use number of voters instead of votes to calculate poll results (#1733)

* adjust poll vote text, votes -> people

* use number of voters instead of votes to calculate poll results

* fix tests

app/src/main/java/com/keylesspalace/tusky/adapter/PollAdapter.kt

@@ -26,7 +26,6 @@ import androidx.recyclerview.widget.RecyclerView
 import com.keylesspalace.tusky.R
 import com.keylesspalace.tusky.entity.Emoji
 import com.keylesspalace.tusky.util.CustomEmojiHelper
-import com.keylesspalace.tusky.util.HtmlUtils
 import com.keylesspalace.tusky.util.visible
 import com.keylesspalace.tusky.viewdata.PollOptionViewData
 import com.keylesspalace.tusky.viewdata.buildDescription
@@ -36,12 +35,19 @@ class PollAdapter: RecyclerView.Adapter<PollViewHolder>() {
 
     private var pollOptions: List<PollOptionViewData> = emptyList()
     private var voteCount: Int = 0
+    private var votersCount: Int? = null
     private var mode = RESULT
     private var emojis: List<Emoji> = emptyList()
 
-    fun setup(options: List<PollOptionViewData>, voteCount: Int, emojis: List<Emoji>, mode: Int) {
+    fun setup(
+            options: List<PollOptionViewData>,
+            voteCount: Int,
+            votersCount: Int?,
+            emojis: List<Emoji>,
+            mode: Int) {
         this.pollOptions = options
         this.voteCount = voteCount
+        this.votersCount = votersCount
         this.emojis = emojis
         this.mode = mode
         notifyDataSetChanged()
@@ -71,7 +77,7 @@ class PollAdapter: RecyclerView.Adapter<PollViewHolder>() {
 
         when(mode) {
             RESULT -> {
-                val percent = calculatePercent(option.votesCount, voteCount)
+                val percent = calculatePercent(option.votesCount, votersCount, voteCount)
                 val emojifiedPollOptionText = CustomEmojiHelper.emojifyText(buildDescription(option.title, percent, holder.resultTextView.context), emojis, holder.resultTextView)
                 holder.resultTextView.text =  EmojiCompat.get().process(emojifiedPollOptionText)
 

app/src/main/java/com/keylesspalace/tusky/adapter/StatusBaseViewHolder.java

@@ -869,7 +869,7 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
             List<PollOptionViewData> options = poll.getOptions();
             for (int i = 0; i < args.length; i++) {
                 if (i < options.size()) {
-                    int percent = PollViewDataKt.calculatePercent(options.get(i).getVotesCount(), poll.getVotesCount());
+                    int percent = PollViewDataKt.calculatePercent(options.get(i).getVotesCount(), poll.getVotersCount(), poll.getVotesCount());
                     args[i] = buildDescription(options.get(i).getTitle(), percent, context);
                 } else {
                     args[i] = "";
@@ -912,12 +912,12 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
 
         if (expired || poll.getVoted()) {
             // no voting possible
-            pollAdapter.setup(poll.getOptions(), poll.getVotesCount(), emojis, PollAdapter.RESULT);
+            pollAdapter.setup(poll.getOptions(), poll.getVotesCount(), poll.getVotersCount(), emojis, PollAdapter.RESULT);
 
             pollButton.setVisibility(View.GONE);
         } else {
             // voting possible
-            pollAdapter.setup(poll.getOptions(), poll.getVotesCount(), emojis, poll.getMultiple() ? PollAdapter.MULTIPLE : PollAdapter.SINGLE);
+            pollAdapter.setup(poll.getOptions(), poll.getVotesCount(), poll.getVotersCount(), emojis, poll.getMultiple() ? PollAdapter.MULTIPLE : PollAdapter.SINGLE);
 
             pollButton.setVisibility(View.VISIBLE);
 
@@ -944,8 +944,14 @@ public abstract class StatusBaseViewHolder extends RecyclerView.ViewHolder {
     private CharSequence getPollInfoText(long timestamp, PollViewData poll,
                                          StatusDisplayOptions statusDisplayOptions,
                                          Context context) {
-        String votes = numberFormat.format(poll.getVotesCount());
-        String votesText = context.getResources().getQuantityString(R.plurals.poll_info_votes, poll.getVotesCount(), votes);
+        String votesText;
+        if(poll.getVotersCount() == null) {
+            String voters = numberFormat.format(poll.getVotesCount());
+            votesText = context.getResources().getQuantityString(R.plurals.poll_info_votes, poll.getVotesCount(), voters);
+        } else {
+            String voters = numberFormat.format(poll.getVotersCount());
+            votesText = context.getResources().getQuantityString(R.plurals.poll_info_people, poll.getVotersCount(), voters);
+        }
         CharSequence pollDurationInfo;
         if (poll.getExpired()) {
             pollDurationInfo = context.getString(R.string.poll_info_closed);

app/src/main/java/com/keylesspalace/tusky/entity/Poll.kt

@@ -9,6 +9,7 @@ data class Poll(
         val expired: Boolean,
         val multiple: Boolean,
         @SerializedName("votes_count") val votesCount: Int,
+        @SerializedName("voters_count") val votersCount: Int?, // nullable for compatibility with Pleroma
         val options: List<PollOption>,
         val voted: Boolean
 ) {
@@ -22,7 +23,12 @@ data class Poll(
             }
         }
 
