Implemented button to change dates for an event to reflect the academic quarter

app/src/main/java/com/denizk0461/studip/sheet/DevCodeSheet.kt

@@ -7,6 +7,7 @@ import android.util.Base64
 import android.view.View
 import android.widget.Toast
 import com.denizk0461.studip.R
+import com.denizk0461.studip.data.showToast
 import com.denizk0461.studip.data.viewBinding
 import com.denizk0461.studip.databinding.SheetDevCodeBinding
 import java.nio.charset.StandardCharsets
@@ -60,43 +61,34 @@ class DevCodeSheet(
                 "QkJVT0s/".d() -> launchLink("aHR0cHM6Ly95b3V0dS5iZS90Rm1PMm1TY0tHNA==".d())
                 "NEVENT" -> { // nuke events
                     nukeEvents()
-                    showToast("Nuked all events")
+                    showToast(context, "Nuked all events")
                 }
                 "NCANTE" -> { // nuke canteens
                     nukeOfferCanteens()
-                    showToast("Nuked all canteens")
+                    showToast(context, "Nuked all canteens")
                 }
                 "NDATES" -> { // nuke dates
                     nukeOfferDates()
-                    showToast("Nuked all dates")
+                    showToast(context, "Nuked all dates")
                 }
                 "NCATEG" -> { // nuke categories
                     nukeOfferCategories()
-                    showToast("Nuked all categories")
+                    showToast(context, "Nuked all categories")
                 }
                 "NITEMS" -> { // nuke items
                     nukeOfferItems()
-                    showToast("Nuked all items")
+                    showToast(context, "Nuked all items")
                 }
                 "NEVERY" -> { // nuke everything
                     nukeEverything()
-                    showToast("Nuked everything")
+                    showToast(context, "Nuked everything")
                 }
-                else -> showToast("code is invalid")
+                else -> showToast(context, "code is invalid")
             }
             dismiss()
         }
     }
 
-    /**
-     * Present the user with a toast.
-     *
-     * @param text  text to display
-     */
-    private fun showToast(text: String) {
-        Toast.makeText(context, text, Toast.LENGTH_SHORT).show()
-    }
-
     /**
      * Launches a web link.
      *
@@ -104,7 +96,7 @@ class DevCodeSheet(
      */
     private fun launchLink(link: String) {
         // Let the user know they accomplished something with their life
-        showToast("✨")
+        showToast(context, "✨")
 
         // Give the user a slight dopamine boost
         startActivity(Intent(Intent.ACTION_VIEW, Uri.parse(link)))

app/src/main/java/com/denizk0461/studip/sheet/ScheduleUpdateSheet.kt

@@ -1,11 +1,17 @@
 package com.denizk0461.studip.sheet
 
 import android.os.Bundle
+import android.os.Handler
 import android.util.Log
 import android.view.View
 import androidx.fragment.app.FragmentActivity
+import androidx.transition.TransitionManager
 import com.denizk0461.studip.R
 import com.denizk0461.studip.data.parseToMinutes
+import com.denizk0461.studip.data.showToast
+import com.denizk0461.studip.data.timeslotsAcademicQuarter
+import com.denizk0461.studip.data.timeslotsAcademicQuarterEnd
+import com.denizk0461.studip.data.timeslotsAcademicQuarterStart
 import com.denizk0461.studip.data.viewBinding
 import com.denizk0461.studip.databinding.SheetScheduleUpdateBinding
 import com.denizk0461.studip.dialog.TimePickerFragment
@@ -40,6 +46,34 @@ class ScheduleUpdateSheet(
         binding.editTextLecturers.setText(event.lecturer)
         binding.editTextRoom.setText(event.room)
 
+        // Show academic quarter suggestion if it is applicable
+        binding.buttonAcademicQuarter.visibility = if (
+            timeslotsAcademicQuarter.contains(timeslotStart) &&
+            timeslotsAcademicQuarter.contains(timeslotEnd)
+        ) {
+            binding.buttonAcademicQuarter.setOnClickListener {
+                try {
+                    val newStart = timeslotsAcademicQuarterStart[timeslotStart]
+                        ?: throw NullPointerException()
+                    val newEnd = timeslotsAcademicQuarterEnd[timeslotEnd]
+                        ?: throw NullPointerException()
+
+                    timeslotStart = newStart
+                    binding.buttonTimeStart.text = newStart
+                    timeslotEnd = newEnd
+                    binding.buttonTimeEnd.text = newEnd
+
+                    TransitionManager.beginDelayedTransition(binding.sheet)
+                    binding.buttonAcademicQuarter.visibility = View.GONE
+                } catch (e: NullPointerException) {
+                    showToast(context, getString(R.string.sheet_schedule_update_hint_quarter_error))
+                }
+            }
+            View.VISIBLE
+        } else {
+            View.GONE
+        }
+
         // Prepare timestamp buttons
         binding.buttonTimeStart.text = timeslotStart
         binding.buttonTimeStart.setOnClickListener {