added a refresh button to the timetable

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

@@ -1,22 +1,18 @@
 package com.odweta.solon
 
 import android.view.Window
-import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.runtime.Composable
 import androidx.compose.runtime.MutableState
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.unit.dp
-import androidx.core.view.WindowCompat
 import com.odweta.solon.ui.theme.PastelYellow
-import com.odweta.solon.ui.theme.PastelYellowTransparent
 import okhttp3.OkHttpClient
 import java.io.File
 

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

@@ -37,7 +37,7 @@ private fun setOnInternetAvailListener(ctx: Context, coscope: CoroutineScope) {
     }
 }
 
-private fun fetchNewData(ctx: Context, coscope: CoroutineScope) {
+fun fetchNewData(ctx: Context, coscope: CoroutineScope) {
     coscope.launch {
         done = false
 

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

@@ -4,6 +4,7 @@ import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
 import androidx.compose.material.icons.Icons

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

@@ -1,7 +1,6 @@
 package com.odweta.solon
 
 import android.annotation.SuppressLint
-import android.text.format.Time
 import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Arrangement
@@ -14,22 +13,33 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.border
 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.verticalScroll
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Refresh
+import androidx.compose.material3.Button
+import androidx.compose.material3.ButtonDefaults
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Shapes
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.RectangleShape
+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.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.odweta.solon.ui.theme.PastelGreen
@@ -38,16 +48,33 @@ 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.delay
+import kotlinx.coroutines.launch
 import java.time.LocalDate
-import java.time.LocalDateTime
 import java.time.LocalTime
 import java.time.format.DateTimeFormatter
 
-@OptIn(ExperimentalFoundationApi::class)
 @Composable
 fun TimetableScreen() {
-    val pagerState = rememberPagerState( pageCount = { days.size } )
+    Box(
+        modifier = Modifier
+            .fillMaxSize(),
+        contentAlignment = Alignment.BottomCenter
+    ) {
+        DayPager()
+        Box(
+            modifier = Modifier
+            .padding(bottom = 10.dp)
+            .background(color = Color.Black, shape = RoundedCornerShape(roundedCornerDimen))
+        ) {
+            RefreshButton()
+        }
+    }
+}
+
+@OptIn(ExperimentalFoundationApi::class)
+@Composable
+fun DayPager(modifier: Modifier = Modifier) {
+    val pagerState = rememberPagerState(pageCount = { days.size })
     HorizontalPager(
         state = pagerState,
         modifier = Modifier.fillMaxSize()
@@ -56,6 +83,37 @@ fun TimetableScreen() {
     }
 }
 
+@Composable
+fun RefreshButton(modifier: Modifier = Modifier) {
+    val coscope = rememberCoroutineScope()
+    val ctx = LocalContext.current
+
+    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) {
@@ -287,6 +345,8 @@ private fun DayScreen(day: Day) {
                     }
                 }
             }
+            // TODO: remove when added settings to turn the refresh button on/off
+            Spacer(modifier = Modifier.height(90.dp))
         }
     }
 }

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

@@ -1,6 +1,8 @@
 package com.odweta.solon
 
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable