Begin implementing username autocomplete

Habitica/res/layout/autocomplete_username.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="vertical" android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_marginTop="@dimen/spacing_medium"
+    android:layout_marginBottom="@dimen/spacing_medium"
+    android:layout_marginStart="@dimen/spacing_large"
+    android:layout_marginEnd="@dimen/spacing_large">
+<com.habitrpg.android.habitica.ui.views.social.UsernameLabel
+    android:id="@+id/display_name_view"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content" />
+    <TextView
+        android:id="@+id/username_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+</LinearLayout>

Habitica/res/layout/tavern_chat_new_entry_item.xml

@@ -34,7 +34,7 @@
                 app:hintEnabled="false"
                 android:layout_marginBottom="@dimen/spacing_medium"
                 android:layout_marginTop="@dimen/spacing_medium">
-                <net.pherth.android.emoji_library.EmojiEditText
+                <MultiAutoCompleteTextView
                     android:id="@+id/chatEditText"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"

Habitica/src/main/java/com/habitrpg/android/habitica/api/ApiService.java

@@ -27,6 +27,7 @@ import com.habitrpg.android.habitica.models.shops.Shop;
 import com.habitrpg.android.habitica.models.shops.ShopItem;
 import com.habitrpg.android.habitica.models.social.Challenge;
 import com.habitrpg.android.habitica.models.social.ChatMessage;
+import com.habitrpg.android.habitica.models.social.FindUsernameResult;
 import com.habitrpg.android.habitica.models.social.Group;
 import com.habitrpg.android.habitica.models.tasks.Task;
 import com.habitrpg.android.habitica.models.tasks.TaskList;
@@ -287,6 +288,9 @@ public interface ApiService {
     @POST("members/send-private-message")
     Flowable<HabitResponse<PostChatMessageResult>> postPrivateMessage(@Body Map<String, String> messageDetails);
 
+    @GET("members/find/{username}")
+    Flowable<HabitResponse<List<FindUsernameResult>>> findUsernames(@Path("username") String username, @Query("context") String context, @Query("id") String id);
+
     @GET("shops/{identifier}")
     Flowable<HabitResponse<Shop>> retrieveShopInventory(@Path("identifier") String identifier);
     @GET("shops/market-gear")

Habitica/src/main/java/com/habitrpg/android/habitica/api/GSonFactoryCreator.java

@@ -24,6 +24,7 @@ import com.habitrpg.android.habitica.models.members.Member;
 import com.habitrpg.android.habitica.models.responses.FeedResponse;
 import com.habitrpg.android.habitica.models.social.Challenge;
 import com.habitrpg.android.habitica.models.social.ChatMessage;
+import com.habitrpg.android.habitica.models.social.FindUsernameResult;
 import com.habitrpg.android.habitica.models.social.Group;
 import com.habitrpg.android.habitica.models.tasks.Task;
 import com.habitrpg.android.habitica.models.tasks.TaskList;
@@ -41,6 +42,7 @@ import com.habitrpg.android.habitica.utils.EggListDeserializer;
 import com.habitrpg.android.habitica.utils.EquipmentListDeserializer;
 import com.habitrpg.android.habitica.utils.FAQArticleListDeserilializer;
 import com.habitrpg.android.habitica.utils.FeedResponseDeserializer;
+import com.habitrpg.android.habitica.utils.FindUsernameResultDeserializer;
 import com.habitrpg.android.habitica.utils.FoodListDeserializer;
 import com.habitrpg.android.habitica.utils.GroupSerialization;
 import com.habitrpg.android.habitica.utils.HatchingPotionListDeserializer;
@@ -130,6 +132,7 @@ public class GSonFactoryCreator {
                 .registerTypeAdapter(Quest.class, new QuestDeserializer())
                 .registerTypeAdapter(Member.class, new MemberSerialization())
                 .registerTypeAdapter(WorldState.class, new WorldStateSerialization())
+                .registerTypeAdapter(FindUsernameResult.class, new FindUsernameResultDeserializer())
                 //.registerTypeAdapter(Task.class, new TaskDeserializer())
                 .setDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS'Z'")
                 .create();

