Visualizing proposed edits from other people

app/src/main/java/com/vitorpamplona/amethyst/model/Account.kt

@@ -1467,6 +1467,8 @@ class Account(
     fun sendEdit(
         message: String,
         originalNote: Note,
+        notify: HexKey?,
+        summary: String? = null,
         relayList: List<Relay>? = null,
     ) {
         if (!isWriteable()) return
@@ -1476,6 +1478,8 @@ class Account(
         TextNoteModificationEvent.create(
             content = message,
             eventId = idHex,
+            notify = notify,
+            summary = summary,
             signer = signer,
         ) {
             LocalCache.justConsume(it, null)

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/EditPostView.kt

@@ -94,6 +94,7 @@ import com.vitorpamplona.amethyst.ui.components.BechLink
 import com.vitorpamplona.amethyst.ui.components.InvoiceRequest
 import com.vitorpamplona.amethyst.ui.components.LoadUrlPreview
 import com.vitorpamplona.amethyst.ui.components.VideoView
+import com.vitorpamplona.amethyst.ui.note.NoteCompose
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.AccountViewModel
 import com.vitorpamplona.amethyst.ui.screen.loggedIn.UserLine
 import com.vitorpamplona.amethyst.ui.theme.BitcoinOrange
@@ -101,7 +102,9 @@ import com.vitorpamplona.amethyst.ui.theme.QuoteBorder
 import com.vitorpamplona.amethyst.ui.theme.Size10dp
 import com.vitorpamplona.amethyst.ui.theme.Size5dp
 import com.vitorpamplona.amethyst.ui.theme.StdHorzSpacer
+import com.vitorpamplona.amethyst.ui.theme.StdVertSpacer
 import com.vitorpamplona.amethyst.ui.theme.placeholderText
+import com.vitorpamplona.amethyst.ui.theme.replyModifier
 import com.vitorpamplona.amethyst.ui.theme.subtleBorder
 import kotlinx.collections.immutable.toImmutableList
 import kotlinx.coroutines.Dispatchers
@@ -119,6 +122,7 @@ fun EditPostView(
     nav: (String) -> Unit,
 ) {
     val postViewModel: EditPostViewModel = viewModel()
+    postViewModel.prepare(edit, versionLookingAt, accountViewModel)
 
     val context = LocalContext.current
 
@@ -257,6 +261,21 @@ fun EditPostView(
                                         .fillMaxWidth()
                                         .verticalScroll(scrollState),
                             ) {
+                                postViewModel.editedFromNote?.let {
+                                    Row(Modifier.heightIn(max = 200.dp)) {
+                                        NoteCompose(
+                                            baseNote = it,
+                                            makeItShort = true,
+                                            unPackReply = false,
+                                            isQuotedNote = true,
+                                            modifier = MaterialTheme.colorScheme.replyModifier,
+                                            accountViewModel = accountViewModel,
+                                            nav = nav,
+                                        )
+                                        Spacer(modifier = StdVertSpacer)
+                                    }
+                                }
+
                                 MessageField(postViewModel)
 
                                 val myUrlPreview = postViewModel.urlPreview
@@ -353,6 +372,43 @@ fun EditPostView(
                                         }
                                     }
                                 }
+
+                                /*
+                                Row(
+                                    verticalAlignment = Alignment.CenterVertically,
+                                    modifier = Modifier.fillMaxWidth().padding(vertical = Size5dp, horizontal = Size10dp),
+                                ) {
+                                    Column {
+                                        Text(
+                                            text = stringResource(R.string.message_to_author),
+                                            fontSize = 18.sp,
+                                            fontWeight = FontWeight.W500,
+                                        )
+
+                                        Divider()
+
+                                        MyTextField(
+                                            value = postViewModel.subject,
+                                            onValueChange = { postViewModel.updateSubject(it) },
+                                            modifier = Modifier.fillMaxWidth(),
+                                            placeholder = {
+                                                Text(
+                                                    text = stringResource(R.string.message_to_author_placeholder),
+                                                    color = MaterialTheme.colorScheme.placeholderText,
+                                                )
+                                            },
+                                            visualTransformation =
+                                                UrlUserTagTransformation(
+                                                    MaterialTheme.colorScheme.primary,
+                                                ),
+                                            colors =
+                                                OutlinedTextFieldDefaults.colors(
+                                                    unfocusedBorderColor = Color.Transparent,
+                                                    focusedBorderColor = Color.Transparent,
+                                                ),
+                                        )
+                                    }
+                                }*/
                             }
                         }
 

app/src/main/java/com/vitorpamplona/amethyst/ui/actions/EditPostViewModel.kt

@@ -59,6 +59,8 @@ open class EditPostViewModel() : ViewModel() {
 
     var editedFromNote: Note? = null
 
+    var subject by mutableStateOf(TextFieldValue(""))
+
     var nip94attachments by mutableStateOf<List<FileHeaderEvent>>(emptyList())
     var nip95attachments by
         mutableStateOf<List<Pair<FileStorageEvent, FileStorageHeaderEvent>>>(emptyList())
@@ -80,6 +82,16 @@ open class EditPostViewModel() : ViewModel() {
     var canAddInvoice by mutableStateOf(false)
     var wantsInvoice by mutableStateOf(false)
 
