kpcli: adds 'db' subcommand for interacting with the database

kpcli/src/printers.rs

@@ -1,14 +1,48 @@
 use std::fmt::Display;
-
+use time::OffsetDateTime;
 use pretty::RcDoc;
-use kordophone::model::Conversation;
+
+pub struct PrintableConversation {
+    pub guid: String,
+    pub date: OffsetDateTime,
+    pub unread_count: i32,
+    pub last_message_preview: Option<String>,
+    pub participants: Vec<String>,
+    pub display_name: Option<String>,
+}
+
+impl From<kordophone::model::Conversation> for PrintableConversation {
+    fn from(value: kordophone::model::Conversation) -> Self {
+        Self {
+            guid: value.guid, 
+            date: value.date,
+            unread_count: value.unread_count,
+            last_message_preview: value.last_message_preview,
+            participants: value.participant_display_names,
+            display_name: value.display_name,
+        }
+    }
+}
+
+impl From<kordophone_db::models::Conversation> for PrintableConversation {
+    fn from(value: kordophone_db::models::Conversation) -> Self {
+        Self {
+            guid: value.guid,
+            date: OffsetDateTime::from_unix_timestamp(value.date.and_utc().timestamp()).unwrap(),
+            unread_count: value.unread_count.into(),
+            last_message_preview: value.last_message_preview,
+            participants: value.participants.into_iter().map(|p| p.display_name).collect(),
+            display_name: value.display_name,
+        }
+    }
+}
 
 pub struct ConversationPrinter<'a> {
-    doc: RcDoc<'a, Conversation>
+    doc: RcDoc<'a, PrintableConversation>
 }
 
 impl<'a> ConversationPrinter<'a> {
-    pub fn new(conversation: &'a Conversation) -> Self {
+    pub fn new(conversation: &'a PrintableConversation) -> Self {
         let preview = conversation.last_message_preview
             .as_deref()
             .unwrap_or("<null>")
@@ -27,7 +61,7 @@ impl<'a> ConversationPrinter<'a> {
                     .append("[")
                     .append(RcDoc::line()
                         .append(
-                            conversation.participant_display_names
+                            conversation.participants
                                 .iter()
                                 .map(|name| 
                                     RcDoc::text(name)