ssb: Correctness around loading messages by time range.

apps/ssb.json

@@ -1,5 +1,5 @@
 {
 	"type": "tildefriends-app",
 	"emoji": "🐌",
-	"previous": "&3Y03Nv5WhnlghnQ1Wqu9z2460JFYumMEUfGDr/0OWfs=.sha256"
+	"previous": "&LjDy/+vpRFc6dXPOk/+kjlppVMLmKaB6TIZS3WHqoQ8=.sha256"
 }

apps/ssb/tf-tab-news-feed.js

@@ -51,7 +51,7 @@ class TfTabNewsFeedElement extends LitElement {
 					JOIN json_each(?2) AS following ON messages.author = following.value
 					WHERE
 						messages.author != ?1 AND
-						messages.timestamp > ?3 AND
+						messages.timestamp >= ?3 AND
 						messages.timestamp < ?4
 					ORDER BY timestamp DESC limit 20
 				`,
@@ -69,16 +69,18 @@ class TfTabNewsFeedElement extends LitElement {
 					WITH mine AS (SELECT rowid, id, previous, author, sequence, timestamp, hash, json(content) AS content, signature
 						FROM messages
 						WHERE messages.author = ?
-						ORDER BY sequence DESC
+						ORDER BY sequence DESC)
-						LIMIT 20)
 					SELECT messages.rowid, messages.id, messages.previous, messages.author, messages.sequence, messages.timestamp, messages.hash, json(messages.content) AS content, messages.signature
 						FROM mine
 						JOIN messages_refs ON mine.id = messages_refs.ref
 						JOIN messages ON messages_refs.message = messages.id
 					UNION
 					SELECT * FROM mine
+					WHERE
+						mine.timestamp >= ?2 AND
+						mine.timestamp < ?3
 				`,
-				[this.hash.substring(1)]
+				[this.hash.substring(1), start_time, end_time]
 			);
 			return r;
 		} else if (this.hash.startsWith('#%')) {
@@ -106,7 +108,7 @@ class TfTabNewsFeedElement extends LitElement {
 							FROM messages
 							JOIN json_each(?) AS following ON messages.author = following.value
 							WHERE
-								messages.timestamp > ? AND
+								messages.timestamp >= ? AND
 								messages.timestamp < ? AND
 								messages.content ->> 'channel' = ?
 							ORDER BY messages.timestamp DESC)
@@ -126,7 +128,7 @@ class TfTabNewsFeedElement extends LitElement {
 							JOIN json_each(?1) AS following ON messages.author = following.value
 							JOIN json_tree(messages.content, '$.mentions') AS mention ON mention.value = '#' || ?4
 							WHERE
-								messages.timestamp > ?2 AND
+								messages.timestamp >= ?2 AND
 								messages.timestamp < ?3
 						UNION
 						SELECT news.* FROM news
@@ -152,7 +154,7 @@ class TfTabNewsFeedElement extends LitElement {
 						WITH news AS (SELECT messages.rowid, messages.id, messages.previous, messages.author, messages.sequence, messages.timestamp, messages.hash, json(messages.content) AS content, messages.signature
 						FROM messages
 						JOIN json_each(?) AS following ON messages.author = following.value
-						WHERE messages.timestamp > ? AND messages.timestamp < ?
+						WHERE messages.timestamp >= ? AND messages.timestamp < ?
 						ORDER BY messages.timestamp DESC)
 						SELECT messages.rowid, messages.id, messages.previous, messages.author, messages.sequence, messages.timestamp, messages.hash, json(messages.content) AS content, messages.signature
 							FROM news
@@ -178,6 +180,19 @@ class TfTabNewsFeedElement extends LitElement {
 		}
 	}
 
+	update_time_range_from_messages(messages) {
+		this.time_range = [
+			messages.reduce(
+				(accumulator, current) => Math.min(accumulator, current.timestamp),
+				this.time_range[0]
+			),
+			messages.reduce(
+				(accumulator, current) => Math.max(accumulator, current.timestamp),
+				this.time_range[1]
+			),
+		];
+	}
+
 	async load_more() {
 		this.loading++;
 		this.loading_canceled = false;
@@ -187,7 +202,12 @@ class TfTabNewsFeedElement extends LitElement {
 				let last_start_time = this.start_time;
 				this.start_time = last_start_time - 7 * 24 * 60 * 60 * 1000;
 				more = await this.fetch_messages(this.start_time, last_start_time);
-				this.time_range = [this.start_time, this.time_range[1]];
+				this.update_time_range_from_messages(
+					more.filter(
+						(x) =>
+							x.timestamp >= this.start_time && x.timestamp < last_start_time
+					)
+				);
 			}
 			this.messages = await this.decrypt([...more, ...this.messages]);
 		} finally {
@@ -232,7 +252,11 @@ class TfTabNewsFeedElement extends LitElement {
 		try {
 			messages = await this.fetch_messages(this.time_range[1], end_time);
 			messages = await this.decrypt(messages);
-			this.time_range = [this.time_range[0], end_time];
+			this.update_time_range_from_messages(
+				messages.filter(
+					(x) => x.timestamp >= this.time_range[1] && x.timestamp < end_time
+				)
+			);
 		} finally {
 			this.loading--;
 		}
@@ -256,6 +280,13 @@ class TfTabNewsFeedElement extends LitElement {
 				this.time_range[0],
 				this.time_range[1]
 			);
+			this.update_time_range_from_messages(
+				messages.filter(
+					(x) =>
+						x.timestamp >= this.time_range[0] &&
+						x.timestamp < this.time_range[1]
+				)
+			);
 			messages = await this.decrypt(messages);
 			if (!messages.length) {
 				let more = [];
@@ -263,8 +294,12 @@ class TfTabNewsFeedElement extends LitElement {
 					let last_start_time = start_time;
 					start_time = last_start_time - 7 * 24 * 60 * 60 * 1000;
 					more = await this.fetch_messages(start_time, last_start_time);
+					this.update_time_range_from_messages(
+						more.filter(
+							(x) => x.timestamp >= start_time && x.timestamp < last_start_time
+						)
+					);
 				}
-				this.time_range = [start_time, this.time_range[1]];
 				messages = await this.decrypt([...more, ...this.messages]);
 			}
 		} finally {
@@ -305,8 +340,10 @@ class TfTabNewsFeedElement extends LitElement {
 			this.load_messages();
 		}
 		let more;
-		if (this.hash == '#@' ||
+		if (
-			(!this.hash.startsWith('#@') && !this.hash.startsWith('#%'))) {
+			this.hash == '#@' ||
+			(!this.hash.startsWith('#@') && !this.hash.startsWith('#%'))
+		) {
 			more = html`
 				<p>
 					<button class="w3-button w3-theme-d1" @click=${this.mark_all_read}>