"use client";

import { useMemo } from "react";
import {
  Backpack,
  Crosshair,
  Eye,
  Glasses,
  Rocket,
  Shield,
  Shirt,
  Target,
  User,
} from "lucide-react";
import type { Asset, Loadout } from "@/payload-types";
import {
  WARDROBE_SLOT_LAYOUT,
  getLoadoutSlot,
  type WardrobeSlotIcon,
  type LoadoutSlots,
  type LockerGridItem,
} from "@/lib/locker";
import { cn } from "@/lib/utils";
import { getAssetIcon } from "./LockerGrid";
import { Tooltip, TooltipContent, TooltipTrigger } from "@/components/ui/tooltip";

function slotIcon(icon: WardrobeSlotIcon, filled: boolean) {
  const cls = filled ? "size-3.5" : "size-3";
  switch (icon) {
    case "head":
      return <User className={cls} />;
    case "eye":
      return <Eye className={cls} />;
    case "face":
      return <Glasses className={cls} />;
    case "chest":
      return <Shield className={cls} />;
    case "torso":
      return <Shirt className={cls} />;
    case "back":
      return <Backpack className={cls} />;
    case "weapon":
      return <Crosshair className={cls} />;
    case "sidearm":
      return <Target className={cls} />;
    case "heavy":
      return <Rocket className={cls} />;
  }
}

function resolveSlotAsset(
  value: LoadoutSlots[keyof LoadoutSlots],
  items: LockerGridItem[],
): Asset | null {
  if (value == null) return null;
  if (typeof value === "object" && "id" in value) return value as Asset;
  const id = value as number;
  return items.find((i) => i.assetId === id)?.asset ?? null;
}

export function Wardrobe({
  loadout,
  items,
  onSlotClick,
}: {
  loadout: Loadout;
  items: LockerGridItem[];
  onSlotClick: (slotName: string) => void;
}) {
  const slots = (loadout.slots ?? {}) as LoadoutSlots;

  const filled = useMemo(() => {
    const set = new Set<string>();
    for (const layout of WARDROBE_SLOT_LAYOUT) {
      const value = slots[layout.name];
      if (value != null) set.add(layout.zone);
    }
    return set;
  }, [slots]);

  return (
    <div className="relative mx-auto w-full max-w-100">
      <div className="relative" style={{ aspectRatio: "260 / 380" }}>
        <img
          src="/images/soldier-pose-alpha.png"
          alt="Character wardrobe reflecting the equipped loadout"
          className="h-full w-full object-contain pointer-events-none select-none"
          draggable={false}
        />

        {WARDROBE_SLOT_LAYOUT.map((layout) => {
          const value = slots[layout.name];
          const asset = resolveSlotAsset(value, items);
          return (
            <Tooltip key={layout.name}>
              <TooltipTrigger asChild>
                <button
                  type="button"
                  aria-label={`${layout.label} slot: ${asset ? asset.name : "empty"}`}
                  onClick={() => onSlotClick(layout.name)}
                  className={cn(
                    "absolute flex items-center justify-center rounded-full border transition-colors",
                    "-translate-x-1/2 -translate-y-1/2 cursor-pointer",
                    asset
                      ? "size-7 border-amber-400/70 bg-amber-500/25 text-amber-200 hover:bg-amber-500/40"
                      : "size-6 border-border bg-background/80 text-muted-foreground hover:border-primary hover:text-foreground",
                  )}
                  style={{ left: `${layout.x}%`, top: `${layout.y}%` }}
                >
                  {asset ? getAssetIcon(asset.assetType, "size-3.5") : slotIcon(layout.icon, false)}
                </button>
              </TooltipTrigger>
              <TooltipContent
                side="right"
                sideOffset={8}
                className="bg-popover text-popover-foreground border border-border text-sm px-3.5 py-2"
              >
                <div className="flex flex-col gap-0.5">
                  <span className="font-semibold">{layout.label}</span>
                  <span className="text-muted-foreground">
                    {asset ? asset.name : "Empty"}
                  </span>
                </div>
              </TooltipContent>
            </Tooltip>
          );
        })}
      </div>
    </div>
  );
}