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use std::collections::HashMap;
use chrono::NaiveDate;
#[derive(Debug)]
pub struct Habit<T> {
name: String,
stats: HashMap<NaiveDate, T>,
goal: T,
}
impl<T> Habit<T>
where
T: Copy,
{
pub fn new(name: &str, goal: T) -> Habit<T> {
return Habit {
name: name.to_owned(),
stats: HashMap::new(),
goal,
};
}
pub fn get_name(&self) -> String {
return self.name.to_owned();
}
pub fn get_by_date(&self, date: NaiveDate) -> Option<&T> {
self.stats.get(&date)
}
pub fn insert_entry(&mut self, date: NaiveDate, val: T) {
*self.stats.entry(date).or_insert(val) = val;
}
}
impl Habit<bool> {
pub fn toggle(&mut self, date: NaiveDate) {
if let Some(v) = self.stats.get_mut(&date) {
*v ^= true
} else {
self.insert_entry(date, true);
}
}
pub fn reached_goal(&self, date: NaiveDate) -> bool {
*self.get_by_date(date).unwrap_or(&false)
}
}
impl Habit<u32> {
pub fn increment(&mut self, date: NaiveDate) {
if let Some(v) = self.stats.get_mut(&date) {
*v += 1;
} else {
self.insert_entry(date, 1);
}
}
pub fn decrement(&mut self, date: NaiveDate) {
if let Some(v) = self.stats.get_mut(&date) {
if *v > 0 {
*v -= 1;
} else {
*v = 0;
};
}
}
pub fn set(&mut self, date: NaiveDate, val: u32) {
*self.stats.entry(date).or_insert(val) = val;
}
pub fn reached_goal(&self, date: NaiveDate) -> bool {
if let Some(v) = self.get_by_date(date) {
if *v >= self.goal {
return true;
}
}
return false;
}
}
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