From 3dc5a89459aff928bfe697f33295e722be876259 Mon Sep 17 00:00:00 2001
From: filipriec <filippriec@gmail.com>
Date: Thu, 3 Apr 2025 23:23:25 +0200
Subject: [PATCH] splitting modes into functions and how it works vs logic to
 handle it all

---
 client/src/functions/modes/edit.rs        |   4 +
 client/src/functions/modes/edit/auth_e.rs |   0
 client/src/functions/modes/edit/form_e.rs | 431 ++++++++++++++++++++++
 client/src/modes/canvas/edit.rs           | 427 +--------------------
 4 files changed, 442 insertions(+), 420 deletions(-)
 create mode 100644 client/src/functions/modes/edit/auth_e.rs
 create mode 100644 client/src/functions/modes/edit/form_e.rs

diff --git a/client/src/functions/modes/edit.rs b/client/src/functions/modes/edit.rs
index e69de29..dd8db60 100644
--- a/client/src/functions/modes/edit.rs
+++ b/client/src/functions/modes/edit.rs
@@ -0,0 +1,4 @@
+// src/functions/modes/edit.rs
+
+pub mod form_e;
+pub mod auth_e;
diff --git a/client/src/functions/modes/edit/auth_e.rs b/client/src/functions/modes/edit/auth_e.rs
new file mode 100644
index 0000000..e69de29
diff --git a/client/src/functions/modes/edit/form_e.rs b/client/src/functions/modes/edit/form_e.rs
new file mode 100644
index 0000000..6e4c730
--- /dev/null
+++ b/client/src/functions/modes/edit/form_e.rs
@@ -0,0 +1,431 @@
+// src/functions/modes/edit/form_e.rs
+
+use crate::config::binds::config::Config;
+use crate::services::grpc_client::GrpcClient;
+use crate::state::canvas_state::CanvasState;
+use crate::state::pages::form::FormState;
+use crate::functions::common::form::{revert, save};
+use crossterm::event::{KeyCode, KeyEvent};
+use std::any::Any;
+
+pub async fn execute_common_action<S: CanvasState + Any>(
+    action: &str,
+    state: &mut S,
+    grpc_client: &mut GrpcClient,
+    is_saved: &mut bool,
+    current_position: &mut u64,
+    total_count: u64,
+) -> Result<String, Box<dyn std::error::Error>> {
+    match action {
+        "save" | "revert" => {
+            if !state.has_unsaved_changes() {
+                return Ok("No changes to save or revert.".to_string());
+            }
+            if let Some(form_state) =
+                (state as &mut dyn Any).downcast_mut::<FormState>()
+            {
+                match action {
+                    "save" => {
+                        save(
+                            form_state,
+                            grpc_client,
+                            is_saved,
+                            current_position,
+                            total_count,
+                        )
+                        .await
+                    }
+                    "revert" => {
+                        revert(
+                            form_state,
+                            grpc_client,
+                            current_position,
+                            total_count,
+                        )
+                        .await
+                    }
+                    _ => unreachable!(),
+                }
+            } else {
+                Ok(format!(
+                    "Action '{}' not implemented for this state type.",
+                    action
+                ))
+            }
+        }
+        _ => Ok(format!("Common action '{}' not handled here.", action)),
+    }
+}
+
+pub async fn execute_edit_action<S: CanvasState>(
+    action: &str,
+    key: KeyEvent,
+    state: &mut S,
+    ideal_cursor_column: &mut usize,
+    _grpc_client: &mut GrpcClient,
+    _is_saved: &mut bool,
+    _current_position: &mut u64,
+    _total_count: u64,
+) -> Result<String, Box<dyn std::error::Error>> {
+    match action {
+        "insert_char" => {
+            if let KeyCode::Char(c) = key.code {
+                let cursor_pos = state.current_cursor_pos();
+                let field_value = state.get_current_input_mut();
+                let mut chars: Vec<char> = field_value.chars().collect();
+                if cursor_pos <= chars.len() {
+                    chars.insert(cursor_pos, c);
+                    *field_value = chars.into_iter().collect();
+                    state.set_current_cursor_pos(cursor_pos + 1);
+                    state.set_has_unsaved_changes(true);
+                    *ideal_cursor_column = state.current_cursor_pos();
+                }
+            } else {
+                return Ok("Error: insert_char called without a char key."
