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70 lines
2.0 KiB
C++
70 lines
2.0 KiB
C++
#pragma once
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#include <bitset>
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#include <cstdlib>
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#include "esphome/core/automation.h"
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#include "esphome/core/component.h"
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#include "esphome/core/helpers.h"
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#include "esphome/core/time.h"
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namespace esphome {
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namespace time {
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/// The RealTimeClock class exposes common timekeeping functions via the device's local real-time clock.
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///
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/// \note
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/// The C library (newlib) available on ESPs only supports TZ strings that specify an offset and DST info;
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/// you cannot specify zone names or paths to zoneinfo files.
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/// \see https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
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class RealTimeClock : public PollingComponent {
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public:
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explicit RealTimeClock();
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#ifdef USE_TIME_TIMEZONE
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/// Set the time zone.
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void set_timezone(const std::string &tz) {
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this->timezone_ = tz;
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this->apply_timezone_();
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}
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/// Get the time zone currently in use.
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std::string get_timezone() { return this->timezone_; }
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#endif
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/// Get the time in the currently defined timezone.
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ESPTime now() { return ESPTime::from_epoch_local(this->timestamp_now()); }
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/// Get the time without any time zone or DST corrections.
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ESPTime utcnow() { return ESPTime::from_epoch_utc(this->timestamp_now()); }
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/// Get the current time as the UTC epoch since January 1st 1970.
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time_t timestamp_now() { return ::time(nullptr); }
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void add_on_time_sync_callback(std::function<void()> &&callback) {
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this->time_sync_callback_.add(std::move(callback));
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};
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protected:
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/// Report a unix epoch as current time.
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void synchronize_epoch_(uint32_t epoch);
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#ifdef USE_TIME_TIMEZONE
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std::string timezone_{};
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void apply_timezone_();
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#endif
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CallbackManager<void()> time_sync_callback_;
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};
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template<typename... Ts> class TimeHasTimeCondition : public Condition<Ts...> {
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public:
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TimeHasTimeCondition(RealTimeClock *parent) : parent_(parent) {}
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bool check(Ts... x) override { return this->parent_->now().is_valid(); }
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protected:
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RealTimeClock *parent_;
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};
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} // namespace time
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} // namespace esphome
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