+    open fun prepare(
+        edit: Note,
+        versionLookingAt: Note?,
+        accountViewModel: AccountViewModel,
+    ) {
+        this.accountViewModel = accountViewModel
+        this.account = accountViewModel.account
+        this.editedFromNote = edit
+    }
+
     open fun load(
         edit: Note,
         versionLookingAt: Note?,
@@ -111,15 +123,29 @@ open class EditPostViewModel() : ViewModel() {
             account?.sendNip95(it.first, it.second, relayList)
         }
 
+        val notify =
+            if (editedFromNote?.author?.pubkeyHex == account?.userProfile()?.pubkeyHex) {
+                null
+            } else {
+                // notifies if it is not the logged in user
+                editedFromNote?.author?.pubkeyHex
+            }
+
         account?.sendEdit(
             message = message.text,
             originalNote = editedFromNote!!,
+            notify = notify,
+            summary = subject.text.ifBlank { null },
             relayList = relayList,
         )
 
         cancel()
     }
 
+    open fun updateSubject(it: TextFieldValue) {
+        subject = it
+    }
+
     fun upload(
         galleryUri: Uri,
         alt: String?,
@@ -192,6 +218,7 @@ open class EditPostViewModel() : ViewModel() {
 
     open fun cancel() {
         message = TextFieldValue("")
+        subject = TextFieldValue("")
 
         editedFromNote = null
 

app/src/main/java/com/vitorpamplona/amethyst/ui/note/NoteCompose.kt

@@ -48,6 +48,8 @@ import androidx.compose.foundation.shape.CircleShape
 import androidx.compose.foundation.shape.CutCornerShape
 import androidx.compose.foundation.text.ClickableText
 import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.Button
+import androidx.compose.material3.Card
 import androidx.compose.material3.Divider
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.IconButton
@@ -85,6 +87,7 @@ import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.buildAnnotatedString
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
@@ -114,6 +117,7 @@ import com.vitorpamplona.amethyst.model.Note
 import com.vitorpamplona.amethyst.model.RelayBriefInfoCache
 import com.vitorpamplona.amethyst.model.User
 import com.vitorpamplona.amethyst.service.CachedGeoLocations
+import com.vitorpamplona.amethyst.ui.actions.EditPostView
 import com.vitorpamplona.amethyst.ui.actions.NewRelayListView
 import com.vitorpamplona.amethyst.ui.components.ClickableUrl
 import com.vitorpamplona.amethyst.ui.components.CreateClickableTextWithEmoji
@@ -183,6 +187,7 @@ import com.vitorpamplona.amethyst.ui.theme.boostedNoteModifier
 import com.vitorpamplona.amethyst.ui.theme.channelNotePictureModifier
 import com.vitorpamplona.amethyst.ui.theme.grayText
 import com.vitorpamplona.amethyst.ui.theme.imageModifier
+import com.vitorpamplona.amethyst.ui.theme.innerPostModifier
 import com.vitorpamplona.amethyst.ui.theme.lessImportantLink
 import com.vitorpamplona.amethyst.ui.theme.mediumImportanceLink
 import com.vitorpamplona.amethyst.ui.theme.newItemBackgroundColor
@@ -235,6 +240,7 @@ import com.vitorpamplona.quartz.events.RelaySetEvent
 import com.vitorpamplona.quartz.events.ReportEvent
 import com.vitorpamplona.quartz.events.RepostEvent
 import com.vitorpamplona.quartz.events.TextNoteEvent
+import com.vitorpamplona.quartz.events.TextNoteModificationEvent
 import com.vitorpamplona.quartz.events.UserMetadata
 import com.vitorpamplona.quartz.events.VideoEvent
 import com.vitorpamplona.quartz.events.VideoHorizontalEvent
@@ -291,8 +297,7 @@ fun NoteCompose(
                 nav = nav,
             )
         } else {
-            LongPressToQuickAction(baseNote = baseNote, accountViewModel = accountViewModel) { showPopup,
+            LongPressToQuickAction(baseNote = baseNote, accountViewModel = accountViewModel) { showPopup ->
-                ->
                 BlankNote(
                     remember {
                         modifier.combinedClickable(
@@ -1111,6 +1116,8 @@ class EditState() {
 
     fun versionId() = modificationToShowIndex + 1
 
+    fun latest() = modificationsList.lastOrNull()
+
     fun nextModification() {
         if (modificationToShowIndex < 0) {
             modificationToShowIndex = 0
@@ -1339,6 +1346,17 @@ private fun RenderNoteRow(
                 nav,
             )
         }
+        is TextNoteModificationEvent -> {
+            RenderTextModificationEvent(
+                baseNote,
+                makeItShort,
+                canPreview,
+                backgroundColor,
+                editState,
+                accountViewModel,
+                nav,
+            )
+        }
         else -> {
             RenderTextEvent(
                 baseNote,
@@ -1467,6 +1485,124 @@ fun RenderTextEvent(
     }
 }
 
