2 files changed, 32 insertions, 0 deletions
diff --git a/packages/airmx/src/message.ts b/packages/airmx/src/message.ts
index f9bcf13..d21dc44 100644
--- a/packages/airmx/src/message.ts
+++ b/packages/airmx/src/message.ts
@@ -1,3 +1,6 @@
+import type { InstantPushData } from './types.js'
+import { MessageSource } from './types.js'
+
 export class CommandMessage<T> {
   constructor(
     readonly commandId: number,
@@ -17,3 +20,27 @@ export class CommandMessage<T> {
     }
   }
 }
+
+const current = () => {
+  return Math.floor(new Date().getTime() / 1000)
+}
+
+export class InstantPushMessage extends CommandMessage<InstantPushData> {
+  static commandId() {
+    return 40
+  }
+
+  /**
+   * @param frequency - Report frequency in seconds.
+   * @param duration - Report duration in seconds.
+   */
+  static make(frequency: number, duration: number) {
+    const data = {
+      frequencyTime: frequency,
+      durationTime: duration
+    }
+    return new InstantPushMessage(
+      this.commandId(), 'instantPush', data, current(), MessageSource.App_Android
+    )
+  }
+}
diff --git a/packages/airmx/src/types.ts b/packages/airmx/src/types.ts
index 98a767a..5d1e01e 100644
--- a/packages/airmx/src/types.ts
+++ b/packages/airmx/src/types.ts
@@ -107,3 +107,8 @@ export interface EagleControlData {
   cadr: number
   denoise: 0 | 1
 }
+
+export interface InstantPushData {
+  frequencyTime: number
+  durationTime: number
+}