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mc_test/node_modules/roarr/dist/factories/createLogger.js.flow

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+// @flow
+
+import environmentIsNode from 'detect-node';
+import createGlobalThis from 'globalthis';
+import stringify from 'json-stringify-safe';
+import {
+  sprintf,
+} from 'sprintf-js';
+import {
+  logLevels,
+} from '../constants';
+import type {
+  LoggerType,
+  MessageContextType,
+  MessageEventHandlerType,
+  TranslateMessageFunctionType,
+} from '../types';
+
+const globalThis = createGlobalThis();
+
+let domain;
+
+if (environmentIsNode) {
+  // eslint-disable-next-line global-require
+  domain = require('domain');
+}
+
+const getParentDomainContext = () => {
+  if (!domain) {
+    return {};
+  }
+
+  const parentRoarrContexts = [];
+
+  let currentDomain = process.domain;
+
+  // $FlowFixMe
+  if (!currentDomain || !currentDomain.parentDomain) {
+    return {};
+  }
+
+  while (currentDomain && currentDomain.parentDomain) {
+    currentDomain = currentDomain.parentDomain;
+
+    if (currentDomain.roarr && currentDomain.roarr.context) {
+      parentRoarrContexts.push(currentDomain.roarr.context);
+    }
+  }
+
+  let domainContext = {};
+
+  for (const parentRoarrContext of parentRoarrContexts) {
+    domainContext = {
+      ...domainContext,
+      ...parentRoarrContext,
+    };
+  }
+
+  return domainContext;
+};
+
+const getFirstParentDomainContext = () => {
+  if (!domain) {
+    return {};
+  }
+
+  let currentDomain = process.domain;
+
+  // $FlowFixMe
+  if (currentDomain && currentDomain.roarr && currentDomain.roarr.context) {
+    return currentDomain.roarr.context;
+  }
+
+  // $FlowFixMe
+  if (!currentDomain || !currentDomain.parentDomain) {
+    return {};
+  }
+
+  while (currentDomain && currentDomain.parentDomain) {
+    currentDomain = currentDomain.parentDomain;
+
+    if (currentDomain.roarr && currentDomain.roarr.context) {
+      return currentDomain.roarr.context;
+    }
+  }
+
+  return {};
+};
+
+const createLogger = (onMessage: MessageEventHandlerType, parentContext?: MessageContextType): LoggerType => {
+  // eslint-disable-next-line id-length, unicorn/prevent-abbreviations
+  const log = (a, b, c, d, e, f, g, h, i, k) => {
+    const time = Date.now();
+    const sequence = globalThis.ROARR.sequence++;
+
+    let context;
+    let message;
+
+    if (typeof a === 'string') {
+      context = {
+        ...getFirstParentDomainContext(),
+        ...parentContext || {},
+      };
+      // eslint-disable-next-line id-length, object-property-newline
+      const {...args} = {a, b, c, d, e, f, g, h, i, k};
+      const values = Object.keys(args).map((key) => {
+        return args[key];
+      });
+      // eslint-disable-next-line unicorn/no-reduce
+      const hasOnlyOneParameterValued = 1 === values.reduce((accumulator, value) => {
+        // eslint-disable-next-line no-return-assign, no-param-reassign
+        return accumulator += typeof value === 'undefined' ? 0 : 1;
+      }, 0);
+      message = hasOnlyOneParameterValued ? sprintf('%s', a) : sprintf(a, b, c, d, e, f, g, h, i, k);
+    } else {
+      if (typeof b !== 'string') {
+        throw new TypeError('Message must be a string.');
+      }
+
+      context = JSON.parse(stringify({
+        ...getFirstParentDomainContext(),
+        ...parentContext || {},
+        ...a,
+      }));
+
+      message = sprintf(b, c, d, e, f, g, h, i, k);
+    }
+
+    onMessage({
+      context,
+      message,
+      sequence,
+      time,
+      version: '1.0.0',
+    });
+  };
+
+  log.child = (context: TranslateMessageFunctionType | MessageContextType): LoggerType => {
+    if (typeof context === 'function') {
+      return createLogger((message) => {
+        if (typeof context !== 'function') {
+          throw new TypeError('Unexpected state.');
+        }
+        onMessage(context(message));
+      }, parentContext);
+    }
+
+    return createLogger(onMessage, {
+      ...getFirstParentDomainContext(),
+      ...parentContext,
+      ...context,
+    });
+  };
+
+  log.getContext = (): MessageContextType => {
+    return {
+      ...getFirstParentDomainContext(),
+      ...parentContext || {},
+    };
+  };
+
+  log.adopt = async (routine, context) => {
+    if (!domain) {
+      return routine();
+    }
+
+    const adoptedDomain = domain.create();
+
+    return adoptedDomain
+      .run(() => {
+        // $FlowFixMe
+        adoptedDomain.roarr = {
+          context: {
+            ...getParentDomainContext(),
+            ...context,
+          },
+        };
+
+        return routine();
+      });
+  };
+
+  for (const logLevel of Object.keys(logLevels)) {
+    // eslint-disable-next-line id-length, unicorn/prevent-abbreviations
+    log[logLevel] = (a, b, c, d, e, f, g, h, i, k) => {
+      return log.child({
+        logLevel: logLevels[logLevel],
+      })(a, b, c, d, e, f, g, h, i, k);
+    };
+  }
+
+  // @see https://github.com/facebook/flow/issues/6705
+  // $FlowFixMe
+  return log;
+};
+
+export default createLogger;