show the count of 'more replies'. (#740)

Co-authored-by: Daniel Valentine <daniel@vielle.ws>
Co-authored-by: Matthew Esposito <matt@matthew.science>

src/post.rs

@@ -107,6 +107,13 @@ fn parse_comments(json: &serde_json::Value, post_link: &str, post_author: &str,
 
 			let score = data["score"].as_i64().unwrap_or(0);
 
+			// The JSON API only provides comments up to some threshold.
+			// Further comments have to be loaded by subsequent requests.
+			// The "kind" value will be "more" and the "count"
+			// shows how many more (sub-)comments exist in the respective nesting level.
+			// Note that in certain (seemingly random) cases, the count is simply wrong.
+			let more_count = data["count"].as_i64().unwrap_or_default();
+
 			// If this comment contains replies, handle those too
 			let replies: Vec<Comment> = if data["replies"].is_object() {
 				parse_comments(&data["replies"], post_link, post_author, highlighted_comment, filters, req)
@@ -177,6 +184,7 @@ fn parse_comments(json: &serde_json::Value, post_link: &str, post_author: &str,
 				awards,
 				collapsed,
 				is_filtered,
+				more_count,
 				prefs: Preferences::new(req),
 			}
 		})

src/utils.rs

@@ -377,6 +377,7 @@ pub struct Comment {
 	pub awards: Awards,
 	pub collapsed: bool,
 	pub is_filtered: bool,
+	pub more_count: i64,
 	pub prefs: Preferences,
 }
 

templates/comment.html

@@ -1,7 +1,7 @@
 {% import "utils.html" as utils %}
 
 {% if kind == "more" && parent_kind == "t1" %}
-<a class="deeper_replies" href="{{ post_link }}{{ parent_id }}">&rarr; More replies</a>
+<a class="deeper_replies" href="{{ post_link }}{{ parent_id }}">&rarr; More replies ({{ more_count }})</a>
 {% else if kind == "t1" %}
 <div id="{{ id }}" class="comment">
 	<div class="comment_left">