basic show

src/main.rs

@@ -20,20 +20,25 @@ struct Cli {
 
 #[derive(Subcommand)]
 enum Commands {
-    
+
     /// Initialization of storage and config, use this in first time of usage of mps
     Init,
 
+    /// Lists all ids stored in db
+    List,
+
     /// Adds new item with unique id to the db
     Add {
         #[arg(value_name="item_id")]
         id: String
     },
-    
-    /// Lists all ids stored in db
-    List
 
-    // TODO: show
+    /// Show content of item
+    Show {
+        #[arg(value_name="item_id")]
+        id: String
+    }
+
     // TODO: edit
 
 }
@@ -94,6 +99,17 @@ fn init() -> io::Result<()> {
     Ok(())
 }
 
+fn list() -> io:: Result<()> {
+    let passphrase = login()?;
+    let st = Storage::from_db(passphrase)?;
+    let mut vec: Vec<_> = st.items.iter().collect();
+    vec.sort();
+    for item in &vec {
+        println!("{}", item.id);
+    }
+    Ok(())
+}
+
 fn add(id: &String) -> io::Result<()> {
     let passphrase = login()?;
     let mut st = Storage::from_db(passphrase)?;
@@ -102,6 +118,7 @@ fn add(id: &String) -> io::Result<()> {
         return Err(io::Error::new(
             io::ErrorKind::InvalidInput,
             format!("Dublicate item id: {}. Item id's must be unique.", id)
+            // TODO: ask to edit [Y/n]
         ))
     }
 
@@ -112,14 +129,19 @@ fn add(id: &String) -> io::Result<()> {
     Ok(())
 }
 
-fn list() -> io:: Result<()> {
-    let passphrase = login()?;
-    let st = Storage::from_db(passphrase)?;
-    let mut vec: Vec<_> = st.items.iter().collect();
-    vec.sort();
-    for item in &vec {
-        println!("{}", item.id);
+fn show(id: &String) -> io::Result<()> {
+    let passphrase = login()?;                                                                                                                              
+    let mut st = Storage::from_db(passphrase)?;
+    if !st.contains(id) {
+        return Err(io::Error::new(
+            io::ErrorKind::InvalidInput,
+            format!("Can`t find id: {}", id)
+        ));
     }
+
+    let item = st.get(id);
+    println!("content:");
+    println!("{}", item.content);
     Ok(())
 }
 
@@ -132,6 +154,9 @@ fn run_command() -> io::Result<()> {
         Some(Commands::Add{ id }) => {
             add(id)?;
         }
+        Some(Commands::Show{ id }) => {
+            show(id)?;
+        }
         Some(Commands::List) => {
             list()?;
         }

src/storage.rs

@@ -179,6 +179,11 @@ impl Storage {
         self.items.contains(&item)
     }
 
+    pub fn get(&self, id: &String) -> &Item {
+        let item = Item::from_empty(id.clone());
+        self.items.get(&item).unwrap()
+    }
+
     pub fn dump(&self) -> io::Result<()> {
         let mut file = fs::OpenOptions::new()
             .write(true)