1 files changed, 187 insertions, 0 deletions
diff --git a/src/gui/calendar.rs b/src/gui/calendar.rs
new file mode 100644
index 0000000..918438d
--- /dev/null
+++ b/src/gui/calendar.rs
@@ -0,0 +1,187 @@
+use gtk4 as gtk;
+
+use async_channel::Sender;
+use chrono::{Datelike, NaiveDate};
+use gtk::glib;
+use gtk::prelude::*;
+use std::collections::HashMap;
+
+use crate::{gui::update, gui::update::Msg, gui::App, model::event, model::event::Event};
+
+static DAYS: [&str; 7] = ["LUN", "MAR", "MER", "JEU", "VEN", "SAM", "DIM"];
+static MONTHES: [&str; 12] = [
+    "Jan", "Fév", "Mar", "Avr", "Mai", "Juin", "Juil", "Aoû", "Sep", "Oct", "Nov", "Déc",
+];
+
+pub fn create(
+    tx: Sender<Msg>,
+    today: NaiveDate,
+    start_date: NaiveDate,
+    end_date: NaiveDate,
+    events: &[Event],
+    repeated_events: &[Event],
+) -> gtk::Grid {
+    let grid = gtk::Grid::builder().build();
+
+    for col in 0..7 {
+        grid.attach(&day_title(col), col, 0, 1, 1);
+    }
+
+    let repetitions = event::repetitions_between(repeated_events, start_date, end_date);
+    attach_days(tx, &grid, start_date, today, events, &repetitions);
+
+    grid
+}
+
+fn attach_days(
+    tx: Sender<Msg>,
+    grid: &gtk::Grid,
+    start_date: NaiveDate,
+    today: NaiveDate,
+    events: &[Event],
+    repetitions: &HashMap<NaiveDate, Vec<Event>>,
+) {
+    let mut d = start_date;
+    for row in 1..5 {
+        for col in 0..7 {
+            grid.attach(
+                &day_entry(tx.clone(), d, today, events, repetitions),
+                col,
+                row,
+                1,
+                1,
+            );
+            d = d.succ();
+        }
+    }
+}
+
+pub fn refresh_date(app: &App, date: NaiveDate, repetitions: &HashMap<NaiveDate, Vec<Event>>) {
+    let d = date.signed_duration_since(app.start_date).num_days();
+
+    let col = (d % 7) as i32;
+    let row = 1 + (d / 7) as i32;
+
+    app.grid.attach(
+        &day_entry(app.tx.clone(), date, app.today, &app.events, repetitions),
+        col,
+        row,
+        1,
+        1,
+    )
+}
+
+fn day_title(col: i32) -> gtk::Box {
+    let vbox = gtk::Box::builder()
+        .orientation(gtk::Orientation::Vertical)
+        .build();
+
+    vbox.add_css_class("g-Calendar__DayTitle");
+
+    let label = gtk::Label::builder().label(DAYS[col as usize]).build();
+
+    vbox.append(&label);
+
+    vbox
+}
+
+pub fn day_entry(
+    tx: Sender<Msg>,
+    date: NaiveDate,
+    today: NaiveDate,
+    events: &[Event],
+    repetitions: &HashMap<NaiveDate, Vec<Event>>,
+) -> gtk::ScrolledWindow {
+    let vbox = gtk::Box::builder()
+        .orientation(gtk::Orientation::Vertical)
+        .build();
+
+    vbox.add_css_class("g-Calendar__Day");
+
+    let gesture = gtk::GestureClick::new();
+    gesture.connect_pressed(glib::clone!(@strong tx => move |_, n, _, _| {
+        if n == 2 {
+            update::send(tx.clone(), Msg::ShowAddForm { date });
+        }
+    }));
+    vbox.add_controller(&gesture);
+
+    if date == today {
+        vbox.add_css_class("g-Calendar__Day--Today");
+    }
+
+    vbox.append(&day_label(date));
+
+    let mut events = events
+        .iter()
+        .filter(|e| e.date == date)
+        .collect::<Vec<&Event>>();
+    let repeated_events = repetitions.get(&date).cloned().unwrap_or_default();
+    events.extend(repeated_events.iter());
+    events.sort_by_key(|e| e.start);
+
+    if !events.is_empty() {
+        vbox.append(&day_events(tx, events));
+    }
+
+    gtk::ScrolledWindow::builder()
+        .hscrollbar_policy(gtk::PolicyType::Never)
+        .hexpand(true)
+        .vexpand(true)
+        .child(&vbox)
+        .build()
+}
+
+fn day_label(date: NaiveDate) -> gtk::Label {
+    let label = gtk::Label::builder()
+        .label(&format!(
+            "{} {}",
+            date.day(),
+            MONTHES[date.month0() as usize]
+        ))
+        .halign(gtk::Align::Start)
+        .build();
+
+    label.add_css_class("g-Calendar__DayNumber");
+
+    label
+}
+
+fn day_events(tx: Sender<Msg>, events: Vec<&Event>) -> gtk::Box {
+    let vbox = gtk::Box::builder()
+        .orientation(gtk::Orientation::Vertical)
+        .build();
+
+    for event in events {
+        let hbox = gtk::Box::builder()
+            .orientation(gtk::Orientation::Horizontal)
+            .hexpand(true)
+            .build();
+
+        let gesture = gtk::GestureClick::new();
+        gesture.connect_pressed(
+            glib::clone!(@strong event, @strong tx => move |gesture, n, _, _| {
+                gesture.set_state(gtk::EventSequenceState::Claimed);
+                if n == 2 {
+                    update::send(tx.clone(), Msg::ShowUpdateForm { event: event.clone() });
+                }
+            }),
+        );
+        hbox.add_controller(&gesture);
+
+        hbox.add_css_class("g-Calendar__DayEvent");
+
+        let event_txt = &event.pprint();
+        let label = gtk::Label::builder()
+            .label(event_txt)
+            .ellipsize(gtk::pango::EllipsizeMode::End)
+            .tooltip_text(event_txt)
+            .halign(gtk::Align::Start)
+            .build();
+
+        hbox.append(&label);
+        vbox.append(&hbox);
+    }
+
+    vbox
+}