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#pragma once
#include <algorithm>
#include <obf/pass.hpp>
#include <vector>

namespace theo::obf {

/// <summary>
/// singleton obfuscation engine class. this class is responsible for keeping
/// track of the registered passes and the order in which to execute them.
/// </summary>
class engine_t {
  explicit engine_t(){};

 public:
  /// <summary>
  /// get the singleton object of this class.
  /// </summary>
  /// <returns>the singleton object of this class.</returns>
  static engine_t* get();

  /// <summary>
  /// add a pass to the engine. the order in which you call this function
  /// matters as the underlying data structure that contains the passes is a
  /// vector.
  /// </summary>
  /// <param name="pass">a pointer to the pass in which to add to the
  /// engine.</param>
  void add_pass(pass_t* pass);

  /// <summary>
  /// run all the passes on the symbol. this function will only run a pass if
  /// the symbol is the same type as the pass requires.
  /// </summary>
  /// <param name="sym">symbol to run all passes on.</param>
  void run(decomp::symbol_t* sym);

 private:
  std::vector<pass_t*> passes;
};
}  // namespace theo::obf