Started StundenplanActivity

began with the implementation of sharedPreferences
added LessonStoreManager
added TimeTableSetupActivity (-> + entries in the AndroidManifest.xml & strings.xml)
committed version of "Stundenplan" is unfinished and malfunctional (switching to Laptop for holidays)

app/src/main/java/com/schoolapp/cleverclass/StundenplanActivity.kt

@@ -1,11 +1,15 @@
 package com.schoolapp.cleverclass
 
+import android.content.Context
+import android.content.Intent
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
@@ -18,19 +22,47 @@ import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
+import com.schoolapp.cleverclass.LessonStoreManager.getLessons
 import com.schoolapp.cleverclass.ui.theme.CleverClassTheme
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+
+private val listOfDays = listOf("mon", "tue", "wed", "thu", "fri", "sat", "sun")
+private val lessonGrabberIndex = 0
 
 class StundenplanActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
+        val sharedPreferences = this.getSharedPreferences("TimeTable", Context.MODE_PRIVATE)
+        val maxLessons = sharedPreferences.getString("maxLessons", "").toString()
+        val lessonLength = sharedPreferences.getString("lessonLength", "").toString()
+
         setContent {
             CleverClassTheme {
                 Surface(
                     modifier = Modifier.fillMaxSize(),
                     color = MaterialTheme.colorScheme.background
                 ) {
+                    println(maxLessons)
+                    //println(lessonLength)
+                    if (maxLessons.isEmpty() || lessonLength.isEmpty()) {
+                        val intent = Intent(this@StundenplanActivity, TimeTableSetupActivity::class.java).apply {
+                            putExtra(TimeTableSetupActivity.TYPE_KEY, "FirstSetup")
+                        }
+                        startActivity(intent)
+                    }
+
                     StundenplanContent(activity = this)
                 }
             }
@@ -64,7 +96,46 @@ fun StundenplanContent(activity: ComponentActivity){
         )
 
         Column() {
-
+            listOfDays.forEach() {currentDay ->
+                Day(currentDay)
+            }
         }
     }
+}
+
+data class LessonData(
+    val subject: String,
+    val teacher: String,
+    val room: String
+)
+
+@Composable
+fun Day(day: String) {
+    var lessons = emptyList<LessonData>()
+    val context = LocalContext.current
+    Column {
+        LaunchedEffect(lessons, context) {
+            getLessons(context, day).collect { savedLessons ->
+                lessons = savedLessons.toMutableList()
+            }
+        }
+        lessons.forEach() {
+            Lesson(subject = it.subject, teacher = it.teacher, room = it.room)
+        }
+    }
+}
+
+@Composable
+fun Lesson(subject: String, teacher: String, room: String) {
+    Box(modifier = Modifier
+        .size(200.dp, 100.dp)
+        .padding(3.dp)
+    ) {
+        Text(modifier = Modifier.align(Alignment.Center),
+            text = "$subject\n@$room\n/w$teacher")
+    }
+}
+
+fun currentDay(): String {
+    return "hi"
 }