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extern crate chrono;
extern crate libc;
use icalwrap::*;
use std::collections::HashMap;
use std::fs;
use std::path::{Path,PathBuf};
use defaults::*;
use utils;
fn add_buckets_for_calendar(buckets: &mut HashMap<String, Vec<String>>, cal: &IcalVCalendar) {
use bucketable::Bucketable;
use bucketable::Merge;
match cal.get_buckets() {
Ok(cal_buckets) => buckets.merge(cal_buckets),
Err(error) => {
warn!("{}", error)
}
}
}
pub fn index_dir(dir: &Path) {
use std::time::Instant;
info!("Recursively indexing '.ics' files in directory: {}", dir.to_string_lossy());
if !dir.exists() {
error!("Directory doesn't exist: {}", dir.to_string_lossy());
return;
}
let now = Instant::now();
let ics_files = get_ics_files(dir);
let buckets = read_buckets(ics_files);
match prepare_index_dir() {
Ok(_) => {
write_index(buckets);
info!("Index written in {}ms", utils::format_duration(&now.elapsed()));
},
Err(error) => error!("{}", error),
}
}
fn get_ics_files(dir: &Path) -> impl Iterator<Item = PathBuf> {
utils::file_iter(dir)
.filter( |path| path.extension().map_or(false, |extension| extension == "ics"))
}
fn read_buckets(ics_files: impl Iterator<Item = PathBuf>) -> HashMap<String, Vec<String>> {
let mut buckets: HashMap<String, Vec<String>> = HashMap::new();
let mut total_files = 0;
for file in ics_files {
match utils::read_file_to_string(&file) {
Ok(content) => {
total_files += 1;
match IcalVCalendar::from_str(&content, Some(file)) {
Ok(mut cal) => add_buckets_for_calendar(&mut buckets, &mut cal),
Err(error) => error!("{}", error)
}
}
Err(error) => error!("{}", error),
}
}
info!("Loaded {} files into {} buckets", total_files, buckets.len());
buckets
}
fn write_index(buckets: HashMap<String, Vec<String>>) {
for (key, val) in buckets.iter() {
let bucketfile = get_indexfile(key);
trace!("Writing bucket: {}", key);
if let Err(error) = utils::write_file(&bucketfile, val.join("\n")) {
error!("{}", error);
return;
}
}
}
fn prepare_index_dir() -> Result<(), std::io::Error> {
let indexdir = get_indexdir();
if indexdir.exists() {
info!("Deleting index directory: {}", indexdir.to_string_lossy());
fs::remove_dir_all(&indexdir)?
}
info!("Creating index directory: {}", indexdir.to_string_lossy());
fs::create_dir(&indexdir)?;
Ok(())
}
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