some more thoughts about config

src/settings.h

@@ -6,6 +6,11 @@
 #include <vector>
 #include <array>
 #include <algorithm>
+#include <iostream>
+#include <fstream>
+#include <functional>
+#include <cctype>
+#include <sstream>
 
 #include "loggable.h"
 
@@ -14,26 +19,53 @@ public:
     enum Action {
         convert,
         help,
-        printConfig,
+        config,
         _actionsSize
     };
 
+    enum Type {
+        mp3,
+        _typesSize
+    };
+
+    enum Option {
+        level,
+        type,
+        _optionsSize
+    };
+
     Settings(int argc, char **argv);
 
     std::string getInput() const;
     std::string getOutput() const;
+    std::string getConfigPath() const;
+    bool isConfigDefault() const;
     Loggable::Severity getLogLevel() const;
+    Type getType() const;
     Action getAction() const;
 
+    bool readConfigFile();
+    void readConfigLine(const std::string& line);
+    std::string defaultConfig() const;
+
+    static Action stringToAction(const std::string& source);
+    static Action stringToAction(const std::string_view& source);
+    static Type stringToType(const std::string& source);
+    static Option stringToOption(const std::string& source);
+
 private:
     void parseArguments();
 
     static std::string_view stripFlags(const std::string_view& option);
+    static void strip(std::string& line);
+    static void stripComment(std::string& line);
 
 private:
     std::vector<std::string_view> arguments;
     std::optional<Action> action;
+    std::optional<Type> outputType;
     std::optional<std::string> input;
     std::optional<std::string> output;
     std::optional<Loggable::Severity> logLevel;
+    std::optional<std::string> configPath;
 };