import hash from '@emotion/hash';
function safePrefix(classNamePrefix) {
  var prefix = String(classNamePrefix);
  if (process.env.NODE_ENV !== 'production') {
    if (prefix.length >= 256) {
      console.error("MUI: The class name prefix is too long: ".concat(prefix, "."));
    }
  }
  return prefix;
}
var themeHashCache = {};

/**
 * Beta feature.
 *
 * This is an alternative to createGenerateClassName.js.
 * Instead of using a index counter, it hash the style sheets to generate the class name.
 * The class name call order invariant. With this property, we can cache the style sheets on the server.
 */
export default function createGenerateClassNameHash() {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var _options$dangerouslyU = options.dangerouslyUseGlobalCSS,
    dangerouslyUseGlobalCSS = _options$dangerouslyU === void 0 ? false : _options$dangerouslyU,
    _options$productionPr = options.productionPrefix,
    productionPrefix = _options$productionPr === void 0 ? 'jss' : _options$productionPr,
    _options$seed = options.seed,
    seed = _options$seed === void 0 ? '' : _options$seed;
  var ruleCounter = 0;
  return function (rule, styleSheet) {
    var isStatic = !styleSheet.options.link;
    if (dangerouslyUseGlobalCSS && styleSheet && styleSheet.options.name && isStatic) {
      return "".concat(safePrefix(styleSheet.options.name), "-").concat(rule.key);
    }
    var suffix;

    // It's a static rule.
    if (isStatic) {
      var themeHash = themeHashCache[styleSheet.options.theme];
      if (!themeHash) {
        themeHash = hash(JSON.stringify(styleSheet.options.theme));
        themeHashCache[styleSheet.theme] = themeHash;
      }
      var raw = styleSheet.rules.raw[rule.key];
      suffix = hash("".concat(themeHash).concat(rule.key).concat(JSON.stringify(raw)));
    }
    if (!suffix) {
      ruleCounter += 1;
      if (process.env.NODE_ENV !== 'production') {
        if (ruleCounter >= 1e10) {
          console.warn(['MUI: You might have a memory leak.', 'The ruleCounter is not supposed to grow that much.'].join(''));
        }
      }
      suffix = ruleCounter;
    }
    if (process.env.NODE_ENV === 'production') {
      return "".concat(productionPrefix).concat(seed).concat(suffix);
    }

    // Help with debuggability.
    if (styleSheet.options.classNamePrefix) {
      return "".concat(safePrefix(styleSheet.options.classNamePrefix), "-").concat(rule.key, "-").concat(seed).concat(suffix);
    }
    return "".concat(rule.key, "-").concat(seed).concat(suffix);
  };
}