feat: transformation buttons

crates/ascend/src/models/semantics.rs

@@ -23,21 +23,37 @@ impl Pattern {
     }
 
     #[must_use]
-    pub fn apply_transformation(&self, transformation: Transformation) -> Self {
-        let mut holds = self.clone();
-        if transformation.shift_right > 0 {
-            holds = holds.shift_right(transformation.shift_right);
+    pub fn shift_left(&self, shift: u64) -> Option<Self> {
+        // Out of bounds check
+        if let Some(min_col) = self.pattern.iter().map(|(hold_position, _)| hold_position.col).min() {
+            if shift > min_col {
+                return None;
+            }
         }
-        if transformation.mirror {
-            holds = holds.mirror();
-        }
-        holds
+
+        let pattern: BTreeMap<HoldPosition, HoldRole> = self
+            .pattern
+            .iter()
+            .map(|(hold_position, hold_role)| {
+                let mut hold_position = hold_position.clone();
+                hold_position.col -= shift;
+                (hold_position, *hold_role)
+            })
+            .collect();
+
+        Some(Self { pattern })
     }
 
     #[must_use]
-    pub fn shift_right(&self, shift: u64) -> Self {
-        let mut pattern = self.clone();
-        pattern.pattern = pattern
+    pub fn shift_right(&self, wall_dimensions: WallDimensions, shift: u64) -> Option<Self> {
+        // Out of bounds check
+        if let Some(max_col) = self.pattern.iter().map(|(hold_position, _)| hold_position.col).max() {
+            if max_col + shift >= wall_dimensions.cols {
+                return None;
+            }
+        }
+
+        let pattern: BTreeMap<HoldPosition, HoldRole> = self
             .pattern
             .iter()
             .map(|(hold_position, hold_role)| {
@@ -46,7 +62,8 @@ impl Pattern {
                 (hold_position, *hold_role)
             })
             .collect();
-        pattern
+
+        Some(Self { pattern })
     }
 
     #[must_use]

crates/ascend/src/pages/wall.rs

@@ -187,7 +187,6 @@ fn View() -> impl IntoView {
                     <Separator />
 
                     <div class="flex flex-row justify-around">
-                        <Transformations />
                         <NextProblemButton />
                     </div>
                 </Section>
@@ -196,7 +195,8 @@ fn View() -> impl IntoView {
 
                 <Section title="Current problem">
                     {move || ctx.problem.get().map(|problem| view! { <ProblemInfo problem /> })}
-                    <Separator /> <AttemptRadioGroup /> <Separator /> <History />
+                    <Separator /> <Transformations /> <Separator /><AttemptRadioGroup />
+                    <Separator /> <History />
                 </Section>
             </div>
 
@@ -214,25 +214,49 @@ fn Transformations() -> impl IntoView {
 
     let ctx = use_context::<Context>().unwrap();
 
-    let on_left = Callback::new(move |()| {
-        tracing::debug!("left");
+    let left = Signal::derive(move || {
+        let mut problem = ctx.problem.get()?;
+        let new_pattern = problem.pattern.shift_left(1)?;
+        problem.pattern = new_pattern;
+        Some(problem)
     });
-    let on_mirror = Callback::new(move |()| {
+
+    let right = Signal::derive(move || {
+        let mut problem = ctx.problem.get()?;
+        let wall_dimensions = ctx.wall.read().wall_dimensions;
+        let new_pattern = problem.pattern.shift_right(wall_dimensions, 1)?;
+        problem.pattern = new_pattern;
+        Some(problem)
+    });
+
+    let on_click_left = Callback::new(move |()| {
+        tracing::debug!("left");
+        if let Some(problem) = left.get() {
+            ctx.cb_set_problem.run(problem);
+        }
+    });
+    let on_click_mirror = Callback::new(move |()| {
         tracing::debug!("mirror");
         if let Some(mut problem) = ctx.problem.get() {
             problem.pattern = problem.pattern.mirror();
             ctx.cb_set_problem.run(problem);
         }
     });
-    let on_right = Callback::new(move |()| {
+    let on_click_right = Callback::new(move |()| {
         tracing::debug!("right");
+        if let Some(problem) = right.get() {
+            ctx.cb_set_problem.run(problem);
+        }
     });
 
+    let left_disabled = Signal::derive(move || left.read().is_none());
+    let right_disabled = Signal::derive(move || right.read().is_none());
+
     view! {
         <div class="flex flex-row gap-2 justify-center">
-            <Button icon=Icon::ChevronLeft disabled=true on_click=on_left />
-            <Button icon=Icon::CodeBracketSquare on_click=on_mirror />
-            <Button icon=Icon::ChevronRight on_click=on_right />
+            <Button icon=Icon::ChevronLeft disabled=left_disabled on_click=on_click_left />
+            <Button icon=Icon::CodeBracketSquare on_click=on_click_mirror />
+            <Button icon=Icon::ChevronRight disabled=right_disabled on_click=on_click_right />
         </div>
     }
 }
@@ -261,7 +285,7 @@ fn NextProblemButton() -> impl IntoView {
     let ctx = use_context::<Context>().unwrap();
 
     let on_click = Callback::new(move |_| ctx.cb_next_problem.run(()));
-    view! { <Button icon=Icon::ArrowPath text="Next problem" on_click color=Gradient::PurpleBlue /> }
+    view! { <Button icon=Icon::ArrowPath text="Randomize" on_click color=Gradient::PurpleBlue /> }
 }
 
 #[component]