Add rule list to bridge, add documentation.

Jojo-1000 · Moritz Wirger
1 parent c6e6f5be
Showing 6 changed files with 211 additions and 8 deletions
include/hueplusplus/Bridge.h
include/hueplusplus/Condition.h
include/hueplusplus/Rule.h
include/hueplusplus/Schedule.h
src/Bridge.cpp
src/Rule.cpp
@@ -40,6 +40,7 @@
 #include "IHttpHandler.h"
 #include "Light.h"
 #include "ResourceList.h"
+#include "Rule.h"
 #include "Scene.h"
 #include "Schedule.h"
 #include "Sensor.h"
@@ -133,6 +134,7 @@ public:
     using GroupList = GroupResourceList<Group, CreateGroup>;
     using ScheduleList = CreateableResourceList<ResourceList<Schedule, int>, CreateSchedule>;
     using SceneList = CreateableResourceList<ResourceList<Scene, std::string>, CreateScene>;
+    using RuleList = CreateableResourceList<ResourceList<Rule, int>, CreateRule>;
 public:
     //! \brief Constructor of Bridge class
@@ -231,6 +233,11 @@ public:
     //! \note Does not refresh state.
     const SensorList& sensors() const;
+    //! \brief Provides access to the Rule%s on the bridge.
+    RuleList& rules();
+    //! \brief Provides access to the Rule%s on the bridge
+    //! \note Does not refresh state.
+    const RuleList& rules() const;
 private:
     //! \brief Function that sets the HttpHandler and updates the HueCommandAPI.
     //! \param handler a HttpHandler of type \ref IHttpHandler
@@ -256,6 +263,7 @@ private:
     detail::MakeCopyable<ScheduleList> scheduleList;
     detail::MakeCopyable<SceneList> sceneList;
     detail::MakeCopyable<SensorList> sensorList;
+    detail::MakeCopyable<RuleList> ruleList;
     detail::MakeCopyable<BridgeConfig> bridgeConfig;
 };
 } // namespace hueplusplus
 /**
-    \file ConditionHelper.h
+    \file Condition.h
     Copyright Notice\n
     Copyright (C) 2020  Jan Rogall          	- developer\n
@@ -28,7 +28,12 @@
 namespace hueplusplus
 {
-
+//! \brief Condition for a Rule
+//!
+//! The condition checks whether a resource attribute (usually a Sensor value) matches the
+//! specified Operator.
+//!
+//! Conditions from sensors can be created more easily using the makeCondition() helper functions.
 class Condition
 {
 public:
@@ -48,14 +53,26 @@ public:
 public:
     //! \brief Create a condition from any address on the bridge
+    //! \param address Path to an attribute of the bridge
+    //! \param op Operator used for comparison.
+    //! \param value String representation of the value to check against. Empty for some operators.
     Condition(const std::string& address, Operator op, const std::string& value);
+    //! \brief Get address on the bridge
     std::string getAddress() const;
+    //! \brief Get used operator
     Operator getOperator() const;
+    //! \brief Get value the attribute is checked against
     std::string getValue() const;
+    //! \brief Create the json form of the condition
+    //! \returns A json object with address, operator and value
     nlohmann::json toJson() const;
+    //! \brief Parse condition from json value
+    //! \param json Json object with address, operator and value
+    //! \returns The parsed condition with the same values
+    //! \throws HueException when the operator is unknown.
     static Condition parse(const nlohmann::json& json);
 private:
@@ -66,6 +83,9 @@ private:
 namespace detail
 {
+//! Helper class to make creating conditions more convenient.
+//! Specializations for each data type provide methods for the supported operators.
+//! This allows the user to write <code>makeCondition(sensor).eq(value)</code>
 template <typename T>
 class ConditionHelper
 { };
@@ -137,6 +157,7 @@ struct make_void
 {
     typedef void type;
 };
+//! c++17 void_t
 template <typename... Ts>
 using void_t = typename make_void<Ts...>::type;
@@ -33,6 +33,12 @@
 namespace hueplusplus
 {
+//! \brief Rule stored in the bridge.
+//!
+//! Rules are used to automatically trigger Action%s when certain events happen.
+//! The bridge can only support a limited number of rules, conditions and actions.
+//!
+//! They are deactivated if any errors occur when they are evaluated.
 class Rule
 {
 public:
@@ -55,8 +61,19 @@ public:
     int getId() const;
     //! \brief Get rule name
+    //!
+    //! The rule name is always unique for the bridge.
     std::string getName() const;
+    //! \brief Set rule name.
+    //! \param name New name for the rule.
+    //! Must be unique for all rules, otherwise a number is added.
