app/build.gradle

@@ -13,7 +13,7 @@ android {
         minSdkVersion 21
         targetSdkVersion 28
         versionCode 13
-        versionName "0.4.1"
+        versionName "0.4.90"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         resValue "string", "build_time", buildTime()
         setProperty("archivesBaseName", "projectlaogai-$versionName")
@@ -37,7 +37,7 @@ dependencies {
     implementation 'org.jetbrains.anko:anko-commons:0.10.8'
     implementation 'androidx.appcompat:appcompat:1.0.2'
     implementation 'androidx.legacy:legacy-support-v4:1.0.0'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha5'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-beta1'
     implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.0.0'
     implementation 'com.google.android.material:material:1.0.0'
     implementation 'com.google.code.gson:gson:2.8.5'
@@ -47,8 +47,8 @@ dependencies {
 
 
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
-    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
 }
 
 static def buildTime() {

app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt

@@ -36,6 +36,7 @@ import com.google.android.material.navigation.NavigationView
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.app_bar_main.*
 import org.mosad.seil0.projectlaogai.controller.CacheController
+import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.mensaMenu
 import org.mosad.seil0.projectlaogai.controller.PreferencesController
 import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorAccent
 import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cColorPrimary
@@ -45,7 +46,6 @@ import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.
 import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.timetableCacheTime
 import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
 import org.mosad.seil0.projectlaogai.fragments.*
-import java.sql.Date
 import java.util.*
 import kotlin.system.measureTimeMillis
 
@@ -171,11 +171,12 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
             val currentDay = Calendar.getInstance().get(Calendar.DAY_OF_WEEK)
             val cal = Calendar.getInstance()
 
+
             // timetable sunday workaround
             cal.time = Date(timetableCacheTime * 1000)
             val timetableCacheDay = cal.get(Calendar.DAY_OF_WEEK)
 
-            // TODO this sill backfire if someone has to update before the server finished updating the timetable at 0001/0101
+            // TODO this will backfire if someone has to update before the server finished updating the timetable at 0001/0101
             // update blocking if a) it`s monday and the last cache was not on a monday or b) the cache is older than 6 days
             if((currentDay == Calendar.MONDAY && timetableCacheDay != Calendar.MONDAY) || (System.currentTimeMillis() / 1000) - timetableCacheTime > 518400) {
                 println("updating timetable after sunday!")
@@ -186,16 +187,29 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
                 jobB.get()
             }
 
-            // mensa sunday workaround
-            cal.time = Date(System.currentTimeMillis()) // reset to current time
 
-            // update blocking if it's sunday after 1500
+
-            // TODO and the last update was before 1500
+//            //mensa sunday workaround
-            if(currentDay == Calendar.SUNDAY && cal.get(Calendar.HOUR_OF_DAY) >= 15) {
+//            cal.time = Date(System.currentTimeMillis()) // reset to current time
-                val jobA = TCoRAPIController.getMensa(this)
+//
-                jobA.get()
+//            // update blocking if it's sunday after 1500
+//            if(currentDay == Calendar.SUNDAY && cal.get(Calendar.HOUR_OF_DAY) >= 15) {
+//                TCoRAPIController.getMensa(this).get()
+//            }
+
+            // TODO test!!
+            // new sunday bug fix
+            CacheController.readMensa(this)
+            val mensaUpdateTime = Date(mensaMenu.meta.updateTime * 1000)
+            cal.time = mensaUpdateTime
+
+            // if it's monday and the last cache update was on sunday or is older than 24hr, update blocking
+            if ((currentDay == Calendar.MONDAY && cal.get(Calendar.DAY_OF_WEEK) == Calendar.SUNDAY) || currentTime - mensaMenu.meta.updateTime > 86400) {
+                println("update blocking")
+                TCoRAPIController.getMensa(this).get()
             }
 
