feat(viz): dp coin change

2025-09-01 21:29:23 +01:00
parent ed03d3251e
commit cf0c2153db
7 changed files with 1436 additions and 1 deletions
--- a/frontend/src/components/visualizations-new/algorithms/coin-change.tsx
+++ b/frontend/src/components/visualizations-new/algorithms/coin-change.tsx
@@ -0,0 +1,81 @@
+'use client';
+
+import { useVisualization } from '@/lib/visualizations/use-visualization';
+import type { AlgorithmDefinition } from '@/lib/visualizations/types';
+import { VisualizationContainer } from '../core/visualization-container';
+import { ArrayView } from '../data-structures/array-view';
+import { GridView } from '../data-structures/grid-view';
+import { CalculationBubble } from '../primitives/calculation-bubble';
+
+interface CoinChangeVisualizationProps {
+  algorithm: AlgorithmDefinition;
+  className?: string;
+}
+
+export function CoinChangeVisualization({
+  algorithm,
+  className,
+}: CoinChangeVisualizationProps) {
+  const {
+    currentStep,
+    currentStepIndex,
+    totalSteps,
+    playback,
+    controls,
+    currentPhase,
+    progress,
+  } = useVisualization(algorithm);
+
+  const { dataState } = currentStep;
+  const coinsArray = dataState.arrays.find((a) => a.id === 'coins') ?? null;
+  const dpGrid = dataState.grids?.[0] ?? null;
+  const calculation = dataState.calculations[0] ?? null;
+  const gridPointers = dataState.gridPointers ?? [];
+
+  return (
+    <VisualizationContainer
+      title={algorithm.title}
+      pattern={algorithm.pattern}
+      code={algorithm.code}
+      currentLine={currentStep.codeLine}
+      highlightLines={currentStep.codeHighlightLines}
+      explanation={currentStep.explanation}
+      decision={currentStep.decision}
+      phase={currentPhase}
+      variables={dataState.variables}
+      currentStepIndex={currentStepIndex}
+      totalSteps={totalSteps}
+      isPlaying={playback.isPlaying}
+      speed={playback.speed}
+      controls={controls}
+      progress={progress}
+      className={className}
+    >
+      <div className="flex flex-col items-center gap-4">
+        {/* Calculation bubble */}
+        <div className="flex h-8 items-center justify-center">
+          <CalculationBubble calculation={calculation} />
+        </div>
+
+        {/* Coins array */}
+        {coinsArray && (
+          <ArrayView
+            array={coinsArray}
+            pointers={[]}
+            elementSize="sm"
+          />
+        )}
+
+        {/* DP Table grid */}
+        {dpGrid && (
+          <GridView
+            grid={dpGrid}
+            pointers={gridPointers}
+            cellSize="sm"
+            showColLabels={true}
+          />
+        )}
+      </div>
+    </VisualizationContainer>
+  );
+}