Update migrated js to ts and shadcn

src/constants/defaults.ts

@@ -0,0 +1,79 @@
+// Application constants
+export const LOCAL_STORAGE_KEY = 'medPlanAssistantState_v5';
+export const LDX_TO_DAMPH_CONVERSION_FACTOR = 0.2948;
+
+// Type definitions
+export interface PkParams {
+  damph: { halfLife: string };
+  ldx: { halfLife: string; absorptionRate: string };
+}
+
+export interface Dose {
+  time: string;
+  dose: string;
+  label: string;
+}
+
+export interface Deviation extends Dose {
+  dayOffset?: number;
+  isAdditional: boolean;
+}
+
+export interface SteadyStateConfig {
+  daysOnMedication: string;
+}
+
+export interface TherapeuticRange {
+  min: string;
+  max: string;
+}
+
+export interface UiSettings {
+  showDayTimeOnXAxis: boolean;
+  chartView: 'damph' | 'ldx' | 'both';
+  yAxisMin: string;
+  yAxisMax: string;
+  simulationDays: string;
+  displayedDays: string;
+}
+
+export interface AppState {
+  pkParams: PkParams;
+  doses: Dose[];
+  steadyStateConfig: SteadyStateConfig;
+  therapeuticRange: TherapeuticRange;
+  doseIncrement: string;
+  uiSettings: UiSettings;
+}
+
+export interface ConcentrationPoint {
+  timeHours: number;
+  ldx: number;
+  damph: number;
+}
+
+// Default application state
+export const getDefaultState = (): AppState => ({
+  pkParams: {
+    damph: { halfLife: '11' },
+    ldx: { halfLife: '0.8', absorptionRate: '1.5' },
+  },
+  doses: [
+    { time: '06:30', dose: '25', label: 'morning' },
+    { time: '12:30', dose: '10', label: 'midday' },
+    { time: '17:00', dose: '10', label: 'afternoon' },
+    { time: '22:00', dose: '10', label: 'evening' },
+    { time: '01:00', dose: '0', label: 'night' },
+  ],
+  steadyStateConfig: { daysOnMedication: '7' },
+  therapeuticRange: { min: '10.5', max: '11.5' },
+  doseIncrement: '2.5',
+  uiSettings: {
+    showDayTimeOnXAxis: true,
+    chartView: 'both',
+    yAxisMin: '0',
+    yAxisMax: '16',
+    simulationDays: '3',
+    displayedDays: '2',
+  }
+});