From 37b08fdd109c921ab8e5c74e555695c53ebb75c2 Mon Sep 17 00:00:00 2001
From: filipriec <filippriec@gmail.com>
Date: Fri, 28 Mar 2025 14:26:18 +0100
Subject: [PATCH] implementation of canvas for multiple pages step 1

---
 client/src/components/handlers/canvas.rs |  8 ++---
 client/src/state/canvas_state.rs         | 44 ++++++++++++++++++++++++
 client/src/state/mod.rs                  |  1 +
 3 files changed, 49 insertions(+), 4 deletions(-)
 create mode 100644 client/src/state/canvas_state.rs

diff --git a/client/src/components/handlers/canvas.rs b/client/src/components/handlers/canvas.rs
index ac4d5e8..cd1c64d 100644
--- a/client/src/components/handlers/canvas.rs
+++ b/client/src/components/handlers/canvas.rs
@@ -8,12 +8,12 @@ use ratatui::{
     prelude::Alignment,
 };
 use crate::config::colors::themes::Theme;
-use crate::state::pages::form::FormState;
+use crate::state::canvas_state::CanvasState;
 
 pub fn render_canvas(
     f: &mut Frame,
     area: Rect,
-    form_state: &FormState,
+    form_state: &impl CanvasState,
     fields: &[&str],
     current_field: &usize,
     inputs: &[&String],
@@ -30,7 +30,7 @@ pub fn render_canvas(
     let input_container = Block::default()
         .borders(Borders::ALL)
         .border_style(if is_edit_mode {
-            form_state.has_unsaved_changes.then(|| theme.warning).unwrap_or(theme.accent)
+            form_state.has_unsaved_changes().then(|| theme.warning).unwrap_or(theme.accent)
         } else {
             theme.secondary
         })
@@ -81,7 +81,7 @@ pub fn render_canvas(
         f.render_widget(input_display, input_rows[i]);
 
         if is_active {
-            let cursor_x = input_rows[i].x + form_state.current_cursor_pos as u16;
+            let cursor_x = input_rows[i].x + form_state.current_cursor_pos() as u16;
             let cursor_y = input_rows[i].y;
             f.set_cursor_position((cursor_x, cursor_y));
         }
diff --git a/client/src/state/canvas_state.rs b/client/src/state/canvas_state.rs
new file mode 100644
index 0000000..be48f39
--- /dev/null
+++ b/client/src/state/canvas_state.rs
@@ -0,0 +1,44 @@
+// src/state/canvas_state.rs
+
+use crate::state::pages::form::FormState;
+
+pub trait CanvasState {
+    fn current_field(&self) -> usize;
+    fn current_cursor_pos(&self) -> usize;
+    fn has_unsaved_changes(&self) -> bool;
+    fn inputs(&self) -> Vec<&String>;
+    fn get_current_input(&self) -> &str;
+    fn get_current_input_mut(&mut self) -> &mut String;
+}
+
+// Implement for FormState (keep existing form.rs code and add this)
+impl CanvasState for FormState {
+    fn current_field(&self) -> usize {
+        self.current_field
+    }
+
+    fn current_cursor_pos(&self) -> usize {
+        self.current_cursor_pos
+    }
+
+    fn has_unsaved_changes(&self) -> bool {
+        self.has_unsaved_changes
+    }
+
+    fn inputs(&self) -> Vec<&String> {
+        self.values.iter().collect()
+    }
+
+    fn get_current_input(&self) -> &str {
+        self.values
+            .get(self.current_field)
+            .map(|s| s.as_str())
+            .unwrap_or("")
+    }
+
+    fn get_current_input_mut(&mut self) -> &mut String {
+        self.values
+            .get_mut(self.current_field)
+            .expect("Invalid current_field index")
+    }
+}
diff --git a/client/src/state/mod.rs b/client/src/state/mod.rs
index 6dc5624..9e15dce 100644
--- a/client/src/state/mod.rs
+++ b/client/src/state/mod.rs
@@ -1,3 +1,4 @@
 // src/state/mod.rs
 pub mod state;
 pub mod pages;
+pub mod canvas_state;