wip: refactor pt.9, 403 errors

crates/tek_tui/src/tui_pool_rename.rs

@@ -0,0 +1,73 @@
+use crate::*;
+
+#[derive(Clone, PartialEq)]
+pub enum PhraseRenameCommand {
+    Begin,
+    Backspace,
+    Append(char),
+    Set(String),
+    Confirm,
+    Cancel,
+}
+
+impl InputToCommand<Tui, PhrasePoolView<Tui>> for PhraseRenameCommand {
+    fn input_to_command (_: &PhrasePoolView<Tui>, from: &TuiInput) -> Option<Self> {
+        match from.event() {
+            key!(KeyCode::Backspace) => Some(Self::Backspace),
+            key!(KeyCode::Enter)     => Some(Self::Confirm),
+            key!(KeyCode::Esc)       => Some(Self::Cancel),
+            key!(KeyCode::Char(c))   => Some(Self::Append(*c)),
+            _ => None
+        }
+    }
+}
+
+impl<E: Engine> Command<PhrasePoolView<E>> for PhraseRenameCommand {
+    fn translate (self, state: &PhrasePoolView<E>) -> Self {
+        use PhraseRenameCommand::*;
+        if let Some(PhrasePoolMode::Rename(_, ref old_name)) = state.mode {
+            match self {
+                Backspace => {
+                    let mut new_name = old_name.clone();
+                    new_name.pop();
+                    return Self::Set(new_name)
+                },
+                Append(c) => {
+                    let mut new_name = old_name.clone();
+                    new_name.push(c);
+                    return Self::Set(new_name)
+                },
+                _ => {}
+            }
+        } else if self != Begin {
+            unreachable!()
+        }
+        self
+    }
+    fn execute (self, state: &mut PhrasePoolView<E>) -> Perhaps<Self> {
+        use PhraseRenameCommand::*;
+        if let Some(PhrasePoolMode::Rename(phrase, ref mut old_name)) = state.mode {
+            match self {
+                Set(s) => {
+                    state.phrases[phrase].write().unwrap().name = s.into();
+                    return Ok(Some(Self::Set(old_name.clone())))
+                },
+                Confirm => {
+                    let old_name = old_name.clone();
+                    state.mode = None;
+                    return Ok(Some(Self::Set(old_name)))
+                },
+                Cancel => {
+                    let mut phrase = state.phrases[phrase].write().unwrap();
+                    phrase.name = old_name.clone();
+                },
+                _ => unreachable!()
+            };
+            Ok(None)
+        } else if self == Begin {
+            todo!()
+        } else {
+            unreachable!()
+        }
+    }
+}