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use nucleo_matcher::{
pattern::{CaseMatching, Normalization, Pattern},
Config, Matcher,
};
use std::collections::HashMap;
// Stringify inner Vec<String> by joining/concat
fn convert_to_string(inner_vec: &Vec<String>) -> String {
inner_vec.join(" ")
}
// Return a filtered entry list
pub fn search_entry_list(search_pattern: &str, orig_list: Vec<Vec<String>>) -> Vec<Vec<String>> {
// Create a hashmap to connect stingified entry with entry vec
let mut entry_string_hm: HashMap<String, Vec<String>> = HashMap::new();
// Convert all entries to string and insert them into the hashmap
// next to the original inner Vec<String> of the entry list
for entry in orig_list {
entry_string_hm.insert(convert_to_string(&entry), entry);
}
// Set up matcher (TODO: One time needed only, move to higher level)
let mut matcher = Matcher::new(Config::DEFAULT);
// Filter the stringified entries and collect them into a vec
let filtered_matches: Vec<String> = {
let matches = Pattern::parse(search_pattern, CaseMatching::Ignore, Normalization::Smart)
.match_list(entry_string_hm.keys(), &mut matcher);
matches.into_iter().map(|f| f.0.to_string()).collect()
};
// Create filtered entry list and push the inner entry vec's to it
// Use the filtered stringified hm-key as index
let mut filtered_list: Vec<Vec<String>> = Vec::new();
for m in filtered_matches {
filtered_list.push(entry_string_hm[&m].to_owned());
}
filtered_list
}
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