+                    .to_string());
+            }
+            Ok("".to_string())
+        }
+
+        "delete_char_backward" => {
+            if state.current_cursor_pos() > 0 {
+                let cursor_pos = state.current_cursor_pos();
+                let field_value = state.get_current_input_mut();
+                let mut chars: Vec<char> = field_value.chars().collect();
+                if cursor_pos <= chars.len() {
+                    chars.remove(cursor_pos - 1);
+                    *field_value = chars.into_iter().collect();
+                    let new_pos = cursor_pos - 1;
+                    state.set_current_cursor_pos(new_pos);
+                    state.set_has_unsaved_changes(true);
+                    *ideal_cursor_column = new_pos;
+                }
+            }
+            Ok("".to_string())
+        }
+
+        "delete_char_forward" => {
+            let cursor_pos = state.current_cursor_pos();
+            let field_value = state.get_current_input_mut();
+            let mut chars: Vec<char> = field_value.chars().collect();
+            if cursor_pos < chars.len() {
+                chars.remove(cursor_pos);
+                *field_value = chars.into_iter().collect();
+                state.set_has_unsaved_changes(true);
+                *ideal_cursor_column = cursor_pos;
+            }
+            Ok("".to_string())
+        }
+
+        "next_field" => {
+            let num_fields = state.fields().len();
+            if num_fields > 0 {
+                let current_field = state.current_field();
+                let new_field = (current_field + 1) % num_fields;
+                state.set_current_field(new_field);
+                let current_input = state.get_current_input();
+                let max_pos = current_input.len();
+                state.set_current_cursor_pos(
+                    (*ideal_cursor_column).min(max_pos),
+                );
+            }
+            Ok("".to_string())
+        }
+
+        "prev_field" => {
+            let num_fields = state.fields().len();
+            if num_fields > 0 {
+                let current_field = state.current_field();
+                let new_field = if current_field == 0 {
+                    num_fields - 1
+                } else {
+                    current_field - 1
+                };
+                state.set_current_field(new_field);
+                let current_input = state.get_current_input();
+                let max_pos = current_input.len();
+                state.set_current_cursor_pos(
+                    (*ideal_cursor_column).min(max_pos),
+                );
+            }
+            Ok("".to_string())
+        }
+
+        "move_left" => {
+            let new_pos = state.current_cursor_pos().saturating_sub(1);
+            state.set_current_cursor_pos(new_pos);
+            *ideal_cursor_column = new_pos;
+            Ok("".to_string())
+        }
+
+        "move_right" => {
+            let current_input = state.get_current_input();
+            let current_pos = state.current_cursor_pos();
+            if current_pos < current_input.len() {
+                let new_pos = current_pos + 1;
+                state.set_current_cursor_pos(new_pos);
+                *ideal_cursor_column = new_pos;
+            }
+            Ok("".to_string())
+        }
+
+        "move_up" => {
+            let num_fields = state.fields().len();
+            if num_fields > 0 {
+                let current_field = state.current_field();
+                let new_field = if current_field == 0 {
+                    num_fields - 1
+                } else {
+                    current_field - 1
+                };
+                state.set_current_field(new_field);
+                let current_input = state.get_current_input();
+                let max_pos = current_input.len();
+                state.set_current_cursor_pos(
+                    (*ideal_cursor_column).min(max_pos),
+                );
+            }
+            Ok("".to_string())
+        }
+
+        "move_down" => {
+            let num_fields = state.fields().len();
+            if num_fields > 0 {
+                let new_field = (state.current_field() + 1) % num_fields;
+                state.set_current_field(new_field);
+                let current_input = state.get_current_input();
+                let max_pos = current_input.len();
+                state.set_current_cursor_pos(
+                    (*ideal_cursor_column).min(max_pos),
+                );
+            }
+            Ok("".to_string())
