"use client";

import {
  Check,
  Copy,
  X
} from "lucide-react";
import type { ComponentType } from "react";
import { useEffect, useRef, useState } from "react";
import {
  MAP_ICON_CELL_RADIUS_CLASS_NAME,
  MAP_MAJOR_PANEL_RADIUS_CLASS_NAME
} from "@/features/map/core/components/map-control-styles";
import { showMapNotice } from "@/features/map/core/components/notice";
import { cn } from "@/lib/utils";
import type { WaterNetworkSourceId } from "../map/sources";
import type { DetailFeature } from "../types";
import {
  getFeaturePanelModel,
  type FeaturePanelBadgeTone
} from "../utils/feature-properties";
import {
  ConduitFeatureIcon,
  JunctionFeatureIcon,
  OrificeFeatureIcon,
  OutfallFeatureIcon,
  PumpFeatureIcon,
  type DrainageFeatureIconProps
} from "./drainage-feature-icons";

type FeaturePopoverProps = {
  feature: DetailFeature | null;
  onClose: () => void;
};

const FEATURE_LAYER_META: Record<
  WaterNetworkSourceId,
  { icon: ComponentType<DrainageFeatureIconProps>; label: string }
> = {
  conduits: { icon: ConduitFeatureIcon, label: "管渠" },
  junctions: { icon: JunctionFeatureIcon, label: "检查井" },
  orifices: { icon: OrificeFeatureIcon, label: "孔口" },
  outfalls: { icon: OutfallFeatureIcon, label: "排放口" },
  pumps: { icon: PumpFeatureIcon, label: "泵" }
};

const BADGE_CLASS_NAMES: Record<FeaturePanelBadgeTone, string> = {
  active: "bg-emerald-50 text-emerald-700 ring-emerald-600/15",
  inactive: "bg-slate-100 text-slate-600 ring-slate-500/15",
  warning: "bg-orange-50 text-orange-700 ring-orange-600/15",
  critical: "bg-red-50 text-red-700 ring-red-600/15",
  info: "bg-blue-50 text-blue-700 ring-blue-600/15"
};

const BADGE_DOT_CLASS_NAMES: Record<FeaturePanelBadgeTone, string> = {
  active: "bg-emerald-500",
  inactive: "bg-slate-400",
  warning: "bg-orange-500",
  critical: "bg-red-500",
  info: "bg-blue-500"
};

export function FeaturePopover({ feature, onClose }: FeaturePopoverProps) {
  const [copiedId, setCopiedId] = useState<string | null>(null);
  const copyResetTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);

  useEffect(() => () => {
    if (copyResetTimeoutRef.current) {
      clearTimeout(copyResetTimeoutRef.current);
    }
  }, []);

  if (!feature) {
    return null;
  }

  const panelModel = getFeaturePanelModel(feature.layer, feature.properties, feature.id);
  const layerMeta = FEATURE_LAYER_META[feature.layer];
  const LayerIcon = layerMeta.icon;
  const copied = copiedId === panelModel.id;
  const canCopy = panelModel.id !== "暂无";

  const handleCopyId = async () => {
    try {
      if (!navigator.clipboard) {
        throw new Error("Clipboard API unavailable");
      }

      await navigator.clipboard.writeText(panelModel.id);
      setCopiedId(panelModel.id);

      if (copyResetTimeoutRef.current) {
        clearTimeout(copyResetTimeoutRef.current);
      }

      copyResetTimeoutRef.current = setTimeout(() => setCopiedId(null), 1500);
    } catch {
      showMapNotice({
        tone: "error",
        title: "无法复制编号",
        message: "请手动选择编号后复制。"
      });
    }
  };

  return (
    <aside
      className={cn(
        "pointer-events-auto absolute left-1/2 top-[92px] z-20 w-[min(360px,calc(100vw-24px))] -translate-x-1/2 bg-white/90 p-3 shadow-2xl shadow-blue-950/20 ring-1 ring-white/80 backdrop-blur-xl",
        MAP_MAJOR_PANEL_RADIUS_CLASS_NAME
      )}
    >
      <header className="grid grid-cols-[40px_minmax(0,1fr)_auto] items-center gap-2.5">
        <span
          className={cn(
            "grid h-10 w-10 place-items-center bg-blue-50 text-blue-700 ring-1 ring-blue-600/10",
            MAP_ICON_CELL_RADIUS_CLASS_NAME
          )}
          aria-hidden="true"
        >
          <LayerIcon size={20} />
        </span>

