use simplelog to log messages

Signed-off-by: Fabrizio Iannetti <fabrizio.iannetti@gmail.com>

Cargo.toml

@@ -15,6 +15,8 @@ lttng-ust = { version = "0.1.0", optional = true }
 icalendar = "0.15.4"
 directories = "5.0.1"
 clap = { version = "4.3.11", features = ["derive"] }
+log = { version = "0.4", features = ["std", "serde"] }
+simplelog = { version = "^0.12.0", default-features = false }
 
 [build-dependencies]
 #lttng-ust-generate = "0.1.0"

src/main.rs

@@ -3,31 +3,36 @@ mod ui;
 mod model;
 
 use ui::calendar;
-use model::events::EventsCollection;
-use model::ical_bridge::load_calendar;
-
+use model::{
+	events::EventsCollection,
+	ical_bridge::load_calendar,
+};
 use chrono::{Datelike, NaiveDate, Months, Utc};
 use calendar::{CalendarParams, CalendarView };
 use calendar::CalendarViewMode as ViewMode;
-
 use std::path;
-use clap;
 use clap::Parser;
-
+use log::info;
+use simplelog::{SimpleLogger, Config};
 use iced::{
     alignment,
     executor,
-    Alignment, Application, Command,
-    Element, Length, Settings,
+    Alignment, 
+    Application, 
+    Command,
+    Element, 
+    Length, 
+    Settings,
+    widget::{
+	    Column, 
+	    Row,
+	    Container,
+	    Button, 
+	    Text,
+	    pick_list,
+	},
+	theme,
 };
-use iced::widget::{
-    Column, Row,
-    Container,
-    Button, Text,
-    pick_list,
-};
-//use iced::button;
-use iced::theme;
 
 #[cfg(feature = "tracing")]
 extern crate lttng_ust;
@@ -52,12 +57,21 @@ struct CliArgs {
 }
 
 pub fn main() -> iced::Result {
+	set_up_logger();
+
     let args = CliArgs::parse();
-    let calendar_files = args.files.iter().map(|arg| path::PathBuf::from(arg)).collect();
-    //let calendar_files = vec![path::PathBuf::from("/home/fab/calendario.ics")];
+    let calendar_files = args.files.iter().map(|arg| {
+    	info!("CalFile: {}", arg);
+    	path::PathBuf::from(arg)
+    }).collect();
+
     CalendarApp::run(Settings::with_flags(CalendarFlags {calendar_paths: calendar_files}))
 }
 
+fn set_up_logger() {
+	SimpleLogger::init(log::LevelFilter::Info, Config::default()).unwrap();
+}
+
 #[derive(Default)]
 struct CalendarApp {
     month: NaiveDate,
@@ -149,15 +163,19 @@ impl Controls {
 
     fn get_msg_next(&self) -> Message {
         match self.mode {
+            Some(ViewMode::Week) => Message::NextWeek,
             Some(ViewMode::Month) => Message::NextMonth,
-            _ => Message::NextYear
+            Some(ViewMode::Year) => Message::NextYear,
+            None => todo!(),
         }
     }
 
     fn get_msg_prev(&self) -> Message {
         match self.mode {
+            Some(ViewMode::Week) => Message::PrevWeek,
             Some(ViewMode::Month) => Message::PrevMonth,
-            _ => Message::PrevYear
+            Some(ViewMode::Year) => Message::PrevYear,
+            None => todo!(),
         }
     }
 }

src/model/ical_bridge.rs

@@ -3,6 +3,7 @@ use icalendar::{Component, DatePerhapsTime, CalendarDateTime, CalendarComponent}
 use chrono::NaiveDate;
 use crate::EventsCollection;
 use std::fs;
+use log::warn;
 
 fn cdt_as_date(cdt: &CalendarDateTime) -> NaiveDate {
     match cdt {
@@ -25,12 +26,16 @@ fn create_event(events: &mut EventsCollection, event: &icalendar::Event) {
 
 pub fn load_calendar(calendar_path: &std::path::Path, events: &mut EventsCollection) {
     let mut calendar = icalendar::Calendar::new();
-    let contents = fs::read_to_string(calendar_path)
-        .expect("Could not read the calendar");
+
+    let contents = match fs::read_to_string(calendar_path) {
+        Ok(file_content) => file_content,
+        Err(e) => { warn!("Could not read the calendar: {}", e); return; },
+    };
+
     let res = icalendar::parser::read_calendar(&contents);
     match res {
-        Ok(parsed_calendar) => { calendar.extend(parsed_calendar.components); }
-        Err(e) => println!("{}", e)
+        Ok(parsed_calendar) => { calendar.extend(parsed_calendar.components); },
+        Err(e) => { warn!("Error parsing calendar {}", e); return; }
     }
 
     for cc in calendar.iter() {