62 lines
1.8 KiB
Rust
62 lines
1.8 KiB
Rust
use std::collections::HashMap;
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use regex::Regex;
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use crate::database::{DatabaseClient, DatabaseError};
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use crate::models::emojis::queries::get_local_emojis_by_names;
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use crate::models::emojis::types::DbEmoji;
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use super::links::is_inside_code_block;
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// See also: EMOJI_NAME_RE in models::emojis::validators
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const SHORTCODE_SEARCH_RE: &str = r"(?m):(?P<name>[\w.]+):";
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/// Finds emoji shortcodes in text
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fn find_shortcodes(text: &str) -> Vec<String> {
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let shortcode_re = Regex::new(SHORTCODE_SEARCH_RE)
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.expect("regex should be valid");
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let mut emoji_names = vec![];
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for caps in shortcode_re.captures_iter(text) {
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let name_match = caps.name("name").expect("should have name group");
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if is_inside_code_block(&name_match, text) {
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// Ignore shortcodes inside code blocks
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continue;
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};
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let name = caps["name"].to_string();
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if !emoji_names.contains(&name) {
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emoji_names.push(name);
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};
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};
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emoji_names
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}
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pub async fn find_emojis(
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db_client: &impl DatabaseClient,
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text: &str,
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) -> Result<HashMap<String, DbEmoji>, DatabaseError> {
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let emoji_names = find_shortcodes(text);
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// If shortcode doesn't exist in database, it is ignored
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let emojis = get_local_emojis_by_names(db_client, &emoji_names).await?;
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let mut emoji_map: HashMap<String, DbEmoji> = HashMap::new();
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for emoji in emojis {
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emoji_map.insert(emoji.emoji_name.clone(), emoji);
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};
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Ok(emoji_map)
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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const TEXT_WITH_EMOJIS: &str = "@user1@server1 text :emoji_name: :abc:";
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#[test]
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fn test_find_shortcodes() {
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let emoji_names = find_shortcodes(TEXT_WITH_EMOJIS);
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assert_eq!(emoji_names, vec![
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"emoji_name",
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"abc",
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]);
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}
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}
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