import type { DiagramNode as DiagramNodeType } from '../../api/queries/diagrams';
import type { NodeConfig } from './types';
import { colorForType, iconForType } from './node-colors';
import { ConfigBadge } from './ConfigBadge';

const TOP_BAR_HEIGHT = 6;
const CORNER_RADIUS = 4;

interface DiagramNodeProps {
  node: DiagramNodeType;
  isHovered: boolean;
  isSelected: boolean;
  config?: NodeConfig;
  onClick: () => void;
  onDoubleClick?: () => void;
  onMouseEnter: () => void;
  onMouseLeave: () => void;
}

export function DiagramNode({
  node, isHovered, isSelected, config, onClick, onDoubleClick, onMouseEnter, onMouseLeave,
}: DiagramNodeProps) {
  const x = node.x ?? 0;
  const y = node.y ?? 0;
  const w = node.width ?? 120;
  const h = node.height ?? 40;
  const color = colorForType(node.type);
  const icon = iconForType(node.type);

  // Extract label parts: type name and detail
  const typeName = node.type?.replace(/^EIP_/, '').replace(/_/g, ' ') ?? '';
  const detail = node.label || '';

  return (
    <g
      data-node-id={node.id}
      transform={`translate(${x}, ${y})`}
      onClick={(e) => { e.stopPropagation(); onClick(); }}
      onDoubleClick={(e) => { e.stopPropagation(); onDoubleClick?.(); }}
      onMouseEnter={onMouseEnter}
      onMouseLeave={onMouseLeave}
      style={{ cursor: 'pointer' }}
    >
      {/* Selection ring */}
      {isSelected && (
        <rect
          x={-2}
          y={-2}
          width={w + 4}
          height={h + 4}
          rx={CORNER_RADIUS + 2}
          fill="none"
          stroke="#C6820E"
          strokeWidth={2.5}
        />
      )}

      {/* Card background */}
      <rect
        x={0}
        y={0}
        width={w}
        height={h}
        rx={CORNER_RADIUS}
        fill={isHovered ? '#F5F0EA' : 'white'}
        stroke={isHovered || isSelected ? color : '#E4DFD8'}
        strokeWidth={isHovered || isSelected ? 1.5 : 1}
      />

      {/* Colored top bar */}
      <rect x={0} y={0} width={w} height={TOP_BAR_HEIGHT} rx={CORNER_RADIUS} fill={color} />
      <rect x={CORNER_RADIUS} y={0} width={w - CORNER_RADIUS * 2} height={TOP_BAR_HEIGHT} fill={color} />

      {/* Icon */}
      <text x={14} y={h / 2 + 6} fill={color} fontSize={14}>
        {icon}
      </text>

      {/* Type name */}
      <text x={32} y={h / 2 + 1} fill="#1A1612" fontSize={11} fontWeight={600}>
        {typeName}
      </text>

      {/* Detail label (truncated) */}
      {detail && detail !== typeName && (
        <text x={32} y={h / 2 + 14} fill="#5C5347" fontSize={10}>
          {detail.length > 22 ? detail.slice(0, 20) + '...' : detail}
        </text>
      )}

      {/* Config badges */}
      {config && <ConfigBadge nodeWidth={w} config={config} />}
    </g>
  );
}