feat: Use global instances for tokenManager & authRepository

app/src/main/java/com/p_vacho/neat_calendar/LoginActivity.kt

@@ -16,7 +16,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
 
 class LoginActivity : AppCompatActivity() {
-    private lateinit var authRepository: AuthRepository
+    private val authRepository by lazy { (application as MyApplication).authRepository }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -28,9 +28,6 @@ class LoginActivity : AppCompatActivity() {
             insets
         }
 
-        val tokenManager = TokenManager(this)
-        authRepository = AuthRepository(tokenManager)
-
         val loginButton = findViewById<Button>(R.id.loginButton)
         val registerButton = findViewById<Button>(R.id.registerButton)
 

app/src/main/java/com/p_vacho/neat_calendar/MainActivity.kt

@@ -19,7 +19,7 @@ class MainActivity : AppCompatActivity() {
 
     private var apiReachable = false
     private var loggedIn = false
-    private lateinit var authRepository: AuthRepository
+    private val authRepository by lazy { (application as MyApplication).authRepository }
 
     override fun onCreate(savedInstanceState: Bundle?) {
         // Attach the splash screen to the activity before initialization begins
@@ -32,9 +32,6 @@ class MainActivity : AppCompatActivity() {
         enableEdgeToEdge()
         setContentView(R.layout.activity_main)
 
-        var tokenManager = TokenManager(this)
-        authRepository = AuthRepository(tokenManager)
-
         // Perform initialization (api reachability check & login)
         CoroutineScope(Dispatchers.Main).launch {
             initialize()

app/src/main/java/com/p_vacho/neat_calendar/MyApplication.kt

@@ -2,12 +2,24 @@ package com.p_vacho.neat_calendar
 
 import android.app.Application
 import com.p_vacho.neat_calendar.api.RetrofitClient
+import com.p_vacho.neat_calendar.auth.AuthRepository
+import com.p_vacho.neat_calendar.auth.TokenManager
 
 class MyApplication : Application() {
+    lateinit var tokenManager: TokenManager
+        private set
+
+    lateinit var authRepository: AuthRepository
+        private set
+
     override fun onCreate() {
         super.onCreate()
 
-        // Initialize RetrofitClient
+        // Initialize RetrofitClient (mutating the global object)
         RetrofitClient.initialize(this)
+
+        // Initialize TokenManager and AuthRepository globally
+        tokenManager = TokenManager(this)
+        authRepository = AuthRepository(tokenManager)
     }
 }

app/src/main/java/com/p_vacho/neat_calendar/api/AuthInterceptor.kt

@@ -7,18 +7,24 @@ import com.p_vacho.neat_calendar.LoginActivity
 import com.p_vacho.neat_calendar.auth.AuthRepository
 import com.p_vacho.neat_calendar.auth.TokenManager
 import androidx.core.content.ContextCompat
+import com.p_vacho.neat_calendar.MyApplication
 import kotlinx.coroutines.runBlocking
 import okhttp3.Interceptor
+import okhttp3.Protocol
 import okhttp3.Response
+import okhttp3.ResponseBody
 import kotlin.coroutines.cancellation.CancellationException
 
 class AuthInterceptor(
     private val context: Context,
 ) : Interceptor {
 
-    private val tokenManager: TokenManager = TokenManager(context)
-    private val authRepository: AuthRepository = AuthRepository(tokenManager)
-
+    private val tokenManager: TokenManager by lazy {
+        (context.applicationContext as MyApplication).tokenManager
+    }
+    private val authRepository: AuthRepository by lazy {
+        (context.applicationContext as MyApplication).authRepository
+    }
 
     companion object {
         // List of URLs to bypass in the interceptor