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use std::io;
use std::io::BufReader;
use std::fs::File;
use std::path::Path;
use std::num::ParseIntError;
use ical::parser;
use ical::IcalParser;
use event::{Event, Date};
pub fn parse<P: AsRef<Path>>(ics: P) -> Result<Vec<Event>, IcsError> {
let buf = BufReader::new(File::open(ics)?);
let reader = IcalParser::new(buf);
let mut events = Vec::new();
for line in reader {
for ev in line?.events {
let mut event = Event::new();
for property in ev.properties {
let value = property.value.unwrap_or("".to_string());
let mut time_zone = "".to_string();
for (param, value) in property.params.unwrap_or(vec![]) {
if param == "TZID" && value.len() > 0 {
time_zone = value[0].clone();
}
}
match property.name.as_ref() {
"SUMMARY" => event.summary = value,
"LOCATION" => event.location = value,
"DESCRIPTION" => event.description = value,
"STATUS" => event.status = value.parse()?,
"DTSTART" => event.start = Date::parse(value, time_zone)?,
"DTEND" => event.end = Date::parse(value, time_zone)?,
_ => (),
};
}
events.push(event);
}
}
events.sort_by(|a, b| a.start.cmp(&b.start));
Ok(events)
}
#[derive(Debug)]
pub enum IcsError {
IoError(io::Error),
IcalError(parser::errors::Error),
IntError(ParseIntError),
StatusError,
}
impl From<io::Error> for IcsError {
fn from(err: io::Error) -> IcsError {
IcsError::IoError(err)
}
}
impl From<parser::errors::Error> for IcsError {
fn from(err: parser::errors::Error) -> IcsError {
IcsError::IcalError(err)
}
}
impl From<ParseIntError> for IcsError {
fn from(err: ParseIntError) -> IcsError {
IcsError::IntError(err)
}
}
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