/*
 *  catalogHelpers.ts
 *  Zyquo Cloud Web
 *
 *  Author: Simon-Pierre Boucher
 *  Mail: contact@spboucher.ai
 *
 *  Catalog conveniences shared by the store and UI: re-exports of the ported
 *  catalog queries plus cost/estimation helpers.
 */

import { pricingCost, type AIModel, type TokenUsage } from '../types'

export { CATALOG, cheapestModel, defaultModel, findModel, modelsFor, rankModel } from '../providers/catalog'

/** Estimated USD cost of a usage record for a model (0 when unpriced). */
export function pricedCost(model: AIModel, usage: TokenUsage): number {
  if (!model.pricing) return 0
  return pricingCost(model.pricing, usage.inputTokens, usage.outputTokens)
}

/** Rough token estimate for context-window accounting (≈4 chars/token). */
export function estimateTokens(text: string): number {
  return Math.ceil(text.length / 4)
}

/** "$1.25 / $10" per-MTok badge, or "—" when unpriced. */
export function priceBadge(model: AIModel): string {
  if (!model.pricing) return '—'
  const fmt = (v: number) => (v >= 1 ? `$${v.toFixed(2).replace(/\.?0+$/, '')}` : `$${v}`)
  return `${fmt(model.pricing.inputPerMTok)} / ${fmt(model.pricing.outputPerMTok)}`
}

/** "$0.0042" style cost display. */
export function costLabel(cost: number): string {
  if (cost <= 0) return ''
  return `~$${cost.toFixed(4)}`
}