+
             // get the cached files
             val cache = CacheController(this)
             cache.readStartCache(cCourse.courseName)
@@ -211,6 +225,7 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
                 TCoRAPIController.getTimetable(cCourse.courseName, 0, this)
                 TCoRAPIController.getTimetable(cCourse.courseName, 1, this)
             }
+
         }
         println("startup completed in $startupTime ms")
     }

app/src/main/java/org/mosad/seil0/projectlaogai/controller/CacheController.kt

@@ -24,14 +24,14 @@ package org.mosad.seil0.projectlaogai.controller
 
 import android.content.Context
 import com.google.gson.Gson
+import com.google.gson.GsonBuilder
 import com.google.gson.JsonParser
-import org.mosad.seil0.projectlaogai.hsoparser.Course
-import org.mosad.seil0.projectlaogai.hsoparser.MensaWeek
-import org.mosad.seil0.projectlaogai.hsoparser.TimetableWeek
 import java.io.BufferedReader
 import java.io.File
 import java.io.FileReader
 import com.google.gson.reflect.TypeToken
+import org.mosad.seil0.projectlaogai.hsoparser.*
+import kotlin.collections.ArrayList
 
 class CacheController(cont: Context) {
 
@@ -39,12 +39,12 @@ class CacheController(cont: Context) {
 
     companion object {
         var coursesList = ArrayList<Course>()
-        var mensaCurrentWeek = MensaWeek()
-        var mensaNextWeek = MensaWeek()
         var timetables = ArrayList<TimetableWeek>()
+        var mensaMenu = MensaMenu(MensaMeta(0, ""), MensaWeek(), MensaWeek())
 
         /**
-         * read current and next weeks mensa menus from the cached file
+         * get the MensaMenu object from the cached json,
+         * if cache is empty create the cache file
          */
         fun readMensa(context: Context) {
             val file = File(context.filesDir, "mensa.json")
@@ -54,16 +54,11 @@ class CacheController(cont: Context) {
                 TCoRAPIController.getMensa(context).get()
             }
 
-
             val fileReader = FileReader(file)
             val bufferedReader = BufferedReader(fileReader)
             val mensaObject = JsonParser().parse(bufferedReader.readLine()).asJsonObject
 
-            val currentWeek = mensaObject.getAsJsonObject("currentWeek")
+            mensaMenu = GsonBuilder().create().fromJson(mensaObject, MensaMenu(MensaMeta(0, ""), MensaWeek(), MensaWeek()).javaClass)
-            val nextWeek = mensaObject.getAsJsonObject("nextWeek")
-
-            mensaCurrentWeek = Gson().fromJson(currentWeek, MensaWeek().javaClass)
-            mensaNextWeek = Gson().fromJson(nextWeek, MensaWeek().javaClass)
         }
 
         /**

app/src/main/java/org/mosad/seil0/projectlaogai/fragments/HomeFragment.kt

@@ -35,7 +35,7 @@ import kotlinx.android.synthetic.main.fragment_home.*
 import org.jetbrains.anko.doAsync
 import org.jetbrains.anko.uiThread
 import org.mosad.seil0.projectlaogai.R
-import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.mensaCurrentWeek
+import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.mensaMenu
 import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.timetables
 import org.mosad.seil0.projectlaogai.hsoparser.DataTypes
 import org.mosad.seil0.projectlaogai.hsoparser.Meal
@@ -78,10 +78,10 @@ class HomeFragment : Fragment() {
         uiThread {
 
             if (cal.get(Calendar.HOUR_OF_DAY) < 15) {
-                dayMeals = mensaCurrentWeek.days[NotRetardedCalendar().getDayOfWeekIndex()].meals
+                dayMeals = mensaMenu.currentWeek.days[NotRetardedCalendar().getDayOfWeekIndex()].meals
                 mensaCardView.setDayHeading(resources.getString(R.string.today_date, formatter.format(cal.time)))
             } else {
-                dayMeals = mensaCurrentWeek.days[NotRetardedCalendar().getTomorrowWeekIndex()].meals
+                dayMeals = mensaMenu.currentWeek.days[NotRetardedCalendar().getTomorrowWeekIndex()].meals
                 cal.add(Calendar.DATE, 1)
                 mensaCardView.setDayHeading(resources.getString(R.string.tomorrow_date, formatter.format(cal.time)))
             }

