Update DSBmobile

app/build.gradle.kts

@@ -61,14 +61,11 @@ dependencies {
     implementation("androidx.datastore:datastore-preferences:1.0.0")
     implementation("com.google.code.gson:gson:2.9.0")
     implementation(platform("androidx.compose:compose-bom:2023.03.00"))
-    implementation(platform("androidx.compose:compose-bom:2023.03.00"))
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")
     androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
     androidTestImplementation("androidx.compose.ui:ui-test-junit4")
     androidTestImplementation(platform("androidx.compose:compose-bom:2023.03.00"))
-    androidTestImplementation(platform("androidx.compose:compose-bom:2023.03.00"))
-    androidTestImplementation(platform("androidx.compose:compose-bom:2023.03.00"))
     debugImplementation("androidx.compose.ui:ui-tooling")
     debugImplementation("androidx.compose.ui:ui-test-manifest")
 }

app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools">
 
     <uses-permission android:name="android.permission.INTERNET" />
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
     <application
         android:allowBackup="true"
@@ -14,6 +15,11 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.CleverClass"
         tools:targetApi="31">
+        <activity
+            android:name=".DSBDayViewActivity"
+            android:exported="false"
+            android:label="@string/title_activity_dsbday_view"
+            android:theme="@style/Theme.CleverClass" />
         <activity
             android:name=".MebisActivity"
             android:exported="false"

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

@@ -1,10 +1,14 @@
 package com.schoolapp.cleverclass
 
+import android.content.Context
+import android.content.Intent
 import android.graphics.BitmapFactory
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.compose.foundation.Image
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxSize
@@ -15,6 +19,9 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.ArrowBack
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.Divider
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
@@ -24,25 +31,29 @@ 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.graphics.asImageBitmap
 import androidx.compose.ui.unit.dp
 import com.schoolapp.cleverclass.ui.theme.CleverClassTheme
+import com.schoolapp.cleverclass.ui.theme.MiddleColor
 import kotlinx.coroutines.DelicateCoroutinesApi
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
 import kotlinx.coroutines.launch
+import org.json.JSONObject
 import java.io.File
 
+
 class DSBActivity : ComponentActivity() {
-    @OptIn(DelicateCoroutinesApi::class)
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        GlobalScope.launch(Dispatchers.IO) {
-            downloadDSB(this@DSBActivity)
-        }
-
         setContent {
             CleverClassTheme {
                 Surface(
@@ -57,9 +68,19 @@ class DSBActivity : ComponentActivity() {
 }
 
 // Content of DSBmobile
-@OptIn(ExperimentalMaterial3Api::class)
+@OptIn(ExperimentalMaterial3Api::class, DelicateCoroutinesApi::class)
 @Composable
 fun DSBContent(activity: ComponentActivity){
+    var loadingState by remember {
+        mutableStateOf(1)
+    }
+
+    LaunchedEffect(Unit) {
+        GlobalScope.launch(Dispatchers.IO) {
+            loadingState = downloadDSB(activity)
+        }
+    }
+
     Column {
         TopAppBar(
             colors = TopAppBarDefaults.centerAlignedTopAppBarColors(MaterialTheme.colorScheme.primaryContainer),
@@ -78,30 +99,120 @@ fun DSBContent(activity: ComponentActivity){
                     )
                 }
             },
+            actions = {
+                if(loadingState != 1) {
+                    IconButton(
+                        onClick = {
+                            loadingState = 1
+                            GlobalScope.launch(Dispatchers.IO) {
+                                loadingState = downloadDSB(activity)
+                            }
+                        }
+                    ) {
+                        Icon(
+                            imageVector = Icons.Filled.Refresh,
+                            contentDescription = null,
+                            modifier = Modifier.size(28.dp),
+                            tint = MaterialTheme.colorScheme.onPrimaryContainer
+                        )
+                    }
+                }
+            },
             modifier = Modifier.fillMaxWidth()
         )
 
-        Column(modifier = Modifier.verticalScroll(rememberScrollState())) {
+        when (loadingState) {
+            1 -> {
+                DSBLoading()
+            }
+            -1 -> {
+                DSBNoInternet()
+            }
+            else -> {
+                Column(
+                    horizontalAlignment = Alignment.CenterHorizontally,
+                    modifier = Modifier
+                        .verticalScroll(rememberScrollState())
+                        .fillMaxWidth()
+                ) {
+                    Spacer(modifier = Modifier.height(32.dp))
+
                     val mainFolder = File(activity.filesDir, "dataDSB")
 
                     mainFolder.listFiles()?.forEach { folder ->
-                DayPrefab(folder = folder)
+                        DayPrefab(folder, activity)
-                Spacer(modifier = Modifier.height(48.dp))
+                        Spacer(modifier = Modifier.height(32.dp))
+                        Divider()
+                        Spacer(modifier = Modifier.height(32.dp))
+                    }
+                }
             }
         }
     }
 }
 
