From 801df444f121accf0c08e43a09ee3b25d82c1647 Mon Sep 17 00:00:00 2001
From: Paul Nameless <reacsdas@gmail.com>
Date: Wed, 24 Jun 2020 21:18:36 +0800
Subject: [PATCH 1/2] Show unseen flag in chat pane

---
 README.md   |  3 +++
 tg/main.py  |  4 ++--
 tg/utils.py |  2 +-
 tg/views.py | 31 +++++++++++++++++--------------
 4 files changed, 23 insertions(+), 17 deletions(-)

diff --git a/README.md b/README.md
index 8f10789..2766674 100644
--- a/README.md
+++ b/README.md
@@ -125,7 +125,10 @@ CHAT_FLAGS = {
     "online": "●",
     "pinned": "P",
     "muted": "M",
+    # chat is marked as unread
     "unread": "U",
+    # last msg haven't been seen by recipient
+    "unseen": "✓",
 }
 MSG_FLAGS = {
     "selected": "*",
diff --git a/tg/main.py b/tg/main.py
index 1c6b02b..05ac374 100644
--- a/tg/main.py
+++ b/tg/main.py
@@ -25,8 +25,8 @@ def run(tg: Tdlib, stdscr: window) -> None:
 
     model = Model(tg)
     status_view = StatusView(stdscr)
-    msg_view = MsgView(stdscr, model.msgs, model, model.users)
-    chat_view = ChatView(stdscr, model.users)
+    msg_view = MsgView(stdscr, model)
+    chat_view = ChatView(stdscr, model)
     view = View(stdscr, chat_view, msg_view, status_view)
     controller = Controller(model, view, tg)
 
diff --git a/tg/utils.py b/tg/utils.py
index 47a9a7d..c27f1da 100644
--- a/tg/utils.py
+++ b/tg/utils.py
@@ -24,7 +24,7 @@ emoji_pattern = re.compile(
     "\U0001F300-\U0001F5FF"  # symbols & pictographs
     "\U0001F680-\U0001F6FF"  # transport & map symbols
     "\U0001F1E0-\U0001F1FF"  # flags (iOS)
-    "\U00002702-\U000027B0"
+    # "\U00002702-\U000027B0"
     # "\U000024C2-\U0001F251"
     "]+",
     flags=re.UNICODE,
diff --git a/tg/views.py b/tg/views.py
index 6719bc1..e7914f8 100644
--- a/tg/views.py
+++ b/tg/views.py
@@ -126,13 +126,13 @@ class StatusView:
 
 
 class ChatView:
-    def __init__(self, stdscr: window, users: UserModel, p: float = 0.5):
+    def __init__(self, stdscr: window, model: Model):
         self.stdscr = stdscr
         self.h = 0
         self.w = 0
         self.win = stdscr.subwin(self.h, self.w, 0, 0)
         self._refresh = self.win.refresh
-        self.users = users
+        self.model = model
 
     def resize(self, rows: int, cols: int, p: float = 0.25) -> None:
         self.h = rows - 1
@@ -214,7 +214,17 @@ class ChatView:
     ) -> str:
         flags = []
 
-        if self.users.is_online(chat["id"]):
+        msg = chat.get("last_message")
+        if (
+            msg
+            and self.model.is_me(msg["sender_user_id"])
+            and msg["id"] > chat["last_read_outbox_message_id"]
+            and not self.model.is_me(chat["id"])
+        ):
+            # last msg haven't been seen by recipient
+            flags.append("unseen")
+
+        if self.model.users.is_online(chat["id"]):
             flags.append("online")
 
         if is_pinned:
@@ -234,16 +244,9 @@ class ChatView:
 
 class MsgView:
     def __init__(
-        self,
-        stdscr: window,
-        msg_model: MsgModel,
-        model: Model,
-        users: UserModel,
-        p: float = 0.5,
-    ) -> None:
-        self.msg_model = msg_model
+        self, stdscr: window, model: Model,
+    ):
         self.model = model
-        self.users = users
         self.stdscr = stdscr
         self.h = 0
         self.w = 0
@@ -297,7 +300,7 @@ class MsgView:
     def _format_reply_msg(
         self, chat_id: int, msg: str, reply_to: int, width_limit: int
     ) -> str:
-        _msg = self.msg_model.get_message(chat_id, reply_to)
+        _msg = self.model.msgs.get_message(chat_id, reply_to)
         if not _msg:
             return msg
         reply_msg = MsgProxy(_msg)
@@ -473,7 +476,7 @@ class MsgView:
     def _get_user_by_id(self, user_id: int) -> str:
         if user_id == 0:
             return ""
-        user = self.users.get_user(user_id)
+        user = self.model.users.get_user(user_id)
         if user["first_name"] and user["last_name"]:
             return f'{user["first_name"]} {user["last_name"]}'[:20]
 

From 2f53e6edae71b50563ba792899a2269608bb5ceb Mon Sep 17 00:00:00 2001
From: Paul Nameless <reacsdas@gmail.com>
Date: Fri, 26 Jun 2020 10:30:51 +0800
Subject: [PATCH 2/2] Add type hints for remove_message function

---
 tg/models.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tg/models.py b/tg/models.py
index f6fbfee..c46fe89 100644
--- a/tg/models.py
+++ b/tg/models.py
@@ -323,7 +323,7 @@ class MsgModel:
             return result.update
         return next(iter(m for m in self.msgs[chat_id] if m["id"] == msg_id))
 
-    def remove_message(self, chat_id, msg_id):
+    def remove_message(self, chat_id: int, msg_id: int):
         msg_set = self.msg_ids[chat_id]
         if msg_id not in msg_set:
             return False