"use client";

import type { ReactNode } from "react";
import {
  CircleDot,
  CircleDotDashed,
  CornerDownRight,
  Disc,
  Drill,
  Focus,
  Grid2X2Plus,
  LassoSelect,
  MousePointerClick,
  Orbit,
  Radius,
  SquareDashed,
  SquareSplitHorizontal,
} from "lucide-react";
import { AiSelectionMode, CAD_EDIT_TOOLS } from "@/lib/cad-edit-tools";

const EDIT_TOOL_ICONS = {
  add_hole: Drill,
  add_counterbore: CircleDot,
  add_countersink: CircleDotDashed,
  add_slot: SquareSplitHorizontal,
  add_pocket: SquareDashed,
  add_circular_pocket: Disc,
  add_hole_pattern: Grid2X2Plus,
  add_chamfer: CornerDownRight,
  add_fillet: Radius,
};

function ToolbarButton({
  label,
  active = false,
  disabled = false,
  children,
  onClick,
}: {
  label: string;
  active?: boolean;
  disabled?: boolean;
  children: ReactNode;
  onClick?: () => void;
}) {
  return (
    <button
      type="button"
      aria-label={label}
      aria-pressed={active}
      title={label}
      disabled={disabled}
      onClick={onClick}
      className={[
        "grid size-7 place-items-center rounded-md border text-[#c9cccf] transition",
        active
          ? "border-[#39434b] bg-[#22272c] text-[#f2f4f4] shadow-[inset_0_0_0_1px_rgba(232,232,227,0.08)]"
          : "border-transparent hover:border-[#39434b] hover:bg-[#22272c] hover:text-[#f2f4f4]",
        disabled ? "cursor-not-allowed opacity-40 hover:border-transparent hover:bg-transparent" : "",
      ].join(" ")}
    >
      {children}
    </button>
  );
}

function Divider() {
  return <span className="mx-0.5 h-5 w-px shrink-0 bg-[#39434b]/80" aria-hidden="true" />;
}

export function EmbeddedCadEditToolbar({
  activeToolId,
  aiSelectionMode,
  disabled = false,
  onSelectTool,
  onSelectionModeChange,
}: {
  activeToolId: string;
  aiSelectionMode: AiSelectionMode;
  disabled?: boolean;
  onSelectTool: (toolId: string) => void;
  onSelectionModeChange: (mode: AiSelectionMode) => void;
}) {
  return (
    <div
      data-viewer-interaction-overlay="true"
      className="pointer-events-auto absolute left-3 top-3 z-30 inline-flex h-10 max-w-[calc(100vw-1.5rem)] flex-nowrap items-center gap-1 overflow-x-auto rounded-md border border-[#2d3339] bg-[#15181b]/95 p-1.5 text-[#c9cccf] shadow-sm shadow-black/20 backdrop-blur"
      role="toolbar"
      aria-label="CAD 编辑工具"
      onPointerDown={(event) => event.stopPropagation()}
    >
      <ToolbarButton
        label="点选几何"
        active={aiSelectionMode === "point"}
        disabled={disabled}
        onClick={() => {
          onSelectTool("");
          onSelectionModeChange("point");
        }}
      >
        <MousePointerClick className="size-3.5" strokeWidth={2} aria-hidden="true" />
      </ToolbarButton>
      <ToolbarButton
        label="圈选几何"
        active={aiSelectionMode === "lasso"}
        disabled={disabled}
        onClick={() => {
          onSelectTool("");
          onSelectionModeChange("lasso");
        }}
      >
        <LassoSelect className="size-3.5" strokeWidth={2} aria-hidden="true" />
      </ToolbarButton>

      <Divider />

      {CAD_EDIT_TOOLS.map((tool) => {
        const Icon = EDIT_TOOL_ICONS[tool.id as keyof typeof EDIT_TOOL_ICONS] || Drill;
        const active = activeToolId === tool.id;
        return (
          <ToolbarButton
            key={tool.id}
            label={tool.label}
            active={active}
            disabled={disabled}
            onClick={() => {
              if (active) {
                onSelectTool("");
                onSelectionModeChange("point");
                return;
              }
              onSelectTool(tool.id);
              onSelectionModeChange("none");
            }}
          >
            <Icon className="size-3.5" strokeWidth={2} aria-hidden="true" />
          </ToolbarButton>
        );
      })}
    </div>
  );
}

export function EmbeddedCadViewToolbar({
  disabled = false,
  onResetView,
  onScreenshot,
}: {
  disabled?: boolean;
  onResetView: () => void;
  onScreenshot?: () => void;
}) {
  return (
    <div
      data-viewer-interaction-overlay="true"
      className="pointer-events-auto absolute right-3 top-3 z-30 inline-flex min-h-10 items-center gap-1 rounded-md border border-[#2d3339] bg-[#15181b]/95 p-1.5 text-[#c9cccf] shadow-sm shadow-black/20 backdrop-blur"
      role="toolbar"
      aria-label="CAD 预览工具"
      onPointerDown={(event) => event.stopPropagation()}
    >
      <ToolbarButton label="Orbit" disabled={disabled} onClick={onResetView}>
        <Orbit className="size-3.5" strokeWidth={2} aria-hidden="true" />
      </ToolbarButton>
      <ToolbarButton label="Copy screenshot" disabled={disabled || !onScreenshot} onClick={onScreenshot}>
        <Focus className="size-3.5" strokeWidth={2} aria-hidden="true" />
      </ToolbarButton>
    </div>
  );
}