refactor: use dependency injection

2 files changed, 54 insertions, 0 deletions

diff --git a/src/interfaces/argument_parser.hpp b/src/interfaces/argument_parser.hpp
new file mode 100644
index 0000000..222d9e0
--- /dev/null
+++ b/src/interfaces/argument_parser.hpp
@@ -0,0 +1,23 @@
+#pragma once
+
+#include "interfaces/randomization.hpp"
+
+#include <getopt.h>
+#include <memory>
+#include <string_view>
+#include <vector>
+
+struct ParsedArguments
+{
+	std::shared_ptr<IRandomNumberGenerator> random_gen = nullptr;
+};
+
+class IArgumentParser
+{
+public:
+	virtual ParsedArguments
+	parse(const std::vector<option> &options, const std::string_view &short_options,
+		  const int &argc,
+		  char *const *argv) = 0; // NOLINT(cppcoreguidelines-avoid-c-arrays,
+								  // modernize-avoid-c-arrays)
+};
diff --git a/src/interfaces/randomization.hpp b/src/interfaces/randomization.hpp
new file mode 100644
index 0000000..78456a2
--- /dev/null
+++ b/src/interfaces/randomization.hpp
@@ -0,0 +1,31 @@
+#pragma once
+
+#include <functional>
+#include <memory>
+
+class ISeedGenerator
+{
+public:
+	[[nodiscard]] virtual unsigned int random_seed() const = 0;
+};
+
+using ISeedGeneratorFactory = std::function<std::shared_ptr<ISeedGenerator>()>;
+
+/**
+ * Pseudo-random unsigned integer generator.
+ */
+class IRandomNumberGenerator
+{
+public:
+	/**
+	 * Returns a number in the range of a to b.
+	 *
+	 * @param a A number lower than b
+	 * @param b A number greater than a
+	 */
+	[[nodiscard]] virtual unsigned int in_range(const unsigned int &a,
+												const unsigned int &b) const = 0;
+};
+
+using IRandomNumberGeneratorFactory =
+	std::function<std::shared_ptr<IRandomNumberGenerator>(const unsigned int &seed)>;