/** Données navigation dossiers / libellés (partagées sidebar + filtre mails). */

import {
  buildEmailLabelToSidebarFolderId,
  buildFolderIdToLabelRecord,
  type FolderTreeNode,
  type LabelRowItem,
} from "@/lib/sidebar-nav-maps"

export type { FolderTreeNode, LabelRowItem } from "@/lib/sidebar-nav-maps"

export const folderTree: FolderTreeNode[] = [
  {
    id: "folder-travail",
    label: "Travail",
    color: "bg-blue-500",
    count: 24,
    children: [
      { id: "folder-travail-clients", label: "Clients", color: "bg-blue-400", count: 11 },
      {
        id: "folder-travail-projets",
        label: "Projets",
        color: "bg-blue-400",
        count: 8,
        children: [
          { id: "folder-travail-projets-q1", label: "Q1 2026", color: "bg-sky-400", count: 3 },
          { id: "folder-travail-projets-archive", label: "Archives projets", color: "bg-slate-400", count: 5 },
        ],
      },
      { id: "folder-travail-rh", label: "RH", color: "bg-blue-400", count: 5 },
    ],
  },
  {
    id: "folder-perso",
    label: "Personnel",
    color: "bg-emerald-500",
    count: 18,
    children: [
      { id: "folder-perso-voyages", label: "Voyages", color: "bg-emerald-400", count: 6 },
      { id: "folder-perso-famille", label: "Famille", color: "bg-emerald-400", count: 12 },
    ],
  },
  { id: "folder-factures", label: "Factures", color: "bg-amber-500", count: 42 },
]

export function normalizeLabelRow(row: LabelRowItem): LabelRowItem {
  return {
    ...row,
    tabbed: row.tabbed ?? false,
    favorite: row.favorite ?? false,
    excludeFromPrincipal: row.excludeFromPrincipal ?? false,
    showInMessageList: row.showInMessageList ?? true,
    enabled: row.enabled ?? true,
  }
}

/** Libellés navigation système (onglets + catégories) — ids stables proches du titre. */
export const SYSTEM_NAV_LABEL_DEFAULTS: readonly LabelRowItem[] = [
  {
    id: "promotions",
    label: "Promotions",
    color: "bg-[#1e8e3e]",
    icon: "mdi:tag",
    tabbed: true,
    favorite: true,
    excludeFromPrincipal: true,
    showInMessageList: false,
    enabled: true,
  },
  {
    id: "reseaux-sociaux",
    label: "Réseaux sociaux",
    color: "bg-[#0b57d0]",
    icon: "mdi:account-group",
    tabbed: true,
    favorite: true,
    excludeFromPrincipal: true,
    showInMessageList: false,
    enabled: true,
  },
  {
    id: "newsletters",
    label: "Newsletters",
    color: "bg-[#e8710a]",
    icon: "mdi:email-newsletter",
    tabbed: true,
    favorite: true,
    excludeFromPrincipal: true,
    showInMessageList: false,
    enabled: true,
  },
  {
    id: "mises-a-jour",
    label: "Mises à jour",
    color: "bg-[#c5221f]",
    icon: "mdi:update",
    tabbed: true,
    favorite: true,
    excludeFromPrincipal: true,
    showInMessageList: false,
    enabled: true,
  },
  {
    id: "forums",
    label: "Forums",
    color: "bg-[#9334e6]",
    icon: "mdi:forum",
    tabbed: true,
    favorite: true,
    excludeFromPrincipal: true,
    showInMessageList: false,
    enabled: true,
  },
  {
    id: "achats",
    label: "Achats",
    color: "bg-amber-600",
    icon: "mdi:cart-outline",
    tabbed: false,
    favorite: false,
    excludeFromPrincipal: false,
    showInMessageList: true,
    enabled: true,
  },
  {
    id: "deplacements",
    label: "Déplacements",
    color: "bg-teal-600",
    icon: "mdi:map-marker",
    tabbed: false,
    favorite: false,
    excludeFromPrincipal: false,
    showInMessageList: true,
    enabled: true,
  },
  {
    id: "finance",
    label: "Finance",
    color: "bg-indigo-600",
    icon: "mdi:credit-card-outline",
    tabbed: false,
    favorite: false,
    excludeFromPrincipal: false,
    showInMessageList: true,
    enabled: true,
  },
] as const

export const SYSTEM_NAV_LABEL_ID_SET = new Set(SYSTEM_NAV_LABEL_DEFAULTS.map((r) => r.id))

const DEMO_IMAP_LABEL_ROWS: readonly LabelRowItem[] = [
  { id: "imap-sent", label: "[Imap]/Sent", color: "bg-gray-500" },
  { id: "imap-trash", label: "[Imap]/Trash", color: "bg-red-400", count: 4 },
  { id: "browser-alerts", label: "BrowserAlerts", color: "bg-red-400", count: 1 },
  { id: "cctv", label: "CCTV", color: "bg-red-400" },
  { id: "cm-security", label: "CMSecurity Alerts", color: "bg-red-400", count: 14 },
  { id: "twitch", label: "Twitch", color: "bg-purple-500", count: 137 },
]

/** Tous les libellés par défaut (système + démo IMAP) — ordre stable. */
export const DEFAULT_NAV_LABEL_ROWS: LabelRowItem[] = [
  ...SYSTEM_NAV_LABEL_DEFAULTS.map((r) => normalizeLabelRow({ ...r })),
  ...DEMO_IMAP_LABEL_ROWS.map((r) => normalizeLabelRow({ ...r })),
]

