feat: add reading RLE files

1 files changed, 55 insertions, 0 deletions

diff --git a/src/util/io_impl.hpp b/src/util/io_impl.hpp
new file mode 100644
index 0000000..14f4ded
--- /dev/null
+++ b/src/util/io_impl.hpp
@@ -0,0 +1,55 @@
+#pragma once
+
+#include "io.hpp"
+
+#include "errors/io.hpp"
+
+#include <fstream>
+
+template <typename ContainerType>
+requires Container<ContainerType> && HasPushBack<ContainerType> &&
+	std::same_as<typename ContainerType::value_type, std::string>
+auto read_file_lines(const std::filesystem::path &path) -> ContainerType
+{
+	if (!std::filesystem::exists(path))
+	{
+		throw NoSuchFileOrDirectoryError(path);
+	}
+
+	const auto file_status = std::filesystem::status(path);
+
+	const auto file_type = file_status.type();
+
+	if (file_type != std::filesystem::file_type::regular)
+	{
+		throw WrongFileTypeError(path, std::filesystem::file_type::regular, file_type);
+	}
+
+	auto file = std::ifstream();
+
+	file.open(path);
+
+	if (!file.is_open())
+	{
+		throw FileNotOpenError(path);
+	}
+
+	auto content_lines = ContainerType();
+
+	while (file)
+	{
+		auto line = std::string();
+		std::getline(file, line);
+
+		std::erase(line, '\r');
+
+		content_lines.push_back(line);
+	}
+
+	if (!content_lines.empty() && content_lines.back().empty())
+	{
+		content_lines.pop_back();
+	}
+
+	return content_lines;
+}