ChapletFlowActivity.kt

ChapletFlowActivity.kt

class ChapletFlowActivity : ComponentActivity() {

    private val viewModel: ChapletFlowViewModel by viewModel()

    companion object {
        const val EXTRA_CHAPLET_NAME = "extra_terco_object_key"

        fun newIntent(context: Context, chapletName: String): Intent {
            return Intent(context, ChapletFlowActivity::class.java).apply {
                putExtra(EXTRA_CHAPLET_NAME, chapletName)
            }
        }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        val chapletName = intent?.getStringExtra(EXTRA_CHAPLET_NAME)
            ?: run {
                toast(getString(R.string.error_loading))
                finish()
                return
            }
        
        viewModel.initializeFlow(chapletId)

        setContent {
            SanctusAppTheme {
                SetupNavigation()
            }
        }
    }

    @Composable
    private fun SetupNavigation() {
        val backStack = viewModel.backStack

        BackHandler(enabled = backStack.size > 1) {
            viewModel.popBackStack()
        }

        NavDisplay(
            backStack = backStack,
            onBack = {
                if (!viewModel.popBackStack()) {
                    finish()
                }
            },
            entryDecorators = listOf(
                rememberSceneSetupNavEntryDecorator(),
                rememberSavedStateNavEntryDecorator(),
                rememberViewModelStoreNavEntryDecorator()
            ),
            entryProvider = entryProvider {
                entry<ChapletStartStep> {
                    ChapletStartStepScreen(
                        onPrayStart = {
                            viewModel.onPrayStart()
                        }
                    )
                }
                entry<ChapletPray> {
                    ChapletPrayScreen(
                        chapletName = it.chapletName,
                        onClose = {
                            finish()
                        },
                        onFinish = {
                            viewModel.onPrayFinish()
                        }
                    )
                }
                entry<ChapletDone> {
                    ChapletFeedbackScreen(
                        onFinish = {
                            finish()
                        }
                    )
                }
            },
            transitionSpec = {
                slideInHorizontally(initialOffsetX = { it }) togetherWith
                        slideOutHorizontally(targetOffsetX = { -it })
            },
            popTransitionSpec = {
                slideInHorizontally(initialOffsetX = { -it }) togetherWith
                        slideOutHorizontally(targetOffsetX = { it })
            },
            predictivePopTransitionSpec = {
                slideInHorizontally(initialOffsetX = { -it }) togetherWith
                        slideOutHorizontally(targetOffsetX = { it })
            }
        )
    }
}