Adding SpeedUnit and TempUnit

src/cli.rs

@@ -1,5 +1,7 @@
 use structopt::StructOpt;
 
+use crate::{temp_unit::TempUnit, speed_unit::SpeedUnit};
+
 #[derive(Debug, StructOpt)]
 #[structopt(
     name = "open-meteo-cli",
@@ -30,14 +32,18 @@ pub enum Arguments {
         all: bool,
         #[structopt(short = "d", long, help = "Displays if it's day or night")]
         is_day: bool,
-        #[structopt(
-            short = "t",
-            long,
-            help = "Displays the decimal temperature, in Celsius"
-        )]
+        #[structopt(short = "t", long, help = "Displays the decimal temperature")]
         temperature: bool,
-        #[structopt(short = "w", long, help = "Displays the decimal wind speed, in km/h")]
+        #[structopt(long, 
+            possible_values = &TempUnit::variants(), default_value = "Celsius" , case_insensitive = true,
+        help = "Switches between Celsius or Fahrenheit")]
+        temperature_unit: TempUnit,
+        #[structopt(short = "w", long, help = "Displays the decimal wind speed")]
         windspeed: bool,
+         #[structopt(long, 
+            possible_values = &SpeedUnit::variants(), default_value = "Kmh" , case_insensitive = true,
+        help = "Switches between km/h, m/s, mp/h or knots")]
+        speed_unit: SpeedUnit,
         #[structopt(short = "W", long, help = "Displays the wind direction, in degrees")]
         winddirection: bool,
         #[structopt(long = "coords", help = "Displays the latitude and the longitude")]