// ─── Shared Formatting Utilities ─────────────────────────────────────────────────
// Utility functions for consistent formatting across components

import { ELEMENTS } from '@/lib/game/constants';
import type { SpellCost } from '@/lib/game/types';

// Re-export number formatting functions from computed-stats.ts
export { fmt, fmtDec } from './computed-stats';

/**
 * Format a spell cost for display
 */
export function formatSpellCost(cost: SpellCost): string {
  if (cost.type === 'raw') {
    return `${cost.amount} raw`;
  }
  const elemDef = ELEMENTS[cost.element || ''];
  return `${cost.amount} ${elemDef?.sym || '?'}`;
}

/**
 * Get the display color for a spell cost
 */
export function getSpellCostColor(cost: SpellCost): string {
  if (cost.type === 'raw') {
    return '#60A5FA'; // Blue for raw mana
  }
  return ELEMENTS[cost.element || '']?.color || '#9CA3AF';
}

/**
 * Format study time in hours to human-readable string
 */
export function formatStudyTime(hours: number): string {
  if (hours < 1) return `${Math.round(hours * 60)}m`;
  return `${hours.toFixed(1)}h`;
}

/**
 * Format time (hour of day) to HH:MM format
 */
export function formatHour(hour: number): string {
  const h = Math.floor(hour);
  const m = Math.floor((hour % 1) * 60);
  return `${h.toString().padStart(2, '0')}:${m.toString().padStart(2, '0')}`;
}