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use crate::masks::Masks;
use crate::yearinfo::*;
use chrono::prelude::*;
use chrono::{DateTime, Duration};
struct RRule {}
#[derive(Debug)]
pub struct MonthInfo {
pub lastyear: isize,
pub lastmonth: usize,
pub nwdaymask: Vec<isize>,
}
pub fn rebuild_month(
year: isize,
month: usize,
yearlen: usize,
mrange: &Vec<usize>,
wdaymask: &Vec<usize>,
options: &ParsedOptions,
) -> MonthInfo {
let mut result = MonthInfo {
lastyear: year,
lastmonth: month,
nwdaymask: vec![],
};
let mut ranges: Vec<(isize, isize)> = vec![];
if options.freq == Frequenzy::YEARLY {
if options.bymonth.is_empty() {
ranges = vec![(0, year as isize)];
} else {
for j in 0..options.bymonth.len() {
let m = options.bymonth[j];
ranges.push((mrange[m - 1] as isize, mrange[m] as isize))
}
}
} else if options.freq == Frequenzy::MONTHLY {
ranges.push((mrange[month - 1] as isize, mrange[month] as isize));
}
if ranges.is_empty() {
return result;
}
// Weekly frequency won't get here, so we may not
// care about cross-year weekly periods.
result.nwdaymask = vec![0; yearlen];
for j in 0..ranges.len() {
let rang = ranges[j];
let first = rang.0;
let last = rang.1 - 1;
for k in 0..options.bynweekday.len() {
let mut i: isize;
let wday = options.bynweekday[k][0];
let n = options.bynweekday[k][1];
if n < 0 {
i = last + (n + 1) * 7;
i -= pymod(wdaymask[i as usize] as isize - wday, 7);
} else {
i = first + (n - 1) * 7;
i += pymod(7 - wdaymask[i as usize] as isize + wday, 7);
}
if first <= i && i <= last {
result.nwdaymask[i as usize] = 1;
}
}
}
result
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn it_works() {
let options = ParsedOptions {
freq: Frequenzy::YEARLY,
interval: 1,
count: Some(10),
until: None,
tzid: None,
dtstart: Utc.ymd(2020, 1, 1).and_hms(0, 0, 0),
wkst: 0,
bysetpos: vec![],
bymonth: vec![],
bymonthday: vec![],
bynmonthday: vec![],
byyearday: vec![],
byweekno: vec![1],
byweekday: vec![],
byhour: vec![],
byminute: vec![],
bysecond: vec![],
bynweekday: vec![],
};
let res = rebuild_month(2020, 1, 366, &vec![], &vec![], &options);
println!("Res: {:?}", res);
assert_eq!(2 + 2, 4);
}
}
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