From 8b628e3cda3753ab574456afd1a34c4a6106a264 Mon Sep 17 00:00:00 2001 From: Julio Biason Date: Thu, 7 May 2020 19:42:54 -0300 Subject: [PATCH] Listing events --- README.md | 1 + src/eventlist/event.rs | 35 +++++++++++++++++++++++++++++++++++ src/eventlist/eventlist.rs | 34 +++++++++++++++++++++++++++++++++- src/main.rs | 5 ++++- 4 files changed, 73 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index f930916..6c9a3dc 100644 --- a/README.md +++ b/README.md @@ -21,6 +21,7 @@ tell you that you have 15 days up to it. ## TODO - [x] Add unique identifier for each event +- [x] List events - [ ] Removing events - [ ] Replace `dbg!` with [env_logger](https://crates.io/crates/env_logger) (reasoning: Although `dbg!` is nice and dandy, it can't be disabled, and diff --git a/src/eventlist/event.rs b/src/eventlist/event.rs index 1d1f736..0462205 100644 --- a/src/eventlist/event.rs +++ b/src/eventlist/event.rs @@ -16,7 +16,11 @@ along with this program. If not, see . */ +use std::convert::From; +use std::fmt; + use chrono::prelude::*; +use chrono::DateTime; use serde_derive::Deserialize; use serde_derive::Serialize; use uuid::Uuid; @@ -41,6 +45,15 @@ pub enum EventDateType { AtTime(Date, Time), } +impl From<&EventDateType> for DateTime { + fn from(origin: &EventDateType) -> Self { + match origin { + EventDateType::AllDay(d) => Utc.ymd(d.year, d.month, d.day).and_hms(0, 0, 0), + _ => Utc.ymd(1970, 1, 1).and_hms(0, 0, 0), + } + } +} + #[derive(Serialize, Deserialize, Debug)] pub struct Event { id: String, @@ -66,4 +79,26 @@ impl Event { panic!("Failed to parse the date"); } } + + pub fn eta(&self) -> Option { + let now = Utc::now(); + let to: DateTime = (&self.due).into(); + let eta = to - now; + Some(format!("{}d", eta.num_days())) + } +} + +impl fmt::Display for Event { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { + write!( + f, + "{:8} - {:>6} - {}", + self.id, + match self.eta() { + Some(x) => x, + None => "".into(), + }, + self.description + ) + } } diff --git a/src/eventlist/eventlist.rs b/src/eventlist/eventlist.rs index 4b0145b..62e0c03 100644 --- a/src/eventlist/eventlist.rs +++ b/src/eventlist/eventlist.rs @@ -29,7 +29,13 @@ static FILENAME: &str = "events.toml"; #[derive(Serialize, Deserialize, Debug)] pub struct EventList { - events: Vec, + pub events: Vec, +} + +pub struct EventListIterator<'a> { + index: usize, + max: usize, + list: &'a Vec, } impl EventList { @@ -59,3 +65,29 @@ impl EventList { } } } + +impl<'a> IntoIterator for &'a EventList { + type Item = &'a Event; + type IntoIter = EventListIterator<'a>; + + fn into_iter(self) -> Self::IntoIter { + EventListIterator { + index: 0, + max: self.events.len(), + list: &self.events, + } + } +} + +impl<'a> Iterator for EventListIterator<'a> { + type Item = &'a Event; + + fn next(&mut self) -> Option<&'a Event> { + if self.index >= self.max { + None + } else { + self.index += 1; + Some(&self.list[self.index - 1]) + } + } +} diff --git a/src/main.rs b/src/main.rs index 8010188..55378d5 100644 --- a/src/main.rs +++ b/src/main.rs @@ -33,7 +33,10 @@ fn main() { } fn list() { - unimplemented!() + let event_list = EventList::load(); + for record in event_list.into_iter() { + println!("{}", record); + } } fn add_with_date(description: &str, date: &str) {