refactor: Rename `private_message` to `direct_message`.

This commit renames all uses of `private_message` in `unread.js` to
`direct_message`. Renamed `private_message_count` to
`direct_message_count` and `right_sidebar_private_message_count` to
`right_sidebar_direct_message_count`.

web/src/notifications.js

@@ -120,7 +120,7 @@ export function redraw_title() {
 
 export function update_unread_counts(counts) {
     const new_unread_count = unread.calculate_notifiable_count(counts);
-    const new_pm_count = counts.private_message_count;
+    const new_pm_count = counts.direct_message_count;
     if (new_unread_count === unread_count && new_pm_count === pm_count) {
         return;
     }

web/src/pm_list.js

@@ -120,7 +120,7 @@ export function update_dom_with_unread_counts(counts) {
     // could matter.
     update_private_messages();
     // This is just the global unread count.
-    set_count(counts.private_message_count);
+    set_count(counts.direct_message_count);
 }
 
 export function highlight_all_private_messages_view() {

web/src/unread.js

@@ -780,7 +780,7 @@ export function get_counts() {
     // Return a data structure with various counts.  This function should be
     // pretty cheap, even if you don't care about all the counts, and you
     // should strive to keep it free of side effects on globals or DOM.
-    res.private_message_count = 0;
+    res.direct_message_count = 0;
     res.mentioned_message_count = unread_mentions_counter.size;
     res.direct_message_with_mention_count = direct_message_with_mention_count.size;
 
@@ -795,8 +795,8 @@ export function get_counts() {
 
     const pm_res = unread_direct_message_counter.get_counts();
     res.pm_count = pm_res.pm_dict;
-    res.private_message_count = pm_res.total_count;
-    res.right_sidebar_private_message_count = pm_res.right_sidebar_count;
+    res.direct_message_count = pm_res.total_count;
+    res.right_sidebar_direct_message_count = pm_res.right_sidebar_count;
     res.home_unread_messages += pm_res.total_count;
 
     return res;
@@ -816,7 +816,7 @@ export function calculate_notifiable_count(res) {
         // DESKTOP_ICON_COUNT_DISPLAY_NOTIFIABLE
         new_message_count =
             res.mentioned_message_count +
-            res.private_message_count -
+            res.direct_message_count -
             // Avoid double-counting direct messages containing mentions
             res.direct_message_with_mention_count;
     } else if (no_notifications) {

web/src/unread_ui.js

@@ -94,7 +94,7 @@ export function update_unread_counts(skip_animations = false) {
     // 1:1 direct messages there.
     set_count_toggle_button(
         $("#userlist-toggle-unreadcount"),
-        res.right_sidebar_private_message_count,
+        res.right_sidebar_direct_message_count,
     );
 }
 

web/tests/pm_list.test.js

@@ -23,18 +23,18 @@ run_test("update_dom_with_unread_counts", () => {
     $private_li.set_find_results(".unread_count", $total_count);
 
     counts = {
-        private_message_count: 10,
+        direct_message_count: 10,
     };
 
-    pm_list.set_count(counts.private_message_count);
+    pm_list.set_count(counts.direct_message_count);
     assert.equal($total_count.text(), "10");
     assert.equal($total_count.hasClass("hide"), false);
 
     counts = {
-        private_message_count: 0,
+        direct_message_count: 0,
     };
 
-    pm_list.set_count(counts.private_message_count);
+    pm_list.set_count(counts.direct_message_count);
     assert.equal($total_count.text(), "");
     assert.equal($total_count.hasClass("hide"), true);
 });

web/tests/unread.test.js

@@ -43,7 +43,7 @@ const social = {
 stream_data.add_sub(social);
 
 function assert_zero_counts(counts) {
-    assert.equal(counts.private_message_count, 0);
+    assert.equal(counts.direct_message_count, 0);
     assert.equal(counts.home_unread_messages, 0);
     assert.equal(counts.mentioned_message_count, 0);
     assert.equal(counts.stream_count.size, 0);
@@ -387,7 +387,7 @@ test("phantom_messages", () => {
 
 test("private_messages", () => {
     let counts = unread.get_counts();
-    assert.equal(counts.private_message_count, 0);
+    assert.equal(counts.direct_message_count, 0);
 
     const message = {
         id: 15,
@@ -399,12 +399,12 @@ test("private_messages", () => {
     unread.process_loaded_messages([message]);
 
     counts = unread.get_counts();
-    assert.equal(counts.private_message_count, 1);
+    assert.equal(counts.direct_message_count, 1);
     assert.equal(counts.pm_count.get("999"), 1);
     test_notifiable_count(counts.home_unread_messages, 1);
     unread.mark_as_read(message.id);
     counts = unread.get_counts();
-    assert.equal(counts.private_message_count, 0);
+    assert.equal(counts.direct_message_count, 0);
     assert.equal(counts.pm_count.get("999"), 0);
     test_notifiable_count(counts.home_unread_messages, 0);
 });
@@ -462,7 +462,7 @@ test("private_messages", () => {
     assert.deepEqual(unread.get_msg_ids_for_private(), []);
     assert.deepEqual(unread.get_all_msg_ids(), []);
     const counts = unread.get_counts();
-    assert.equal(counts.private_message_count, 0);
+    assert.equal(counts.direct_message_count, 0);
     test_notifiable_count(counts.home_unread_messages, 0);
 });
 
@@ -791,6 +791,6 @@ test("errors", () => {
 
     unread.mark_as_read(message.id);
     const counts = unread.get_counts();
-    assert.equal(counts.private_message_count, 0);
+    assert.equal(counts.direct_message_count, 0);
     test_notifiable_count(counts.home_unread_messages, 0);
 });