/* Copyright 2017 - 2021 R. Thomas
 * Copyright 2017 - 2021 Quarkslab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef LIEF_PE_SECTION_H_
#define LIEF_PE_SECTION_H_
#include <iostream>
#include <vector>
#include <string>
#include <set>

#include "LIEF/visibility.h"
#include "LIEF/Abstract/Section.hpp"
#include "LIEF/PE/enums.hpp"

namespace LIEF {
namespace PE {

class Parser;
class Builder;
class Binary;
struct pe_section;

class LIEF_API Section : public LIEF::Section {

  friend class Parser;
  friend class Builder;
  friend class Binary;

  public:
  using LIEF::Section::name;

  Section(const pe_section* header);
  Section(void);
  Section(const std::vector<uint8_t>& data, const std::string& name = "", uint32_t characteristics = 0);
  Section(const std::string& name);

  Section& operator=(const Section&);
  Section(const Section&);
  virtual ~Section(void);

  //! @brief Return the size of the data in the section.
  uint32_t sizeof_raw_data(void) const;
  uint32_t virtual_size(void) const;

  // ============================
  // LIEF::Section implementation
  // ============================
  virtual std::vector<uint8_t> content(void) const override;

  //! Content of the section's padding
  inline const std::vector<uint8_t>& padding() const {
    return this->padding_;
  }

  uint32_t pointerto_raw_data(void) const;
  uint32_t pointerto_relocation(void) const;
  uint32_t pointerto_line_numbers(void) const;
  uint16_t numberof_relocations(void) const;
  uint16_t numberof_line_numbers(void) const;
  uint32_t characteristics(void) const;

  //! Return the **fullname** of the section including the trailing bytes
  inline const std::string& fullname() const {
    return this->name_;
  }

  bool                              is_type(PE_SECTION_TYPES type) const;
  const std::set<PE_SECTION_TYPES>& types(void) const;
  bool                              has_characteristic(SECTION_CHARACTERISTICS c) const;
  std::set<SECTION_CHARACTERISTICS> characteristics_list(void) const;
  void clear(uint8_t c);


  virtual void name(const std::string& name) override;
  virtual void content(const std::vector<uint8_t>& data) override;
  void virtual_size(uint32_t virtualSize);
  void pointerto_raw_data(uint32_t pointerToRawData);
  void pointerto_relocation(uint32_t pointerToRelocation);
  void pointerto_line_numbers(uint32_t pointerToLineNumbers);
  void numberof_relocations(uint16_t numberOfRelocations);
  void numberof_line_numbers(uint16_t numberOfLineNumbers);
  void sizeof_raw_data(uint32_t sizeOfRawData);
  void characteristics(uint32_t characteristics);
  void type(PE_SECTION_TYPES type);
  void add_type(PE_SECTION_TYPES type);
  void remove_type(PE_SECTION_TYPES type);
  void add_characteristic(SECTION_CHARACTERISTICS characteristic);
  void remove_characteristic(SECTION_CHARACTERISTICS characteristic);

  virtual void accept(Visitor& visitor) const override;

  bool operator==(const Section& rhs) const;
  bool operator!=(const Section& rhs) const;

  LIEF_API friend std::ostream& operator<<(std::ostream& os, const Section& section);

  private:
  std::vector<uint8_t>& content_ref(void);

  std::vector<uint8_t> content_;
  std::vector<uint8_t> padding_;
  uint32_t virtual_size_           = 0;
  uint32_t pointer_to_relocations_ = 0;
  uint32_t pointer_to_linenumbers_ = 0;
  uint16_t number_of_relocations_  = 0;
  uint16_t number_of_linenumbers_  = 0;
  uint32_t characteristics_        = 0;
  std::set<PE_SECTION_TYPES> types_ = {PE_SECTION_TYPES::UNKNOWN};
};

} // namespace PE
} // namespace LIEF
#endif /* _PE_SECTION_H_ */