add MediasFiltersViewModel

app/src/main/java/com/example/tdsaeandroid/MediasFiltersActivity.kt

@@ -13,9 +13,13 @@ import android.widget.Button
 import android.widget.DatePicker
 import android.widget.RatingBar
 import androidx.activity.enableEdgeToEdge
+import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.fragment.app.DialogFragment
 import androidx.lifecycle.lifecycleScope
+import com.example.tdsaeandroid.component.DatePickerFragment
+import com.example.tdsaeandroid.component.DatePickerListener
+import com.example.tdsaeandroid.component.DateType
 import kotlinx.coroutines.launch
 import com.example.tdsaeandroid.component.yearPickerDialog
 import com.example.tdsaeandroid.dao.Dao
@@ -28,6 +32,8 @@ import com.example.tdsaeandroid.dao.VotesFilter
 import com.example.tdsaeandroid.dao.YearFilter
 import com.example.tdsaeandroid.dao.formatDate
 import com.example.tdsaeandroid.model.media.Genre
+import com.example.tdsaeandroid.viewmodel.MediasFiltersViewModel
+import com.example.tdsaeandroid.viewmodel.ResultsViewModel
 import com.google.android.material.chip.Chip
 import com.google.android.material.chip.ChipGroup
 import com.google.android.material.switchmaterial.SwitchMaterial
@@ -47,13 +53,13 @@ class MediasFiltersActivity : AppCompatActivity(), DatePickerListener {
     private lateinit var releaseAfter: Button
     private lateinit var ratingMin: RatingBar
     private lateinit var includeAdult: SwitchMaterial
-    private val dao = Dao.instance
-    private lateinit var genres: Array<Genre>
     private var releaseDateBefore: Date? = null
     private var releaseDateAfter: Date? = null
 
     private lateinit var type: ActivityType
 
+    private val mediasFiltersViewModel: MediasFiltersViewModel by viewModels()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
@@ -95,6 +101,7 @@ class MediasFiltersActivity : AppCompatActivity(), DatePickerListener {
 
             if (ratingMin.progress != 0){
                 fc.addFilter(VotesFilter(ratingMin.progress))
+                fc.addFilter(VotesFilter(ratingMin.progress))
             }
 
             if (releaseDateBefore != null){
@@ -138,14 +145,19 @@ class MediasFiltersActivity : AppCompatActivity(), DatePickerListener {
                 val chip: Chip = LayoutInflater.from(this@MediasFiltersActivity).inflate(R.layout.chip_layout, null) as Chip
                 chip.text = it.name
                 chip.id = it.id
+                chip.isChecked = mediasFiltersViewModel.isChecked(it.id)
                 chipGroup.addView(chip)
             }
         }
+
+        chipGroup.setOnCheckedStateChangeListener { _, checkedIds ->
+            mediasFiltersViewModel.onChecked(checkedIds)
+        }
     }
 
     private suspend fun loadGenres(): Array<Genre> {
         return withContext(Dispatchers.IO) {
-            dao.getGenres().toTypedArray()
+            mediasFiltersViewModel.load()
         }
     }
 
@@ -170,58 +182,4 @@ class MediasFiltersActivity : AppCompatActivity(), DatePickerListener {
     }
 }
 
