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ssb: Add a lookup table of max sequence and timestamp per account.f

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This commit is contained in:
Cory McWilliams 2025-01-22 19:19:50 -05:00
parent c7a8ce7060
commit c728e05032
4 changed files with 27 additions and 22 deletions
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2
apps/ssb.json
View File

@ -1,5 +1,5 @@
{
"type": "tildefriends-app",
"emoji": "🦀",
"previous": "&cnc92v8+8JMxSIvs6vZ6j01rUzyVtKg6zkITqwQ02Lc=.sha256"
"previous": "&dQu+yQ4/be0vcgIZSMKtesQCbH8lVhHcZAEv9+dNknY=.sha256"
}

5
apps/ssb/tf-app.js
View File

@ -402,10 +402,9 @@ class TfElement extends LitElement {
async fetch_user_info(users) {
let info = await tfrpc.rpc.query(
`
SELECT messages.author, MAX(messages.sequence) AS max_seq, MAX(timestamp) AS max_ts FROM messages
SELECT messages_stats.author, messages_stats.max_sequence, messages_stats.max_timestamp AS max_ts FROM messages_stats
JOIN json_each(?) AS following
ON messages.author = following.value
GROUP BY messages.author
ON messages_stats.author = following.value
`,
[JSON.stringify(Object.keys(users))]
);

23
apps/ssb/tf-tab-news-feed.js
View File

@ -190,11 +190,7 @@ class TfTabNewsFeedElement extends LitElement {
UNION
SELECT TRUE AS is_primary, news.* FROM news
`,
[
JSON.stringify(this.following),
start_time,
end_time,
]
[JSON.stringify(this.following), start_time, end_time]
);
}
this.time_loading = undefined;
@ -223,9 +219,7 @@ class TfTabNewsFeedElement extends LitElement {
let last_start_time = this.time_range[0];
more = await this.fetch_messages(null, last_start_time);
this.update_time_range_from_messages(
more.filter(
(x) => x.timestamp < last_start_time
)
more.filter((x) => x.timestamp < last_start_time)
);
this.messages = await this.decrypt([...more, ...this.messages]);
} finally {
@ -315,14 +309,9 @@ class TfTabNewsFeedElement extends LitElement {
let start_time = now - 24 * 60 * 60 * 1000;
this.start_time = start_time;
this.time_range = [this.start_time, now + 24 * 60 * 60 * 1000];
messages = await this.fetch_messages(
null,
this.time_range[1]
);
messages = await this.fetch_messages(null, this.time_range[1]);
this.update_time_range_from_messages(
messages.filter(
(x) => x.timestamp < this.time_range[1]
)
messages.filter((x) => x.timestamp < this.time_range[1])
);
messages = await this.decrypt(messages);
} finally {
@ -330,7 +319,9 @@ class TfTabNewsFeedElement extends LitElement {
}
this.messages = this.merge_messages(this.messages, messages);
this.time_loading = undefined;
console.log(`loading messages done for ${self.whoami} in ${(new Date() - start_time) / 1000}s`);
console.log(
`loading messages done for ${self.whoami} in ${(new Date() - start_time) / 1000}s`
);
}
mark_all_read() {

19
src/ssb.db.c
View File

@ -108,6 +108,20 @@ void tf_ssb_db_init(tf_ssb_t* ssb)
" flags INTEGER,"
" UNIQUE(author, sequence)"
")");
_tf_ssb_db_exec(db,
"CREATE TABLE IF NOT EXISTS messages_stats ("
" author TEXT PRIMARY KEY,"
" max_sequence INTEGER,"
" max_timestamp READ"
")");
_tf_ssb_db_exec(db,
"CREATE TRIGGER IF NOT EXISTS messages_ai_stats AFTER INSERT ON messages BEGIN INSERT INTO messages_stats(author, max_sequence, max_timestamp) VALUES (new.author, "
"new.sequence, new.timestamp) ON CONFLICT DO UPDATE SET max_sequence = MAX(max_sequence, excluded.max_sequence), max_timestamp = MAX(max_timestamp, "
"excluded.max_timestamp); END");
_tf_ssb_db_exec(db,
"CREATE TRIGGER IF NOT EXISTS messages_ad_stats AFTER DELETE ON messages BEGIN UPDATE messages_stats SET max_sequence = (SELECT MAX(messages.sequence) FROM messages WHERE "
"messages.author = old.author), max_timestamp = (SELECT MAX(messages.timestamp) FROM messages WHERE messages.author = old.author); END");
_tf_ssb_db_exec(db, "INSERT OR REPLACE INTO messages_stats (author, max_sequence, max_timestamp) SELECT author, MAX(sequence), MAX(timestamp) FROM messages GROUP BY author");
if (_tf_ssb_db_has_rows(db, "SELECT name FROM pragma_table_info('messages') WHERE name = 'content' AND type == 'TEXT'"))
{
@ -987,8 +1001,9 @@ int tf_ssb_sqlite_authorizer(void* user_data, int action_code, const char* arg0,
break;
case SQLITE_READ:
result = (strcmp(arg0, "blob_wants_view") == 0 || strcmp(arg0, "json_each") == 0 || strcmp(arg0, "json_tree") == 0 || strcmp(arg0, "messages") == 0 ||
strcmp(arg0, "messages_fts") == 0 || strcmp(arg0, "messages_fts_idx") == 0 || strcmp(arg0, "messages_fts_config") == 0 || strcmp(arg0, "messages_refs") == 0 ||
strcmp(arg0, "messages_refs_message_idx") == 0 || strcmp(arg0, "messages_refs_ref_idx") == 0 || strcmp(arg0, "sqlite_master") == 0 || false)
strcmp(arg0, "messages_stats") == 0 || strcmp(arg0, "messages_fts") == 0 || strcmp(arg0, "messages_fts_idx") == 0 ||
strcmp(arg0, "messages_fts_config") == 0 || strcmp(arg0, "messages_refs") == 0 || strcmp(arg0, "messages_refs_message_idx") == 0 ||
strcmp(arg0, "messages_refs_ref_idx") == 0 || strcmp(arg0, "sqlite_master") == 0 || false)
? SQLITE_OK
: SQLITE_DENY;
break;