init

lib/src/log.js

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+/* const overrides = [
+  'log',
+];
+
+const proxies = overrides.reduce((output, key) => ({
+  ...output,
+  [key]: window.console[key],
+}), {}); */
+
+const proxyConsole = window.console;
+
+class Log {
+  constructor() {
+    this.logs = [];
+    this.listeners = [];
+  }
+
+  listen(fn) {
+    this.listeners.push(fn);
+    fn(this.logs);
+  }
+
+  unlisten(fn) {
+    this.listeners = this.listeners.filter(l => l !== fn);
+  }
+
+  log(type, data) {
+    const entry = {
+      type,
+      data,
+    };
+    this.logs.push(entry);
+    this.listeners.forEach(l => l(entry));
+  }
+
+  info(data) {
+    this.log('info', data);
+  }
+
+  error(error) {
+    this.log('error', error);
+  }
+
+  warn(data) {
+    this.log('warn', data);
+  }
+
+  debug(data) {
+    this.log('debug', data);
+  }
+
+  attach(keep) {
+    window.console = {
+      error: (...data) => this.error(...data),
+      warn: (data) => this.warn(data),
+      info: (data) => this.info(data),
+      log: (data) => this.info(data),
+      debug: (data) => this.debug(data),
+    };
+    ErrorUtils.setGlobalHandler((err, fatal) => {
+      this.error(err);
+    });
+  }
+
+  detach() {
+    overrides.forEach((key) => {
+      window.console[key] = proxies[key];
+    });
+  }
+}
+
+const log = new Log();
+
+export default log;