Habitica/src/main/java/com/habitrpg/android/habitica/components/AppComponent.java

@@ -92,6 +92,7 @@ import com.habitrpg.android.habitica.ui.fragments.social.party.PartyMemberListFr
 import com.habitrpg.android.habitica.ui.fragments.tasks.TaskRecyclerViewFragment;
 import com.habitrpg.android.habitica.ui.fragments.tasks.TasksFragment;
 import com.habitrpg.android.habitica.ui.viewmodels.GroupViewModel;
+import com.habitrpg.android.habitica.ui.views.social.ChatBarView;
 import com.habitrpg.android.habitica.ui.views.stats.BulkAllocateStatsDialog;
 import com.habitrpg.android.habitica.ui.views.shops.PurchaseDialog;
 import com.habitrpg.android.habitica.ui.views.tasks.TaskFilterDialog;
@@ -308,4 +309,6 @@ public interface AppComponent {
     void inject(@NotNull GiftIAPActivity giftIAPActivity);
 
     void inject(@NotNull AboutFragment aboutFragment);
+
+    void inject(@NotNull ChatBarView chatBarView);
 }

Habitica/src/main/java/com/habitrpg/android/habitica/data/ApiClient.kt

@@ -11,6 +11,7 @@ import com.habitrpg.android.habitica.models.shops.Shop
 import com.habitrpg.android.habitica.models.shops.ShopItem
 import com.habitrpg.android.habitica.models.social.Challenge
 import com.habitrpg.android.habitica.models.social.ChatMessage
+import com.habitrpg.android.habitica.models.social.FindUsernameResult
 import com.habitrpg.android.habitica.models.social.Group
 import com.habitrpg.android.habitica.models.tasks.Task
 import com.habitrpg.android.habitica.models.tasks.TaskList
@@ -248,4 +249,5 @@ interface ApiClient {
     fun retrieveMarketGear(): Flowable<Shop>
     fun verifyUsername(username: String): Flowable<VerifyUsernameResponse>
     fun updateServerUrl(newAddress: String?)
+    fun findUsernames(username: String, context: String?, id: String?): Flowable<List<FindUsernameResult>>
 }

Habitica/src/main/java/com/habitrpg/android/habitica/data/SocialRepository.kt

@@ -4,10 +4,7 @@ import com.habitrpg.android.habitica.models.AchievementResult
 import com.habitrpg.android.habitica.models.inventory.Quest
 import com.habitrpg.android.habitica.models.members.Member
 import com.habitrpg.android.habitica.models.responses.PostChatMessageResult
-import com.habitrpg.android.habitica.models.social.Challenge
-import com.habitrpg.android.habitica.models.social.ChatMessage
-import com.habitrpg.android.habitica.models.social.Group
-import com.habitrpg.android.habitica.models.social.GroupMembership
+import com.habitrpg.android.habitica.models.social.*
 import com.habitrpg.android.habitica.models.user.User
 import io.reactivex.Flowable
 import io.reactivex.Single
@@ -60,6 +57,8 @@ interface SocialRepository : BaseRepository {
     fun getMember(userId: String?): Flowable<Member>
     fun getMemberWithUsername(username: String?): Flowable<Member>
 
+    fun findUsernames(username: String, context: String? = null, id: String? = null): Flowable<List<FindUsernameResult>>
+
     fun markPrivateMessagesRead(user: User?): Flowable<Void>
 
     fun acceptQuest(user: User?, partyId: String): Flowable<Void>

Habitica/src/main/java/com/habitrpg/android/habitica/data/implementation/ApiClientImpl.kt