-interface DatePickerListener {
-    fun onDateSetBefore(date: Date)
-    fun onDateSetAfter(date: Date)
-    fun onDateCancelBefore()
-    fun onDateCancelAfter()
-}
-
-class DatePickerFragment(val type: DateType) : DialogFragment(), DatePickerDialog.OnDateSetListener {
-
-    private lateinit var listener: DatePickerListener
-
-    override fun onAttach(context: Context) {
-        super.onAttach(context)
-        if (context is DatePickerListener) {
-            listener = context
-        } else {
-            throw RuntimeException("$context must implement DatePickerListener")
-        }
-    }
-
-    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
-        // Use the current date as the default date in the picker.
-        val c = Calendar.getInstance()
-        val year = c.get(Calendar.YEAR)
-        val month = c.get(Calendar.MONTH)
-        val day = c.get(Calendar.DAY_OF_MONTH)
-
-        // Create a new instance of DatePickerDialog and return it.
-        return DatePickerDialog(requireContext(), this, year, month, day)
-
-    }
-
-    override fun onDateSet(view: DatePicker, year: Int, month: Int, day: Int) {
-        val date = java.util.Calendar.Builder().setDate(year, month, day).build().time
-        when(type){
-            DateType.BEFORE -> listener.onDateSetBefore(date)
-            DateType.AFTER -> listener.onDateSetAfter(date)
-        }
-
-    }
-
-    override fun onCancel(dialog: DialogInterface) {
-        when(type){
-            DateType.BEFORE -> listener.onDateCancelBefore()
-            DateType.AFTER -> listener.onDateCancelAfter()
-        }
-        super.onCancel(dialog)
-    }
-}
-
-enum class DateType{
-    BEFORE,
-    AFTER
-}
 

app/src/main/java/com/example/tdsaeandroid/component/datePicker.kt

+package com.example.tdsaeandroid.component
+
+import android.app.DatePickerDialog
+import android.app.Dialog
+import android.content.Context
+import android.content.DialogInterface
+import android.icu.util.Calendar
+import android.os.Bundle
+import android.widget.DatePicker
+import androidx.fragment.app.DialogFragment
+import java.util.Date
+
+interface DatePickerListener {
+    fun onDateSetBefore(date: Date)
+    fun onDateSetAfter(date: Date)
+    fun onDateCancelBefore()
+    fun onDateCancelAfter()
+}
+
+class DatePickerFragment(val type: DateType) : DialogFragment(), DatePickerDialog.OnDateSetListener {
+
+    private lateinit var listener: DatePickerListener
+
+    override fun onAttach(context: Context) {
+        super.onAttach(context)
+        if (context is DatePickerListener) {
+            listener = context
+        } else {
+            throw RuntimeException("$context must implement DatePickerListener")
+        }
+    }
+
+    override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
+        // Use the current date as the default date in the picker.
+        val c = Calendar.getInstance()
+        val year = c.get(Calendar.YEAR)
+        val month = c.get(Calendar.MONTH)
+        val day = c.get(Calendar.DAY_OF_MONTH)
+
+        // Create a new instance of DatePickerDialog and return it.
+        return DatePickerDialog(requireContext(), this, year, month, day)
+
+    }
+
+    override fun onDateSet(view: DatePicker, year: Int, month: Int, day: Int) {
+        val date = java.util.Calendar.Builder().setDate(year, month, day).build().time
+        when(type){
+            DateType.BEFORE -> listener.onDateSetBefore(date)
+            DateType.AFTER -> listener.onDateSetAfter(date)
+        }
+
+    }
+
+    override fun onCancel(dialog: DialogInterface) {
+        when(type){
+            DateType.BEFORE -> listener.onDateCancelBefore()
+            DateType.AFTER -> listener.onDateCancelAfter()
+        }
+        super.onCancel(dialog)
+    }
+}
+
+enum class DateType{
+    BEFORE,
+    AFTER
+}

app/src/main/java/com/example/tdsaeandroid/viewmodel/MediasFiltersViewModel.kt

+package com.example.tdsaeandroid.viewmodel
+
+import androidx.lifecycle.ViewModel
+import com.example.tdsaeandroid.dao.Dao
+import com.example.tdsaeandroid.model.media.Genre
+
+class MediasFiltersViewModel : ViewModel() {
+    private var allGenres: Array<Genre>? = null
+
+    private var genresSelected: List<Int>? = null
+
+    private val dao = Dao.instance
+
+    fun load(): Array<Genre> {
+        if (allGenres == null) {
+            allGenres = dao.getGenres().toTypedArray()
+        }
+        return allGenres!!
+    }
+
+    fun onChecked(newGenresSelected: List<Int>) {
+        genresSelected = newGenresSelected
+    }
+
+    fun isChecked(id: Int): Boolean {
+        return genresSelected?.contains(id) ?: false
+    }
+}
\ No newline at end of file