+    //! \throws std::system_error when system or socket operations fail
+    //! \throws HueException when response contained no body
+    //! \throws HueAPIResponseException when response contains an error
+    //! \throws nlohmann::json::parse_error when response could not be parsed
+    void setName(const std::string& name);
+
     //! \brief Get created time
     time::AbsoluteTime getCreated() const;
@@ -68,18 +85,85 @@ public:
     //! \brief Get whether rule is enabled or disabled
     bool isEnabled() const;
+    //! \brief Enable or disable rule.
+    //! \param enabled whether the rule is triggered.
+    //! \throws std::system_error when system or socket operations fail
+    //! \throws HueException when response contained no body
+    //! \throws HueAPIResponseException when response contains an error
+    //! \throws nlohmann::json::parse_error when response could not be parsed
+    void setEnabled(bool enabled);
     //! \brief Get user that created or last changed the rule.
     std::string getOwner() const;
+    //! \brief Get the conditions that have to be met
+    //!
+    //! The rule triggers the actions when all conditions are true.
+    //! At least one condition must exist.
     std::vector<Condition> getConditions() const;
+    //! \brief Get the actions that are executed
+    //!
+    //! At least one action must exist.
     std::vector<Action> getActions() const;
+    //! \brief Set conditions for the rule
+    //! \param conditions All conditions that need to be fulfilled. Must not be empty.
+    //! \throws std::system_error when system or socket operations fail
+    //! \throws HueException when response contained no body
+    //! \throws HueAPIResponseException when response contains an error
+    //! \throws nlohmann::json::parse_error when response could not be parsed
+    void setConditions(const std::vector<Condition>& conditions);
+    //! \brief Set actions for the rule
+    //! \param actions The actions that are triggered when the conditions are met.
+    //! Must not be empty.
+    void setActions(const std::vector<Action>& actions);
+
+private:
+    //! \brief Utility function to send a put request to the group.
+    //!
+    //! \param request The request to send
+    //! \param fileInfo FileInfo from calling function for exception details.
+    //! \returns The parsed reply
+    //! \throws std::system_error when system or socket operations fail
+    //! \throws HueException when response contained no body
+    //! \throws HueAPIResponseException when response contains an error
+    //! \throws nlohmann::json::parse_error when response could not be parsed
+    nlohmann::json sendPutRequest(const nlohmann::json& request, FileInfo fileInfo);
+
 private:
     int id;
     APICache state;
 };
+//! \brief Parameters for creating a new Rule.
+//!
+//! Can be used like a builder object with chained calls.
+class CreateRule
+{
+public:
+    //! \brief Set name
+    //! \see Rule::setName
+    CreateRule& setName(const std::string& name);
+
+    //! \brief Set status
+    //! \see Rule::setEnabled
+    CreateRule& setStatus(bool enabled);
+
+    //! \brief Set conditions
+    //! \see Rule::setConditions
+    CreateRule& setConditions(const std::vector<Condition>& conditions);
+    //! \brief Set actions
+    //! \see Rule::setActions
+    CreateRule& setActions(const std::vector<Action>& actions);
+
+    //! \brief Get request to create the rule.
+    //! \returns JSON request for a POST to create the new rule.
+    nlohmann::json getRequest() const;
+
+private:
+    nlohmann::json request;
+};
+
 } // namespace hueplusplus
 #endif
@@ -106,7 +106,7 @@ public:
     //! \throws nlohmann::json::parse_error when response could not be parsed
     void setTime(const time::TimePattern& timePattern);
     //! \brief Enable or disable schedule
-    //! \param status Enabled or disabled
+    //! \param enabled true to enable, false to disable.
     //!
     //! Can be used to reset a timer by setting to disabled and enabled again.
