"use client"

import type { ReactNode } from "react"
import Link from "next/link"
import { ArrowLeft, Globe, Lock, Users } from "lucide-react"
import { EditorAccountButton } from "@/components/drive/editor-account-button"
import { OfficeEditorInlineTitle } from "@/components/drive/office-editor-inline-title"
import { ShareDialog } from "@/components/drive/share-dialog"
import { CollabPresenceAvatars } from "@/components/drive/richtext/collab-presence-avatars"
import { Button } from "@/components/ui/button"
import type { DriveShare } from "@/lib/api/types"
import type { CollabPresenceUser } from "@/lib/drive/use-collab-presence"
import {
  resolveShareButtonIcon,
  type ShareButtonIcon,
} from "@/lib/drive/drive-share-button-state"
import type { UltidrawSaveStatus } from "@/lib/drive/ultidraw-types"
import { cn } from "@/lib/utils"

function ShareButtonIcon({ kind }: { kind: ShareButtonIcon }) {
  if (kind === "globe") return <Globe className="h-4 w-4" aria-hidden />
  if (kind === "users") return <Users className="h-4 w-4" aria-hidden />
  return <Lock className="h-4 w-4" aria-hidden />
}

function saveStatusLabel(status: UltidrawSaveStatus): string {
  switch (status) {
    case "saving":
      return "Enregistrement…"
    case "saved":
      return "Enregistré dans UltiDrive"
    case "error":
      return "Erreur d'enregistrement"
    default:
      return ""
  }
}

export function UltidrawChrome({
  backHref,
  backLabel,
  title,
  showBack = true,
  onRename,
  renameDisabled = false,
  shares = [],
  onShareClick,
  showShare = false,
  showAccount = false,
  saveStatus = "idle",
  presenceUsers = [],
  trailing,
}: {
  backHref?: string
  backLabel?: string
  title: string
  showBack?: boolean
  onRename?: (next: string) => Promise<void>
  renameDisabled?: boolean
  shares?: DriveShare[]
  onShareClick?: () => void
  showShare?: boolean
  showAccount?: boolean
  saveStatus?: UltidrawSaveStatus
  presenceUsers?: CollabPresenceUser[]
  trailing?: ReactNode
}) {
  const shareIcon = resolveShareButtonIcon(shares)
  const statusLabel = saveStatusLabel(saveStatus)

  return (
    <>
      <div className="flex h-12 shrink-0 items-center gap-2 border-b border-border px-3 ultidrive-editor-chrome">
        {showBack && backHref ? (
          <Button variant="ghost" size="sm" asChild className="shrink-0">
            <Link href={backHref}>
              <ArrowLeft className="mr-1 h-4 w-4" />
              {backLabel ?? "Retour"}
            </Link>
          </Button>
        ) : null}

        <div className="min-w-0 flex-1">
          {onRename ? (
            <OfficeEditorInlineTitle
              value={title}
              onRename={onRename}
              disabled={renameDisabled}
            />
          ) : (
            <span className="block truncate px-1.5 text-sm font-medium">{title}</span>
          )}
        </div>

        <div className="flex shrink-0 items-center gap-3">
          {presenceUsers.length > 0 ? <CollabPresenceAvatars users={presenceUsers} /> : null}
          {statusLabel ? (
            <span className="text-xs text-muted-foreground tabular-nums">{statusLabel}</span>
          ) : null}
          {trailing}
          {showShare ? (
            <Button
              type="button"
              size="sm"
              className={cn(
                "gap-2 rounded-full border-0 px-4 shadow-none",
                "bg-[#1967d2] text-white hover:bg-[#185abc] hover:text-white",
                "dark:bg-[#e8eaed] dark:text-[#3c4043] dark:hover:bg-[#dadce0] dark:hover:text-[#202124]"
              )}
              onClick={onShareClick}
            >
              <ShareButtonIcon kind={shareIcon} />
              Partager
            </Button>
          ) : null}
          {showAccount ? <EditorAccountButton /> : null}
        </div>
      </div>
      {showShare ? <ShareDialog /> : null}
    </>
  )
}