import { Eye, EyeOff, Layers3, Lock } from "lucide-react";
import { cn } from "@/lib/utils";
import {
  MAP_COMPACT_RADIUS_CLASS_NAME,
  MAP_ICON_CELL_RADIUS_CLASS_NAME,
  MAP_MAJOR_PANEL_RADIUS_CLASS_NAME,
  MAP_TOOL_PANEL_SURFACE_CLASS_NAME
} from "./map-control-styles";

export type MapLayerControlItem = {
  id: string;
  label: string;
  description?: string;
  visible: boolean;
  disabled?: boolean;
  locked?: boolean;
};

type MapLayerControlProps = {
  title?: string;
  items: MapLayerControlItem[];
  onToggleLayer: (id: string, visible: boolean) => void;
  className?: string;
};

export function MapLayerControl({
  title = "图层",
  items,
  onToggleLayer,
  className = ""
}: MapLayerControlProps) {
  return (
    <section
      aria-label={title}
      className={cn(
        "pointer-events-auto w-[276px] p-3",
        MAP_MAJOR_PANEL_RADIUS_CLASS_NAME,
        MAP_TOOL_PANEL_SURFACE_CLASS_NAME,
        className
      )}
    >
      <div className="flex items-center justify-between gap-3 px-1">
        <div className="flex min-w-0 items-center gap-2">
          <span className={cn("grid h-8 w-8 shrink-0 place-items-center bg-blue-50 text-blue-700", MAP_ICON_CELL_RADIUS_CLASS_NAME)}>
            <Layers3 size={17} aria-hidden="true" />
          </span>
          <div className="min-w-0">
            <h2 className="truncate text-sm font-semibold leading-tight text-slate-950">{title}</h2>
            <p className="mt-0.5 text-xs text-slate-500">
              {items.filter((item) => item.visible).length}/{items.length} 可见
            </p>
          </div>
        </div>
      </div>

      <div className="mt-3 space-y-1.5">
        {items.map((item) => {
          const Icon = item.visible ? Eye : EyeOff;
          const disabled = item.disabled || item.locked;

          return (
            <button
              key={item.id}
              type="button"
              disabled={disabled}
              aria-pressed={item.visible}
              onClick={() => onToggleLayer(item.id, !item.visible)}
              className={cn(
                "flex min-h-12 w-full items-center gap-3 border px-2.5 text-left text-sm transition duration-150",
                MAP_COMPACT_RADIUS_CLASS_NAME,
                item.visible
                  ? "surface-control border-blue-100 text-slate-900"
                  : "surface-well border-transparent text-slate-500 hover:border-slate-200 hover:bg-white",
                disabled && "cursor-not-allowed opacity-60 hover:bg-transparent"
              )}
            >
              <span
                className={cn(
                  "grid h-8 w-8 shrink-0 place-items-center",
                  MAP_ICON_CELL_RADIUS_CLASS_NAME,
                  item.visible ? "bg-blue-600 text-white" : "bg-slate-100 text-slate-400"
                )}
              >
                {item.locked ? <Lock size={15} aria-hidden="true" /> : <Icon size={15} aria-hidden="true" />}
              </span>
              <span className="min-w-0 flex-1">
                <span className="block truncate font-semibold">{item.label}</span>
                {item.description ? <span className="block truncate text-xs text-slate-500">{item.description}</span> : null}
              </span>
              <span
                className={cn(
                  "h-2.5 w-2.5 rounded-full",
                  item.visible ? "bg-blue-600" : "bg-slate-300"
                )}
                aria-hidden="true"
              />
            </button>
          );
        })}
      </div>
    </section>
  );
}