@@ -28,6 +28,7 @@ import com.habitrpg.android.habitica.models.shops.Shop
 import com.habitrpg.android.habitica.models.shops.ShopItem
 import com.habitrpg.android.habitica.models.social.Challenge
 import com.habitrpg.android.habitica.models.social.ChatMessage
+import com.habitrpg.android.habitica.models.social.FindUsernameResult
 import com.habitrpg.android.habitica.models.social.Group
 import com.habitrpg.android.habitica.models.tasks.Task
 import com.habitrpg.android.habitica.models.tasks.TaskList
@@ -583,6 +584,10 @@ class ApiClientImpl//private OnHabitsAPIResult mResultListener;
         return apiService.getMemberAchievements(memberId).compose(configureApiCallObserver())
     }
 
+    override fun findUsernames(username: String, context: String?, id: String?): Flowable<List<FindUsernameResult>> {
+        return apiService.findUsernames(username, context, id).compose(configureApiCallObserver())
+    }
+
     override fun postPrivateMessage(messageDetails: Map<String, String>): Flowable<PostChatMessageResult> {
         return apiService.postPrivateMessage(messageDetails).compose(configureApiCallObserver())
     }

Habitica/src/main/java/com/habitrpg/android/habitica/data/implementation/SocialRepositoryImpl.kt

@@ -9,10 +9,7 @@ import com.habitrpg.android.habitica.models.AchievementResult
 import com.habitrpg.android.habitica.models.inventory.Quest
 import com.habitrpg.android.habitica.models.members.Member
 import com.habitrpg.android.habitica.models.responses.PostChatMessageResult
-import com.habitrpg.android.habitica.models.social.Challenge
-import com.habitrpg.android.habitica.models.social.ChatMessage
-import com.habitrpg.android.habitica.models.social.Group
-import com.habitrpg.android.habitica.models.social.GroupMembership
+import com.habitrpg.android.habitica.models.social.*
 import com.habitrpg.android.habitica.models.user.User
 import io.reactivex.Flowable
 import io.reactivex.Single
@@ -21,6 +18,7 @@ import io.reactivex.functions.Consumer
 import io.realm.RealmResults
 
 class SocialRepositoryImpl(localRepository: SocialLocalRepository, apiClient: ApiClient, userID: String) : BaseRepositoryImpl<SocialLocalRepository>(localRepository, apiClient, userID), SocialRepository {
+
     override fun getGroupMembership(id: String): Flowable<GroupMembership> {
         return localRepository.getGroupMembership(userID, id)
     }
@@ -208,6 +206,10 @@ class SocialRepositoryImpl(localRepository: SocialLocalRepository, apiClient: Ap
         } else apiClient.getMemberWithUsername(username)
     }
 
+    override fun findUsernames(username: String, context: String?, id: String?): Flowable<List<FindUsernameResult>> {
+        return apiClient.findUsernames(username, context, id)
+    }
+
     override fun markPrivateMessagesRead(user: User?): Flowable<Void> {
         return apiClient.markPrivateMessagesRead()
                 .doOnNext { _ ->

Habitica/src/main/java/com/habitrpg/android/habitica/models/social/FindUsernameResult.kt

@@ -0,0 +1,24 @@
+package com.habitrpg.android.habitica.models.social
+
+import com.google.gson.annotations.SerializedName
+import com.habitrpg.android.habitica.models.user.Authentication
+import com.habitrpg.android.habitica.models.user.ContributorInfo
+import io.realm.annotations.PrimaryKey
+
+class FindUsernameResult {
+
+    @SerializedName("_id")
+    var id: String? = null
+
+    var contributor: ContributorInfo? = null
+    var authentication: Authentication? = null
+
+    val username: String?
+        get() = authentication?.localAuthentication?.username
+    val formattedUsername: String?
+        get() = if (username != null) "@$username" else null
+
+    override fun toString(): String {
+        return authentication?.localAuthentication?.username ?: ""
+    }
+}

Habitica/src/main/java/com/habitrpg/android/habitica/ui/helpers/AutocompleteAdapter.kt