+@Composable
+fun RenderTextModificationEvent(
+    note: Note,
+    makeItShort: Boolean,
+    canPreview: Boolean,
+    backgroundColor: MutableState<Color>,
+    editStateByAuthor: State<GenericLoadable<EditState>>,
+    accountViewModel: AccountViewModel,
+    nav: (String) -> Unit,
+) {
+    val noteEvent = note.event as? TextNoteModificationEvent ?: return
+    val noteAuthor = note.author ?: return
+
+    val isAuthorTheLoggedUser = remember(note.event) { accountViewModel.isLoggedUser(note.author) }
+
+    val editState =
+        remember {
+            derivedStateOf {
+                val loadable = editStateByAuthor.value as? GenericLoadable.Loaded<EditState>
+
+                val state = EditState()
+
+                val latestChangeByAuthor =
+                    if (loadable != null && loadable.loaded.hasModificationsToShow()) {
+                        loadable.loaded.latest()
+                    } else {
+                        null
+                    }
+
+                state.updateModifications(listOfNotNull(latestChangeByAuthor, note))
+
+                GenericLoadable.Loaded(state)
+            }
+        }
+
+    val wantsToEditPost =
+        remember {
+            mutableStateOf(false)
+        }
+
+    Card(
+        modifier = MaterialTheme.colorScheme.imageModifier,
+    ) {
+        Column(Modifier.fillMaxWidth().padding(Size10dp)) {
+            Text(
+                text = stringResource(id = R.string.proposal_to_edit),
+                style =
+                    TextStyle(
+                        fontSize = 18.sp,
+                        fontWeight = FontWeight.Bold,
+                    ),
+            )
+
+            Spacer(modifier = StdVertSpacer)
+
+            noteEvent.summary()?.let {
+                TranslatableRichTextViewer(
+                    content = it,
+                    canPreview = canPreview && !makeItShort,
+                    modifier = Modifier.fillMaxWidth(),
+                    tags = EmptyTagList,
+                    backgroundColor = backgroundColor,
+                    accountViewModel = accountViewModel,
+                    nav = nav,
+                )
+                Spacer(modifier = StdVertSpacer)
+            }
+
+            noteEvent.editedNote()?.let {
+                LoadNote(baseNoteHex = it, accountViewModel = accountViewModel) { baseNote ->
+                    baseNote?.let {
+                        Column(
+                            modifier =
+                                MaterialTheme.colorScheme.innerPostModifier.padding(Size10dp).clickable {
+                                    routeFor(baseNote, accountViewModel.userProfile())?.let { nav(it) }
+                                },
+                        ) {
+                            NoteBody(
+                                baseNote = baseNote,
+                                showAuthorPicture = true,
+                                unPackReply = false,
+                                makeItShort = false,
+                                canPreview = true,
+                                showSecondRow = false,
+                                backgroundColor = backgroundColor,
+                                editState = editState,
+                                accountViewModel = accountViewModel,
+                                nav = nav,
+                            )
+
+                            if (wantsToEditPost.value) {
+                                EditPostView(
+                                    onClose = {
+                                        wantsToEditPost.value = false
+                                    },
+                                    edit = baseNote,
+                                    versionLookingAt = note,
+                                    accountViewModel = accountViewModel,
+                                    nav = nav,
+                                )
+                            }
+                        }
+                    }
+                }
+            }
+
+            Spacer(modifier = StdVertSpacer)
+
+            Button(
+                onClick = { wantsToEditPost.value = true },
+                modifier = Modifier.fillMaxWidth(),
+            ) {
+                Text(text = stringResource(id = R.string.accept_the_suggestion))
+            }
+        }
+    }
+}
+
 @Composable
 fun RenderPoll(
     note: Note,

