Implement delete()

imag-diary/src/main.rs

@@ -55,7 +55,7 @@ fn main() {
             debug!("Call {}", name);
             match name {
                 "create" => create(&rt),
-                // "delete" => delete(&rt),
+                "delete" => delete(&rt),
                 "edit" => edit(&rt),
                 "list" => list(&rt),
                 "diary" => diary(&rt),
@@ -135,7 +135,57 @@ fn list(rt: &Runtime) {
 }
 
 fn delete(rt: &Runtime) {
-    unimplemented!()
+    use libimaginteraction::ask::ask_bool;
+
+    let diaryname = get_diary_name(rt);
+    if diaryname.is_none() {
+        warn!("No diary selected. Use either the configuration file or the commandline option");
+        exit(1);
+    }
+    let diaryname = diaryname.unwrap();
+
+    let diary = Diary::open(rt.store(), &diaryname[..]);
+    debug!("Diary opened: {:?}", diary);
+
+    let datetime : Option<NaiveDateTime> = rt
+        .cli()
+        .subcommand_matches("delete")
+        .unwrap()
+        .value_of("datetime")
+        .map(|dt| { debug!("DateTime = {:?}", dt); dt })
+        .and_then(DateTime::parse)
+        .map(|dt| dt.into());
+
+    let to_del = match datetime {
+        Some(dt) => Some(diary.retrieve(DiaryId::from_datetime(diaryname.clone(), dt))),
+        None     => diary.get_youngest_entry(),
+    };
+
+    let to_del = match to_del {
+        Some(Ok(e)) => e,
+
+        Some(Err(e)) => {
+            trace_error(&e);
+            exit(1);
+        },
+        None => {
+            warn!("No entry");
+            exit(1);
+        },
+    };
+
+    if !ask_bool(&format!("Deleting {:?}", to_del.get_location())[..], Some(true)) {
+        info!("Aborting delete action");
+        return;
+    }
+
+    match diary.delete_entry(to_del) {
+        Ok(_) => info!("Ok"),
+        Err(e) => {
+            trace_error(&e);
+            exit(1);
+        },
+    }
 }
 
 fn edit(rt: &Runtime) {