121 lines
3.7 KiB
Rust
121 lines
3.7 KiB
Rust
use std::convert::TryFrom;
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use std::io::Write;
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use clap::ArgMatches;
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use chrono::{DateTime, Utc, Local, Duration, Weekday, Datelike};
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use regex::Regex;
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use crate::error::{Result, Error};
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use crate::database::Database;
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use crate::formatters::Formatter;
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use crate::config::{Config, WeekDay};
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use crate::regex::parse_regex;
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use crate::timeparse::parse_time;
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use super::{Command, display::{Sheet, entries_for_display}};
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trait AsNum {
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fn as_num(&self) -> i64;
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}
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impl AsNum for WeekDay {
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fn as_num(&self) -> i64 {
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match &self {
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WeekDay::Monday => 1,
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WeekDay::Tuesday => 2,
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WeekDay::Wednesday => 3,
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WeekDay::Thursday => 4,
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WeekDay::Friday => 5,
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WeekDay::Saturday => 6,
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WeekDay::Sunday => 7,
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}
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}
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}
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impl AsNum for Weekday {
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fn as_num(&self) -> i64 {
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match &self {
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Weekday::Mon => 1,
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Weekday::Tue => 2,
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Weekday::Wed => 3,
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Weekday::Thu => 4,
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Weekday::Fri => 5,
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Weekday::Sat => 6,
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Weekday::Sun => 7,
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}
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}
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}
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/// Given a local datetime, returns the time of the previous week_start's start
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fn prev_day(now: DateTime<Local>, week_start: WeekDay) -> DateTime<Utc> {
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let begining = match now.weekday().as_num() - week_start.as_num() {
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num if num == 0 => now,
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num if num > 0 => now - Duration::days(num),
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num if num < 0 => now - Duration::days(7 - num.abs()),
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_ => unreachable!(),
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};
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begining.date().and_hms(0, 0, 0).with_timezone(&Utc)
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}
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#[derive(Default)]
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pub struct Args {
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ids: bool,
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end: Option<DateTime<Utc>>,
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format: Formatter,
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grep: Option<Regex>,
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sheet: Option<Sheet>,
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}
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impl<'a> TryFrom<&'a ArgMatches<'a>> for Args {
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type Error = Error;
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fn try_from(matches: &'a ArgMatches) -> Result<Args> {
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Ok(Args {
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ids: matches.is_present("ids"),
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end: matches.value_of("end").map(|s| parse_time(s)).transpose()?,
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format: matches.value_of("format").unwrap().parse()?,
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grep: matches.value_of("grep").map(parse_regex).transpose()?,
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sheet: matches.value_of("sheet").map(|s| s.parse()).transpose()?,
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})
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}
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}
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pub struct WeekCommand { }
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impl<'a> Command<'a> for WeekCommand {
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type Args = Args;
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fn handle<D, O, E>(args: Self::Args, db: &mut D, out: &mut O, err: &mut E, config: &Config, now: DateTime<Utc>) -> Result<()>
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where
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D: Database,
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O: Write,
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E: Write,
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{
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let start = prev_day(now.with_timezone(&Local), config.week_start);
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entries_for_display(Some(start), args.end, args.sheet, db, out, err, args.format, args.ids, args.grep, now)
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}
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}
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#[cfg(test)]
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mod tests {
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use super::*;
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use chrono::TimeZone;
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#[test]
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fn test_prev_day() {
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// starting a saturday
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let now = Local.ymd(2021, 7, 10).and_hms(18, 31, 0);
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assert_eq!(prev_day(now, WeekDay::Monday), Local.ymd(2021, 7, 5).and_hms(0, 0, 0).with_timezone(&Utc));
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assert_eq!(prev_day(now, WeekDay::Tuesday), Local.ymd(2021, 7, 6).and_hms(0, 0, 0).with_timezone(&Utc));
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assert_eq!(prev_day(now, WeekDay::Wednesday), Local.ymd(2021, 7, 7).and_hms(0, 0, 0).with_timezone(&Utc));
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assert_eq!(prev_day(now, WeekDay::Thursday), Local.ymd(2021, 7, 8).and_hms(0, 0, 0).with_timezone(&Utc));
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assert_eq!(prev_day(now, WeekDay::Friday), Local.ymd(2021, 7, 9).and_hms(0, 0, 0).with_timezone(&Utc));
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assert_eq!(prev_day(now, WeekDay::Saturday), Local.ymd(2021, 7, 10).and_hms(0, 0, 0).with_timezone(&Utc));
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assert_eq!(prev_day(now, WeekDay::Sunday), Local.ymd(2021, 7, 4).and_hms(0, 0, 0).with_timezone(&Utc));
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}
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}
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