1 files changed, 31 insertions, 0 deletions
diff --git a/src/notd/mod.rs b/src/notd/mod.rs
new file mode 100644
index 0000000..07cbe6e
--- /dev/null
+++ b/src/notd/mod.rs
@@ -0,0 +1,31 @@
+mod rand;
+
+use gtk::glib::DateTime;
+
+pub fn current_datetime() -> DateTime {
+    if let Ok(datetime) = DateTime::now_local() {
+        return datetime;
+    } else {
+        return DateTime::from_unix_utc(0).expect("DateTime is Broken");
+    }
+}
+
+pub fn number_of_the_day() -> u8 {
+    (rand::random_from_seed(date_to_seed(current_datetime())) % 100) as u8
+}
+
+pub fn personal_number_of_the_day(name_in: &str) -> u8 {
+    let name = name_in.trim().to_lowercase();
+    if &name == "" || &name == "name" {
+        return number_of_the_day();
+    }
+    ((rand::random_from_seed(date_to_seed(current_datetime()))
+        .wrapping_add(rand::seed_from_name(&name)))
+        % 100) as u8
+}
+
+fn date_to_seed(date: DateTime) -> u64 {
+    format!("{}{}{}", date.day_of_month(), date.month(), date.year())
+        .parse()
+        .unwrap_or(0)
+}