/**
 * Shared UI helpers of the decisions screens (registry + fiche) — v2.
 * Labels that complement app/lexicon.ts locally (short weight forms, chain
 * kinds, circle-kind iconography) live here; the lexicon stays the single
 * source for everything it already names.
 */

import type {
  ChainKind,
  CircleKind,
  Decision,
  DecisionStatus,
  VoteSession,
  Weight,
} from '~/types/domain'
import { FROZEN_LABEL, STATUS_LABELS } from '~/lexicon'

/** Short weight forms — registry pills and card metadata. */
export const WEIGHT_SHORT: Record<Weight, string> = {
  light: 'léger',
  binding: 'engageant',
  structural: 'structurant',
}

/** Chain kinds in plain French (fiche chain block). */
export const CHAIN_LABELS: Record<ChainKind, string> = {
  ratification: 'ratification',
  revision: 'révision',
  revocation: 'révocation',
  element: 'élément',
}

/** Circle kind iconography — lieu / thème / équipe (never a right). */
export const KIND_ICONS: Record<CircleKind, string> = {
  place: 'i-lucide-map-pin',
  theme: 'i-lucide-tag',
  team: 'i-lucide-users-round',
}
export const KIND_LABELS: Record<CircleKind, string> = {
  place: 'Lieux',
  theme: 'Thèmes',
  team: 'Équipes',
}

/** Advice positions in plain French. */
export const ADVICE_LABELS = {
  favorable: 'favorable',
  reserved: 'réservé',
  unfavorable: 'défavorable',
} as const

/** Display status: 'frozen' overlays 'voting' when the session is frozen. */
export type DisplayStatus = DecisionStatus | 'frozen'

export function displayStatus(decision: Decision, session?: VoteSession): DisplayStatus {
  if (decision.status === 'voting' && session?.status === 'frozen') return 'frozen'
  return decision.status
}

export function displayStatusLabel(status: DisplayStatus): string {
  return status === 'frozen' ? FROZEN_LABEL : STATUS_LABELS[status as DecisionStatus]
}

/** Timeline color mapping — the ONE state→color mapping (moods.css tokens). */
export const STATUS_TOKEN: Record<DisplayStatus, string> = {
  draft: 'prepa',
  advice: 'fenetre',
  objection: 'fenetre',
  framing: 'prepa',
  voting: 'vote',
  frozen: 'fige',
  adopted: 'vigueur',
  rejected: 'clos',
  revoked: 'revoque',
  transmitted: 'fige',
  closed: 'clos',
}

/** Case/accent-insensitive folding — same logic as useSearch. */
export function fold(text: string): string {
  return text.normalize('NFD').replace(/[̀-ͯ]/g, '').toLowerCase()
}

/** Short French date (« 12 août 2026 »). */
export function dateFr(iso?: string): string {
  if (!iso) return ''
  return new Date(iso).toLocaleDateString('fr-FR', {
    day: 'numeric', month: 'short', year: 'numeric',
  })
}

/** French date + time for timeline milestones. */
export function dateTimeFr(iso?: string): string {
  if (!iso) return ''
  return new Date(iso).toLocaleString('fr-FR', {
    day: 'numeric', month: 'short', hour: '2-digit', minute: '2-digit',
  })
}