add first impl

1 files changed, 59 insertions, 0 deletions

diff --git a/src/input.rs b/src/input.rs
new file mode 100644
index 0000000..689389e
--- /dev/null
+++ b/src/input.rs
@@ -0,0 +1,59 @@
+use std::io::{stdin, Error, ErrorKind};
+use crate::{add, config::Cfg};
+
+pub struct Input {
+    pub command: String,
+    pub args: Option<Vec<String>>,
+}
+
+impl Input {
+    pub fn from(string: String) -> Result<Self, Box<dyn std::error::Error>> {
+        let mut split: Vec<&str> = string.split(' ').collect();
+
+        let command: String;
+        let mut args: Option<Vec<String>> = None;
+
+        if split[0].is_empty() { split.remove(0); };
+
+        dbg!(&split);
+
+        match split.len() {
+            0 => { Err(Box::new(Error::new(ErrorKind::InvalidInput, "NO_ARGS"))) } 
+            1 => Ok( Input { command: split[0].to_string(), args }),
+            2.. => {
+                command = split[0].to_string();
+                split.remove(0);
+                let mut str_args: Vec<String> = vec![];
+                for e in split {
+                    str_args.push(e.to_string());
+                }
+                args = Some(str_args);
+                Ok(Input { command, args })
+            },
+            _ => { panic!("This should never happen") } 
+        }
+
+
+    }
+}
+
+pub async fn get_input(config: Cfg) -> Result<(), Box<dyn std::error::Error>> {
+    let mut user_input = String::new();
+    stdin()
+        .read_line(&mut user_input)
+        .expect("ERROR");
+
+    dbg!(&user_input);
+
+    let input = Input::from(user_input.trim().to_string())?;
+
+    match input.command.as_str() {
+        "add" => { 
+            if input.args == None { return Err(Box::new(Error::new(ErrorKind::InvalidInput, "TOO_FEW_ARGUMENTS"))) };
+            if input.args.as_ref().unwrap().len() != 1 { return Err(Box::new(Error::new(ErrorKind::InvalidInput, "TOO_MANY_ARGUMENTS"))) };
+            add(config, input.args.unwrap()[0].to_string()).await?;
+            Ok(()) 
+        },
+        _ => Err(Box::new(Error::new(ErrorKind::InvalidInput, "UNKNOWN_COMMAND"))),
+    }
+}