user's favorites

app/build.gradle

@@ -118,6 +118,9 @@ dependencies {
 
     // intro tutorial
     implementation 'com.github.AppIntro:AppIntro:5.1.0'
+
+    // fav button
+    implementation 'com.github.ivbaranov:materialfavoritebutton:0.1.5'
 }
 
 // ktlint

app/src/main/java/com/esp/localjobs/adapters/JobItem.kt

@@ -13,6 +13,8 @@ import com.esp.localjobs.data.repository.userFirebaseRepository
 import com.esp.localjobs.databinding.ItemJobBinding
 import com.esp.localjobs.fragments.JobDetailsFragment
 import com.esp.localjobs.fragments.JobsFragmentDirections
+import com.esp.localjobs.utils.IFavoritesManager
+import com.esp.localjobs.utils.favoritesManager
 import com.xwray.groupie.databinding.BindableItem
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.GlobalScope
@@ -22,6 +24,10 @@ import kotlinx.coroutines.launch
 @InternalCoroutinesApi
 class JobItem(val job: Job) : BindableItem<ItemJobBinding>() {
 
+    companion object {
+        private val favManager: IFavoritesManager = favoritesManager
+    }
+
     override fun getId() = job.uid.hashCode().toLong()
 
     @InternalCoroutinesApi
@@ -35,6 +41,19 @@ class JobItem(val job: Job) : BindableItem<ItemJobBinding>() {
             setAuthor(author)
         }
 
+        GlobalScope.launch(Dispatchers.IO) {
+            val favorites = favManager.get()
+            if (favorites.contains([email protected])) {
+                favToggle.isFavorite = true
+            }
+            favToggle.setOnFavoriteChangeListener { _, isChecked ->
+                if (!isChecked)
+                    favManager.remove([email protected])
+                else
+                    favManager.add([email protected])
+            }
+        }
+
         [email protected]()?.let {
             Glide.with(cardView.context).load(it).placeholder(R.drawable.placeholder).into(imageView)
         } ?: Glide.with(cardView.context).load("https://picsum.photos/400").placeholder(R.drawable.placeholder).into(

app/src/main/java/com/esp/localjobs/data/models/User.kt

@@ -1,14 +1,17 @@
 package com.esp.localjobs.data.models
 
+import android.os.Parcelable
 import com.google.firebase.auth.FirebaseUser
+import kotlinx.android.parcel.Parcelize
 
+@Parcelize
 data class User(
     val uid: String = "",
     val displayName: String = "",
     val phoneNumber: String = "",
     val photoUrl: String = "",
     val mail: String = ""
-)
+) : Parcelable
 
 fun FirebaseUser.toUser() = User(
     uid = uid,

app/src/main/java/com/esp/localjobs/fragments/JobsFragment.kt

@@ -8,36 +8,51 @@ import android.view.MenuInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.SearchView
+import androidx.core.view.forEach
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.activityViewModels
 import androidx.lifecycle.Observer
 import androidx.navigation.fragment.FragmentNavigatorExtras
 import androidx.navigation.fragment.findNavController
+import androidx.navigation.fragment.navArgs
 import androidx.recyclerview.widget.RecyclerView
 import com.esp.localjobs.R
 import com.esp.localjobs.adapters.JobItem
 import com.esp.localjobs.data.models.Location
+import com.esp.localjobs.data.models.User
 import com.esp.localjobs.data.repository.JobsRepository
 import com.esp.localjobs.fragments.FiltersFragment.Companion.FILTER_FRAGMENT_TAG
 import com.esp.localjobs.fragments.map.LocationPickerFragment
+import com.esp.localjobs.utils.favoritesManager
 import com.esp.localjobs.viewModels.FilterViewModel
 import com.esp.localjobs.viewModels.JobsViewModel
 import com.xwray.groupie.GroupAdapter
 import com.xwray.groupie.ViewHolder
 import kotlinx.android.synthetic.main.fragment_filter_status.*
 import kotlinx.android.synthetic.main.fragment_jobs.*
 import kotlinx.android.synthetic.main.fragment_jobs.view.*
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.InternalCoroutinesApi
+import kotlinx.coroutines.async
+import kotlinx.coroutines.launch
+import kotlin.coroutines.CoroutineContext
 
 /**
- * Fragment used to display a list of jobs
+ * Fragment used to display a list of jobs. If arguments include an User then the fragment
+ * shows the user's jobs/proposals
  */
 @InternalCoroutinesApi
-class JobsFragment : Fragment(), LocationPickerFragment.OnLocationPickedListener {
+class JobsFragment : Fragment(), LocationPickerFragment.OnLocationPickedListener, CoroutineScope {
+    private lateinit var mJob: kotlinx.coroutines.Job
+    override val coroutineContext: CoroutineContext
+        get() = mJob + Dispatchers.Main
 
     private val jobsViewModel: JobsViewModel by activityViewModels()
     private val filterViewModel: FilterViewModel by activityViewModels()
 
