import { RULE_CHANNELS, RULE_NODE_KINDS } from './vocabulary';

/**
 * Machine-readable authoring surface for chart visualization primitives.
 *
 * The SDK build serializes this registry to `capabilities.json`. Keep the
 * registry aligned with the public builders and the serialized-node schema;
 * contract tests enforce both relationships.
 */
export const visualizationGrammarCapabilities = {
  contractVersion: 1,
  moduleSpecifier: 'npm:@rippling/rippling-sdk/lib/charts',
  builders: {
    value: {
      kind: 'input',
      returns: 'number',
    },
    literal: {
      kind: 'literal',
      parameters: ['scalar'],
      returns: 'value',
    },
    equals: {
      kind: 'comparison',
      parameters: ['value', 'value'],
      returns: 'condition',
    },
    isNot: {
      kind: 'comparison',
      parameters: ['value', 'value'],
      returns: 'condition',
    },
    lessThan: {
      kind: 'comparison',
      parameters: ['value', 'value'],
      returns: 'condition',
    },
    greaterThan: {
      kind: 'comparison',
      parameters: ['value', 'value'],
      returns: 'condition',
    },
    lessOrEqual: {
      kind: 'comparison',
      parameters: ['value', 'value'],
      returns: 'condition',
    },
    greaterOrEqual: {
      kind: 'comparison',
      parameters: ['value', 'value'],
      returns: 'condition',
    },
    when: {
      kind: 'conditional',
      parameters: ['condition', 'color', 'color?'],
      returns: 'conditional-color',
    },
    color: {
      kind: 'channel',
      parameters: ['conditional-color'],
      returns: 'color-rule',
      placeholderChannel: 'color',
    },
  },
  supportedChannels: RULE_CHANNELS,
  supportedNodeKinds: RULE_NODE_KINDS,
} as const;