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Send all new entries in a feed, not just the first

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This commit is contained in:
Mina Brown
2024-11-20 23:29:38 -05:00
parent 713a266f15
commit b014f835b6
3 changed files with 39 additions and 12 deletions
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47
main.c
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@ -1,4 +1,8 @@
#define _GNU_SOURCE
#define _XOPEN_SOURCE
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
@ -38,7 +42,7 @@ struct bot_command {
struct feed_info {
char *title;
char *url;
char *pubDate;
char *last_pubDate;
u64snowflake guild_id;
u64snowflake channel_id;
unsigned timer_id;
@ -48,12 +52,24 @@ struct feed_info {
void feed_info_free(struct feed_info *feed) {
free(feed->title);
free(feed->url);
free(feed->pubDate);
free(feed->last_pubDate);
free(feed);
}
static const char *database_path = "feeds";
// format string for for the time format of pubDate
#define PUBDATE_FMT "%a, %d %b %Y %T %z"
// maybe change the function signature so you can actually do error handling with the result?
static time_t pubDate_to_time_t(char *s) {
struct tm tm;
char *res = strptime(s, PUBDATE_FMT, &tm);
if (!res || !*res) return 0; // invalid time
return mktime(&tm);
}
// default interval for the feed retrieval timer
#define TIMER_INTERVAL 600
@ -61,16 +77,27 @@ static const char *database_path = "feeds";
static void timer_retrieve_feeds(struct discord *client, struct discord_timer *timer) {
struct feed_info *feed = timer->data;
struct mrss_t *mrss_feed;
mrss_t *mrss_feed;
if (mrss_parse_url(feed->url, &mrss_feed)) return; // do nothing on error
// get publication date and check if it is the same (change this later this is lazy and won't get all new feeds)
if (strcmp(mrss_feed->item->pubDate, feed->pubDate)) {
// get publication date of entries send any new ones
time_t last_pubDate_time = pubDate_to_time_t(feed->last_pubDate);
mrss_item_t *item = mrss_feed->item;
bool update_pubDate = false;
while (item && pubDate_to_time_t(item->pubDate) > last_pubDate_time) {
update_pubDate = true;
// Send new entry in the feed
char msg[DISCORD_MAX_MESSAGE_LEN];
snprintf(msg, sizeof(msg), "## %s\n### %s\n%s", mrss_feed->title, mrss_feed->item->title, mrss_feed->item->link);
struct discord_create_message res = { .content = msg };
discord_create_message(client, feed->channel_id, &res, NULL);
discord_create_message(client, feed->channel_id, &res, NULL);
item = item->next;
}
if (update_pubDate) {
free(feed->last_pubDate);
feed->last_pubDate = strdup(mrss_feed->item->pubDate);
}
mrss_free(mrss_feed);
@ -99,13 +126,13 @@ static void bot_command_add(struct discord *client, const struct discord_interac
}
feed->title = mrss_feed->title;
feed->pubDate = mrss_feed->item->pubDate;
feed->last_pubDate = mrss_feed->item->pubDate;
feed->feed_id = rand();
char file_path[PATH_MAX];
// check if we ran out of path
int path_len = snprintf(file_path, sizeof(file_path), "%s/%lu/%lu/%x", database_path, event->guild_id, event->channel_id, feed->feed_id);
// maybe check if we ran out of characters for path?
snprintf(file_path, sizeof(file_path), "%s/%lu/%lu/%x", database_path, event->guild_id, event->channel_id, feed->feed_id);
FILE *fp = fopen(file_path, "w");
if (!fp) {
@ -114,7 +141,7 @@ static void bot_command_add(struct discord *client, const struct discord_interac
feed_info_free(feed);
goto send_msg;
}
fprintf(fp, "title=%s\nurl=%s\npubDate=%s\n", feed->title, feed->url, feed->pubDate);
fprintf(fp, "title=%s\nurl=%s\nlast_pubDate=%s\n", feed->title, feed->url, feed->last_pubDate);
fclose(fp);
// spawn the timer for this feed