#pragma once

#include <optional>
#include <string>
#include <vector>

namespace sedpp {

// A script can come from -e text or -f file text.  Keeping the source kind lets
// main.cpp reproduce GNU-style diagnostics before the compiler sees the script.
struct ScriptSpec {
  bool isFile = false;
  std::string value;
};

// Command-line options that affect both compilation and execution.  The parser
// keeps compatibility switches such as posix/strictPosix separate because some
// behavior is merely POSIX-flavored while other behavior must reject GNU syntax.
struct Options {
  bool quiet = false;
  bool extendedRegex = false;
  bool nullData = false;
  bool separate = false;
  bool sandbox = false;
  bool unbuffered = false;
  bool posix = false;
  bool strictPosix = false;
  bool debug = false;
  bool inPlace = false;
  bool followSymlinks = false;
  int lineLength = 0;
  std::string inPlaceSuffix;

  std::vector<std::string> scripts;
  std::vector<std::string> scriptFiles;
  std::vector<ScriptSpec> scriptSpecs;
  std::vector<std::string> inputFiles;
};

// immediateExit is set for --help/--version and for parse-time usage errors
// where sed should exit before compiling or reading input.
struct ParseResult {
  Options options;
  int immediateExit = -1;
};

class OptionParser {
public:
  [[nodiscard]] ParseResult parse(int argc, char **argv) const;

private:
  static void printHelp(bool includeEmail, bool toStdout);
  static void printVersion();
};

} // namespace sedpp