@@ -0,0 +1,64 @@
+package com.habitrpg.android.habitica.ui.helpers
+
+import android.content.Context
+import android.view.View
+import android.view.ViewGroup
+import android.widget.BaseAdapter
+import android.widget.Filter
+import android.widget.Filterable
+import android.widget.TextView
+import com.habitrpg.android.habitica.R
+import com.habitrpg.android.habitica.data.SocialRepository
+import com.habitrpg.android.habitica.extensions.inflate
+import com.habitrpg.android.habitica.models.social.FindUsernameResult
+import com.habitrpg.android.habitica.ui.views.social.UsernameLabel
+
+class AutocompleteAdapter(val context: Context, val socialRepository: SocialRepository) : BaseAdapter(), Filterable {
+    private var results: List<FindUsernameResult> = arrayListOf()
+
+    override fun getFilter(): Filter {
+        return object : Filter() {
+            override fun performFiltering(constraint: CharSequence?): FilterResults {
+                val filterResults = FilterResults()
+                if (constraint != null && constraint.isNotEmpty()) {
+                    results = socialRepository.findUsernames(constraint.toString()).blockingFirst(arrayListOf())
+                    filterResults.values = results
+                    filterResults.count = results.size
+                }
+                return filterResults
+            }
+
+            override fun publishResults(contraint: CharSequence?, results: FilterResults?) {
+                if (results != null && results.count > 0) {
+                    notifyDataSetChanged()
+                } else {
+                    notifyDataSetInvalidated()
+                }
+            }
+        }
+    }
+
+    override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View {
+        val view = parent?.inflate(R.layout.autocomplete_username)
+        val result = getItem(position)
+        val displaynameView = view?.findViewById<UsernameLabel>(R.id.display_name_view)
+        displaynameView?.username = result.username
+        displaynameView?.tier = result.contributor?.level ?: 0
+        view?.findViewById<TextView>(R.id.username_view)?.text = result.formattedUsername
+        return view ?: View(context)
+    }
+
+    override fun getItem(position: Int): FindUsernameResult {
+        return results[position]
+    }
+
+    override fun getItemId(position: Int): Long {
+        return getItem(position).id.hashCode().toLong()
+    }
+
+    override fun getCount(): Int {
+        return results.size
+    }
+
+
+}

Habitica/src/main/java/com/habitrpg/android/habitica/ui/helpers/ChatInputTokenizer.kt

@@ -0,0 +1,60 @@
+package com.habitrpg.android.habitica.ui.helpers
+
+import android.text.SpannableString
+import android.text.Spanned
+import android.text.TextUtils
+import android.widget.MultiAutoCompleteTextView
+
+
+class ChatInputTokenizer : MultiAutoCompleteTextView.Tokenizer {
+
+    override fun findTokenStart(text: CharSequence, cursor: Int): Int {
+        var i = cursor
+
+        while (i > 0 && text[i - 1] != '@') {
+            i--
+        }
+
+        //Check if token really started with @, else we don't have a valid token
+        return if (i < 1 || text[i - 1] != '@') {
+            cursor
+        } else i
+
+    }
+
+    override fun findTokenEnd(text: CharSequence, cursor: Int): Int {
+        var i = cursor
+        val len = text.length
+
+        while (i < len) {
+            if (text[i] == ' ') {
+                return i
+            } else {
+                i++
+            }
+        }
+
+        return len
+    }
+
+    override fun terminateToken(text: CharSequence): CharSequence {
+        var i = text.length
+
+        while (i > 0 && text[i - 1] == ' ') {
+            i--
+        }
+
+        return if (i > 0 && text[i - 1] == ' ') {
+            text
+        } else {
+            if (text is Spanned) {
+                val sp = SpannableString(text.toString() + " ")
+                TextUtils.copySpansFrom(text, 0, text.length,
+                        Any::class.java, sp, 0)
+                sp
+            } else {
+                text.toString() + " "
+            }
+        }
+    }
+}

Habitica/src/main/java/com/habitrpg/android/habitica/ui/views/social/ChatBarView.kt