     //! \throws std::system_error when system or socket operations fail
@@ -31,12 +31,11 @@
 #include <stdexcept>
 #include <thread>
-#include "hueplusplus/LibConfig.h"
 #include "hueplusplus/HueExceptionMacro.h"
+#include "hueplusplus/LibConfig.h"
 #include "hueplusplus/UPnP.h"
 #include "hueplusplus/Utils.h"
-
 namespace hueplusplus
 {
 BridgeFinder::BridgeFinder(std::shared_ptr<const IHttpHandler> handler) : http_handler(std::move(handler)) { }
@@ -56,7 +55,8 @@ std::vector&lt;BridgeFinder::BridgeIdentification&gt; BridgeFinder::FindBridges() cons
             size_t start = p.first.find("//") + 2;
             size_t length = p.first.find(":", start) - start;
             bridge.ip = p.first.substr(start, length);
-            try {
+            try
+            {
                 std::string desc
                     = http_handler->GETString("/description.xml", "application/xml", "", bridge.ip, bridge.port);
                 std::string mac = ParseDescription(desc);
@@ -66,7 +66,8 @@ std::vector&lt;BridgeFinder::BridgeIdentification&gt; BridgeFinder::FindBridges() cons
                     foundBridges.push_back(std::move(bridge));
                 }
             }
-            catch (const HueException&) {
+            catch (const HueException&)
+            {
                 // No body found in response, skip this device
             }
         }
@@ -152,6 +153,7 @@ Bridge::Bridge(const std::string&amp; ip, const int port, const std::string&amp; usernam
       scheduleList(stateCache, "schedules", refreshDuration),
       sceneList(stateCache, "scenes", refreshDuration),
       sensorList(stateCache, "sensors", refreshDuration),
+      ruleList(stateCache, "rules", refreshDuration),
       bridgeConfig(stateCache, refreshDuration)
 { }
@@ -288,6 +290,16 @@ const hueplusplus::SensorList&amp; Bridge::sensors() const
     return sensorList;
 }
+Bridge::RuleList& Bridge::rules()
+{
+    return ruleList;
+}
+
+const Bridge::RuleList& Bridge::rules() const
+{
+    return ruleList;
+}
+
 void Bridge::setHttpHandler(std::shared_ptr<const IHttpHandler> handler)
 {
     http_handler = handler;
@@ -122,7 +122,7 @@ Condition Condition::parse(const nlohmann::json&amp; json)
     }
     else
     {
-        throw HueException("Unknown condition operator: " + opStr, CURRENT_FILE_INFO);
+        throw HueException(CURRENT_FILE_INFO, "Unknown condition operator: " + opStr);
     }
     return Condition(address, op, value);
@@ -154,6 +154,13 @@ std::string Rule::getName() const
     return state.getValue().at("name").get<std::string>();
 }
+void Rule::setName(const std::string& name)
+{
+    nlohmann::json request = {{"name", name}};
+    sendPutRequest(request, CURRENT_FILE_INFO);
+    refresh(true);
+}
+
 time::AbsoluteTime Rule::getCreated() const
 {
     return time::AbsoluteTime::parseUTC(state.getValue().at("creationtime").get<std::string>());
@@ -174,6 +181,11 @@ bool Rule::isEnabled() const
     return state.getValue().at("status").get<std::string>() == "enabled";
 }
+void Rule::setEnabled(bool enabled)
+{
+    sendPutRequest({{"status", enabled ? "enabled" : "disabled"}}, CURRENT_FILE_INFO);
+}
+
 std::string Rule::getOwner() const
 {
     return state.getValue().at("owner").get<std::string>();
@@ -201,4 +213,70 @@ std::vector&lt;Action&gt; Rule::getActions() const
     return result;
 }
+void Rule::setConditions(const std::vector<Condition>& conditions)
+{
+    nlohmann::json json;
+    for (const Condition& c : conditions)
+    {
+        json.push_back(c.toJson());
+    }
+
+    sendPutRequest({{"conditions", json}}, CURRENT_FILE_INFO);
+}
+
+void Rule::setActions(const std::vector<Action>& actions)
+{
+    nlohmann::json json;
+    for (const Action& a : actions)
+    {
+        json.push_back(a.toJson());
+    }
+
+    sendPutRequest({{"actions", json}}, CURRENT_FILE_INFO);
+}
+
+nlohmann::json Rule::sendPutRequest(const nlohmann::json& request, FileInfo fileInfo)
+{
+    return state.getCommandAPI().PUTRequest("/groups/" + std::to_string(id), request, std::move(fileInfo));
+}
+
+CreateRule& CreateRule::setName(const std::string& name)
+{
+    request["name"] = name;
+    return *this;
+}
+
+CreateRule& CreateRule::setStatus(bool enabled)
+{
+    request["status"] = enabled ? "enabled" : "disabled";
+    return *this;
+}
+
+CreateRule& CreateRule::setConditions(const std::vector<Condition>& conditions)
+{
+    nlohmann::json conditionsJson;
+    for (const Condition& c : conditions)
+    {
+        conditionsJson.push_back(c.toJson());
+    }
+    request["conditions"] = conditionsJson;
+    return *this;
+}
+
+CreateRule& CreateRule::setActions(const std::vector<Action>& actions)
+{
+    nlohmann::json actionsJson;
+    for (const Action& a : actions)
+    {
+        actionsJson.push_back(a.toJson());
+    }
+    request["actions"] = actionsJson;
+    return *this;
+}
+
+nlohmann::json CreateRule::getRequest() const
+{
+    return request;
+}
+
 } // namespace hueplusplus
 \ No newline at end of file