Add Number entities (from Home Assistant) (#1971)

Co-authored-by: Oxan van Leeuwen <oxan@oxanvanleeuwen.nl>

esphome/components/number/automation.h

@@ -0,0 +1,76 @@
+#pragma once
+
+#include "esphome/components/number/number.h"
+#include "esphome/core/automation.h"
+#include "esphome/core/component.h"
+
+namespace esphome {
+namespace number {
+
+class NumberStateTrigger : public Trigger<float> {
+ public:
+  explicit NumberStateTrigger(Number *parent) {
+    parent->add_on_state_callback([this](float value) { this->trigger(value); });
+  }
+};
+
+template<typename... Ts> class NumberSetAction : public Action<Ts...> {
+ public:
+  NumberSetAction(Number *number) : number_(number) {}
+  TEMPLATABLE_VALUE(float, value)
+
+  void play(Ts... x) override {
+    auto call = this->number_->make_call();
+    call.set_value(this->value_.value(x...));
+    call.perform();
+  }
+
+ protected:
+  Number *number_;
+};
+
+class ValueRangeTrigger : public Trigger<float>, public Component {
+ public:
+  explicit ValueRangeTrigger(Number *parent) : parent_(parent) {}
+
+  template<typename V> void set_min(V min) { this->min_ = min; }
+  template<typename V> void set_max(V max) { this->max_ = max; }
+
+  void setup() override;
+  float get_setup_priority() const override;
+
+ protected:
+  void on_state_(float state);
+
+  Number *parent_;
+  ESPPreferenceObject rtc_;
+  bool previous_in_range_{false};
+  TemplatableValue<float, float> min_{NAN};
+  TemplatableValue<float, float> max_{NAN};
+};
+
+template<typename... Ts> class NumberInRangeCondition : public Condition<Ts...> {
+ public:
+  NumberInRangeCondition(Number *parent) : parent_(parent) {}
+
+  void set_min(float min) { this->min_ = min; }
+  void set_max(float max) { this->max_ = max; }
+  bool check(Ts... x) override {
+    const float state = this->parent_->state;
+    if (isnan(this->min_)) {
+      return state <= this->max_;
+    } else if (isnan(this->max_)) {
+      return state >= this->min_;
+    } else {
+      return this->min_ <= state && state <= this->max_;
+    }
+  }
+
+ protected:
+  Number *parent_;
+  float min_{NAN};
+  float max_{NAN};
+};
+
+}  // namespace number
+}  // namespace esphome