-        return copy(options = newOptions, votesCount = votesCount + choices.size, voted = true)
+        return copy(
+                options = newOptions,
+                votesCount = votesCount + choices.size,
+                votersCount = votersCount?.plus(1),
+                voted = true
+        )
     }
 
     fun toNewPoll(creationDate: Date) = NewPoll(

app/src/main/java/com/keylesspalace/tusky/util/NotificationHelper.java

@@ -643,7 +643,7 @@ public class NotificationHelper {
                     Poll poll = notification.getStatus().getPoll();
                     for(PollOption option: poll.getOptions()) {
                         builder.append(buildDescription(option.getTitle(),
-                                PollViewDataKt.calculatePercent(option.getVotesCount(), poll.getVotesCount()),
+                                PollViewDataKt.calculatePercent(option.getVotesCount(), poll.getVotersCount(), poll.getVotesCount()),
                                 context));
                         builder.append('\n');
                     }

app/src/main/java/com/keylesspalace/tusky/util/StatusViewHelper.kt

@@ -24,7 +24,6 @@ import android.widget.ImageView
 import android.widget.TextView
 import androidx.annotation.DrawableRes
 import androidx.appcompat.content.res.AppCompatResources
-import androidx.core.content.ContextCompat
 import com.bumptech.glide.Glide
 import com.keylesspalace.tusky.R
 import com.keylesspalace.tusky.entity.Attachment
@@ -275,17 +274,22 @@ class StatusViewHelper(private val itemView: View) {
 
     private fun getPollInfoText(timestamp: Long, poll: PollViewData, pollDescription: TextView, useAbsoluteTime: Boolean): CharSequence {
         val context = pollDescription.context
+
+        val votesText = if(poll.votersCount == null) {
             val votes = NumberFormat.getNumberInstance().format(poll.votesCount.toLong())
-        val votesText = context.resources.getQuantityString(R.plurals.poll_info_votes, poll.votesCount, votes)
-        val pollDurationInfo: CharSequence
-        if (poll.expired) {
-            pollDurationInfo = context.getString(R.string.poll_info_closed)
+            context.resources.getQuantityString(R.plurals.poll_info_votes, poll.votesCount, votes)
+        } else {
+            val votes = NumberFormat.getNumberInstance().format(poll.votersCount.toLong())
+            context.resources.getQuantityString(R.plurals.poll_info_people, poll.votersCount, votes)
+        }
+        val pollDurationInfo = if (poll.expired) {
+            context.getString(R.string.poll_info_closed)
         } else {
             if (useAbsoluteTime) {
-                pollDurationInfo = context.getString(R.string.poll_info_time_absolute, getAbsoluteTime(poll.expiresAt))
+                context.getString(R.string.poll_info_time_absolute, getAbsoluteTime(poll.expiresAt))
             } else {
                 val pollDuration = TimestampUtils.formatPollDuration(context, poll.expiresAt!!.time, timestamp)
-                pollDurationInfo = context.getString(R.string.poll_info_time_relative, pollDuration)
+                context.getString(R.string.poll_info_time_relative, pollDuration)
             }
         }
 
@@ -298,7 +302,7 @@ class StatusViewHelper(private val itemView: View) {
 
         for (i in 0 until Status.MAX_POLL_OPTIONS) {
             if (i < options.size) {
-                val percent = calculatePercent(options[i].votesCount, poll.votesCount)
+                val percent = calculatePercent(options[i].votesCount, poll.votersCount, poll.votesCount)
 
                 val pollOptionText = buildDescription(options[i].title, percent, pollResults[i].context)
                 pollResults[i].text = CustomEmojiHelper.emojifyText(pollOptionText, emojis, pollResults[i])

app/src/main/java/com/keylesspalace/tusky/viewdata/PollViewData.kt

@@ -31,6 +31,7 @@ data class PollViewData(
         val expired: Boolean,
         val multiple: Boolean,
         val votesCount: Int,
+        val votersCount: Int?,
         val options: List<PollOptionViewData>,
         var voted: Boolean
 )
@@ -41,10 +42,11 @@ data class PollOptionViewData(
         var selected: Boolean
 )
 
-fun calculatePercent(fraction: Int, total: Int): Int {
+fun calculatePercent(fraction: Int, totalVoters: Int?, totalVotes: Int): Int {
     return if (fraction == 0) {
         0
     } else {
+        val total = totalVoters ?: totalVotes
         (fraction / total.toDouble() * 100).roundToInt()
     }
 }
@@ -58,20 +60,21 @@ fun buildDescription(title: String, percent: Int, context: Context): Spanned {
 fun Poll?.toViewData(): PollViewData? {
     if (this == null) return null
     return PollViewData(
-            id,
-            expiresAt,
-            expired,
-            multiple,
-            votesCount,
-            options.map { it.toViewData() },
-            voted
+            id = id,
+            expiresAt = expiresAt,
+            expired = expired,
+            multiple = multiple,
+            votesCount = votesCount,
+            votersCount = votersCount,
+            options = options.map { it.toViewData() },
+            voted = voted
     )
 }
 
 fun PollOption.toViewData(): PollOptionViewData {
     return PollOptionViewData(
-            title,
-            votesCount,
-            false
+            title = title,
+            votesCount = votesCount,
+            selected = false
     )
 }

app/src/main/res/values/strings.xml

@@ -494,6 +494,10 @@
         <item quantity="one">%s vote</item>
         <item quantity="other">%s votes</item>
     </plurals>
+    <plurals name="poll_info_people">
+        <item quantity="one">%s person</item>
+        <item quantity="other">%s people</item>
+    </plurals>
     <string name="poll_info_time_relative">%s left</string>
     <string name="poll_info_time_absolute">ends at %s</string>
     <string name="poll_info_closed">closed</string>

app/src/test/java/com/keylesspalace/tusky/FilterTest.kt

@@ -222,6 +222,7 @@ class FilterTest {
                             expired = false,
                             multiple = false,
                             votesCount = 0,
+                            votersCount = 0,
                             options = pollOptions.map {
                                 PollOption(it, 0)
                             },