+        }
+
+        "move_line_start" => {
+            state.set_current_cursor_pos(0);
+            *ideal_cursor_column = 0;
+            Ok("".to_string())
+        }
+
+        "move_line_end" => {
+            let current_input = state.get_current_input();
+            let new_pos = current_input.len();
+            state.set_current_cursor_pos(new_pos);
+            *ideal_cursor_column = new_pos;
+            Ok("".to_string())
+        }
+
+        "move_first_line" => {
+            let num_fields = state.fields().len();
+            if num_fields > 0 {
+                state.set_current_field(0);
+                let current_input = state.get_current_input();
+                let max_pos = current_input.len();
+                state.set_current_cursor_pos(
+                    (*ideal_cursor_column).min(max_pos),
+                );
+            }
+            Ok("Moved to first field".to_string())
+        }
+
+        "move_last_line" => {
+            let num_fields = state.fields().len();
+            if num_fields > 0 {
+                let new_field = num_fields - 1;
+                state.set_current_field(new_field);
+                let current_input = state.get_current_input();
+                let max_pos = current_input.len();
+                state.set_current_cursor_pos(
+                    (*ideal_cursor_column).min(max_pos),
+                );
+            }
+            Ok("Moved to last field".to_string())
+        }
+
+        "move_word_next" => {
+            let current_input = state.get_current_input();
+            if !current_input.is_empty() {
+                let new_pos = find_next_word_start(
+                    current_input,
+                    state.current_cursor_pos(),
+                );
+                let final_pos = new_pos.min(current_input.len());
+                state.set_current_cursor_pos(final_pos);
+                *ideal_cursor_column = final_pos;
+            }
+            Ok("".to_string())
+        }
+
+        "move_word_end" => {
+            let current_input = state.get_current_input();
+            if !current_input.is_empty() {
+                let current_pos = state.current_cursor_pos();
+                let new_pos = find_word_end(current_input, current_pos);
+
+                let final_pos = if new_pos == current_pos {
+                    find_word_end(current_input, new_pos + 1)
+                } else {
+                    new_pos
+                };
+
+                let max_valid_index = current_input.len().saturating_sub(1);
+                let clamped_pos = final_pos.min(max_valid_index);
+                state.set_current_cursor_pos(clamped_pos);
+                *ideal_cursor_column = clamped_pos;
+            }
+            Ok("".to_string())
+        }
+
+        "move_word_prev" => {
+            let current_input = state.get_current_input();
+            if !current_input.is_empty() {
+                let new_pos = find_prev_word_start(
+                    current_input,
+                    state.current_cursor_pos(),
+                );
+                state.set_current_cursor_pos(new_pos);
+                *ideal_cursor_column = new_pos;
+            }
+            Ok("".to_string())
+        }
+
+        "move_word_end_prev" => {
+            let current_input = state.get_current_input();
+            if !current_input.is_empty() {
+                let new_pos = find_prev_word_end(
+                    current_input,
+                    state.current_cursor_pos(),
+                );
+                state.set_current_cursor_pos(new_pos);
+                *ideal_cursor_column = new_pos;
+            }
+            Ok("Moved to previous word end".to_string())
+        }
+
+        _ => Ok(format!("Unknown or unhandled edit action: {}", action)),
+    }
+}
+
+#[derive(PartialEq)]
+enum CharType {
+    Whitespace,
+    Alphanumeric,
+    Punctuation,
+}
+
+fn get_char_type(c: char) -> CharType {
+    if c.is_whitespace() {
+        CharType::Whitespace
+    } else if c.is_alphanumeric() {
+        CharType::Alphanumeric
+    } else {
+        CharType::Punctuation
+    }
+}
+
+fn find_next_word_start(text: &str, current_pos: usize) -> usize {
+    let chars: Vec<char> = text.chars().collect();
+    let len = chars.len();
+    if len == 0 || current_pos >= len {
+        return len;
+    }
+
+    let mut pos = current_pos;
+    let initial_type = get_char_type(chars[pos]);
+
+    while pos < len && get_char_type(chars[pos]) == initial_type {
+        pos += 1;
+    }