 @Composable
-fun DayPrefab(folder: File){
+fun DSBLoading(){
-    val imageFiles = folder.listFiles { file -> file.extension == "jpg" }?.toList()
+    Box(
+        modifier = Modifier.fillMaxSize(),
+        contentAlignment = Alignment.Center
+    ){
+        CircularProgressIndicator()
+    }
+}
 
-    Column {
+@Composable
-        imageFiles?.forEach {
+fun DSBNoInternet(){
-            val imageBitmap = BitmapFactory.decodeFile(it.absolutePath)
+    Box(
+        modifier = Modifier.fillMaxSize(),
+        contentAlignment = Alignment.Center
+    ){
+        Text(
+            text = "Keine Internetverbindung",
+            style = MaterialTheme.typography.bodySmall,
+            color = MaterialTheme.colorScheme.onBackground
+        )
+    }
+}
+
+@Composable
+fun DayPrefab(folder: File, activity: Context){
+    Box(
+        contentAlignment = Alignment.Center,
+        modifier = Modifier
+            .fillMaxWidth()
+            .height(300.dp)
+            .clickable {
+                val intent = Intent(activity, DSBDayViewActivity::class.java).apply {
+                    putExtra(DSBDayViewActivity.FOLDER_KEY, folder.absolutePath)
+                }
+                activity.startActivity(intent)
+            }
+    ) {
+        val information = JSONObject(File(folder, "info.json").readText())
+        val previewImageBitmap = BitmapFactory.decodeFile(File(folder, "0.jpg").absolutePath)
+
+        Column(horizontalAlignment = Alignment.CenterHorizontally) {
+            Text(
+                text = "${information.get("FormatInfo")} - ${information.get("PlanInfo").toString().removeSuffix(".pdf")}",
+                style = MaterialTheme.typography.bodySmall,
+                color = MaterialTheme.colorScheme.onBackground
+            )
 
-            Image(bitmap = imageBitmap.asImageBitmap(), contentDescription = null)
             Spacer(modifier = Modifier.height(8.dp))
+
+            Text(
+                text = information.get("Date").toString(),
+                style = MaterialTheme.typography.bodySmall,
+                color = MiddleColor
+            )
+
+            Spacer(modifier = Modifier.height(8.dp))
+
+            Image(
+                bitmap = previewImageBitmap.asImageBitmap(),
+                contentDescription = null
+            )
         }
     }
 }

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

@@ -0,0 +1,107 @@
+package com.schoolapp.cleverclass
+
+import android.graphics.BitmapFactory
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ArrowBack
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.unit.dp
+import com.schoolapp.cleverclass.ui.theme.CleverClassTheme
+import org.json.JSONObject
+import java.io.File
+
+private lateinit var folder : File
+private lateinit var information : JSONObject
+
+class DSBDayViewActivity : ComponentActivity() {
+    companion object{
+        const val FOLDER_KEY = "folder_key"
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        folder = File(intent.getStringExtra(FOLDER_KEY) ?: "")
+        information = JSONObject(File(folder, "info.json").readText())
+
+        setContent {
+            CleverClassTheme {
+                Surface(
+                    modifier = Modifier.fillMaxSize(),
+                    color = MaterialTheme.colorScheme.background
+                ) {
+                    DSBDayViewContent(activity = this)
+                }
+            }
+        }
+    }
+}
+
+// Content of DSBDayView
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun DSBDayViewContent(activity: ComponentActivity){
+    Column{
+        TopAppBar(
+            colors = TopAppBarDefaults.centerAlignedTopAppBarColors(MaterialTheme.colorScheme.primaryContainer),
+            title = {
+                Text(
+                    text = information.get("PlanInfo").toString(),
+                    style = MaterialTheme.typography.headlineSmall,
+                    color = MaterialTheme.colorScheme.onPrimaryContainer
+                )},
+            navigationIcon = {
+                IconButton(onClick = { activity.finish() }) {
+                    Icon(
+                        imageVector = Icons.Filled.ArrowBack,
+                        contentDescription = null,
+                        modifier = Modifier.size(28.dp),
+                        tint = MaterialTheme.colorScheme.onPrimaryContainer
+                    )
+                }
+            },
+            modifier = Modifier.fillMaxWidth()
+        )
+
+        val imageFiles = folder.listFiles { file -> file.extension == "jpg" }?.toList()
+
+        Column(
+            modifier = Modifier
+                .padding(8.dp)
+                .verticalScroll(rememberScrollState())
+        ) {
+            imageFiles?.forEach {
+                Image(
+                    bitmap = BitmapFactory.decodeFile(it.absolutePath).asImageBitmap(),
+                    contentDescription = null,
+                    contentScale = ContentScale.FillWidth,
+                    modifier = Modifier.fillMaxWidth()
+                )
+                Spacer(modifier = Modifier.height(8.dp))
+            }
+        }
+    }
+}

