Finished PLZ Inputs and saving

.idea/gradle.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>

app/build.gradle.kts

@@ -2,6 +2,7 @@ plugins {
     alias(libs.plugins.android.application)
     alias(libs.plugins.kotlin.android)
     alias(libs.plugins.kotlin.compose)
+    id("kotlin-parcelize")
 }
 
 android {
@@ -60,4 +61,9 @@ dependencies {
     androidTestImplementation(libs.androidx.ui.test.junit4)
     debugImplementation(libs.androidx.ui.tooling)
     debugImplementation(libs.androidx.ui.test.manifest)
+
+    implementation("androidx.datastore:datastore-preferences:1.0.0")
+    implementation("androidx.datastore:datastore:1.0.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.5.1") // For JSON serialization
+
 }

app/src/main/java/com/module/breeze/SettingsActivity.kt

@@ -1,5 +1,6 @@
 package com.module.breeze
 
+
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
@@ -16,12 +17,17 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.text.KeyboardOptions
 import androidx.compose.material.icons.outlined.Home
 import androidx.compose.material.icons.outlined.Map
+import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Icon
-import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextField
 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
@@ -29,8 +35,58 @@ import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.datastore.core.DataStore
+import androidx.datastore.preferences.core.Preferences
+import androidx.datastore.preferences.core.edit
+import androidx.datastore.preferences.core.stringPreferencesKey
+import androidx.datastore.preferences.preferencesDataStore
 import com.module.breeze.ui.theme.BreezeTheme
-import java.nio.file.WatchEvent
+import kotlinx.coroutines.flow.first
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+
+var plzArrayStatus: List<String> = listOf(
+    "Loading...",
+    "Loading...",
+    "Loading...",
+    "Loading...",
+    "Loading...",
+    "Loading...",
+    "Loading...",
+)
+
+
+// ### Start ChatGPT + Fixing
+val SHARED_PLZ_KEY = stringPreferencesKey("shared-plz")
+val Context.dataStore: DataStore<Preferences> by preferencesDataStore(name = "settings")
+
+suspend fun saveArray(context: Context, array: List<String>) {
+    context.dataStore.edit { preferences ->
+        preferences[SHARED_PLZ_KEY] = Json.encodeToString(array)
+    }
+}
+
+suspend fun getArray(context: Context): List<String> {
+    val preferences = context.dataStore.data.first()
+    return preferences[SHARED_PLZ_KEY]?.let { Json.decodeFromString(it) } ?: emptyList()
+}
+// ### End ChatGPT
+
+suspend fun getPLZ(index: Int, ctx: Context): String {
+    var arr = getArray(ctx)
+    if (arr.isEmpty() || arr.size != 7) {
+        arr = listOf("8005", "8005", "8005", "8400", "8400", "8500", "8500")
+    }
+    plzArrayStatus = arr
+    return arr[index]
+}
+
+suspend fun setPLZ(index: Int, value: String, ctx: Context) {
+    var arr = plzArrayStatus.toMutableList()
+    arr[index] = value
+    saveArray(ctx, arr)
+}
+
 
 class SettingsActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -52,14 +108,17 @@ class SettingsActivity : ComponentActivity() {
             var intent = Intent(ctx, MainActivity::class.java)
             ctx.startActivity(intent)
         }
+
+
     }
 }
 
 @Composable
 fun Settings(modifier: Modifier = Modifier) {
     val ctx = LocalContext.current
+
     Navigation(iconStyle.Home, "Home Icon", onClick = {
-       SettingsActivity.openHome(ctx)
+        SettingsActivity.openHome(ctx)
     })
     Column(
         modifier = Modifier.fillMaxSize(),
@@ -83,13 +142,13 @@ fun Settings(modifier: Modifier = Modifier) {
                 fontSize = 22.sp
             )
         }
-        ConfiguredLocationDay("Monday")
-        ConfiguredLocationDay("Tuesday")
-        ConfiguredLocationDay("Wednesday")
-        ConfiguredLocationDay("Thursday")
-        ConfiguredLocationDay("Friday")
-        ConfiguredLocationDay("Saturday")
-        ConfiguredLocationDay("Sunday")
+        ConfiguredLocationDay("Monday", 0, ctx)
+        ConfiguredLocationDay("Tuesday", 1, ctx)
+        ConfiguredLocationDay("Wednesday", 2, ctx)
+        ConfiguredLocationDay("Thursday", 3, ctx)
+        ConfiguredLocationDay("Friday", 4, ctx)
+        ConfiguredLocationDay("Saturday", 5, ctx)
+        ConfiguredLocationDay("Sunday", 6, ctx)
     }
 }
 
@@ -102,22 +161,48 @@ fun GreetingPreview2() {
 }
 
 @Composable
-fun ConfiguredLocationDay(dayName: String = "day") {
-    Row(
-        verticalAlignment = Alignment.CenterVertically,
-        modifier = Modifier.padding(0.dp, 4.dp)
-    ) {
-        Text(
-            text = dayName,
-            fontWeight = breezeFontWeight,
-            modifier = Modifier.width(100.dp)
-        )
-        TextField(
-            value = "0000",
-            onValueChange = {},
-            label = { Text("PLZ") },
-            keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
-            modifier = Modifier.width(110.dp)
-        )
+fun ConfiguredLocationDay(dayName: String = "day", index: Int, ctx: Context) {
+    var plz by remember { mutableStateOf("") }
+    var isLoadingGet by remember { mutableStateOf(false) }
+    var isLoadingSet by remember { mutableStateOf(false) }
+
+    LaunchedEffect(index) {
+        isLoadingGet = true
+        plz = getPLZ(index, ctx)
+        isLoadingGet = false
+    }
+
+    LaunchedEffect(plz) {
+        isLoadingSet = true
+        setPLZ(index, plz, ctx)
+        isLoadingSet = false
+    }
+
+    if (isLoadingSet || isLoadingGet) {
+        CircularProgressIndicator()
+    } else {
+        Row(
+            verticalAlignment = Alignment.CenterVertically,
+            modifier = Modifier.padding(0.dp, 4.dp)
+        ) {
+            Text(
+                text = dayName,
+                fontWeight = breezeFontWeight,
+                modifier = Modifier.width(100.dp)
+            )
+            TextField(
+                value = plz,
+                onValueChange = { newPlz ->
+                    var cutNewPlz = newPlz
+                    if (newPlz.length > 4) {
+                        cutNewPlz = newPlz.substring(0, 4)
+                    }
+                    plz = cutNewPlz
+                },
+                label = { Text("PLZ") },
+                keyboardOptions = KeyboardOptions(keyboardType = KeyboardType.Number),
+                modifier = Modifier.width(110.dp)
+            )
+        }
     }
 }