+
+    while pos < len && get_char_type(chars[pos]) == CharType::Whitespace {
+        pos += 1;
+    }
+
+    pos
+}
+
+fn find_word_end(text: &str, current_pos: usize) -> usize {
+    let chars: Vec<char> = text.chars().collect();
+    let len = chars.len();
+    if len == 0 {
+        return 0;
+    }
+
+    let mut pos = current_pos.min(len - 1);
+
+    if get_char_type(chars[pos]) == CharType::Whitespace {
+        pos = find_next_word_start(text, pos);
+    }
+
+    if pos >= len {
+        return len.saturating_sub(1);
+    }
+
+    let word_type = get_char_type(chars[pos]);
+    while pos < len && get_char_type(chars[pos]) == word_type {
+        pos += 1;
+    }
+
+    pos.saturating_sub(1).min(len.saturating_sub(1))
+}
+
+fn find_prev_word_start(text: &str, current_pos: usize) -> usize {
+    let chars: Vec<char> = text.chars().collect();
+    if chars.is_empty() || current_pos == 0 {
+        return 0;
+    }
+
+    let mut pos = current_pos.saturating_sub(1);
+
+    while pos > 0 && get_char_type(chars[pos]) == CharType::Whitespace {
+        pos -= 1;
+    }
+
+    if pos == 0 && get_char_type(chars[pos]) == CharType::Whitespace {
+        return 0;
+    }
+
+    let word_type = get_char_type(chars[pos]);
+    while pos > 0 && get_char_type(chars[pos - 1]) == word_type {
+        pos -= 1;
+    }
+
+    pos
+}
+
+fn find_prev_word_end(text: &str, current_pos: usize) -> usize {
+    let chars: Vec<char> = text.chars().collect();
+    let len = chars.len();
+    if len == 0 || current_pos == 0 {
+        return 0;
+    }
+
+    let mut pos = current_pos.saturating_sub(1);
+
+    while pos > 0 && get_char_type(chars[pos]) == CharType::Whitespace {
+        pos -= 1;
+    }
+
+    if pos == 0 && get_char_type(chars[pos]) == CharType::Whitespace {
+        return 0;
+    }
+    if pos == 0 && get_char_type(chars[pos]) != CharType::Whitespace {
+        return 0;
+    }
+
+    let word_type = get_char_type(chars[pos]);
+    while pos > 0 && get_char_type(chars[pos - 1]) == word_type {
+        pos -= 1;
+    }
+
+    while pos > 0 && get_char_type(chars[pos - 1]) == CharType::Whitespace {
+        pos -= 1;
+    }
+
+    if pos > 0 {
+        pos - 1
+    } else {
+        0
+    }
+}
diff --git a/client/src/modes/canvas/edit.rs b/client/src/modes/canvas/edit.rs
index 0a0a4ae..fb712e2 100644
--- a/client/src/modes/canvas/edit.rs
+++ b/client/src/modes/canvas/edit.rs
@@ -1,8 +1,10 @@
+// src/modes/canvas/edit.rs
+
 use crate::config::binds::config::Config;
 use crate::services::grpc_client::GrpcClient;
 use crate::state::canvas_state::CanvasState;
 use crate::state::pages::form::FormState;
-use crate::functions::common::form::{revert, save};
+use crate::functions::modes::edit::form_e;
 use crossterm::event::{KeyCode, KeyEvent};
 use std::any::Any;
 
@@ -34,7 +36,7 @@ pub async fn handle_edit_event_internal<S: CanvasState + Any>(
         key.modifiers,
     ) {
         if action == "save" || action == "revert" {
-            return execute_common_action(
+            return form_e::execute_common_action(
                 action,
                 state,
                 grpc_client,
@@ -46,10 +48,8 @@ pub async fn handle_edit_event_internal<S: CanvasState + Any>(
         }
     }
 
-    if let Some(action) =
-        config.get_edit_action_for_key(key.code, key.modifiers)
-    {
-        return execute_edit_action(
+    if let Some(action) = config.get_edit_action_for_key(key.code, key.modifiers) {
+        return form_e::execute_edit_action(
             action,
             key,
             state,
@@ -63,7 +63,7 @@ pub async fn handle_edit_event_internal<S: CanvasState + Any>(
     }
 
     if let KeyCode::Char(c) = key.code {
-        return execute_edit_action(
+        return form_e::execute_edit_action(
             "insert_char",
             key,
             state,
@@ -78,416 +78,3 @@ pub async fn handle_edit_event_internal<S: CanvasState + Any>(
 
     Ok(command_message.clone())
 }
-
-async fn execute_common_action<S: CanvasState + Any>(
-    action: &str,
-    state: &mut S,
-    grpc_client: &mut GrpcClient,
-    is_saved: &mut bool,
-    current_position: &mut u64,
-    total_count: u64,
-) -> Result<String, Box<dyn std::error::Error>> {
-    match action {
-        "save" | "revert" => {
-            if !state.has_unsaved_changes() {
-                return Ok("No changes to save or revert.".to_string());
-            }
-            if let Some(form_state) =
-                (state as &mut dyn Any).downcast_mut::<FormState>()
-            {