/** Snapshot pour filtres quand aucun contexte nav (tests, défaut). */
export const defaultNavLabelRowsSnapshot: LabelRowItem[] = DEFAULT_NAV_LABEL_ROWS.map((r) => ({ ...r }))

export function isSystemNavLabelId(id: string): boolean {
  return SYSTEM_NAV_LABEL_ID_SET.has(id)
}

/** Libellés visibles en onglets boîte de réception (hors Principale). */
export function tabbedInboxLabelRows(rows: readonly LabelRowItem[]): LabelRowItem[] {
  return rows.filter((r) => r.enabled !== false && r.tabbed === true)
}

export function favoriteNavLabelRows(rows: readonly LabelRowItem[]): LabelRowItem[] {
  return rows.filter((r) => r.enabled !== false && r.favorite === true)
}

export function nonTabbedNavLabelRows(rows: readonly LabelRowItem[]): LabelRowItem[] {
  return rows.filter((r) => r.enabled !== false && r.tabbed !== true && SYSTEM_NAV_LABEL_ID_SET.has(r.id))
}

export function labelRowById(
  rows: readonly LabelRowItem[],
  id: string
): LabelRowItem | undefined {
  return rows.find((r) => r.id === id)
}

/** id de ligne sidebar (dossier hiérarchique ou libellé) → libellé pour matcher `email.labels`. */
export const sidebarNavFolderIdToLabel: Readonly<Record<string, string>> =
  buildFolderIdToLabelRecord(folderTree, defaultNavLabelRowsSnapshot)

/** Libellé Gmail (comme dans `email.labels`) → id de ligne sidebar correspondant. */
export const emailLabelToSidebarFolderId: Readonly<Record<string, string>> =
  buildEmailLabelToSidebarFolderId(sidebarNavFolderIdToLabel)

/** Libellés navigation dossiers système — hors libellés définis dans `labelRows`. */
const STATIC_NAV_FOLDER_LABELS: Record<string, string> = {
  inbox: "Boîte de réception",
  starred: "Messages suivis",
  snoozed: "En attente",
  important: "Important",
  sent: "Messages envoyés",
  drafts: "Brouillons",
  scheduled: "Planifié",
  spam: "Indésirables",
  trash: "Corbeille",
}

/** Libellé lisible pour id de ligne (liste vide, messages d’état). Dossiers / libellés IMAP viennent de l’arbre. */
export function getMailNavFolderLabel(
  folderId: string,
  dynamicFolderIdToLabel?: Record<string, string>
): string {
  const fromStatic = STATIC_NAV_FOLDER_LABELS[folderId]
  if (fromStatic) return fromStatic
  const mapped =
    dynamicFolderIdToLabel?.[folderId] ?? sidebarNavFolderIdToLabel[folderId]
  if (mapped && mapped !== "scheduled") return mapped
  return folderId
}

export function inboxTabDisplayLabel(
  inboxTab: string,
  labelRows: readonly LabelRowItem[],
  folderIdToLabel: Record<string, string>
): string {
  if (inboxTab === "primary") return "Principale"
  if (inboxTab === "all") return "Tous les messages"
  const row = labelRowById(labelRows, inboxTab)
  if (row && row.enabled !== false) return row.label
  return getMailNavFolderLabel(inboxTab, folderIdToLabel)
}

export function cloneDefaultFolderTree(): FolderTreeNode[] {
  return structuredClone(folderTree)
}

export function cloneDefaultLabelRows(): LabelRowItem[] {
  return DEFAULT_NAV_LABEL_ROWS.map((r) => ({ ...r }))
}

const LEGACY_LABEL_ROW_ID_MAP: Record<string, string> = {
  purchases: "achats",
  travel: "deplacements",
  social: "reseaux-sociaux",
  updates: "mises-a-jour",
  notifications: "newsletters",
}

/** Fusionne la persistance avec les défauts (ids système + nouveaux champs). */
export function reconcileLabelRowsFromPersisted(persisted: LabelRowItem[] | undefined): LabelRowItem[] {
  const defaults = cloneDefaultLabelRows()
  const defaultIds = new Set(defaults.map((r) => r.id))

  const persistByResolvedId = new Map<string, LabelRowItem>()
  for (const p of persisted ?? []) {
    const resolvedId = LEGACY_LABEL_ROW_ID_MAP[p.id] ?? p.id
    persistByResolvedId.set(resolvedId, { ...p, id: resolvedId })
  }

  const merged = defaults.map((d) => {
    const p = persistByResolvedId.get(d.id)
    if (!p) return { ...d }
    const row = normalizeLabelRow({ ...d, ...p, id: d.id })
    if (SYSTEM_NAV_LABEL_ID_SET.has(d.id)) {
      return { ...row, icon: d.icon, color: d.color }
    }
    return row
  })

  const mergedIds = new Set(merged.map((r) => r.id))
  const extras: LabelRowItem[] = []
  for (const p of persisted ?? []) {
    const resolvedId = LEGACY_LABEL_ROW_ID_MAP[p.id] ?? p.id
    if (!mergedIds.has(resolvedId)) {
      extras.push(normalizeLabelRow({ ...p, id: resolvedId }))
      mergedIds.add(resolvedId)
    }
  }

  return [...merged, ...extras]
}