Make new ChatMsg trait for Chat message rendering

src/euph/message.rs

@@ -0,0 +1,62 @@
+use crossterm::style::{ContentStyle, Stylize};
+use time::OffsetDateTime;
+use toss::styled::Styled;
+
+use crate::store::Msg;
+use crate::ui::ChatMsg;
+
+use super::api::{Snowflake, Time};
+use super::util;
+
+#[derive(Debug, Clone)]
+pub struct Message {
+    pub id: Snowflake,
+    pub parent: Option<Snowflake>,
+    pub time: Time,
+    pub nick: String,
+    pub content: String,
+}
+
+fn styled_nick(nick: &str) -> Styled {
+    Styled::new_plain("[")
+        .then(nick, util::nick_style(nick))
+        .then_plain("]")
+}
+
+fn styled_content(content: &str) -> Styled {
+    Styled::new_plain(content.trim())
+}
+
+impl Msg for Message {
+    type Id = Snowflake;
+
+    fn id(&self) -> Self::Id {
+        self.id
+    }
+
+    fn parent(&self) -> Option<Self::Id> {
+        self.parent
+    }
+
+    fn last_possible_id() -> Self::Id {
+        Snowflake::MAX
+    }
+}
+
+impl ChatMsg for Message {
+    fn time(&self) -> OffsetDateTime {
+        self.time.0
+    }
+
+    fn styled(&self) -> (Styled, Styled) {
+        Self::pseudo(&self.nick, &self.content)
+    }
+
+    fn edit(nick: &str, content: &str) -> (Styled, Styled) {
+        (styled_nick(nick), styled_content(content))
+    }
+
+    fn pseudo(nick: &str, content: &str) -> (Styled, Styled) {
+        (styled_nick(nick), styled_content(content))
+    }
+}