just some refactoring thoughts

src2/CMakeLists.txt

@@ -0,0 +1,11 @@
+set(SOURCES
+    component.cpp
+    collection.cpp
+)
+
+set(HEADERS
+    component.h
+    collection.h
+)
+
+target_sources(${PROJECT_NAME} PRIVATE ${SOURCES})

src2/collection.cpp

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+#include "collection.h"

src2/collection.h

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+#pragma once
+
+#include <string>
+#include <filesystem>
+#include <map>
+#include <set>
+#include <exception>
+
+class Collection {
+public:
+    class UnknownSource;
+    class DuplicateSource;
+    class DuplicatePath;
+
+    Collection();
+
+    unsigned int sourcesTotal() const;
+    unsigned int sourcesPending() const;
+    unsigned int sourcesError() const;
+    unsigned int sourcesSuccess() const;
+
+    bool hasSource(const std::string& source) const;
+    void addSource(const std::string& source);
+    void sourceError(const std::string& source);
+    void sourceSuccess(const std::string& source, const std::filesystem::path& path);
+
+private:
+    std::set<std::string> errorSources;
+    std::set<std::string> pendingSources;
+    std::map<std::string, std::filesystem::path> successSources;    //would be nice to have a bimap here
+};
+
+class Collection::UnknownSource : public std::exception {
+public:
+    UnknownSource(const std::string& source);
+
+    const char* what() const noexcept( true ) override;
+private:
+    std::string source;
+};
+
+class Collection::DuplicateSource : public std::exception {
+public:
+    DuplicateSource(const std::string& source);
+
+    const char* what() const noexcept( true ) override;
+private:
+    std::string source;
+};
+
+class Collection::DuplicatePath : public std::exception {
+public:
+    DuplicatePath(const std::string& source, const std::filesystem::path& path);
+
+    const char* what() const noexcept( true ) override;
+private:
+    std::string source;
+    std::filesystem::path path;
+};

src2/component.cpp

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+#include "component.h"

src2/component.h

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+#pragma once
+
+#include <string>
+#include <filesystem>
+
+#include "loggger.h"
+#include "collection.h"
+
+class Component {
+public:
+    enum State {
+        initial,
+        reading,
+        building,
+        ready
+    };
+
+    enum Type {
+        unknown,
+        file,
+        directory,
+        mason
+    };
+
+    Component(Logger* logger, Collection* collection);
+    virtual ~Component();
+
+    Type getType() const;
+    Type getState() const;
+
+    virtual void read(const std::filesystem::path& path) = 0;
+    virtual void build(const std::filesystem::path& destination, const std::string& target) = 0;
+
+protected:
+    State state;
+    Type type;
+    Logger* logger;
+    Collection* collection;
+    std::filesystem::path location;
+};