app/src/main/java/org/mosad/seil0/projectlaogai/fragments/MensaFragment.kt

@@ -27,12 +27,14 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
+import com.afollestad.materialdialogs.MaterialDialog
+import com.google.android.material.floatingactionbutton.FloatingActionButton
 import kotlinx.android.synthetic.main.fragment_mensa.*
 import org.jetbrains.anko.doAsync
 import org.jetbrains.anko.uiThread
+import org.mosad.seil0.projectlaogai.R
 import org.mosad.seil0.projectlaogai.controller.CacheController
-import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.mensaCurrentWeek
+import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.mensaMenu
-import org.mosad.seil0.projectlaogai.controller.CacheController.Companion.mensaNextWeek
 import org.mosad.seil0.projectlaogai.controller.PreferencesController.Companion.cShowBuffet
 import org.mosad.seil0.projectlaogai.controller.TCoRAPIController
 import org.mosad.seil0.projectlaogai.hsoparser.MensaWeek
@@ -46,25 +48,43 @@ import org.mosad.seil0.projectlaogai.uicomponents.MealLinearLayout
  */
 class MensaFragment : Fragment() {
 
+    private lateinit var btnCardValue: FloatingActionButton
+
     override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
 
-        val view: View = inflater.inflate(org.mosad.seil0.projectlaogai.R.layout.fragment_mensa, container, false)
+        val view: View = inflater.inflate(R.layout.fragment_mensa, container, false)
+
+        btnCardValue = view.findViewById(R.id.btnCardValue)
 
         // init actions
-        refreshAction()
+        initActions()
 
         // add the current week (week starts on sunday)
         val dayCurrent =  if(NotRetardedCalendar().getDayOfWeekIndex() == 6) 0 else NotRetardedCalendar().getDayOfWeekIndex()
-        addWeek(mensaCurrentWeek, dayCurrent).get()
+        addWeek(mensaMenu.currentWeek, dayCurrent).get()
 
         // add the next week
-        addWeek(mensaNextWeek, 0)
+        addWeek(mensaMenu.nextWeek, 0)
 
         // TODO should we show a info if there is no more food this & next week?
+        // TODO hide the floating button if we are not on the top end of the scroll pane
 
         return view
     }
 
+    private fun initActions() {
+        refreshAction() // must be async
+
+        btnCardValue.setOnClickListener {
+            MaterialDialog(context!!)
+                .title(text = "Mensa-Karte")
+                .message(text = "das aktuelle Guthaben beträgt\n\n13,70€")
+                .show()
+        }
+
+
+    }
+
     /**
      * add all menus from dayStart to Friday for a given week
      * @param menusWeek menu of type MensaWeek you want to add
@@ -129,10 +149,10 @@ class MensaFragment : Fragment() {
 
             // add the refreshed menus
             val dayCurrent = if (NotRetardedCalendar().getDayOfWeekIndex() == 6) 0 else NotRetardedCalendar().getDayOfWeekIndex()
-            addWeek(mensaCurrentWeek, dayCurrent).get()
+            addWeek(mensaMenu.currentWeek, dayCurrent).get()
 