+    private val args: JobsFragmentArgs by navArgs()
+
     val adapter = GroupAdapter<ViewHolder>()
 
     override fun onCreateView(
@@ -56,7 +71,17 @@ class JobsFragment : Fragment(), LocationPickerFragment.OnLocationPickedListener
         setupAdapter()
 
         observeChangesInJobList()
-        observeFilters()
+
+        when {
+            args.user != null -> setupUserJobsView(args.user as User)
+            args.showFavorites -> showFavorites()
+            else -> observeFilters()
+        }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        mJob = kotlinx.coroutines.Job()
     }
 
     private fun setupUI(view: View) = with(view) {
@@ -137,6 +162,11 @@ class JobsFragment : Fragment(), LocationPickerFragment.OnLocationPickedListener
     }
 
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {
+        // hide menu actions if we are showing some user's jobs/proposals or favorites
+        if (args.user != null || args.showFavorites) {
+            menu.forEach { it.isVisible = false }
+            return
+        }
         inflater.inflate(R.menu.menu_search, menu)
         val searchView = menu.findItem(R.id.action_search_item).actionView as SearchView
         setupSearchView(searchView)
@@ -181,6 +211,55 @@ class JobsFragment : Fragment(), LocationPickerFragment.OnLocationPickedListener
         }
     }
 
+    private fun setupUserJobsView(user: User) {
+        activity?.title = getString(R.string.user_jobs_title, user.displayName)
+        val fromJobs = filterViewModel.filteringJobs ?: true
+
+        val toCheck = if (fromJobs)
+            R.id.radio_job
+        else
+            R.id.radio_proposal
+
+        jobs_type_radio_group.check(toCheck)
+        jobs_type_radio_group.setOnCheckedChangeListener { _, checkedId ->
+            if (checkedId == R.id.radio_job) {
+                loadJobs(JobsRepository.JobFilter(
+                    uid = user.uid,
+                    filteringJobs = true
+                ))
+            } else {
+                loadJobs(JobsRepository.JobFilter(
+                    uid = user.uid,
+                    filteringJobs = false
+                ))
+            }
+        }
+
+        fabAdd.visibility = View.GONE
+        active_filters.visibility = View.GONE
+        jobs_type_radio_group.visibility = View.VISIBLE
+
+        loadJobs(JobsRepository.JobFilter(
+            uid = user.uid,
+            filteringJobs = fromJobs
+        ))
+    }
+
+    private fun showFavorites() = launch {
+        activity?.title = getString(R.string.favorites_title)
+        fabAdd.visibility = View.GONE
+        active_filters.visibility = View.GONE
+
+        val deferredJobs = async(Dispatchers.IO) { favoritesManager.get() }
+        adapter.clear()
+        val jobs = deferredJobs.await()
+        if (jobs.isEmpty()) {
+            no_jobs_title.text = getString(R.string.empty_favorites_title)
+            no_jobs_message.text = ""
+        } else
+            adapter.update(jobs.map { JobItem(it) })
+    }
+
     override fun onLocationPicked(location: Location, distance: Int?) {
         Log.d(TAG, "location: $location")
         filterViewModel.setLocation(location)

app/src/main/java/com/esp/localjobs/fragments/UserProfileFragment.kt

@@ -13,6 +13,7 @@ import androidx.fragment.app.activityViewModels
 import androidx.navigation.fragment.findNavController
 import androidx.navigation.fragment.navArgs
 import com.esp.localjobs.R
+import com.esp.localjobs.data.models.User
 import com.esp.localjobs.data.repository.userFirebaseRepository
 import com.esp.localjobs.databinding.FragmentUserProfileBinding
 import com.esp.localjobs.viewModels.LoginViewModel
@@ -60,22 +61,27 @@ class UserProfileFragment : Fragment(), CoroutineScope {
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        val userId = args.userID
 
-        if (userId == null)
-            setupCurrentUserProfile()
-        else
-            setupUserDetails(userId)
+        args.userID?.let {
+            setupUserDetails(it)
+        } ?: setupCurrentUserProfile()
     }
 
     private fun setupCurrentUserProfile() {
-        name.text = getString(R.string.not_logged_in)
-        logout.visibility = View.GONE
-        login.visibility = View.VISIBLE
+        val user = loginViewModel.getCurrentUser()
+
+        if (user == null) {
+            name.text = getString(R.string.not_logged_in)
+            logout.visibility = View.GONE
+            login.visibility = View.VISIBLE
+        } else {
+            binding.user = user
+            setupUserJobsButton(user)
+            setupFavoritesButton()
 
