Implemented chips for selecting dietary preferences

2023-04-18 10:25:45 +02:00
parent 56cdc4c5ee
commit c385da4287
11 changed files with 299 additions and 24 deletions
@@ -41,6 +41,24 @@ interface EventDAO {
    )
    val allOffers: LiveData<List<CanteenOffer>>

+    @Query(
+        "SELECT * FROM offer_item " +
+                "JOIN offer_category ON offer_item.categoryId = offer_category.id " +
+                "JOIN offer_canteen ON offer_category.canteenId = offer_canteen.id " +
+                "JOIN offer_date ON offer_category.dateId = offer_date.id " +
+                "WHERE isFair = :isFair AND isFish = :isFish AND isPoultry = :isPoultry " +
+                "AND isLamb = :isLamb AND isVital = :isVital AND isBeef = :isBeef " +
+                "AND isPork = :isPork AND isVegan = :isVegan AND isVegetarian = :isVegetarian " +
+                "AND isGame = :isGame "
+    )
+    fun getOffersByPreference(
+        isFair: Boolean, isFish: Boolean, isPoultry: Boolean, isLamb: Boolean, isVital: Boolean,
+        isBeef: Boolean, isPork: Boolean, isVegan: Boolean, isVegetarian: Boolean, isGame: Boolean
+    ): LiveData<List<CanteenOffer>>
+
+    @get:Query("SELECT id FROM offer_date")
+    val updateObserver: LiveData<List<Int>>
+
    @Query("DELETE FROM offer_date")
    fun nukeOfferDates()

@@ -2,11 +2,13 @@ package com.denizk0461.studip.db

 import android.app.Application
 import androidx.lifecycle.LiveData
+import androidx.preference.PreferenceManager
 import com.denizk0461.studip.model.*

-class EventRepository(app: Application) {
+class EventRepository(private val app: Application) {

    private val dao: EventDAO = EventDatabase.getInstance(app.applicationContext).dao()
+    private val prefs = PreferenceManager.getDefaultSharedPreferences(app)

    val allEvents: LiveData<List<StudIPEvent>> = dao.allEvents

@@ -16,6 +18,65 @@ class EventRepository(app: Application) {

    val allOffers: LiveData<List<CanteenOffer>> = dao.allOffers

+    // is this better than List.filter?
+    fun getOffersByPreference(prefs: DietaryPrefObject = getDietaryPrefs()): LiveData<List<CanteenOffer>> {
+        return if (isPreferenceSet()) {
+            dao.getOffersByPreference(
+                isFair = prefs.isFair,
+                isFish = prefs.isFish,
+                isPoultry = prefs.isPoultry,
+                isLamb = prefs.isLamb,
+                isVital = prefs.isVital,
+                isBeef = prefs.isBeef,
+                isPork = prefs.isPork,
+                isVegan = prefs.isVegan,
+                isVegetarian = prefs.isVegetarian,
+                isGame = prefs.isGame,
+            )
+        } else {
+            dao.allOffers
+        }
+    }
+
+
+    private fun getDietaryPrefs(): DietaryPrefObject {
+        return DietaryPrefObject(
+            isFair = prefs.getBoolean(DietaryPreferences.FAIR.value, false),
+            isFish = prefs.getBoolean(DietaryPreferences.FISH.value, false),
+            isPoultry = prefs.getBoolean(DietaryPreferences.POULTRY.value, false),
+            isLamb = prefs.getBoolean(DietaryPreferences.LAMB.value, false),
+            isVital = prefs.getBoolean(DietaryPreferences.VITAL.value, false),
+            isBeef = prefs.getBoolean(DietaryPreferences.BEEF.value, false),
+            isPork = prefs.getBoolean(DietaryPreferences.PORK.value, false),
+            isVegan = prefs.getBoolean(DietaryPreferences.VEGAN.value, false),
+            isVegetarian = prefs.getBoolean(DietaryPreferences.VEGETARIAN.value, false),
+            isGame = prefs.getBoolean(DietaryPreferences.GAME.value, false),
+        )
+    }
+
+    private fun isPreferenceSet(): Boolean {
+        getDietaryPrefs().also { p ->
+            if (p.isFair) return true
+            if (p.isFish) return true
+            if (p.isPoultry) return true
+            if (p.isLamb) return true
+            if (p.isVital) return true
+            if (p.isBeef) return true
+            if (p.isPork) return true
+            if (p.isVegan) return true
+            if (p.isVegetarian) return true
+            if (p.isGame) return true
+        }
+        return false
+    }
+
+    fun setPreference(pref: DietaryPreferences, newValue: Boolean) {
+        prefs.edit().putBoolean(pref.value, newValue).apply()
+    }
+
+    fun getPreference(pref: DietaryPreferences): Boolean =
+        prefs.getBoolean(pref.value, false)
+
 //    fun insertOffers(offers: List<CanteenOffer>) { dao.insertOffers(offers) }
    fun nukeOffers() {
        dao.nukeOfferItems()