"use client";

import Link from "next/link";
import type { Campaign } from "@/payload-types";
import { cn } from "@/lib/utils";
import { ClockIcon, CrosshairIcon, UsersIcon } from "lucide-react";

interface CampaignCardCampaign extends Pick<
  Campaign,
  "id" | "name" | "summary" | "status" | "startDate" | "endDate"
> {
  readonly coverImageUrl: string | null;
  readonly missionCount: number;
  readonly avgPlayers: number;
  readonly avgDurationMinutes: number;
}

type CampaignCardInput = CampaignCardCampaign | Campaign;

interface CampaignCardProps {
  readonly campaign: CampaignCardInput;
}

const statusColors: Record<Campaign["status"], string> = {
  concept: "bg-muted text-muted-foreground",
  inProgress: "bg-blue-500/20 text-blue-400",
  completed: "bg-emerald-500/20 text-emerald-400",
};

const statusLabels: Record<Campaign["status"], string> = {
  concept: "Concept",
  inProgress: "In Progress",
  completed: "Completed",
};

export function CampaignCard({ campaign }: CampaignCardProps) {
  const coverImageUrl =
    "coverImageUrl" in campaign
      ? campaign.coverImageUrl
      : typeof campaign.coverImage === "object" && campaign.coverImage !== null
        ? (campaign.coverImage.url ?? null)
        : null;
  const missionCount = "missionCount" in campaign ? campaign.missionCount : 0;
  const avgPlayers = "avgPlayers" in campaign ? campaign.avgPlayers : 0;
  const avgDurationMinutes = "avgDurationMinutes" in campaign ? campaign.avgDurationMinutes : 0;

  const roundedDuration = Math.round(avgDurationMinutes);
  const durationHours = Math.floor(roundedDuration / 60);
  const durationMinutes = roundedDuration % 60;
  const durationLabel =
    roundedDuration >= 60 ? `${durationHours}h ${durationMinutes}m` : `${roundedDuration}m`;
  const playersLabel = Number.isInteger(avgPlayers) ? avgPlayers.toString() : avgPlayers.toFixed(1);

  const owner = (campaign as any).owner;
  const ownerName =
    owner && typeof owner === "object" && "displayName" in owner
      ? owner.displayName
      : "Unknown";

  return (
    <Link
      href={`/intelligence/campaigns/${campaign.id}`}
      aria-label={`Open campaign ${campaign.name}`}
      className="block rounded-lg focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring focus-visible:ring-offset-2 focus-visible:ring-offset-background"
    >
      <article className="group relative aspect-[4/3] overflow-hidden rounded-lg border border-border/70 bg-card transition-colors duration-300 group-hover:border-foreground/30">
        <div className="absolute inset-0 scale-100 transition-transform duration-500 ease-out group-hover:scale-110 motion-reduce:transition-none motion-reduce:group-hover:scale-100">
          {coverImageUrl !== null ? (
            <img
              src={coverImageUrl}
              alt=""
              aria-hidden="true"
              className="absolute inset-0 size-full object-cover opacity-30 transition-opacity duration-500 ease-out group-hover:opacity-50 motion-reduce:transition-none"
            />
          ) : (
            <div
              aria-hidden="true"
              className="absolute inset-0 bg-gradient-to-br from-muted to-muted/50 opacity-30 transition-opacity duration-500 ease-out group-hover:opacity-50 motion-reduce:transition-none"
            />
          )}
        </div>

        <div
          aria-hidden="true"
          className="absolute inset-0 bg-gradient-to-t from-black/80 via-black/40 to-transparent"
        />

        <span
          className={cn(
            "absolute right-3 top-3 z-10 rounded-full px-2 py-1 text-[10px] font-semibold uppercase tracking-wider",
            statusColors[campaign.status],
          )}
        >
          {statusLabels[campaign.status]}
        </span>

        <div className="absolute inset-0 z-10 flex items-center justify-center px-6 pb-6 text-center">
          <div className="flex max-w-full flex-col items-center gap-2">
            <h2 className="text-balance text-center text-xl font-bold text-white drop-shadow-lg">
              {campaign.name}
            </h2>
            <p className="text-sm uppercase tracking-wider text-white/70 drop-shadow">
              {statusLabels[campaign.status]}
            </p>
          </div>
        </div>

        <footer className="absolute inset-x-0 bottom-0 z-20 flex translate-y-4 items-center bg-black/60 px-2 py-2.5 opacity-0 backdrop-blur-sm transition-all duration-300 ease-out group-hover:translate-y-0 group-hover:opacity-100 motion-reduce:transition-none">
          <div className="flex min-w-0 flex-1 items-center justify-center gap-1.5 border-r border-white/15 text-xs text-white/80">
            <CrosshairIcon aria-hidden="true" className="size-3.5 shrink-0 text-white/60" />
            <span className="sr-only">Missions</span>
            <span className="truncate">{missionCount}</span>
          </div>
          <div className="flex min-w-0 flex-1 items-center justify-center gap-1.5 border-r border-white/15 text-xs text-white/80">
            <UsersIcon aria-hidden="true" className="size-3.5 shrink-0 text-white/60" />
            <span className="sr-only">Avg players</span>
            <span className="truncate">{playersLabel}</span>
          </div>
          <div className="flex min-w-0 flex-1 items-center justify-center gap-1.5 text-xs text-white/80">
            <ClockIcon aria-hidden="true" className="size-3.5 shrink-0 text-white/60" />
            <span className="sr-only">Avg duration</span>
             <span className="truncate">{durationLabel}</span>
          </div>
          <div className="flex min-w-0 flex-1 items-center justify-center gap-1.5 text-xs text-white/80">
            <div className="text-right">
              <div className="truncate">{ownerName}</div>
              <span className="text-[10px] uppercase tracking-wider text-white/60">Owner</span>
            </div>
          </div>
        </footer>
      </article>
    </Link>
  );
}