TimeParser into i64. Generic argument across create_reminder. Some more work on natural inc. splitting off first args and calling the subprocess

src/time_parser.rs

@@ -11,6 +11,7 @@ use std::fmt::{
 
 use chrono_tz::Tz;
 use chrono::TimeZone;
+use std::convert::TryFrom;
 
 #[derive(Debug)]
 pub enum InvalidTime {
@@ -40,6 +41,14 @@ pub struct TimeParser {
     parse_type: ParseType,
 }
 
+impl TryFrom<&TimeParser> for i64 {
+    type Error = InvalidTime;
+
+    fn try_from(value: &TimeParser) -> Result<Self, Self::Error> {
+        value.timestamp()
+    }
+}
+
 impl TimeParser {
     pub fn new(input: String, timezone: Tz) -> Self {
         let inverted = if input.starts_with("-") {