        <div className="min-w-0 flex-1">
          <div className="flex min-h-5 flex-wrap items-center gap-1.5">
            <p className="text-xs font-semibold text-blue-700">{layerMeta.label}</p>
            {panelModel.badge ? (
              <span
                className={cn(
                  "inline-flex items-center gap-1.5 rounded-full px-2 py-0.5 text-xs font-semibold leading-4 ring-1 ring-inset",
                  BADGE_CLASS_NAMES[panelModel.badge.tone]
                )}
              >
                <span
                  className={cn("h-1.5 w-1.5 rounded-full", BADGE_DOT_CLASS_NAMES[panelModel.badge.tone])}
                  aria-hidden="true"
                />
                {panelModel.badge.label}
              </span>
            ) : null}
          </div>
          <h3 className="mt-1 min-w-0 select-text break-all text-sm font-semibold leading-5 text-slate-950 tabular-nums">
            {panelModel.id}
          </h3>
        </div>

        <div className="flex items-center gap-1">
          {canCopy ? (
            <button
              type="button"
              aria-label={copied ? "编号已复制" : "复制编号"}
              title={copied ? "编号已复制" : "复制编号"}
              onClick={() => void handleCopyId()}
              className="relative grid h-10 w-10 shrink-0 place-items-center rounded-xl text-slate-400 transition-[background-color,color,transform] duration-150 [@media(hover:hover)]:hover:bg-slate-100 [@media(hover:hover)]:hover:text-blue-700 active:scale-95 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-600/25"
            >
              <Copy
                size={15}
                aria-hidden="true"
                className={cn(
                  "absolute transition-[opacity,transform] duration-[120ms]",
                  copied ? "scale-90 opacity-0" : "scale-100 opacity-100"
                )}
              />
              <Check
                size={16}
                aria-hidden="true"
                className={cn(
                  "absolute text-emerald-600 transition-[opacity,transform] duration-[120ms]",
                  copied ? "scale-100 opacity-100" : "scale-90 opacity-0"
                )}
              />
            </button>
          ) : null}
          <button
            type="button"
            aria-label="关闭要素信息"
            title="关闭要素信息"
            onClick={onClose}
            className="grid h-10 w-10 shrink-0 place-items-center rounded-xl text-slate-400 transition-[background-color,color,transform] duration-150 [@media(hover:hover)]:hover:bg-slate-100 [@media(hover:hover)]:hover:text-slate-900 active:scale-95 focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-blue-600/25"
          >
            <X size={16} aria-hidden="true" />
          </button>
        </div>
      </header>

      {panelModel.attributes.length > 0 ? (
        <dl className="mt-2 border-y border-slate-200/80">
          {panelModel.attributes.map((entry) => (
            <div
              key={entry.key}
              className="grid min-h-10 grid-cols-[96px_minmax(0,1fr)] items-baseline gap-3 border-b border-slate-200/70 px-1 py-2.5 last:border-b-0"
            >
              <dt className="text-xs font-medium leading-5 text-slate-500">{entry.label}</dt>
              <dd
                className={cn(
                  "break-words text-right text-sm font-semibold leading-5 text-slate-800 tabular-nums",
                  entry.value === "暂无" && "font-medium text-slate-400"
                )}
              >
                {entry.value}
              </dd>
            </div>
          ))}
        </dl>
      ) : null}

      <span className="sr-only" aria-live="polite">
        {copied ? "编号已复制" : ""}
      </span>
    </aside>
  );
}