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use std::default::Default;
use std::f64;
use std::fs::{File, OpenOptions};
use std::io::prelude::*;
use std::path::PathBuf;
use std::sync::mpsc::channel;
use std::time::Duration;
use chrono::Local;
use cursive::direction::Absolute;
use cursive::Vec2;
use notify::{watcher, RecursiveMode, Watcher};
use crate::command::{Command, CommandLineError};
use crate::habit::{Bit, Count, HabitWrapper, TrackEvent, ViewMode};
use crate::utils;
use crate::CONFIGURATION;
use crate::app::{App, Message, MessageKind, StatusLine};
impl App {
pub fn new() -> Self {
let (tx, rx) = channel();
let mut watcher = watcher(tx, Duration::from_secs(1)).unwrap();
watcher
.watch(utils::auto_habit_file(), RecursiveMode::Recursive)
.unwrap_or_else(|e| {
panic!("Unable to start file watcher: {}", e);
});
return App {
habits: vec![],
focus: 0,
_file_watcher: watcher,
file_event_recv: rx,
view_month_offset: 0,
message: Message::default(),
};
}
pub fn add_habit(&mut self, h: Box<dyn HabitWrapper>) {
self.habits.push(h);
}
pub fn delete_by_name(&mut self, name: &str) {
let old_len = self.habits.len();
self.habits.retain(|h| h.name() != name);
if old_len == self.habits.len() {
self.message
.set_message(format!("Could not delete habit `{}`", name))
}
}
pub fn get_mode(&self) -> ViewMode {
if self.habits.is_empty() {
return ViewMode::Day;
}
return self.habits[self.focus].view_mode();
}
pub fn set_mode(&mut self, mode: ViewMode) {
if !self.habits.is_empty() {
self.habits[self.focus].set_view_mode(mode);
}
}
pub fn set_view_month_offset(&mut self, offset: u32) {
self.view_month_offset = offset;
for v in self.habits.iter_mut() {
v.set_view_month_offset(offset);
}
}
pub fn sift_backward(&mut self) {
self.view_month_offset += 1;
for v in self.habits.iter_mut() {
v.set_view_month_offset(self.view_month_offset);
}
}
pub fn sift_forward(&mut self) {
if self.view_month_offset > 0 {
self.view_month_offset -= 1;
for v in self.habits.iter_mut() {
v.set_view_month_offset(self.view_month_offset);
}
}
}
pub fn set_focus(&mut self, d: Absolute) {
let grid_width = CONFIGURATION.grid_width;
match d {
Absolute::Right => {
if self.focus != self.habits.len() - 1 {
self.focus += 1;
}
}
Absolute::Left => {
if self.focus != 0 {
self.focus -= 1;
}
}
Absolute::Down => {
if self.focus + grid_width < self.habits.len() - 1 {
self.focus += grid_width;
} else {
self.focus = self.habits.len() - 1;
}
}
Absolute::Up => {
if self.focus as isize - grid_width as isize >= 0 {
self.focus -= grid_width;
} else {
self.focus = 0;
}
}
Absolute::None => {}
}
}
pub fn clear_message(&mut self) {
self.message.clear();
}
pub fn status(&self) -> StatusLine {
let today = chrono::Local::now().naive_utc().date();
let remaining = self.habits.iter().map(|h| h.remaining(today)).sum::<u32>();
let total = self.habits.iter().map(|h| h.goal()).sum::<u32>();
let completed = total - remaining;
let timestamp = if self.view_month_offset == 0 {
format!("{}", Local::now().date().format("%d/%b/%y"),)
} else {
let months = self.view_month_offset;
format!("{}", format!("{} months ago", months),)
};
StatusLine {
0: format!(
"Today: {} completed, {} remaining --{}--",
completed,
remaining,
self.get_mode()
),
1: timestamp,
}
}
pub fn max_size(&self) -> Vec2 {
let grid_width = CONFIGURATION.grid_width;
let width = {
if self.habits.len() > 0 {
grid_width * CONFIGURATION.view_width
} else {
0
}
};
let height = {
if self.habits.len() > 0 {
(CONFIGURATION.view_height as f64
* (self.habits.len() as f64 / grid_width as f64).ceil())
as usize
} else {
0
}
};
Vec2::new(width, height + 2)
}
pub fn load_state() -> Self {
let (regular_f, auto_f) = (utils::habit_file(), utils::auto_habit_file());
let read_from_file = |file: PathBuf| -> Vec<Box<dyn HabitWrapper>> {
if let Ok(ref mut f) = File::open(file) {
let mut j = String::new();
f.read_to_string(&mut j);
return serde_json::from_str(&j).unwrap();
} else {
return Vec::new();
}
};
let mut regular = read_from_file(regular_f);
let auto = read_from_file(auto_f);
regular.extend(auto);
return App {
habits: regular,
..Default::default()
};
}
// this function does IO
// TODO: convert this into non-blocking async function
pub fn save_state(&self) {
let (regular, auto): (Vec<_>, Vec<_>) = self.habits.iter().partition(|&x| !x.is_auto());
let (regular_f, auto_f) = (utils::habit_file(), utils::auto_habit_file());
let write_to_file = |data: Vec<&Box<dyn HabitWrapper>>, file: PathBuf| {
let j = serde_json::to_string_pretty(&data).unwrap();
match OpenOptions::new()
.write(true)
.create(true)
.truncate(true)
.open(file)
{
Ok(ref mut f) => f.write_all(j.as_bytes()).unwrap(),
Err(_) => panic!("Unable to write!"),
};
};
write_to_file(regular, regular_f);
write_to_file(auto, auto_f);
}
pub fn parse_command(&mut self, result: Result<Command, CommandLineError>) {
match result {
Ok(c) => match c {
Command::Add(name, goal, auto) => {
let kind = if goal == Some(1) { "bit" } else { "count" };
if kind == "count" {
self.add_habit(Box::new(Count::new(name, goal.unwrap_or(0), auto)));
} else if kind == "bit" {
self.add_habit(Box::new(Bit::new(name, auto)));
}
}
Command::Delete(name) => {
self.delete_by_name(&name);
self.focus = 0;
}
Command::TrackUp(name) => {
let target_habit = self
.habits
.iter_mut()
.find(|x| x.name() == name && x.is_auto());
if let Some(h) = target_habit {
h.modify(Local::now().naive_utc().date(), TrackEvent::Increment);
}
}
Command::TrackDown(name) => {
let target_habit = self
.habits
.iter_mut()
.find(|x| x.name() == name && x.is_auto());
if let Some(h) = target_habit {
h.modify(Local::now().naive_utc().date(), TrackEvent::Decrement);
}
}
Command::Quit => self.save_state(),
Command::MonthNext => self.sift_forward(),
Command::MonthPrev => self.sift_backward(),
Command::Blank => {}
},
Err(e) => {
self.message.set_message(e.to_string());
self.message.set_kind(MessageKind::Error);
}
}
}
}
|
