From 6c47403b11e7aaf1a22778bdc7615051779cb7bd Mon Sep 17 00:00:00 2001
From: Joris
Date: Sun, 9 Jan 2022 14:50:45 +0100
Subject: Allow to delete events

---
 README.md         |  6 +-----
 src/app/form.rs   | 23 +++++++++++++++++++++--
 src/app/update.rs | 10 ++++++++++
 src/db/mod.rs     |  9 +++++++++
 4 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/README.md b/README.md
index 2ec9e8d..ddd7ed3 100644
--- a/README.md
+++ b/README.md
@@ -12,11 +12,6 @@ nix develop --command cargo run
 
 # TODO
 
-## CRUD
-
-1. Modify an event with double click.
-2. Delete an event with right click.
-
 ## Complexify event
 
 Be able to specify repetition.
@@ -52,3 +47,4 @@ Be able to specify repetition.
 - Apply a style on times in the calendar (bold ?).
 - Print errors on forms when validating.
 - Validate the form when pressing enter on any field
+- Remove event with right click
diff --git a/src/app/form.rs b/src/app/form.rs
index 6c42cd0..7f75db0 100644
--- a/src/app/form.rs
+++ b/src/app/form.rs
@@ -46,11 +46,14 @@ pub async fn show(app: &App, event: Event, is_new: bool) {
     vbox.append(&label("Fin"));
     vbox.append(&end);
 
-    let button = gtk::Button::with_label("Créer");
+    let button = gtk::Button::builder()
+        .label(if is_new { "Créer" } else { "Modifier" })
+        .margin_bottom(10)
+        .build();
     vbox.append(&button);
     let conn = app.conn.clone();
     let tx = app.tx.clone();
-    button.connect_clicked(glib::clone!(@weak dialog => move |_| {
+    button.connect_clicked(glib::clone!(@weak dialog, @strong event => move |_| {
         match event::validate(event.id, date.buffer().text(), name.buffer().text(), start.buffer().text(), end.buffer().text()) {
             Some(new) => {
                 match if is_new { db::insert(&conn, &new) } else { db::update(&conn, &new) } {
@@ -66,6 +69,22 @@ pub async fn show(app: &App, event: Event, is_new: bool) {
         }
     }));
 
+    if !is_new {
+        let button = gtk::Button::builder().label("Supprimer").build();
+        vbox.append(&button);
+        let conn = app.conn.clone();
+        let tx = app.tx.clone();
+        button.connect_clicked(glib::clone!(@weak dialog => move |_| {
+            match db::delete(&conn, &event.id) {
+                Ok(_) => {
+                    update::send(tx.clone(), Msg::DeleteEvent { event: event.clone() });
+                    dialog.close()
+                },
+                Err(_) => ()
+            }
+        }));
+    }
+
     dialog.run_future().await;
 }
 
diff --git a/src/app/update.rs b/src/app/update.rs
index f1576b5..baf4651 100644
--- a/src/app/update.rs
+++ b/src/app/update.rs
@@ -17,6 +17,7 @@ pub enum Msg {
     ShowUpdateForm { event: Event },
     AddEvent { new: Event },
     UpdateEvent { old: Event, new: Event },
+    DeleteEvent { event: Event },
 }
 
 pub async fn event_handler(rx: Receiver<Msg>, mut app: App) {
@@ -47,6 +48,15 @@ pub async fn event_handler(rx: Receiver<Msg>, mut app: App) {
                     None => println!("Event not found when updating from {:?} to {:?}", old, new),
                 }
             }
+            Msg::DeleteEvent { event } => {
+                match app.events.iter().position(|e| e.id == event.id) {
+                    Some(index) => {
+                        app.events.remove(index);
+                        calendar::refresh_date(&app, event.date);
+                    }
+                    None => println!("Event not found when trying to delete {:?}", event),
+                }
+            }
         }
     }
 }
diff --git a/src/db/mod.rs b/src/db/mod.rs
index 03692e9..0dd4ddf 100644
--- a/src/db/mod.rs
+++ b/src/db/mod.rs
@@ -30,6 +30,15 @@ pub fn update(conn: &Connection, event: &Event) -> Result<()> {
     Ok(())
 }
 
+pub fn delete(conn: &Connection, id: &Uuid) -> Result<()> {
+    conn.execute(
+        "DELETE FROM events WHERE id = ?",
+        params![id.to_hyphenated().to_string()],
+    )?;
+
+    Ok(())
+}
+
 // TODO: Don’t use unwrap
 pub fn list(conn: &Connection) -> Result<Vec<Event>> {
     let mut stmt = conn.prepare("SELECT id, date, start, end, name FROM events")?;
-- 
cgit v1.2.3