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pub use gregorian::Date;
pub use gregorian::DateParseError;
use super::hours::{Hours, HoursParseError};
#[derive(Clone, Debug, Eq, PartialEq, Ord, PartialOrd, Hash)]
pub struct Entry {
pub date: Date,
pub hours: Hours,
pub tags: Vec<String>,
pub description: String,
}
impl Entry {
pub fn from_bytes(data: &[u8]) -> Result<Self, EntryParseError> {
let data = std::str::from_utf8(data).map_err(|_| EntryParseError::InvalidUtf8)?;
Self::from_str(data)
}
pub fn from_str(data: &str) -> Result<Self, EntryParseError> {
let mut fields = data.splitn(3, ',');
let date = fields.next().unwrap().trim();
let hours = fields.next().ok_or(InvalidEntrySyntax::new(data))?.trim();
let mut description = fields.next().ok_or(InvalidEntrySyntax::new(data))?.trim();
let date : Date = date.parse()?;
let hours = Hours::from_str(hours)?;
let mut tags = Vec::new();
while description.starts_with('[') {
let end = description.find(']').ok_or_else(|| UnclosedTag { data: description.to_string() })?;
tags.push(description[1..end].to_string());
description = &description[end + 1..].trim();
}
Ok(Self {
date,
hours,
tags,
description: description.to_string(),
})
}
}
impl std::fmt::Display for Entry {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "{}, {}, ", self.date, self.hours)?;
for tag in &self.tags {
write!(f, "[{}] ", tag)?;
}
write!(f, "{}", self.description)?;
Ok(())
}
}
#[derive(Clone, Debug)]
pub enum EntryParseError {
InvalidUtf8,
InvalidEntrySyntax(InvalidEntrySyntax),
DateParseError(DateParseError),
HoursParseError(HoursParseError),
UnclosedTag(UnclosedTag),
}
#[derive(Clone, Debug)]
pub struct InvalidEntrySyntax {
data: String,
}
#[derive(Clone, Debug)]
pub struct UnclosedTag {
data: String,
}
impl InvalidEntrySyntax {
fn new(data: impl Into<String>) -> Self {
Self { data: data.into() }
}
}
impl From<InvalidEntrySyntax> for EntryParseError {
fn from(other: InvalidEntrySyntax) -> Self {
EntryParseError::InvalidEntrySyntax(other)
}
}
impl From<DateParseError> for EntryParseError {
fn from(other: DateParseError) -> Self {
EntryParseError::DateParseError(other)
}
}
impl From<HoursParseError> for EntryParseError {
fn from(other: HoursParseError) -> Self {
EntryParseError::HoursParseError(other)
}
}
impl From<UnclosedTag> for EntryParseError {
fn from(other: UnclosedTag) -> Self {
EntryParseError::UnclosedTag(other)
}
}
impl std::fmt::Display for EntryParseError {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
match self {
Self::InvalidUtf8 => write!(f, "invalid UTF-8 in entry"),
Self::InvalidEntrySyntax(e) => write!(f, "{}", e),
Self::DateParseError(e) => write!(f, "{}", e),
Self::HoursParseError(e) => write!(f, "{}", e),
Self::UnclosedTag(e) => write!(f, "{}", e),
}
}
}
impl std::fmt::Display for InvalidEntrySyntax {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "invalid syntax: expected \"date, hours, description\", got {:?}", self.data)
}
}
impl std::fmt::Display for UnclosedTag {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
write!(f, "invalid syntax: unclosed tag in description: {:?}", self.data)
}
}
#[cfg(test)]
#[test]
fn test_parse_entry_ok() {
use assert2::assert;
let parsed = Entry::from_str("2020-01-02, 10h12m, [one][two] [three] goofing around");
assert!(let Ok(_) = parsed);
let parsed = parsed.unwrap();
assert!(parsed.date.year() == 2020);
assert!(parsed.date.month() == gregorian::Month::January);
assert!(parsed.date.day() == 2);
assert!(parsed.date.day() == 2);
assert!(parsed.hours.total_minutes() == 612);
assert!(parsed.tags == &["one", "two", "three"]);
assert!(parsed.description == "goofing around");
}
#[cfg(test)]
#[test]
fn test_parse_not_ok() {
use assert2::assert;
assert!(let Err(EntryParseError::InvalidEntrySyntax(_)) = Entry::from_str("20m, stabbing co-workers"));
assert!(let Err(EntryParseError::DateParseError(_)) = Entry::from_str("when was this again?, 1h30m, swapping production and test environment"));
assert!(let Err(EntryParseError::HoursParseError(_)) = Entry::from_str("2020-01-01, 17hhh20mmm, wrokking onnnn new yeaarss *hiccup*"));
}