Add copy integration (#3241)

esphome/components/copy/switch/__init__.py

@@ -0,0 +1,38 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import switch
+from esphome.const import (
+    CONF_DEVICE_CLASS,
+    CONF_ENTITY_CATEGORY,
+    CONF_ICON,
+    CONF_ID,
+    CONF_SOURCE_ID,
+)
+from esphome.core.entity_helpers import inherit_property_from
+
+from .. import copy_ns
+
+CopySwitch = copy_ns.class_("CopySwitch", switch.Switch, cg.Component)
+
+
+CONFIG_SCHEMA = switch.SWITCH_SCHEMA.extend(
+    {
+        cv.GenerateID(): cv.declare_id(CopySwitch),
+        cv.Required(CONF_SOURCE_ID): cv.use_id(switch.Switch),
+    }
+).extend(cv.COMPONENT_SCHEMA)
+
+FINAL_VALIDATE_SCHEMA = cv.All(
+    inherit_property_from(CONF_ICON, CONF_SOURCE_ID),
+    inherit_property_from(CONF_ENTITY_CATEGORY, CONF_SOURCE_ID),
+    inherit_property_from(CONF_DEVICE_CLASS, CONF_SOURCE_ID),
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await switch.register_switch(var, config)
+    await cg.register_component(var, config)
+
+    source = await cg.get_variable(config[CONF_SOURCE_ID])
+    cg.add(var.set_source(source))

esphome/components/copy/switch/copy_switch.cpp

@@ -0,0 +1,26 @@
+#include "copy_switch.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace copy {
+
+static const char *const TAG = "copy.switch";
+
+void CopySwitch::setup() {
+  source_->add_on_state_callback([this](float value) { this->publish_state(value); });
+
+  this->publish_state(source_->state);
+}
+
+void CopySwitch::dump_config() { LOG_SWITCH("", "Copy Switch", this); }
+
+void CopySwitch::write_state(bool state) {
+  if (state) {
+    source_->turn_on();
+  } else {
+    source_->turn_off();
+  }
+}
+
+}  // namespace copy
+}  // namespace esphome

esphome/components/copy/switch/copy_switch.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/switch/switch.h"
+
+namespace esphome {
+namespace copy {
+
+class CopySwitch : public switch_::Switch, public Component {
+ public:
+  void set_source(switch_::Switch *source) { source_ = source; }
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::DATA; }
+
+ protected:
+  void write_state(bool state) override;
+
+  switch_::Switch *source_;
+};
+
+}  // namespace copy
+}  // namespace esphome