import { Award, Media } from "@/payload-types";
import { Item, ItemContent, ItemDescription, ItemHeader, ItemTitle } from "@/components/ui/item";
import { convertLexicalToPlaintext } from "@payloadcms/richtext-lexical/plaintext";
import { RibbonViewer } from "@/components/frontend/account/RibbonViewer";
import { RibbonDesign } from "@/components/admin/awards/RibbonDesigner";
import { Button } from "@/components/ui/button";
import { cn } from "@/lib/utils";
import { AwardIcon, LockIcon } from "lucide-react";

/**
 * Card shown on the awards listing page. Unlike the profile's AwardCard
 * (which wraps an individual's grant), this reviews a single definable award
 * type — ribbon or medal — so users can inspect the award art and its
 * full requirements. Commendations are intentionally out of scope.
 *
 * Ribbon art is rendered at a fixed, centered width so every ribbon (and its
 * container) is an identical, justified size across the grid. Medal art is
 * currently hidden; only the ribbon art is shown.
 */
interface AwardListingCardProps {
  award: Award;
  awardImage?: Media | null;
  backgroundImage?: Media | null;
  showGrantButton?: boolean;
  onGrantClick?: () => void;
  canGrant?: boolean | null;
  remainingGrants?: number | null;
}

export function AwardListingCard({
  award,
  awardImage,
  backgroundImage,
  showGrantButton = false,
  onGrantClick,
  canGrant,
  remainingGrants,
}: AwardListingCardProps) {
  const type = award.type ?? "commendation";
  const isMedal = type === "medal";
  const hasRibbonArt =
    type === "ribbon" &&
    award.ribbonDesign &&
    typeof award.ribbonDesign === "object" &&
    Array.isArray((award.ribbonDesign as RibbonDesign).stripes);
  const hasArt = hasRibbonArt || Boolean(awardImage?.url);
  const bgUrl = backgroundImage?.url;

  return (
    <Item
      variant="outline"
      className={cn(
        "relative overflow-hidden min-w-0 h-full flex flex-col flex-nowrap text-center",
        isMedal && "justify-center medal-card medal-card-overflow",
      )}
    >
      {bgUrl && (
        <>
          <img
            src={bgUrl}
            alt=""
            aria-hidden
            className="medal-card-bg absolute inset-0 w-full h-full object-cover pointer-events-none select-none"
          />
          <div
            aria-hidden
            className="medal-card-scrim absolute inset-0 pointer-events-none bg-gradient-to-b from-background/70 via-background/60 to-background/80"
          />
        </>
      )}
      <ItemHeader className={cn("relative z-10 flex flex-col items-center gap-2", isMedal && "justify-center")}>
        {hasArt && (
          <div
            className={cn(
              "flex w-full items-center justify-center",
              hasRibbonArt ? "h-20" : "h-16",
            )}
          >
            {hasRibbonArt ? (
              <div className="w-44 max-w-full">
                <RibbonViewer
                  ribbonDesign={award.ribbonDesign as RibbonDesign}
                  showRibbonOnly={false}
                />
              </div>
            ) : awardImage?.url ? (
              <img src={awardImage.url} alt={award.name} className="size-16 object-contain" />
            ) : null}
          </div>
        )}

        <ItemTitle className={cn("mt-1", isMedal && "text-lg text-shadow-lg text-shadow-white/15")}>
          {award.name}
        </ItemTitle>
        <span className="text-[9px] uppercase tracking-wider text-muted-foreground font-mono">
          {type}
        </span>
      </ItemHeader>

      <ItemContent className="relative z-10 flex flex-col gap-2">
        <ItemDescription className="min-w-0 break-words text-center text-sm leading-relaxed">
          {award.description
            ? convertLexicalToPlaintext({ data: award.description })
            : "No description available."}
        </ItemDescription>
        {award.experiencePoints != null && (
          <span className="mt-1 font-mono text-sm text-muted-foreground">
            +{award.experiencePoints} XP
          </span>
        )}
      </ItemContent>

      {showGrantButton && (
        <div className="relative z-10 mt-auto w-full">
          {canGrant === false ? (
            <Button
              variant="outline"
              size="sm"
              disabled
              className="w-full opacity-50 cursor-not-allowed"
            >
              <LockIcon data-icon="inline-start" />
              You cannot grant this award
            </Button>
          ) : onGrantClick ? (
            <Button
              variant="outline"
              size="sm"
              onClick={onGrantClick}
              className="w-full flex flex-col gap-0 h-full py-1.5"
            >
              <span className="flex flex-row gap-1">
                <AwardIcon data-icon="inline-start" />
                Award this
              </span>
              <span className="opacity-50">
                {remainingGrants === undefined
                  ? ""
                  : remainingGrants === null
                    ? ` (\u221E grant${remainingGrants === 1 ? "" : "s"} remaining)`
                    : ` (${remainingGrants} grant${remainingGrants === 1 ? "" : "s"} remaining)`}{" "}
              </span>
            </Button>
          ) : null}
        </div>
      )}
    </Item>
  );
}