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esphome/esphome/components/api/user_services.h
2019-06-19 16:49:51 +01:00

126 lines
3.6 KiB
C++

#pragma once
#include "esphome/core/component.h"
#include "esphome/core/automation.h"
#include "api_message.h"
namespace esphome {
namespace api {
enum ServiceArgType {
SERVICE_ARG_TYPE_BOOL = 0,
SERVICE_ARG_TYPE_INT = 1,
SERVICE_ARG_TYPE_FLOAT = 2,
SERVICE_ARG_TYPE_STRING = 3,
};
class ServiceTypeArgument {
public:
ServiceTypeArgument(const std::string &name, ServiceArgType type);
const std::string &get_name() const;
ServiceArgType get_type() const;
protected:
std::string name_;
ServiceArgType type_;
};
class ExecuteServiceArgument : public APIMessage {
public:
APIMessageType message_type() const override;
template<typename T> T get_value();
bool decode_varint(uint32_t field_id, uint32_t value) override;
bool decode_length_delimited(uint32_t field_id, const uint8_t *value, size_t len) override;
bool decode_32bit(uint32_t field_id, uint32_t value) override;
protected:
bool value_bool_{false};
int value_int_{0};
float value_float_{0.0f};
std::string value_string_{};
};
class ExecuteServiceRequest : public APIMessage {
public:
bool decode_length_delimited(uint32_t field_id, const uint8_t *value, size_t len) override;
bool decode_32bit(uint32_t field_id, uint32_t value) override;
APIMessageType message_type() const override;
uint32_t get_key() const;
const std::vector<ExecuteServiceArgument> &get_args() const;
protected:
uint32_t key_;
std::vector<ExecuteServiceArgument> args_;
};
class UserServiceDescriptor {
public:
virtual void encode_list_service_response(APIBuffer &buffer) = 0;
virtual bool execute_service(const ExecuteServiceRequest &req) = 0;
};
template<typename... Ts> class UserService : public UserServiceDescriptor, public Trigger<Ts...> {
public:
UserService(const std::string &name, const std::array<ServiceTypeArgument, sizeof...(Ts)> &args);
void encode_list_service_response(APIBuffer &buffer) override;
bool execute_service(const ExecuteServiceRequest &req) override;
protected:
template<int... S> void execute_(std::vector<ExecuteServiceArgument> args, seq<S...>);
std::string name_;
uint32_t key_{0};
std::array<ServiceTypeArgument, sizeof...(Ts)> args_;
};
template<typename... Ts>
template<int... S>
void UserService<Ts...>::execute(std::vector<ExecuteServiceArgument> args, seq<S...>) {
this->trigger((args[S].get_value<Ts>())...);
}
template<typename... Ts> void UserService<Ts...>::encode_list_service_response(APIBuffer &buffer) {
// string name = 1;
buffer.encode_string(1, this->name_);
// fixed32 key = 2;
buffer.encode_fixed32(2, this->key_);
// repeated ListServicesArgument args = 3;
for (auto &arg : this->args_) {
auto nested = buffer.begin_nested(3);
// string name = 1;
buffer.encode_string(1, arg.get_name());
// Type type = 2;
buffer.encode_int32(2, arg.get_type());
buffer.end_nested(nested);
}
}
template<typename... Ts> bool UserService<Ts...>::execute_service(const ExecuteServiceRequest &req) {
if (req.get_key() != this->key_)
return false;
if (req.get_args().size() != this->args_.size()) {
return false;
}
this->execute_(req.get_args(), typename gens<sizeof...(Ts)>::type());
return true;
}
template<typename... Ts>
UserService<Ts...>::UserService(const std::string &name, const std::array<ServiceTypeArgument, sizeof...(Ts)> &args)
: name_(name), args_(args) {
this->key_ = fnv1_hash(this->name_);
}
template<> bool ExecuteServiceArgument::get_value<bool>();
template<> int ExecuteServiceArgument::get_value<int>();
template<> float ExecuteServiceArgument::get_value<float>();
template<> std::string ExecuteServiceArgument::get_value<std::string>();
} // namespace api
} // namespace esphome