implement property (base) logic

Signed-off-by: Folling <mail@folling.io>

include/ikarus/objects/properties/property.h

@@ -82,24 +82,24 @@ IKA_API struct IkarusPropertySource const * ikarus_property_get_source(IkarusPro
 /// \param property The property to visit.
 /// \pre \li Must not be null.
 /// \pre \li Must exist.
-/// \param toggle_property The function to call if the property is a toggle property. Skipped if null.
+/// \param toggle_property_visitor The function to call if the property is a toggle property. Skipped if null.
-/// \param number_property The function to call if the property is a number property. Skipped if null.
+/// \param number_property_visitor The function to call if the property is a number property. Skipped if null.
-/// \param text_property The function to call if the property is a text property. Skipped if null.
+/// \param text_property_visitor The function to call if the property is a text property. Skipped if null.
 /// \param data The data to pass to the functions.
 IKA_API void ikarus_property_visit(
     IkarusProperty * property,
-    void (*toggle_property)(struct IkarusToggleProperty *, void *),
+    void (*toggle_property_visitor)(struct IkarusToggleProperty *, void *),
-    void (*number_property)(struct IkarusNumberProperty *, void *),
+    void (*number_property_visitor)(struct IkarusNumberProperty *, void *),
-    void (*text_property)(struct IkarusTextProperty *, void *),
+    void (*text_property_visitor)(struct IkarusTextProperty *, void *),
     void * data
 );
 
 /// \see ikarus_property_visit
 IKA_API void ikarus_property_visit_const(
     IkarusProperty const * property,
-    void (*toggle_property)(struct IkarusToggleProperty const *, void *),
+    void (*toggle_property_visitor)(struct IkarusToggleProperty const *, void *),
-    void (*number_property)(struct IkarusNumberProperty const *, void *),
+    void (*number_property_visitor)(struct IkarusNumberProperty const *, void *),
-    void (*text_property)(struct IkarusTextProperty const *, void *),
+    void (*text_property_visitor)(struct IkarusTextProperty const *, void *),
     void * data
 );
 

src/objects/properties/property.cpp

@@ -4,13 +4,23 @@
 
 #include <ikarus/objects/properties/property_type.h>
 
+#include <objects/properties/property_source.hpp>
 #include <persistence/function_context.hpp>
 #include <persistence/project.hpp>
+#include <sys/stat.h>
 
 IkarusProperty::IkarusProperty(IkarusProject * project, IkarusId id, Data data):
     IkarusObject{project, id},
     _data{data} {}
 
+IkarusProperty::Data& IkarusProperty::get_data() {
+    return _data;
+}
+
+IkarusProperty::Data const& IkarusProperty::get_data() const {
+    return _data;
+}
+
 cppbase::Result<IkarusPropertyType, sqlitecpp::SingleQueryError> IkarusProperty::get_property_type(
     IkarusProject * project, IkarusId id
 ) {
@@ -18,7 +28,21 @@ cppbase::Result<IkarusPropertyType, sqlitecpp::SingleQueryError> IkarusProperty:
 
     LOG_VERBOSE("project={};property={}", project->get_path().c_str(), id);
 
-    VTRY(auto const type, project->get_db()->query_one<int>("SELECT `type` FROM `objects` WHERE `id` = ?", id));
+    auto * ctx = project->get_function_context();
+
+    VTRY(
+        auto const type,
+        project->get_db()
+            ->query_one<int>("SELECT `type` FROM `properties` WHERE `id` = ?", id)
+            .on_error([ctx](auto const& err) {
+                ctx->set_error(
+                    fmt::format("failed to fetch unboxed property type: {}", err),
+                    true,
+                    IkarusErrorInfo_Source_SubSystem,
+                    IkarusErrorInfo_Type_SubSystem_Database
+                );
+            })
+    );
 
     return cppbase::ok(static_cast<IkarusPropertyType>(type));
 }
@@ -53,5 +77,88 @@ IKA_API void ikarus_property_delete(IkarusProperty * property) {
 }
 