-                match action {
-                    "save" => {
-                        save(
-                            form_state,
-                            grpc_client,
-                            is_saved,
-                            current_position,
-                            total_count,
-                        )
-                        .await
-                    }
-                    "revert" => {
-                        revert(
-                            form_state,
-                            grpc_client,
-                            current_position,
-                            total_count,
-                        )
-                        .await
-                    }
-                    _ => unreachable!(),
-                }
-            } else {
-                Ok(format!(
-                    "Action '{}' not implemented for this state type.",
-                    action
-                ))
-            }
-        }
-        _ => Ok(format!("Common action '{}' not handled here.", action)),
-    }
-}
-
-async fn execute_edit_action<S: CanvasState>(
-    action: &str,
-    key: KeyEvent,
-    state: &mut S,
-    ideal_cursor_column: &mut usize,
-    _grpc_client: &mut GrpcClient,
-    _is_saved: &mut bool,
-    _current_position: &mut u64,
-    _total_count: u64,
-) -> Result<String, Box<dyn std::error::Error>> {
-    match action {
-        "insert_char" => {
-            if let KeyCode::Char(c) = key.code {
-                let cursor_pos = state.current_cursor_pos();
-                let field_value = state.get_current_input_mut();
-                let mut chars: Vec<char> = field_value.chars().collect();
-                if cursor_pos <= chars.len() {
-                    chars.insert(cursor_pos, c);
-                    *field_value = chars.into_iter().collect();
-                    state.set_current_cursor_pos(cursor_pos + 1);
-                    state.set_has_unsaved_changes(true);
-                    *ideal_cursor_column = state.current_cursor_pos();
-                }
-            } else {
-                return Ok("Error: insert_char called without a char key."
-                    .to_string());
-            }
-            Ok("".to_string())
-        }
-
-        "delete_char_backward" => {
-            if state.current_cursor_pos() > 0 {
-                let cursor_pos = state.current_cursor_pos();
-                let field_value = state.get_current_input_mut();
-                let mut chars: Vec<char> = field_value.chars().collect();
-                if cursor_pos <= chars.len() {
-                    chars.remove(cursor_pos - 1);
-                    *field_value = chars.into_iter().collect();
-                    let new_pos = cursor_pos - 1;
-                    state.set_current_cursor_pos(new_pos);
-                    state.set_has_unsaved_changes(true);
-                    *ideal_cursor_column = new_pos;
-                }
-            }
-            Ok("".to_string())
-        }
-        "delete_char_forward" => {
-            let cursor_pos = state.current_cursor_pos();
-            let field_value = state.get_current_input_mut();
-            let mut chars: Vec<char> = field_value.chars().collect();
-            if cursor_pos < chars.len() {
-                chars.remove(cursor_pos);
-                *field_value = chars.into_iter().collect();
-                state.set_has_unsaved_changes(true);
-                *ideal_cursor_column = cursor_pos;
-            }
-            Ok("".to_string())
-        }
-        "next_field" => {
-            let num_fields = state.fields().len();
-            if num_fields > 0 {
-                let current_field = state.current_field();
-                let new_field = (current_field + 1) % num_fields;
-                state.set_current_field(new_field);
-                let current_input = state.get_current_input();
-                let max_pos = current_input.len();
-                state.set_current_cursor_pos(
-                    (*ideal_cursor_column).min(max_pos),
-                );
-            }
-            Ok("".to_string())
-        }
-        "prev_field" => {
-            let num_fields = state.fields().len();
-            if num_fields > 0 {
-                let current_field = state.current_field();
-                let new_field = if current_field == 0 {
-                    num_fields - 1
-                } else {
-                    current_field - 1
-                };
-                state.set_current_field(new_field);
-                let current_input = state.get_current_input();