             // add the next week
-            addWeek(mensaNextWeek, 0)
+            addWeek(mensaMenu.nextWeek, 0)
 
             refreshLayout_Mensa.isRefreshing = false
         }

app/src/main/java/org/mosad/seil0/projectlaogai/hsoparser/DataTypes.kt

@@ -27,7 +27,8 @@ import java.util.*
 import kotlin.collections.ArrayList
 
 class DataTypes {
-    val times = arrayOf("8.00 - 9.30", "9.45 - 11.15" ,"11.35 - 13.05", "14.00 -15.30", "15.45 - 17.15", "17.30 - 19.00")
+    val times =
+        arrayOf("8.00 - 9.30", "9.45 - 11.15", "11.35 - 13.05", "14.00 -15.30", "15.45 - 17.15", "17.30 - 19.00")
 
     val primaryColors = intArrayOf(
         Color.parseColor("#E53935"),
@@ -69,7 +70,7 @@ class DataTypes {
         Color.parseColor("#FF9100"),
         Color.parseColor("#FF3D00"),
         Color.parseColor("#000000")
-        )
+    )
 
     init {
         // do something
@@ -85,7 +86,7 @@ class NotRetardedCalendar {
     private val calendar = Calendar.getInstance()!!
 
     fun getDayOfWeekIndex(): Int {
-        return when(calendar.get(Calendar.DAY_OF_WEEK)) {
+        return when (calendar.get(Calendar.DAY_OF_WEEK)) {
             Calendar.MONDAY -> 0
             Calendar.TUESDAY -> 1
             Calendar.WEDNESDAY -> 2
@@ -98,7 +99,7 @@ class NotRetardedCalendar {
     }
 
     fun getTomorrowWeekIndex(): Int {
-        return when(calendar.get(Calendar.DAY_OF_WEEK)) {
+        return when (calendar.get(Calendar.DAY_OF_WEEK)) {
             Calendar.MONDAY -> 1
             Calendar.TUESDAY -> 2
             Calendar.WEDNESDAY -> 3
@@ -111,16 +112,28 @@ class NotRetardedCalendar {
     }
 }
 
+// data classes for the course part
 data class Course(val courseLink: String, val courseName: String)
 
+// data classes for the Mensa part
 data class Meal(val day: String, val heading: String, val parts: ArrayList<String>, val additives: String)
 
 data class Meals(val meals: ArrayList<Meal>)
 
 data class MensaWeek(val days: Array<Meals> = Array(7) { Meals(ArrayList()) })
 
-data class Lesson(val lessonSubject: String, val lessonTeacher: String, val lessonRoom:String, val lessonRemark: String)
+data class MensaMeta(val updateTime: Long, val mensaName: String)
 
-data class TimetableDay( val timeslots: Array<ArrayList<Lesson>> = Array(6) { ArrayList<Lesson>()})
+data class MensaMenu(val meta: MensaMeta, val currentWeek: MensaWeek, val nextWeek: MensaWeek)
+
+// data classes for the timetable part
+data class Lesson(
+    val lessonSubject: String,
+    val lessonTeacher: String,
+    val lessonRoom: String,
+    val lessonRemark: String
+)
+
+data class TimetableDay(val timeslots: Array<ArrayList<Lesson>> = Array(6) { ArrayList<Lesson>() })
 
 data class TimetableWeek(val days: Array<TimetableDay> = Array(6) { TimetableDay() })

app/src/main/res/layout/fragment_mensa.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
-             xmlns:tools="http://schemas.android.com/tools"
+             xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              tools:context=".fragments.MensaFragment">
@@ -22,6 +22,13 @@
                     android:id="@+id/linLayout_Mensa"/>
         </ScrollView>
     </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+    <com.google.android.material.floatingactionbutton.FloatingActionButton
+            android:src="@drawable/ic_local_dining_black_24dp"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:clickable="true" android:id="@+id/btnCardValue" android:visibility="visible"
+            android:layout_gravity="bottom|center|end" android:elevation="7dp" android:focusable="true"
+            android:layout_marginEnd="7dp" android:layout_marginBottom="7dp"/>
 
 
 </FrameLayout>

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.0'
+        classpath 'com.android.tools.build:gradle:3.4.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong