WIP lecture notes

mobile/app/src/main/java/com/odweta/solon/Global.kt

@@ -41,6 +41,7 @@ const val timeTableFilePath: String = "timetable.json"
 const val userDataFilePath: String = "userdata.json"
 const val marksFilePath: String = "marks.json"
 const val settingsDataFilePath: String = "settings.txt"
+const val lectureNotesFilePath: String = "lecture_notes.csv"
 lateinit var fileDir: File
 var width: Int = 0
 var height: Int = 0
@@ -114,6 +115,8 @@ var settings : SettingsData = SettingsData()
 
 var done: Boolean = false
 
+var internetAwaitListenerRunning: Boolean = false
+
 var timeTableAvailOffline: Boolean = false
 var marksAvailOffline: Boolean = false
 
@@ -135,6 +138,8 @@ var resetNav: Boolean = false
 
 var isAPISetUp: Boolean = false
 
+var lectureNotes: HashMap<Int, String> = hashMapOf()
+
 var selectedDay: Int = 0
 var dayEndString: String = ""
 

mobile/app/src/main/java/com/odweta/solon/Launch.kt

@@ -16,6 +16,7 @@ private var toast2Shown: Boolean = false
 private lateinit var coscope_: CoroutineScope
 
 private fun setOnInternetAvailListener(ctx: Context, coscope: CoroutineScope) {
+    internetAwaitListenerRunning = true
     coscope.launch {
         while (true) {
             if (Util.internetAvail(ctx) && !internetAvail) {
@@ -140,7 +141,9 @@ private suspend fun launchPhase1(ctx: Context) {
 
     if (!timeTableAvailOffline || !marksAvailOffline || internetAvail) {
         // set up the API (required for later uses of it)
+        if (!isAPISetUp) {
             Network.setupAPI()
+        }
 
         if (internetAvail) {
             // cancel a toast, if any
@@ -272,11 +275,15 @@ private fun launchPhase2(ctx: Context) {
         dayList.add(day)
     }
 
+    Util.loadLectureIds()
+
     loaded = true
 
     coscope_.launch {
+        if (!internetAwaitListenerRunning) {
             setOnInternetAvailListener(ctx, coscope_)
         }
+    }
 
     val role = if (Parsing.userIsParent()) {
         " – Rodič"

mobile/app/src/main/java/com/odweta/solon/Marks.kt

@@ -20,7 +20,6 @@ import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.filled.Adjust
 import androidx.compose.material.icons.filled.ArrowBackIosNew
 import androidx.compose.material.icons.filled.AutoAwesome
 import androidx.compose.material3.Button

mobile/app/src/main/java/com/odweta/solon/Timetable.kt

@@ -12,43 +12,51 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.border
+import androidx.compose.foundation.clickable
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxHeight
-import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.pager.HorizontalPager
 import androidx.compose.foundation.pager.rememberPagerState
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.selection.TextSelectionColors
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
+import androidx.compose.material3.AlertDialog
-import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.BasicAlertDialog
-import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.ButtonDefaults
-import androidx.compose.material3.Icon
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextField
+import androidx.compose.material3.TextFieldColors
+import androidx.compose.material3.TextFieldDefaults
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.rememberCoroutineScope
+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.Color
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import androidx.compose.ui.window.Dialog
+import androidx.compose.ui.window.DialogProperties
+import androidx.compose.ui.zIndex
 import com.odweta.solon.ui.theme.PastelGreen
 import com.odweta.solon.ui.theme.PastelGreenTransparent
 import com.odweta.solon.ui.theme.PastelRed
 import com.odweta.solon.ui.theme.PastelRedTransparent
 import com.odweta.solon.ui.theme.PastelYellow
 import com.odweta.solon.ui.theme.PastelYellowTransparent
-import kotlinx.coroutines.launch
+import java.security.MessageDigest
 import java.time.LocalDate
 import java.time.LocalTime
 import java.time.format.DateTimeFormatter
+import kotlin.math.abs
 
 @Composable
 fun TimetableScreen() {
@@ -76,45 +84,6 @@ fun DayPager(modifier: Modifier = Modifier) {
     }
 }
 
-//@Composable
-/*fun RefreshButton(modifier: Modifier = Modifier) {
-    val coscope = rememberCoroutineScope()
-    val ctx = LocalContext.current
-
-    Box(
-        modifier = Modifier
-            .padding(bottom = 10.dp)
-            .background(color = Color.Black, shape = RoundedCornerShape(roundedCornerDimen))
-    ) {
-        Button(
-            onClick = {
-                coscope.launch {
-                    fetchNewData(ctx, coscope)
-
-                }
-            },
-            colors = ButtonDefaults.buttonColors(
-                contentColor = Color.White,
-                containerColor = Color.Black
-            ),
-            modifier = Modifier
-                .border(
-                    width = 5.dp,
-                    shape = RoundedCornerShape(roundedCornerDimen),
-                    color = PastelYellow
-                )
-                .padding(vertical = 10.dp)
-        ) {
-            Icon(
-                imageVector = Icons.Default.Refresh,
-                contentDescription = "Refresh icon",
-                modifier = Modifier.size(25.dp)
-            )
-        }
-    }
-}
- */
-
 private fun getSubjectColor(s: Subject, transparent: Boolean): Color {
     return if (s.free) {
         if (transparent) {
@@ -198,9 +167,11 @@ fun subjectModifier(d: Day, s: Subject, lectureNumber: Int): Modifier {
     }
 }
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 private fun DayScreen(day: Day) {
     val scrollState = rememberScrollState()
+    var showDetailDialog by remember { mutableStateOf(false) }
 
     Column(modifier = Modifier.fillMaxSize()) {
         Row(
@@ -228,7 +199,7 @@ private fun DayScreen(day: Day) {
                 .padding(horizontal = 5.dp)
                 .verticalScroll(scrollState)
         ) {
-            for (subject in day.subjects) {
+            for ((subjectIndex, subject) in day.subjects.withIndex()) {
                 val amoledModifier = if (settings.useAmoledMode.checked.value) {
                     Modifier
                         .width(50.dp)
@@ -270,9 +241,8 @@ private fun DayScreen(day: Day) {
                     }
                 }
 
-                Row(
+                Box (modifier = subjectModifier(day, subject, subject.number.toInt())) {
-                    modifier = subjectModifier(day, subject, subject.number.toInt())
+                    Row {
-                ) {
                         if (subject.substitute != "2") {
                             Box(
                                 modifier = amoledModifier,
@@ -370,7 +340,7 @@ private fun DayScreen(day: Day) {
                             Column(
                                 modifier = Modifier
                                     .fillMaxHeight()
-                                .padding(end = 20.dp),
+                                    .padding(end = 10.dp),
                                 verticalArrangement = Arrangement.Center,
                                 horizontalAlignment = Alignment.End
                             ) {
@@ -397,10 +367,39 @@ private fun DayScreen(day: Day) {
                             }
                         }
                     }
+
+                    Box(modifier = Modifier.fillMaxSize().zIndex(99f).clickable { showDetailDialog = true })
+
+                    if (showDetailDialog) {
+                        Dialog(
+                            onDismissRequest = { showDetailDialog = false },  // Close the dialog on dismiss
+                            properties = DialogProperties(
+                                dismissOnBackPress = true,
+                                dismissOnClickOutside = true
+                            ),
+                            content = {
+                                Box(
+                                    modifier = Modifier
+                                        .width(100.dp)
+                                        .height(100.dp)
+                                        .background(
+                                            color = Color.Black,
+                                            shape = RoundedCornerShape(roundedCornerDimen)
+                                        )
+                                ) {
+                                    TextField(
+                                        value = lectureNotes[Util.getLectureId(day.date, subjectIndex)] ?: "",
+                                        onValueChange = { newText ->
+                                            lectureNotes[Util.getLectureId(day.date, subjectIndex)] = newText
+                                            Util.saveLectureIds()
+                                        }
+                                    )
+                                }
+                            }
+                        )
+                    }
+                }
             }
-            //if (settings.showRefreshButton.checked.value) {
-            //    Spacer(modifier = Modifier.height(90.dp))
-            //}
         }
     }
 }

mobile/app/src/main/java/com/odweta/solon/Util.kt

@@ -12,6 +12,8 @@ import androidx.core.content.pm.PackageInfoCompat
 import java.io.File
 import java.io.IOException
 import java.nio.charset.Charset
+import java.security.MessageDigest
+import kotlin.math.abs
 import kotlin.math.round
 
 class Util {
@@ -115,12 +117,14 @@ class Util {
         }
 
         fun isAppInForeground(context: Context, packageName: String): Boolean {
-            val activityManager = context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
+            val activityManager =
+                context.getSystemService(Context.ACTIVITY_SERVICE) as ActivityManager
             val runningAppProcesses = activityManager.runningAppProcesses ?: return false
 
             for (processInfo in runningAppProcesses) {
                 if (processInfo.importance == ActivityManager.RunningAppProcessInfo.IMPORTANCE_FOREGROUND &&
-                    processInfo.processName == packageName) {
+                    processInfo.processName == packageName
+                ) {
                     return true
                 }
             }
@@ -215,7 +219,10 @@ class Util {
                 val packageManager = context.packageManager
                 val packageName = context.packageName
                 val packageInfo = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
-                    packageManager.getPackageInfo(packageName, PackageManager.PackageInfoFlags.of(0))
+                    packageManager.getPackageInfo(
+                        packageName,
+                        PackageManager.PackageInfoFlags.of(0)
+                    )
                 } else {
                     packageManager.getPackageInfo(packageName, 0)
                 }
@@ -249,5 +256,49 @@ class Util {
 
             return auxSettingsData
         }
+
+        fun getLectureId(date: String, subjectIndex: Int): Int {
+            val concat = "$date[$subjectIndex]"
+            val bytes = concat.toByteArray()
+            val md5AsBytes = MessageDigest.getInstance("MD5").digest(bytes)
+            return abs(md5AsBytes.take(4).fold(0) { acc, byte ->
+                (acc shl 8) or (byte.toInt() and 0xff)
+            })
+        }
+
+        fun csvToHashMap(filePath: String): HashMap<Int, String> {
+            val hashMap = HashMap<Int, String>()
+            val lines = fileToString(filePath).lines()
+            for (line in lines) {
+                if (line.isBlank()) continue
+
+                val parts = line.split(",")
+
+                if (parts.size == 2) {
+                    val key = parts[0].trim().toInt()
+                    val value = parts[1].trim()
+                    hashMap[key] = value
+                }
+            }
+
+            return hashMap
+        }
+
+        fun hashMapToCsv(hashMap: HashMap<Int, String>): String {
+            var result = ""
+            for ((key, value) in hashMap) {
+                result += "$key,$value\n"
+            }
+            return result
+        }
+
+        fun loadLectureIds() {
+            lectureNotes = csvToHashMap(lectureNotesFilePath)
+        }
+
+        fun saveLectureIds() {
+            val toSave = hashMapToCsv(lectureNotes)
+            saveStringToFile(lectureNotesFilePath, toSave)
+        }
     }
 }