-                let max_pos = current_input.len();
-                state.set_current_cursor_pos(
-                    (*ideal_cursor_column).min(max_pos),
-                );
-            }
-            Ok("".to_string())
-        }
-
-        "move_left" => {
-            let new_pos = state.current_cursor_pos().saturating_sub(1);
-            state.set_current_cursor_pos(new_pos);
-            *ideal_cursor_column = new_pos;
-            Ok("".to_string())
-        }
-        "move_right" => {
-            let current_input = state.get_current_input();
-            let current_pos = state.current_cursor_pos();
-            if current_pos < current_input.len() {
-                let new_pos = current_pos + 1;
-                state.set_current_cursor_pos(new_pos);
-                *ideal_cursor_column = new_pos;
-            }
-            Ok("".to_string())
-        }
-        "move_up" => {
-            let num_fields = state.fields().len();
-            if num_fields > 0 {
-                let current_field = state.current_field();
-                let new_field = if current_field == 0 {
-                    num_fields - 1
-                } else {
-                    current_field - 1
-                };
-                state.set_current_field(new_field);
-                let current_input = state.get_current_input();
-                let max_pos = current_input.len();
-                state.set_current_cursor_pos(
-                    (*ideal_cursor_column).min(max_pos),
-                );
-            }
-            Ok("".to_string())
-        }
-        "move_down" => {
-            let num_fields = state.fields().len();
-            if num_fields > 0 {
-                let new_field = (state.current_field() + 1) % num_fields;
-                state.set_current_field(new_field);
-                let current_input = state.get_current_input();
-                let max_pos = current_input.len();
-                state.set_current_cursor_pos(
-                    (*ideal_cursor_column).min(max_pos),
-                );
-            }
-            Ok("".to_string())
-        }
-        "move_line_start" => {
-            state.set_current_cursor_pos(0);
-            *ideal_cursor_column = 0;
-            Ok("".to_string())
-        }
-        "move_line_end" => {
-            let current_input = state.get_current_input();
-            let new_pos = current_input.len();
-            state.set_current_cursor_pos(new_pos);
-            *ideal_cursor_column = new_pos;
-            Ok("".to_string())
-        }
-        "move_first_line" => {
-            let num_fields = state.fields().len();
-            if num_fields > 0 {
-                state.set_current_field(0);
-                let current_input = state.get_current_input();
-                let max_pos = current_input.len();
-                state.set_current_cursor_pos(
-                    (*ideal_cursor_column).min(max_pos),
-                );
-            }
-            Ok("Moved to first field".to_string())
-        }
-        "move_last_line" => {
-            let num_fields = state.fields().len();
-            if num_fields > 0 {
-                let new_field = num_fields - 1;
-                state.set_current_field(new_field);
-                let current_input = state.get_current_input();
-                let max_pos = current_input.len();
-                state.set_current_cursor_pos(
-                    (*ideal_cursor_column).min(max_pos),
-                );
-            }
-            Ok("Moved to last field".to_string())
-        }
-        "move_word_next" => {
-            let current_input = state.get_current_input();
-            if !current_input.is_empty() {
-                let new_pos = find_next_word_start(
-                    current_input,
-                    state.current_cursor_pos(),
-                );
-                let final_pos = new_pos.min(current_input.len());
-                state.set_current_cursor_pos(final_pos);
-                *ideal_cursor_column = final_pos;
-            }
-            Ok("".to_string())
-        }
-        "move_word_end" => {
-            let current_input = state.get_current_input();
-            if !current_input.is_empty() {
-                let current_pos = state.current_cursor_pos();
-                let new_pos = find_word_end(current_input, current_pos);
-
-                // If already at word end, jump to next word's end
-                let final_pos = if new_pos == current_pos {