 IkarusPropertyType ikarus_property_get_type(IkarusProperty const * property) {
-    LOG_DEBUG("fetching property type");
+    LOG_VERBOSE("fetching property type");
+
+    return IkarusProperty::get_property_type(property->get_project(), property->get_id())
+        .unwrap_value_or(IkarusPropertyType_Toggle);
+}
+
+IkarusPropertySource const * ikarus_property_get_source(IkarusProperty const * property) {
+    LOG_VERBOSE("fetching property source");
+
+    LOG_VERBOSE("project={};property={}", property->get_project()->get_path().c_str(), property->get_id());
+
+    auto * ctx = property->get_project()->get_function_context();
+
+    VTRY(
+        auto const source,
+        property->get_project()
+            ->get_db()
+            ->query_one<int>("SELECT `source` FROM `properties` WHERE `id` = ?", property->get_id())
+            .on_error([ctx](auto const& err) {
+                ctx->set_error(
+                    fmt::format("failed to fetch property's source: {}", err),
+                    true,
+                    IkarusErrorInfo_Source_SubSystem,
+                    IkarusErrorInfo_Type_SubSystem_Database
+                );
+            })
+    );
+
+    switch (ikarus_id_get_object_type(source)) {
+    case IkarusObjectType_Blueprint: return new IkarusPropertySource{property->get_project()->get_blueprint(source)};
+    case IkarusObjectType_Entity: return new IkarusPropertySource{property->get_project()->get_entity(source)};
+    default: {
+        ctx->set_error(
+            fmt::format("PropertySource is neither blueprint nor entity"),
+            true,
+            IkarusErrorInfo_Source_LibIkarus,
+            IkarusErrorInfo_Type_LibIkarus_InvalidState
+        );
+
+        return nullptr;
+    }
+    }
+}
+
+void ikarus_property_visit(
+    IkarusProperty * property,
+    void (*toggle_property_visitor)(struct IkarusToggleProperty *, void *),
+    void (*number_property_visitor)(struct IkarusNumberProperty *, void *),
+    void (*text_property_visitor)(struct IkarusTextProperty *, void *),
+    void * data
+) {
+    std::visit(
+        cppbase::overloaded{
+            [toggle_property_visitor, data](IkarusToggleProperty * property) { toggle_property_visitor(property, data); },
+            [number_property_visitor, data](IkarusNumberProperty * property) { number_property_visitor(property, data); },
+            [text_property_visitor, data](IkarusTextProperty * property) { text_property_visitor(property, data); }
+        },
+        property->get_data()
+    );
+}
+
+void ikarus_property_visit_const(
+    IkarusProperty const * property,
+    void (*toggle_property_visitor)(struct IkarusToggleProperty const *, void *),
+    void (*number_property_visitor)(struct IkarusNumberProperty const *, void *),
+    void (*text_property_visitor)(struct IkarusTextProperty const *, void *),
+    void * data
+) {
+    std::visit(
+        cppbase::overloaded{
+            [toggle_property_visitor, data](IkarusToggleProperty const * property) { toggle_property_visitor(property, data); },
+            [number_property_visitor, data](IkarusNumberProperty const * property) { number_property_visitor(property, data); },
+            [text_property_visitor, data](IkarusTextProperty const * property) { text_property_visitor(property, data); }
+        },
+        property->get_data()
+    );
+}
+
+IkarusObject * ikarus_property_to_object(IkarusProperty * property) {
+    return static_cast<IkarusObject *>(property);
+}
+
+IkarusObject const * ikarus_property_to_object_const(IkarusProperty const * property) {
+    return static_cast<IkarusObject const *>(property);
 }

src/objects/properties/property.hpp

@@ -31,6 +31,10 @@ public:
 
     ~IkarusProperty() override = default;
 
+public:
+    [[nodiscard]] Data& get_data();
+    [[nodiscard]] Data const& get_data() const;
+
 private:
     Data _data;
 };