import {
  RawValueSignature,
  SpecifyZIndexValue,
  TokenState,
} from '@specifyapp/specify-design-token-format';
import { DEFAULT_UNRESOLVABLE_STRATEGY } from '../aliasStrategies/throwOnUnresolvable.js';
import {
  CssResolvableAliasStrategy,
  CssUnresolvableAliasStrategy,
} from '../aliasStrategies/CssAliasStrategy.js';

/**
 * Converts a `TokenState<'zIndex'>` to a css value.
 * E.g: `10`
 */
export function zIndexToCss<UnresolvableReturn = never>(
  aliasStrategy: CssResolvableAliasStrategy,
  unresolvableAliasStrategy: CssUnresolvableAliasStrategy<UnresolvableReturn> = DEFAULT_UNRESOLVABLE_STRATEGY,
) {
  return (tokenState: TokenState<'zIndex'>) =>
    tokenState
      .getStatefulValueResult()
      .mapResolvableTopLevelAlias(aliasStrategy)
      .mapUnresolvableTopLevelAlias(alias => unresolvableAliasStrategy(tokenState, alias))
      .mapTopLevelValue(value =>
        value
          .mapRawValue(rawValue => rawZIndexToCss(rawValue))
          .mapResolvableModeLevelAlias(aliasStrategy)
          .mapUnresolvableModeLevelAlias(alias => unresolvableAliasStrategy(tokenState, alias))
          .unwrap(),
      )
      .unwrap();
}

/**
 * Converts a `RawValueSignature<'zIndex'>` to css.
 */
export function rawZIndexToCss(zIndex: RawValueSignature<'zIndex'>) {
  return zIndex.toString();
}

/**
 * Converts a zIndex to css.
 */
export function zIndexValueToCss(zIndex: SpecifyZIndexValue) {
  return zIndex.toString();
}