restructured all the reminder creation stuff into builders

src/models/reminder/helper.rs

@@ -0,0 +1,40 @@
+use crate::consts::{CHARACTERS, DAY, HOUR, MINUTE};
+
+use num_integer::Integer;
+
+use rand::{rngs::OsRng, seq::IteratorRandom};
+
+pub fn longhand_displacement(seconds: u64) -> String {
+    let (days, seconds) = seconds.div_rem(&DAY);
+    let (hours, seconds) = seconds.div_rem(&HOUR);
+    let (minutes, seconds) = seconds.div_rem(&MINUTE);
+
+    let mut sections = vec![];
+
+    for (var, name) in [days, hours, minutes, seconds]
+        .iter()
+        .zip(["days", "hours", "minutes", "seconds"].iter())
+    {
+        if *var > 0 {
+            sections.push(format!("{} {}", var, name));
+        }
+    }
+
+    sections.join(", ")
+}
+
+pub fn generate_uid() -> String {
+    let mut generator: OsRng = Default::default();
+
+    (0..64)
+        .map(|_| {
+            CHARACTERS
+                .chars()
+                .choose(&mut generator)
+                .unwrap()
+                .to_owned()
+                .to_string()
+        })
+        .collect::<Vec<String>>()
+        .join("")
+}