's data (debug, package name, version code, version name etc...) using application
• foss and play variants data must be injected to composeApp

All these prevents me from moving code from androidApp to composeApp/src/androidMain

@nsh07 overall the most common issue here is DI, it has to be done in a way so that we can inject services/dependencies from androidApp to composeApp/src/androidMain or composeApp/src/commonMain
same thing would be for future targets

[nsh07]

So the manual DI that I'm currently using won't work? I guess I'll move the DI to Koin first then, you can then work on this. Would that be ok?