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@ -1,10 +1,12 @@
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use std::str::FromStr;
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use std::mem::replace;
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use std::io::Read;
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use std::sync::RwLock;
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use std::collections::{HashMap, VecDeque};
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use chrono::offset::Utc;
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use chrono::{Duration, offset::Utc};
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use reqwest::header::{IF_NONE_MATCH, IF_MODIFIED_SINCE, ETAG, LAST_MODIFIED, USER_AGENT};
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use diesel::{Connection, pg::PgConnection, prelude::*};
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use rrule::RRule;
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use libticker::{
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config::{Config, CalendarOptions},
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@ -23,30 +25,71 @@ fn extract_vevent_objs(results: &mut Vec<Object>, mut obj: Object) {
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}
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}
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fn obj_to_event(calendar: String, obj: &Object) -> Option<Event> {
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const RRULE_LOOKBACK: i64 = 30;
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const RRULE_LOOKAHEAD: i64 = 366;
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fn obj_to_events(calendar: String, obj: &Object) -> Vec<Event> {
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if obj.name != "VEVENT" {
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return None;
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return vec![];
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}
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let dtstart: Timestamp = obj.get("DTSTART")?;
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let (dtstart, dtstart_str): (Timestamp, &str) = match (obj.get("DTSTART"), obj.get("DTSTART")) {
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(Some(dtstart), Some(dtstart_str)) => (dtstart, dtstart_str),
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_ => return vec![],
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};
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let dtstart = dtstart.or_hms(0, 0, 0);
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let dtend: Option<Timestamp> = obj.get("DTEND");
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let dtend = dtend.map(|time| time.or_hms(23, 59, 59));
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let summary = obj.get("SUMMARY")?;
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let id = format!("{}{}{}{}",
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obj.get("UID").unwrap_or(""),
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dtstart,
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obj.get("DTSTAMP").unwrap_or(""),
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obj.get("RECURRENCE-ID").unwrap_or(""));
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// TODO: DESCRIPTION
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Some(Event {
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calendar, id,
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dtstart,
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dtend,
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summary,
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location: obj.get("LOCATION"),
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url: obj.get("URL"),
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})
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let summary: &str = match obj.get("SUMMARY") {
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Some(summary) => summary,
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None => return vec![],
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};
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let uid = obj.get("UID").unwrap_or("");
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let dtstamp = obj.get("DTSTAMP").unwrap_or("");
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let location = obj.get("LOCATION");
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let url = obj.get("URL");
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let generate_event = |dtstart| {
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let id = format!("{}{}{}", uid, dtstart, dtstamp);
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Event {
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calendar: calendar.clone(),
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id,
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dtstart,
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dtend,
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summary: summary.to_owned(),
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location: location.clone(),
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url: url.clone(),
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}
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};
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let rrule_str: Option<&str> = obj.get("rrule");
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let rrule = rrule_str.and_then(
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|rrule_str| RRule::from_str(
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&format!("DTSTART:{}\nRRULE:{}", dtstart_str, rrule_str)
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).map_err(|e| println!("Error parsing RRULE: {}", e))
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.ok()
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);
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match rrule {
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Some(rrule) => {
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let now = Utc::now();
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let start = now - Duration::days(RRULE_LOOKBACK);
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let end = now + Duration::days(RRULE_LOOKAHEAD);
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println!("rrule {}:\n{:?}", rrule_str.unwrap_or(""), rrule.into_iter()
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.skip_while(|d| *d < start)
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.take_while(|d| *d <= end)
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.map(|dtstart| dtstart.naive_utc())
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.collect::<Vec<_>>()
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);
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rrule.into_iter()
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.skip_while(|d| *d < start)
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.take_while(|d| *d <= end)
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.map(|dtstart| dtstart.naive_utc())
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.map(generate_event)
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.collect()
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}
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None =>
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vec![generate_event(dtstart)],
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}
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}
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pub struct Resources {
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@ -105,13 +148,8 @@ impl Resources {
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let mut objs = vec![];
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extract_vevent_objs(&mut objs, obj);
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for obj in objs {
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if let Some(event) = obj_to_event(cal_id.to_owned(), &obj) {
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for event in obj_to_events(cal_id.to_owned(), &obj) {
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events.insert(event.id.clone(), event);
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} else {
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let dtstart: Option<&str> = obj.get("DTSTART");
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let summary: Option<&str> = obj.get("SUMMARY");
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println!("cannot convert {} {:?} {:?}",
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obj.name, dtstart, summary);
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}
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}
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});
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