@@ -2,8 +2,6 @@ package com.habitrpg.android.habitica.ui.views.social
 
 import android.content.Context
 import android.os.Build
-import androidx.core.content.ContextCompat
-import androidx.appcompat.widget.AppCompatEditText
 import android.text.Editable
 import android.text.TextWatcher
 import android.util.AttributeSet
@@ -12,18 +10,26 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.inputmethod.InputMethodManager
 import android.widget.*
+import androidx.core.content.ContextCompat
 import androidx.core.view.updateLayoutParams
+import com.habitrpg.android.habitica.HabiticaBaseApplication
 import com.habitrpg.android.habitica.R
+import com.habitrpg.android.habitica.data.SocialRepository
+import com.habitrpg.android.habitica.ui.helpers.AutocompleteAdapter
+import com.habitrpg.android.habitica.ui.helpers.ChatInputTokenizer
 import com.habitrpg.android.habitica.ui.helpers.NavbarUtils
 import com.habitrpg.android.habitica.ui.helpers.bindView
-import net.pherth.android.emoji_library.EmojiEditText
 import net.pherth.android.emoji_library.EmojiPopup
-import net.pherth.android.emoji_library.EmojiTextView
+import javax.inject.Inject
+
 
 class ChatBarView : FrameLayout {
 
+    @Inject
+    lateinit var socialRepository: SocialRepository
+
     private val sendButton: ImageButton by bindView(R.id.sendButton)
-    private val chatEditText: EmojiEditText by bindView(R.id.chatEditText)
+    private val chatEditText: MultiAutoCompleteTextView by bindView(R.id.chatEditText)
     private val textIndicator: TextView by bindView(R.id.text_indicator)
     private val indicatorSpacing: View by bindView(R.id.indicator_spacing)
     private val emojiButton: ImageButton by bindView(R.id.emojiButton)
@@ -50,6 +56,8 @@ class ChatBarView : FrameLayout {
         inflater?.inflate(R.layout.tavern_chat_new_entry_item, this)
         this.setBackgroundResource(R.color.white)
 
+        HabiticaBaseApplication.component?.inject(this)
+
         chatEditText.addTextChangedListener(object: TextWatcher {
             override fun afterTextChanged(s: Editable?) {}
 
@@ -98,6 +106,12 @@ class ChatBarView : FrameLayout {
             chatEditText.dispatchKeyEvent(event)
         }
         resizeForDrawingUnderNavbar()
+
+        val tagArray = AutocompleteAdapter(context, socialRepository)
+        chatEditText.setAdapter(tagArray)
+        chatEditText.threshold = 2
+
+        chatEditText.setTokenizer(ChatInputTokenizer())
     }
 
     private fun updateTextIndicator(text: String) {
@@ -166,7 +180,7 @@ class ChatBarView : FrameLayout {
         }
     }
 
-    private inner class EmojiClickListener internal constructor(internal var view: EmojiEditText) : View.OnClickListener {
+    private inner class EmojiClickListener internal constructor(internal var view: MultiAutoCompleteTextView) : View.OnClickListener {
 
         override fun onClick(v: View) {
             if (!popup.isShowing) {

Habitica/src/main/java/com/habitrpg/android/habitica/utils/FindUsernameResultDeserializer.kt

@@ -0,0 +1,28 @@
+package com.habitrpg.android.habitica.utils
+
+import com.google.gson.JsonDeserializationContext
+import com.google.gson.JsonDeserializer
+import com.google.gson.JsonElement
+import com.google.gson.JsonParseException
+import com.habitrpg.android.habitica.models.social.FindUsernameResult
+import com.habitrpg.android.habitica.models.user.Authentication
+import com.habitrpg.android.habitica.models.user.ContributorInfo
+import java.lang.reflect.Type
+
+class FindUsernameResultDeserializer : JsonDeserializer<FindUsernameResult> {
+    @Throws(JsonParseException::class)
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext): FindUsernameResult {
+        val obj = json.asJsonObject
+
+        val result = FindUsernameResult()
+
+        if (obj.has("contributor")) {
+            result.contributor = context.deserialize<ContributorInfo>(obj.get("contributor"), ContributorInfo::class.java)
+        }
+        if (obj.has("auth")) {
+            result.authentication = context.deserialize<Authentication>(obj.get("auth"), Authentication::class.java)
+        }
+
+        return result
+    }
+}