5 files changed, 220 insertions, 0 deletions
diff --git a/app_expo/services/reactotron/index.ts b/app_expo/services/reactotron/index.ts
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index 0000000..0c02f1f
--- /dev/null
+++ b/app_expo/services/reactotron/index.ts
@@ -0,0 +1 @@
+export * from './reactotron'
diff --git a/app_expo/services/reactotron/reactotron-config.ts b/app_expo/services/reactotron/reactotron-config.ts
new file mode 100644
index 0000000..40e9c93
--- /dev/null
+++ b/app_expo/services/reactotron/reactotron-config.ts
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+export interface ReactotronConfig {
+  /** The name of the app. */
+  name?: string
+  /** The host to connect to: default 'localhost'. */
+  host?: string
+  /** Should we use async storage */
+  useAsyncStorage?: boolean
+  /** Should we clear Reactotron when load? */
+  clearOnLoad?: boolean
+  /** Root state logging. */
+  state?: {
+    /** log the initial data that we put into the state on startup? */
+    initial?: boolean
+    /** log snapshot changes. */
+    snapshots?: boolean
+  }
+}
+
+/**
+ * The default Reactotron configuration.
+ */
+export const DEFAULT_REACTOTRON_CONFIG: ReactotronConfig = {
+  clearOnLoad: true,
+  host: 'localhost',
+  useAsyncStorage: true,
+  state: {
+    initial: true,
+    snapshots: false,
+  },
+}
diff --git a/app_expo/services/reactotron/reactotron.ts b/app_expo/services/reactotron/reactotron.ts
new file mode 100644
index 0000000..6a20a75
--- /dev/null
+++ b/app_expo/services/reactotron/reactotron.ts
@@ -0,0 +1,185 @@
+import { Tron } from './tron'
+import AsyncStorage from '@react-native-async-storage/async-storage'
+import { RootStore } from '../../models/root-store/root-store'
+import { onSnapshot } from 'mobx-state-tree'
+import { ReactotronConfig, DEFAULT_REACTOTRON_CONFIG } from './reactotron-config'
+import { mst } from 'reactotron-mst'
+import { clear } from '../../utils/storage'
+import { RootNavigation } from '../../navigators'
+import { Platform } from 'react-native'
+
+// Teach TypeScript about the bad things we want to do.
+declare global {
+  interface Console {
+    /**
+     * Hey, it's Reactotron if we're in dev, and no-ops if we're in prod.
+     */
+    tron: typeof Tron
+  }
+}
+
+/** Do Nothing. */
+const noop = () => undefined
+
+// in dev, we attach Reactotron, in prod we attach a interface-compatible mock.
+if (__DEV__) {
+  console.tron = Tron // attach reactotron to `console.tron`
+} else {
+  // attach a mock so if things sneaky by our __DEV__ guards, we won't crash.
+  console.tron = {
+    benchmark: noop,
+    clear: noop,
+    close: noop,
+    configure: noop,
+    connect: noop,
+    display: noop,
+    error: noop,
+    image: noop,
+    log: noop,
+    logImportant: noop,
+    onCustomCommand: noop,
+    overlay: noop,
+    reportError: noop,
+    send: noop,
+    startTimer: noop,
+    storybookSwitcher: noop,
+    use: noop,
+    useReactNative: noop,
+    warn: noop,
+  }
+}
+
+/**
+ * You'll probably never use the service like this since we hang the Reactotron
+ * instance off of `console.tron`. This is only to be consistent with the other
+ * services.
+ */
+export class Reactotron {
+  config: ReactotronConfig
+
+  rootStore: any
+
+  /**
+   * Create the Reactotron service.
+   *
+   * @param config the configuration
+   */
+  constructor(config: ReactotronConfig = DEFAULT_REACTOTRON_CONFIG) {
+    // merge the passed in config with some defaults
+    this.config = {
+      host: 'localhost',
+      useAsyncStorage: true,
+      ...config,
+      state: {
+        initial: false,
+        snapshots: false,
+        ...(config && config.state),
+      },
+    }
+  }
+
+  /**
+   * Hook into the root store for doing awesome state-related things.
+   *
+   * @param rootStore The root store
+   */
+  setRootStore(rootStore: any, initialData: any) {
+    if (__DEV__) {
+      rootStore = rootStore as RootStore // typescript hack
+      this.rootStore = rootStore
+
+      const { initial, snapshots } = this.config.state
+      const name = 'ROOT STORE'
+
+      // logging features
+      if (initial) {
+        console.tron.display({
+          name,
+          value: initialData,
+          preview: 'Initial State',
+        })
+      }
+      // log state changes?
+      if (snapshots) {
+        onSnapshot(rootStore, (snapshot) => {
+          console.tron.display({ name, value: snapshot, preview: 'New State' })
+        })
+      }
+
+      console.tron.trackMstNode(rootStore)
+    }
+  }
+
+  /**
+   * Configure reactotron based on the the config settings passed in, then connect if we need to.
+   */
+  async setup() {
+    // only run this in dev... metro bundler will ignore this block: 🎉
+    if (__DEV__) {
+      // configure reactotron
+      Tron.configure({
+        name: this.config.name || require('../../../package.json').name,
+        host: this.config.host,
+      })
+
+      // hookup middleware
+      if (Platform.OS !== 'web') {
+        if (this.config.useAsyncStorage) {
+          Tron.setAsyncStorageHandler(AsyncStorage)
+        }
+        Tron.useReactNative({
+          asyncStorage: this.config.useAsyncStorage ? undefined : false,
+        })
+      }
+
+      // ignore some chatty `mobx-state-tree` actions
+      const RX = /postProcessSnapshot|@APPLY_SNAPSHOT/
+
+      // hookup mobx-state-tree middleware
+      Tron.use(
+        mst({
+          filter: (event) => RX.test(event.name) === false,
+        }),
+      )
+
+      // connect to the app
+      Tron.connect()
+
+      // Register Custom Commands
+      Tron.onCustomCommand({
+        title: 'Reset Root Store',
+        description: 'Resets the MST store',
+        command: 'resetStore',
+        handler: () => {
+          console.tron.log('resetting store')
+          clear()
+        },
+      })
+
+      Tron.onCustomCommand({
+        title: 'Reset Navigation State',
+        description: 'Resets the navigation state',
+        command: 'resetNavigation',
+        handler: () => {
+          console.tron.log('resetting navigation state')
+          RootNavigation.resetRoot({ routes: [] })
+        },
+      })
+
+      Tron.onCustomCommand({
+        title: 'Go Back',
+        description: 'Goes back',
+        command: 'goBack',
+        handler: () => {
+          console.tron.log('Going back')
+          RootNavigation.goBack()
+        },
+      })
+
+      // clear if we should
+      if (this.config.clearOnLoad) {
+        Tron.clear()
+      }
+    }
+  }
+}
diff --git a/app_expo/services/reactotron/tron.ts b/app_expo/services/reactotron/tron.ts
new file mode 100644
index 0000000..6086e48
--- /dev/null
+++ b/app_expo/services/reactotron/tron.ts
@@ -0,0 +1,2 @@
+import Reactotron from 'reactotron-react-native'
+export const Tron = Reactotron
diff --git a/app_expo/services/reactotron/tron.web.ts b/app_expo/services/reactotron/tron.web.ts
new file mode 100644
index 0000000..a525c06
--- /dev/null
+++ b/app_expo/services/reactotron/tron.web.ts
@@ -0,0 +1,2 @@
+import Reactotron from 'reactotron-react-js'
+export const Tron = Reactotron