import type { ComponentProps, ReactNode } from "react";
import { AlertCircle, CheckCircle2, CircleHelp, Info, TriangleAlert } from "lucide-react";

import { cn } from "@/shared/ui/cn";

export type WorkbenchTone = "neutral" | "info" | "success" | "warning" | "danger" | "teal";

const sectionTone: Record<WorkbenchTone, string> = {
  neutral: "bg-[var(--surface-control)] text-slate-600",
  info: "bg-[var(--action-soft)] text-[var(--action-blue-hover)]",
  success: "bg-emerald-50 text-emerald-700",
  warning: "bg-[var(--status-warning-soft)] text-[var(--status-warning-foreground)]",
  danger: "bg-rose-50 text-rose-700",
  teal: "bg-cyan-50 text-cyan-800"
};

const noticeTone: Record<Exclude<WorkbenchTone, "teal">, string> = {
  neutral: "border-[var(--surface-border)] bg-[var(--surface-reading)] text-slate-700",
  info: "border-[var(--action-blue)] bg-[var(--action-soft)]/80 text-[var(--action-blue-pressed)]",
  success: "border-emerald-500 bg-emerald-50/80 text-emerald-950",
  warning: "border-[var(--status-warning-mark)] bg-[var(--status-warning-soft)]/90 text-[var(--status-warning-foreground)]",
  danger: "border-rose-500 bg-rose-50/90 text-rose-950"
};

const noticeIcon = {
  neutral: CircleHelp,
  info: Info,
  success: CheckCircle2,
  warning: TriangleAlert,
  danger: AlertCircle
};

export function WorkbenchSection({
  title,
  description,
  icon,
  meta,
  actions,
  tone = "neutral",
  bodyClassName,
  className,
  children,
  ...props
}: ComponentProps<"section"> & {
  title: ReactNode;
  description?: ReactNode;
  icon?: ReactNode;
  meta?: ReactNode;
  actions?: ReactNode;
  tone?: WorkbenchTone;
  bodyClassName?: string;
}) {
  return (
    <section
      className={cn(
        "overflow-hidden rounded-[14px] border border-[var(--surface-divider)]/90 bg-[var(--surface-reading)] shadow-[0_1px_2px_rgba(15,23,42,0.06)]",
        className
      )}
      {...props}
    >
      <div className="flex min-h-14 items-start gap-3 border-b border-[var(--surface-divider)]/75 bg-[var(--surface-control)] px-3.5 py-3">
        {icon ? (
          <span className={cn("mt-0.5 grid size-7 shrink-0 place-items-center rounded-lg", sectionTone[tone])}>
            {icon}
          </span>
        ) : null}
        <div className="min-w-0 flex-1">
          <div className="flex flex-wrap items-center gap-x-2 gap-y-1">
            <h3 className="text-[13px] font-semibold leading-5 text-slate-900">{title}</h3>
            {meta}
          </div>
          {description ? <p className="mt-0.5 text-xs leading-5 text-[var(--ink-muted)]">{description}</p> : null}
        </div>
        {actions ? <div className="flex shrink-0 items-center gap-1">{actions}</div> : null}
      </div>
      <div className={cn("p-3.5", bodyClassName)}>{children}</div>
    </section>
  );
}

export function WorkbenchNotice({
  tone = "info",
  title,
  icon,
  className,
  children,
  ...props
}: ComponentProps<"div"> & {
  tone?: Exclude<WorkbenchTone, "teal">;
  title?: ReactNode;
  icon?: ReactNode;
}) {
  const Icon = noticeIcon[tone];
  return (
    <div
      className={cn(
        "flex min-w-0 gap-2.5 rounded-r-lg border-l-2 px-3 py-2.5 text-xs leading-5",
        noticeTone[tone],
        className
      )}
      {...props}
    >
      <span className="mt-0.5 grid size-4 shrink-0 place-items-center" aria-hidden="true">
        {icon ?? <Icon size={15} />}
      </span>
      <div className="min-w-0 flex-1 break-words">
        {title ? <p className="font-semibold">{title}</p> : null}
        <div className={cn(title && "mt-0.5")}>{children}</div>
      </div>
    </div>
  );
}

export function WorkbenchEmptyState({
  icon,
  title,
  description,
  action,
  className
}: {
  icon?: ReactNode;
  title: ReactNode;
  description?: ReactNode;
  action?: ReactNode;
  className?: string;
}) {
  return (
    <div className={cn("rounded-xl border border-dashed border-[var(--surface-border)] bg-[var(--surface-reading)]/70 px-4 py-5 text-center", className)}>
      {icon ? <span className="mx-auto grid size-8 place-items-center rounded-full bg-[var(--surface-reading)] text-[var(--ink-muted)] shadow-xs">{icon}</span> : null}
      <p className={cn("text-xs font-semibold text-slate-700", icon && "mt-2")}>{title}</p>
      {description ? <p className="mx-auto mt-1 max-w-72 text-[11px] leading-5 text-[var(--ink-muted)]">{description}</p> : null}
      {action ? <div className="mt-3 flex justify-center">{action}</div> : null}
    </div>
  );
}