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

@@ -1,6 +1,8 @@
 package com.schoolapp.cleverclass
 
 import android.content.Context
+import android.net.ConnectivityManager
+import android.net.NetworkCapabilities
 import android.util.Base64
 import android.util.Log
 import org.json.JSONObject
@@ -16,12 +18,17 @@ import java.time.LocalDateTime
 import java.util.UUID
 
 
-suspend fun downloadDSB(context: Context){
+suspend fun downloadDSB(context: Context): Int{
+    if(!isInternetAvailable(context))
+        return -1
+
     val mainDir = createDataFolder(context)
 
     val jsonResponse = downloadDataTask()
 
     downloadImagesTask(jsonResponse, mainDir)
+
+    return 0
 }
 
 private fun downloadDataTask() : String {
@@ -123,6 +130,7 @@ private fun downloadImagesTask(jsonResponse: String, mainDir : File){
 
         val day = File(mainDir, dayID.toString())
         day.mkdir()
+        createDayInformationJson(day, jsonDayObject)
 
         val jsonPagesObject = jsonDayObject.getJSONArray("Childs")
 
@@ -136,6 +144,20 @@ private fun downloadImagesTask(jsonResponse: String, mainDir : File){
     }
 }
 
+private fun createDayInformationJson(folder: File, jsonDayObject: JSONObject){
+    val infoFile = File(folder, "info.json")
+    val date = jsonDayObject.get("Date")
+    val formatInfo = jsonDayObject.get("Title")
+    val planInfo = jsonDayObject.getJSONArray("Childs").getJSONObject(0).get("Title")
+
+    val infoJson = JSONObject()
+    infoJson.put("Date", date)
+    infoJson.put("FormatInfo", formatInfo)
+    infoJson.put("PlanInfo", planInfo)
+
+    infoFile.writeText(infoJson.toString())
+}
+
 private fun downloadImage(folder: File, url: URL, fileName: String){
     val file = File(folder, fileName)
 
@@ -177,3 +199,10 @@ private fun clearFolder(directory: File) {
         }
     }
 }
+
+private fun isInternetAvailable(context: Context): Boolean {
+    val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
+    val network = connectivityManager.activeNetwork
+    val networkCapabilities = connectivityManager.getNetworkCapabilities(network)
+    return networkCapabilities?.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET) ?: false
+}

app/src/main/java/com/schoolapp/cleverclass/ui/theme/Color.kt

@@ -11,6 +11,7 @@ val White90 = Color(0xFFEBEBEB)
 val White70 = Color(0xFFD3D3D3)
 
 val TextOnColouredButton = Color(0xFF121212)
+val MiddleColor = Color(0xFF808080)
 
 val dismissLight = Color(0xFF536DFE)
 val dismissDark = Color(0xFF448AFF)

app/src/main/java/com/schoolapp/cleverclass/ui/theme/Theme.kt

@@ -22,6 +22,7 @@ private val DarkColorScheme = darkColorScheme(
     onPrimaryContainer = White100,
     secondary = dismissDark,
     onBackground = White100,
+    outlineVariant = Black70,
     primary = Color(0xFF536DFE)
 )
 
@@ -31,6 +32,7 @@ private val LightColorScheme = lightColorScheme(
     onPrimaryContainer = Black100,
     secondary = dismissLight,
     onBackground = Black100,
+    outlineVariant = White70,
     primary = Color(0xFF8396FF)
 )
 

app/src/main/res/values/strings.xml

@@ -9,4 +9,5 @@
     <string name="dialog_schließen">Schließen</string>
     <string name="title_activity_dsbactivity">DSBActivity</string>
     <string name="title_activity_mebis">MebisActivity</string>
+    <string name="title_activity_dsbday_view">DSBDayViewActivity</string>
 </resources>