"use client";

import {
  BadgeCheck, Bot, Braces, Database, FileCheck2, FileLock2, Flag,
  GitCommitHorizontal, PackageCheck, RadioTower, RefreshCcw, Rocket,
  Send, ShieldCheck, Workflow,
} from "lucide-react";
import { Handle, Position, type Node, type NodeProps } from "@xyflow/react";
import type { CardData } from "@/lib/flow";
import type { NodeType } from "@/lib/types";

const ICONS: Record<NodeType, typeof Database> = {
  input: Database,
  contract: FileLock2,
  operation: RadioTower,
  worker: Bot,
  attempt: Send,
  artifact: PackageCheck,
  validator: ShieldCheck,
  validation: FileCheck2,
  decision: BadgeCheck,
  checkpoint: Flag,
  publication: Rocket,
  transaction: GitCommitHorizontal,
  readback: RefreshCcw,
};

export function FlowCard({ data, selected }: NodeProps<Node<CardData>>) {
  const item = data.item;
  const Icon = ICONS[item.node_type] ?? Braces;
  return <article
    className={`flowCard type-${item.node_type} status-${item.status} ${selected ? "selected" : ""} ${data.dimmed ? "dimmed" : ""}`}
    data-node-id={item.id}
  >
    <Handle type="target" position={Position.Left} className="nodeHandle" />
    <header className="cardHeader">
      <span className="nodeIcon"><Icon size={17} strokeWidth={1.9} /></span>
      <span className="cardKind">{item.node_type}</span>
      <span className="sequence">{String(item.sequence).padStart(2, "0")}</span>
    </header>
    <div className="cardBody">
      <h3>{item.title}</h3>
      <p>{item.subtitle}</p>
      <div className="recordType"><Workflow size={12} /> {item.record.model_name}</div>
      {item.metrics.length ? <dl className="metricGrid">
        {item.metrics.slice(0, 3).map((metric) => <div key={`${metric.label}:${metric.value}`}>
          <dt>{metric.label}</dt><dd>{metric.value}</dd>
        </div>)}
      </dl> : null}
    </div>
    <footer className="cardFooter">
      <span className={`statusDot status-${item.status}`} />
      <strong>{item.status}</strong>
      {item.agent_role ? <span>{item.agent_role}</span> : null}
      {item.task_kind ? <span className="taskKind">{item.task_kind}</span> : null}
    </footer>
    <Handle type="source" position={Position.Right} className="nodeHandle" />
  </article>;
}