-        loginViewModel.getCurrentUser()?.let {
-            binding.user = it
             logout.visibility = View.VISIBLE
+            favorites_button.visibility = View.VISIBLE
+
             login.visibility = View.GONE
         }
 
@@ -93,7 +99,30 @@ class UserProfileFragment : Fragment(), CoroutineScope {
         if (!isActive)
             return@launch
 
-        binding.user = user
+        user?.let {
+            binding.user = it
+            setupUserJobsButton(it)
+        }
+    }
+
+    private fun setupUserJobsButton(user: User) {
+        user_jobs.visibility = View.VISIBLE
+        user_jobs.setOnClickListener {
+            val action =
+                UserProfileFragmentDirections.actionDestinationUserProfileToDestinationJobs(user)
+            findNavController().navigate(action)
+        }
+    }
+
+    private fun setupFavoritesButton() {
+        favorites_button.setOnClickListener {
+            val action =
+                UserProfileFragmentDirections.actionDestinationUserProfileToDestinationJobs(
+                    null,
+                    true
+                )
+            findNavController().navigate(action)
+        }
     }
 
     override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {

app/src/main/java/com/esp/localjobs/utils/IFavoritesManager.kt

@@ -0,0 +1,9 @@
+package com.esp.localjobs.utils
+
+import com.esp.localjobs.data.models.Job
+
+interface IFavoritesManager {
+    fun add(job: Job)
+    fun remove(job: Job)
+    suspend fun get(): Set<Job>
+}

app/src/main/java/com/esp/localjobs/utils/favoritesManager.kt

@@ -0,0 +1,66 @@
+package com.esp.localjobs.utils
+
+import android.content.Context
+import android.content.SharedPreferences
+import android.util.Log
+import androidx.core.content.edit
+import com.esp.localjobs.LocalJobsApplication
+import com.esp.localjobs.data.base.BaseRepository
+import com.esp.localjobs.data.models.Job
+import com.esp.localjobs.data.repository.JobsRepository
+
+object favoritesManager : IFavoritesManager {
+    private const val FAV_KEY = "favourites_ids"
+
+    private val loader: BaseRepository<Job> by lazy { JobsRepository() }
+    private val sharedPreferences: SharedPreferences by lazy {
+        LocalJobsApplication.applicationContext()
+            .getSharedPreferences("favorites", Context.MODE_PRIVATE)
+    }
+
+    private var favorites: MutableSet<Job>? = null
+
+    override fun add(job: Job) {
+        val favKeys = sharedPreferences.getStringSet(FAV_KEY, mutableSetOf<String>())
+            ?: mutableSetOf<String>()
+        favKeys.add(job.id)
+        Log.d("favorites", "adding: ${job.id}")
+        sharedPreferences.edit(commit = true) {
+            // stringSet is bugged so i must do this :/
+            remove(FAV_KEY)
+            apply()
+            putStringSet(FAV_KEY, favKeys)
+            apply()
+        }
+        favorites?.add(job)
+    }
+
+    override fun remove(job: Job) {
+        val favKeys = sharedPreferences.getStringSet(FAV_KEY, mutableSetOf<String>()) ?: return
+        favKeys.remove(job.id)
+        Log.d("favorites", "removing: ${job.id}")
+        sharedPreferences.edit(commit = true) {
+            // stringSet is bugged so i must do this :/
+            remove(FAV_KEY)
+            apply()
+            putStringSet(FAV_KEY, favKeys)
+            apply()
+        }
+        favorites?.remove(job)
+    }
+
+    override suspend fun get(): Set<Job> {
+        if (favorites == null) {
+            favorites = load()
+        }
+        return (favorites as MutableSet<Job>).toSet()
+    }
+
+    private suspend fun load(): MutableSet<Job> {
+        val favKeys = sharedPreferences.getStringSet(FAV_KEY, mutableSetOf<String>())
+        Log.d("favorites", "loading: $favKeys")
+        val favList = mutableSetOf<Job>()
+        favKeys?.forEach { key -> loader.get(key)?.let { favList.add(it) } }
+        return favList
+    }
+}

app/src/main/java/com/esp/localjobs/viewModels/FilterViewModel.kt

@@ -39,6 +39,9 @@ class FilterViewModel : ViewModel() {
     val query: String?
         get() = activeFilters.value?.query
 
+    val filteringJobs: Boolean?
+        get() = activeFilters.value?.filteringJobs
+
     init {
         val context = LocalJobsApplication.applicationContext()
         val filter = retrieveLastUsedFilter(context)