-                    find_word_end(current_input, new_pos + 1)
-                } else {
-                    new_pos
-                };
-
-                let max_valid_index = current_input.len().saturating_sub(1);
-                let clamped_pos = final_pos.min(max_valid_index);
-                state.set_current_cursor_pos(clamped_pos);
-                *ideal_cursor_column = clamped_pos;
-            }
-            Ok("".to_string())
-        }
-        "move_word_prev" => {
-            let current_input = state.get_current_input();
-            if !current_input.is_empty() {
-                let new_pos = find_prev_word_start(
-                    current_input,
-                    state.current_cursor_pos(),
-                );
-                state.set_current_cursor_pos(new_pos);
-                *ideal_cursor_column = new_pos;
-            }
-            Ok("".to_string())
-        }
-        "move_word_end_prev" => {
-            let current_input = state.get_current_input();
-            if !current_input.is_empty() {
-                let new_pos = find_prev_word_end(
-                    current_input,
-                    state.current_cursor_pos(),
-                );
-                state.set_current_cursor_pos(new_pos);
-                *ideal_cursor_column = new_pos;
-            }
-            Ok("Moved to previous word end".to_string())
-        }
-
-        _ => Ok(format!("Unknown or unhandled edit action: {}", action)),
-    }
-}
-
-#[derive(PartialEq)]
-enum CharType {
-    Whitespace,
-    Alphanumeric,
-    Punctuation,
-}
-
-fn get_char_type(c: char) -> CharType {
-    if c.is_whitespace() {
-        CharType::Whitespace
-    } else if c.is_alphanumeric() {
-        CharType::Alphanumeric
-    } else {
-        CharType::Punctuation
-    }
-}
-
-fn find_next_word_start(text: &str, current_pos: usize) -> usize {
-    let chars: Vec<char> = text.chars().collect();
-    let len = chars.len();
-    if len == 0 || current_pos >= len {
-        return len;
-    }
-
-    let mut pos = current_pos;
-    let initial_type = get_char_type(chars[pos]);
-
-    while pos < len && get_char_type(chars[pos]) == initial_type {
-        pos += 1;
-    }
-
-    while pos < len && get_char_type(chars[pos]) == CharType::Whitespace {
-        pos += 1;
-    }
-
-    pos
-}
-
-fn find_word_end(text: &str, current_pos: usize) -> usize {
-    let chars: Vec<char> = text.chars().collect();
-    let len = chars.len();
-    if len == 0 {
-        return 0;
-    }
-
-    let mut pos = current_pos.min(len - 1);
-
-    // If already at whitespace, find next word first
-    if get_char_type(chars[pos]) == CharType::Whitespace {
-        pos = find_next_word_start(text, pos);
-    }
-
-    // Now find end of current/next word
-    if pos >= len {
-        return len.saturating_sub(1);
-    }
-
-    let word_type = get_char_type(chars[pos]);
-    while pos < len && get_char_type(chars[pos]) == word_type {
-        pos += 1;
-    }
-
-    // Return last character of the word
-    pos.saturating_sub(1).min(len.saturating_sub(1))
-}
-
-fn find_prev_word_start(text: &str, current_pos: usize) -> usize {
-    let chars: Vec<char> = text.chars().collect();
-    if chars.is_empty() || current_pos == 0 {
-        return 0;
-    }
-
-    let mut pos = current_pos.saturating_sub(1);
-
-    while pos > 0 && get_char_type(chars[pos]) == CharType::Whitespace {
-        pos -= 1;
-    }
-
-    if pos == 0 && get_char_type(chars[pos]) == CharType::Whitespace {
-        return 0;
-    }
-
-    let word_type = get_char_type(chars[pos]);
-    while pos > 0 && get_char_type(chars[pos - 1]) == word_type {
-        pos -= 1;
-    }
-
-    pos
-}
-
-fn find_prev_word_end(text: &str, current_pos: usize) -> usize {
-    let chars: Vec<char> = text.chars().collect();
-    let len = chars.len();
-    if len == 0 || current_pos == 0 {
-        return 0;
-    }
-
-    let mut pos = current_pos.saturating_sub(1);
-
-    while pos > 0 && get_char_type(chars[pos]) == CharType::Whitespace {
-        pos -= 1;
-    }
-
-    if pos == 0 && get_char_type(chars[pos]) == CharType::Whitespace {
-        return 0;
-    }
-    if pos == 0 && get_char_type(chars[pos]) != CharType::Whitespace {
-        return 0;
-    }
-
-    let word_type = get_char_type(chars[pos]);
-    while pos > 0 && get_char_type(chars[pos - 1]) == word_type {
-        pos -= 1;
-    }
-
-    while pos > 0 && get_char_type(chars[pos - 1]) == CharType::Whitespace {
-        pos -= 1;
-    }
-
-    if pos > 0 {
-        pos - 1
-    } else {
-        0
-    }
-}
-