feat: Creating the base of application

frontend/js/calculator.js

@@ -0,0 +1,38 @@
+import { CalculatorEngine } from '../pkCore.js';
+
+export function initCalculatorUI() {
+  const weightInput = document.getElementById('calcWeight');
+  const concInput = document.getElementById('calcConc');
+
+  // Conversion Bolus
+  const mgInput = document.getElementById('calcMg');
+  const mgKgInput = document.getElementById('calcMgKg');
+
+  // Conversion Perfusion
+  const mgKgHInput = document.getElementById('calcMgKgH');
+  const ugKgMinInput = document.getElementById('calcUgKgMin');
+
+  // 1. Bolus mg <-> mg/kg
+  mgInput.addEventListener('input', () => {
+    const w = parseFloat(weightInput.value) || 70;
+    const mg = parseFloat(mgInput.value) || 0;
+    mgKgInput.value = CalculatorEngine.mgToMgKg(mg, w).toFixed(2);
+  });
+
+  mgKgInput.addEventListener('input', () => {
+    const w = parseFloat(weightInput.value) || 70;
+    const mgKg = parseFloat(mgKgInput.value) || 0;
+    mgInput.value = CalculatorEngine.mgKgToMg(mgKg, w).toFixed(1);
+  });
+
+  // 2. Vitesse mg/kg/h <-> µg/kg/min
+  mgKgHInput.addEventListener('input', () => {
+    const mgKgH = parseFloat(mgKgHInput.value) || 0;
+    ugKgMinInput.value = CalculatorEngine.mgKgHToMicrogKgMin(mgKgH).toFixed(1);
+  });
+
+  ugKgMinInput.addEventListener('input', () => {
+    const ugKgMin = parseFloat(ugKgMinInput.value) || 0;
+    mgKgHInput.value = CalculatorEngine.microgKgMinToMgKgH(ugKgMin).toFixed(2);
+  });
+}