From cfd227f9f29f40aa172ecccca0e7ca4105d7d4e1 Mon Sep 17 00:00:00 2001
From: Anthony Laibe <anthony@laibe.cc>
Date: Tue, 25 Jan 2022 11:08:58 +0100
Subject: [PATCH] fix(@chat): react to on clear history

fixes #4527
---
 .../main/chat_section/chat_content/messages/controller.nim  | 6 ++++++
 .../main/chat_section/chat_content/messages/module.nim      | 3 +++
 .../private_interfaces/module_view_delegate_interface.nim   | 3 +++
 src/app/modules/shared_models/message_model.nim             | 6 +++++-
 4 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/src/app/modules/main/chat_section/chat_content/messages/controller.nim b/src/app/modules/main/chat_section/chat_content/messages/controller.nim
index 389e93fbeb..1172bb6b2f 100644
--- a/src/app/modules/main/chat_section/chat_content/messages/controller.nim
+++ b/src/app/modules/main/chat_section/chat_content/messages/controller.nim
@@ -115,6 +115,12 @@ method init*(self: Controller) =
       return
     self.delegate.onMessageEdited(args.message)
 
+  self.events.on(SIGNAL_CHAT_HISTORY_CLEARED) do (e: Args):
+    var args = ChatArgs(e)
+    if(self.chatId != args.chatId):
+      return
+    self.delegate.onHistoryCleared()
+
 method getMySectionId*(self: Controller): string =
   return self.sectionId
 
diff --git a/src/app/modules/main/chat_section/chat_content/messages/module.nim b/src/app/modules/main/chat_section/chat_content/messages/module.nim
index 8a975334d7..552acc947e 100644
--- a/src/app/modules/main/chat_section/chat_content/messages/module.nim
+++ b/src/app/modules/main/chat_section/chat_content/messages/module.nim
@@ -281,6 +281,9 @@ method onMessageEdited*(self: Module, message: MessageDto) =
   let renderedMessageText = self.controller.getRenderedText(message.parsedText)
   self.view.model().updateEditedMsg(message.id, renderedMessageText, message.containsContactMentions())
 
+method onHistoryCleared*(self: Module) =
+  self.view.model().clear()
+
 method updateChatIdentifier*(self: Module) =
   # Delete the old ChatIdentifier message first
   self.view.model().removeItem(CHAT_IDENTIFIER_MESSAGE_ID)
diff --git a/src/app/modules/main/chat_section/chat_content/messages/private_interfaces/module_view_delegate_interface.nim b/src/app/modules/main/chat_section/chat_content/messages/private_interfaces/module_view_delegate_interface.nim
index 8371323a1f..a81d16ba62 100644
--- a/src/app/modules/main/chat_section/chat_content/messages/private_interfaces/module_view_delegate_interface.nim
+++ b/src/app/modules/main/chat_section/chat_content/messages/private_interfaces/module_view_delegate_interface.nim
@@ -30,3 +30,6 @@ method onMessageDeleted*(self: AccessInterface, messageId: string) {.base.} =
 
 method editMessage*(self: AccessInterface, messageId: string, updatedMsg: string) {.base.} =
   raise newException(ValueError, "No implementation available")
+
+method onHistoryCleared*(self: AccessInterface) {.base.} =
+  raise newException(ValueError, "No implementation available")
diff --git a/src/app/modules/shared_models/message_model.nim b/src/app/modules/shared_models/message_model.nim
index 1bdea377f0..59590163a7 100644
--- a/src/app/modules/shared_models/message_model.nim
+++ b/src/app/modules/shared_models/message_model.nim
@@ -350,4 +350,8 @@ QtObject:
     let index = self.createIndex(ind, 0, nil)
     self.dataChanged(index, index, @[ModelRole.MessageText.int, ModelRole.MessageContainsMentions.int, ModelRole.IsEdited.int])
 
-
+  proc clear*(self: Model) = 
+    self.beginResetModel()
+    self.items = @[]
+    self.endResetModel()
+    self.countChanged()
\ No newline at end of file