"use client";

import { useEffect, useRef, useState } from "react";
import { trpc } from "~/lib/trpc/client.js";
import { formatCents } from "~/lib/format.js";
import type { SkillEntry } from "@capakraken/shared";

interface ResourceHoverCardProps {
  resourceId: string;
  anchorEl: HTMLElement;
  onClose: () => void;
}

export function ResourceHoverCard({ resourceId, anchorEl, onClose }: ResourceHoverCardProps) {
  const ref = useRef<HTMLDivElement>(null);
  const [pos, setPos] = useState({ left: 0, top: 0 });

  const { data, isLoading } = trpc.resource.getHoverCard.useQuery(
    { id: resourceId },
    { staleTime: 60_000 },
  );

  // Position relative to anchor element
  useEffect(() => {
    const rect = anchorEl.getBoundingClientRect();
    setPos({
      left: rect.right + 8,
      top: Math.min(rect.top, window.innerHeight - 320),
    });
  }, [anchorEl]);

  // Close on outside click
  useEffect(() => {
    function handleClick(e: MouseEvent) {
      if (ref.current && !ref.current.contains(e.target as Node) && !anchorEl.contains(e.target as Node)) {
        onClose();
      }
    }
    document.addEventListener("mousedown", handleClick);
    return () => document.removeEventListener("mousedown", handleClick);
  }, [onClose, anchorEl]);

  const skills = (data?.skills ?? []) as unknown as SkillEntry[];
  const mainSkills = skills.filter((s) => s.isMainSkill);
  const topSkills = skills
    .filter((s) => !s.isMainSkill && s.proficiency >= 4)
    .sort((a, b) => b.proficiency - a.proficiency)
    .slice(0, 6);

  const popoverStyle: React.CSSProperties = {
    position: "fixed",
    left: Math.min(pos.left, window.innerWidth - 300),
    top: pos.top,
    zIndex: 50,
    width: 280,
  };

  return (
    <div
      ref={ref}
      data-resource-hover-card="true"
      style={popoverStyle}
      className="bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-600 rounded-xl shadow-xl overflow-hidden"
      onMouseLeave={onClose}
    >
      {isLoading || !data ? (
        <div className="p-4 text-xs text-gray-400 dark:text-gray-500">Loading...</div>
      ) : (
        <>
          {/* Header */}
          <div className="px-4 py-3 border-b border-gray-100 dark:border-gray-700 bg-gray-50 dark:bg-gray-750">
            <div className="flex items-center gap-2">
              <div className="w-8 h-8 rounded-full bg-brand-100 dark:bg-brand-900/40 flex items-center justify-center text-xs font-bold text-brand-700 dark:text-brand-300 flex-shrink-0">
                {data.displayName.slice(0, 2).toUpperCase()}
              </div>
              <div className="min-w-0">
                <div className="text-sm font-semibold text-gray-800 dark:text-gray-100 truncate">
                  {data.displayName}
                </div>
                <div className="text-[11px] text-gray-400 dark:text-gray-500">{data.eid}</div>
              </div>
            </div>
          </div>

          <div className="p-3 space-y-2.5 text-xs">
            {/* Role & Chapter */}
            <div className="grid grid-cols-2 gap-x-3 gap-y-1.5">
              {data.areaRole && (
                <div>
                  <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">Role</div>
                  <div className="font-medium text-gray-700 dark:text-gray-200 flex items-center gap-1">
                    {data.areaRole.color && (
                      <span className="w-2 h-2 rounded-full flex-shrink-0" style={{ backgroundColor: data.areaRole.color }} />
                    )}
                    {data.areaRole.name}
                  </div>
                </div>
              )}
              {data.chapter && (
                <div>
                  <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">Chapter</div>
                  <div className="font-medium text-gray-700 dark:text-gray-200">{data.chapter}</div>
                </div>
              )}
              {data.country && (
                <div>
                  <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">Location</div>
                  <div className="font-medium text-gray-700 dark:text-gray-200">{data.country.name}</div>
                </div>
              )}
              {data.managementLevel && (
                <div>
                  <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">Level</div>
                  <div className="font-medium text-gray-700 dark:text-gray-200">{data.managementLevel.name}</div>
                </div>
              )}
            </div>

            {/* Rates */}
            <div className="flex items-center gap-3 py-1.5 px-2 rounded-lg bg-gray-50 dark:bg-gray-750">
              <div>
                <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">LCR</div>
                <div className="font-semibold text-gray-700 dark:text-gray-200">
                  {formatCents(data.lcrCents)} {data.currency}/h
                </div>
              </div>
              <div className="w-px h-6 bg-gray-200 dark:bg-gray-600" />
              <div>
                <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">UCR</div>
                <div className="font-semibold text-gray-700 dark:text-gray-200">
                  {formatCents(data.ucrCents)} {data.currency}/h
                </div>
              </div>
              <div className="w-px h-6 bg-gray-200 dark:bg-gray-600" />
              <div>
                <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider">Chg%</div>
                <div className="font-semibold text-gray-700 dark:text-gray-200">{data.chargeabilityTarget}%</div>
              </div>
            </div>

            {/* Main Skills */}
            {mainSkills.length > 0 && (
              <div>
                <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider mb-1">Main Skills</div>
                <div className="flex flex-wrap gap-1">
                  {mainSkills.map((s) => (
                    <span
                      key={s.skill}
                      className="inline-flex items-center px-1.5 py-0.5 rounded-md text-[11px] font-medium bg-brand-100 text-brand-700 dark:bg-brand-900/40 dark:text-brand-300"
                    >
                      {s.skill}
                    </span>
                  ))}
                </div>
              </div>
            )}

            {/* Top Skills */}
            {topSkills.length > 0 && (
              <div>
                <div className="text-gray-400 dark:text-gray-500 text-[10px] uppercase tracking-wider mb-1">Top Skills</div>
                <div className="flex flex-wrap gap-1">
                  {topSkills.map((s) => (
                    <span
                      key={s.skill}
                      className="inline-flex items-center gap-0.5 px-1.5 py-0.5 rounded-md text-[11px] bg-gray-100 text-gray-600 dark:bg-gray-700 dark:text-gray-300"
                    >
                      {s.skill}
                      <span className="text-[9px] text-gray-400 dark:text-gray-500">L{s.proficiency}</span>
                    </span>
                  ))}
                </div>
              </div>
            )}

            {/* No skills */}
            {skills.length === 0 && (
              <div className="text-[11px] text-gray-400 dark:text-gray-500 italic">No skills imported yet.</div>
            )}
          </div>
        </>
      )}
    </div>
  );
}