package io.oxygenhub.android

import android.os.Bundle

import androidx.activity.ComponentActivity

import androidx.activity.compose.setContent

import androidx.activity.enableEdgeToEdge

import androidx.compose.runtime.getValue

import androidx.compose.runtime.key

import androidx.lifecycle.compose.collectAsStateWithLifecycle

import io.oxygenhub.android.ui.nav.SignedInApp

import io.oxygenhub.android.ui.nav.rememberViewModel

import io.oxygenhub.android.ui.signin.SignInScreen

import io.oxygenhub.android.ui.signin.SignInViewModel

import io.oxygenhub.android.ui.theme.OxygenHubTheme

import uniffi.rust_core.oxygenGreeting

class MainActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)

        enableEdgeToEdge()

        val container = (application as OxygenHubApp).container

        val sessions = container.sessions

        setContent {

            OxygenHubTheme {

                val session by sessions.session.collectAsStateWithLifecycle()

                val signedIn = session

                val api = signedIn?.let { sessions.api() }

                if (signedIn == null || api == null) {

                    SignInScreen(

                        rememberViewModel { SignInViewModel(sessions, container::deviceAuth, container.clientName, DEFAULT_HUB) },

                    )

                } else {

                    // A new session starts the signed-in app afresh: nothing of the last account's is kept.

                    key(signedIn) {

                        SignedInApp(

                            session = signedIn,

                            api = api,

                            nativeCore = { oxygenGreeting(signedIn.username) },

                            onSignOut = { sessions.signOut() },

                        )

                    }

                }

            }

        }

    }

}