app_status: Initial commit

components/app_status/README.md

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+This should simply return app status.
+
+```yaml
+# example configuration:
+
+binary_sensor:
+  - platform: app_status
+    name: App warning state
+    detect_status: warning
+
+  - platform: app_status
+    name: App error state
+    detect_status: error
+
+  - platform: app_status
+    name: App error or warning state
+    detect_status:
+      - warning
+      - error
+
+  - platform: app_status
+    name: App ok
+    detect_status:
+      - warning
+      - error
+    inverted: true
+```

components/app_status/app_status.cpp

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+#include "esphome/core/log.h"
+#include "app_status.h"
+
+namespace esphome {
+namespace app_status {
+
+static const char *TAG = "app_status.binary_sensor";
+
+void AppStatusBinarySensor::setup() {
+
+}
+
+void AppStatusBinarySensor::update() {
+  ESP_LOGV(TAG, "update() called; inverted = %s", TRUEFALSE(this->inverted_));
+  this->publish_state(this->inverted_);   // XXX
+}
+
+void AppStatusBinarySensor::dump_config() {
+  ESP_LOGCONFIG(TAG, "App status binary sensor");
+  ESP_LOGCONFIG(TAG, "  inverted = %s", TRUEFALSE(this->inverted_));
+}
+
+} // namespace app_status
+} // namespace esphome
+
+// vim:set sw=2:

components/app_status/app_status.h

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+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/component/binary_sensor/binary_sensor.h"
+
+namespace esphome {
+namespace app_status {
+
+class AppStatusBinarySensor : public binary_sensor_::BinarySensor, public PollingComponent {
+ public:
+  //void loop() override;
+  void setup() override;
+  void update() override;
+  void dump_config() override;
+
+  //float get_loop_priority() const override { return 50.0f; }
+
+  void set_inverted(bool value) { this->inverted = value; }
+
+ protected:
+  uint8_t last_app_state_(0xFF);
+  bool inverted_(false);
+};
+
+} // namespace app_status
+} // namespace esphome
+
+// vim:set sw=2:

components/app_status/binary_sensor.py

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+# dlitz 2025
+# Ref: https://github.com/esphome/starter-components/blob/main/components/empty_binary_sensor/binary_sensor.py
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import binary_sensor
+from esphome.const import CONF_ID
+
+from enum import IntEnum
+class DetectStatusEnum(IntEnum):
+    warning = 1
+    error = 2
+
+CONF_DETECT_STATUS = "detect_status"
+CONF_INVERTED = "inverted"
+
+app_status_ns = cg.esphome_ns.namespace("app_status")
+AppStatusBinarySensor = app_status_ns.class_("AppStatusBinarySensor", binary_sensor.BinarySensor, cg.PollingComponent)
+
+#CONFIG_SCHEMA = binary_sensor.binary_sensor_schema(AppStatusBinarySensor).extend({cv.GenerateID(): cv.declare_id(AppStatusBinarySensor)}).extend(cv.COMPONENT_SCHEMA)
+CONFIG_SCHEMA = binary_sensor.binary_sensor_schema(AppStatusBinarySensor).extend({
+    cv.GenerateID(): cv.declare_id(AppStatusBinarySensor),
+    #cv.Optional(CONF_DETECT_STATUS, default=["warning", "error"]): cv.ensure_list(cv.enum({e.name: e.value for e in DetectStatusEnum})),
+    cv.Optional(CONF_INVERTED, default=False): cv.boolean,
+}).extend(cv.COMPONENT_SCHEMA)
+
+async def to_code(config):
+    var = await binary_sensor.new_binary_sensor(config)
+    await cg.register_component(var, config)
+    cg.add(var.set_inverted(config[CONF_INVERTED]))