import type { LucideIcon } from "lucide-react";
import { Copy, Ruler, Trash2 } from "lucide-react";
import { cn } from "@/lib/utils";
import {
  MapActionRow,
  MapModeButton,
  MapPanelSection
} from "./control-panel";
import {
  MAP_COMPACT_RADIUS_CLASS_NAME,
  MAP_READABLE_RADIUS_CLASS_NAME,
  MAP_READABLE_SURFACE_CLASS_NAME,
  MAP_READABLE_SURFACE_STRONG_CLASS_NAME
} from "./map-control-styles";

export type MapMeasureMode = {
  id: string;
  label: string;
  icon: LucideIcon;
  disabled?: boolean;
};

export type MapMeasureUnit = {
  id: string;
  label: string;
};

export type MapMeasureResultMetric = {
  label: string;
  value: string;
};

export type MapMeasureAction = {
  id: string;
  label: string;
  description: string;
  icon?: LucideIcon;
  strong?: boolean;
  variant?: "default" | "primary";
  tone?: "default" | "danger";
  disabled?: boolean;
  onClick?: () => void;
};

export type MapMeasurePanelProps = {
  modes: MapMeasureMode[];
  activeModeId: string;
  resultLabel: string;
  resultValue: string;
  resultUnit: string;
  metrics?: MapMeasureResultMetric[];
  units: MapMeasureUnit[];
  activeUnitId: string;
  actions: MapMeasureAction[];
  onSelectMode?: (id: string) => void;
  onSelectUnit?: (id: string) => void;
};

export function MapMeasurePanel({
  modes,
  activeModeId,
  resultLabel,
  resultValue,
  resultUnit,
  metrics = [],
  units,
  activeUnitId,
  actions,
  onSelectMode,
  onSelectUnit
}: MapMeasurePanelProps) {
  return (
    <div className="space-y-3">
      <MapPanelSection title="模式">
        <div className={cn("surface-well grid grid-cols-3 gap-1.5 border p-1.5", MAP_READABLE_RADIUS_CLASS_NAME)}>
          {modes.map((mode) => (
            <MapModeButton
              key={mode.id}
              icon={mode.icon}
              label={mode.label}
              active={mode.id === activeModeId}
              disabled={mode.disabled}
              onClick={() => onSelectMode?.(mode.id)}
            />
          ))}
        </div>
      </MapPanelSection>

      <MapPanelSection title="结果">
        <div className={cn("border border-blue-100 bg-blue-50/95 p-2", MAP_READABLE_RADIUS_CLASS_NAME)}>
          <div className={cn("p-3", MAP_READABLE_RADIUS_CLASS_NAME, MAP_READABLE_SURFACE_STRONG_CLASS_NAME)}>
            <div className="min-w-0 border-b border-slate-100 pb-3">
              <div className="text-xs font-semibold text-blue-700">{resultLabel}</div>
              <div className="mt-1 flex min-w-0 items-baseline gap-1.5 text-slate-950">
                <span className="truncate text-2xl font-semibold leading-none">{resultValue}</span>
                <span className="shrink-0 text-xs font-semibold text-slate-500">{resultUnit}</span>
              </div>
            </div>
            {metrics.length > 0 ? (
              <div className="mt-2 grid grid-cols-[repeat(auto-fit,minmax(92px,1fr))] gap-1.5">
                {metrics.map((metric) => (
                  <div
                    key={metric.label}
                    className={cn("min-w-0 px-2.5 py-1.5 text-left", MAP_COMPACT_RADIUS_CLASS_NAME, MAP_READABLE_SURFACE_CLASS_NAME)}
                  >
                    <div className="truncate text-xs text-slate-500">{metric.label}</div>
                    <div className="mt-0.5 truncate text-sm font-semibold text-slate-900">{metric.value}</div>
                  </div>
                ))}
              </div>
            ) : null}
          </div>
          <div className="mt-3 grid grid-cols-[repeat(auto-fit,minmax(0,1fr))] gap-1.5">
            {units.map((unit) => (
              <button
                key={unit.id}
                type="button"
                onClick={() => onSelectUnit?.(unit.id)}
                className={cn(
                  "h-7 text-xs font-semibold transition",
                  MAP_COMPACT_RADIUS_CLASS_NAME,
                  unit.id === activeUnitId
                    ? "bg-blue-600 text-white"
                    : "surface-control text-slate-600 hover:text-blue-700"
                )}
              >
                {unit.label}
              </button>
            ))}
          </div>
        </div>
      </MapPanelSection>

      <MapPanelSection title="操作">
        {actions.map((action) => (
          <MapActionRow
            key={action.id}
            icon={action.icon ?? getDefaultActionIcon(action.id)}
            label={action.label}
            description={action.description}
            strong={action.strong}
            variant={action.variant}
            tone={action.tone}
            disabled={action.disabled}
            onClick={action.onClick}
          />
        ))}
      </MapPanelSection>
    </div>
  );
}

function getDefaultActionIcon(actionId: string) {
  if (actionId.includes("copy")) {
    return Copy;
  }

  if (actionId.includes("clear") || actionId.includes("delete")) {
    return Trash2;
  }

  return Ruler;
}