app/src/main/java/com/vitorpamplona/amethyst/ui/note/UserProfilePicture.kt

@@ -581,13 +581,22 @@ fun NoteDropDownMenu(
             },
         )
         Divider()
-        if (state.isLoggedUser && note.event is TextNoteEvent) {
+        if (note.event is TextNoteEvent) {
+            if (state.isLoggedUser) {
                 DropdownMenuItem(
                     text = { Text(stringResource(R.string.edit_post)) },
                     onClick = {
                         wantsToEditPost.value = true
                     },
                 )
+            } else {
+                DropdownMenuItem(
+                    text = { Text(stringResource(R.string.propose_an_edit)) },
+                    onClick = {
+                        wantsToEditPost.value = true
+                    },
+                )
+            }
         }
         DropdownMenuItem(
             text = { Text(stringResource(R.string.broadcast)) },

app/src/main/java/com/vitorpamplona/amethyst/ui/screen/ThreadFeedView.kt

@@ -131,6 +131,7 @@ import com.vitorpamplona.amethyst.ui.note.RenderPoll
 import com.vitorpamplona.amethyst.ui.note.RenderPostApproval
 import com.vitorpamplona.amethyst.ui.note.RenderRepost
 import com.vitorpamplona.amethyst.ui.note.RenderTextEvent
+import com.vitorpamplona.amethyst.ui.note.RenderTextModificationEvent
 import com.vitorpamplona.amethyst.ui.note.VideoDisplay
 import com.vitorpamplona.amethyst.ui.note.observeEdits
 import com.vitorpamplona.amethyst.ui.note.showAmount
@@ -174,6 +175,7 @@ import com.vitorpamplona.quartz.events.PinListEvent
 import com.vitorpamplona.quartz.events.PollNoteEvent
 import com.vitorpamplona.quartz.events.RelaySetEvent
 import com.vitorpamplona.quartz.events.RepostEvent
+import com.vitorpamplona.quartz.events.TextNoteModificationEvent
 import com.vitorpamplona.quartz.events.VideoEvent
 import com.vitorpamplona.quartz.events.WikiNoteEvent
 import kotlinx.collections.immutable.toImmutableList
@@ -568,6 +570,16 @@ fun NoteMaster(
                         )
                     } else if (noteEvent is RepostEvent || noteEvent is GenericRepostEvent) {
                         RenderRepost(baseNote, backgroundColor, accountViewModel, nav)
+                    } else if (noteEvent is TextNoteModificationEvent) {
+                        RenderTextModificationEvent(
+                            note = baseNote,
+                            makeItShort = false,
+                            canPreview = true,
+                            backgroundColor,
+                            editState,
+                            accountViewModel,
+                            nav,
+                        )
                     } else if (noteEvent is PollNoteEvent) {
                         val canPreview =
                             note.author == account.userProfile() ||

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

@@ -55,6 +55,7 @@
     <string name="original">original</string>
     <string name="quote">Quote</string>
     <string name="fork">Fork</string>
+    <string name="propose_an_edit">Propose an Edit</string>
     <string name="new_amount_in_sats">New Amount in Sats</string>
     <string name="add">Add</string>
     <string name="replying_to">"replying to "</string>
@@ -795,4 +796,9 @@
     <string name="ots_info_description">There\'s proof this post was signed sometime before %1$s. The proof was stamped in the Bitcoin blockchain at that date and time.</string>
 
     <string name="edit_post">Edit Post</string>
+    <string name="proposal_to_edit">Proposal to improve your post</string>
+    <string name="message_to_author">Summary of changes</string>
+    <string name="message_to_author_placeholder">Quick fixes...</string>
+
+    <string name="accept_the_suggestion">Accept the Suggestion</string>
 </resources>

quartz/src/main/java/com/vitorpamplona/quartz/events/TextNoteModificationEvent.kt

@@ -36,6 +36,8 @@ class TextNoteModificationEvent(
 ) : Event(id, pubKey, createdAt, KIND, tags, content, sig) {
     fun editedNote() = firstTaggedEvent()
 
+    fun summary() = tags.firstOrNull { it.size > 1 && it[0] == "summary" }?.get(1)
+
     companion object {
         const val KIND = 1010
         const val ALT = "Content Change Event"
@@ -43,12 +45,25 @@ class TextNoteModificationEvent(
         fun create(
             content: String,
             eventId: HexKey,
+            notify: HexKey?,
+            summary: String?,
             signer: NostrSigner,
             createdAt: Long = TimeUtils.now(),
             onReady: (TextNoteModificationEvent) -> Unit,
         ) {
-            val tags = arrayOf(arrayOf("e", eventId), arrayOf("alt", ALT))
+            val tags = mutableListOf(arrayOf("e", eventId))
-            signer.sign(createdAt, KIND, tags, content, onReady)
+
+            notify?.let {
+                tags.add(arrayOf("p", it))
+            }
+
+            summary?.let {
+                tags.add(arrayOf("summary", it))
+            }
+
+            tags.add(arrayOf("alt", ALT))
+
+            signer.sign(createdAt, KIND, tags.toTypedArray(), content, onReady)
         }
     }
 }