/* Copyright 2017 R. Thomas
 * Copyright 2017 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_HEADER_H_
#define LIEF_PE_HEADER_H_
#include <array>
#include <set>
#include <functional>
#include <algorithm>
#include <iostream>

#include "LIEF/Object.hpp"
#include "LIEF/visibility.h"

#include "LIEF/PE/Structures.hpp"

namespace LIEF {
namespace PE {
class LIEF_API Header : public Object {
  public:
    using signature_t = std::array<uint8_t, sizeof(PE_Magic)>;
    Header(void);
    Header(const pe_header *header);
    virtual ~Header(void);

    Header& operator=(const Header&);
    Header(const Header&);

    const signature_t& signature(void) const;
    MACHINE_TYPES      machine(void) const;
    uint16_t           numberof_sections(void) const;
    uint32_t           time_date_stamp(void) const;
    uint32_t           pointerto_symbol_table(void) const;
    uint32_t           numberof_symbols(void) const;
    uint16_t           sizeof_optional_header(void) const;
    HEADER_CHARACTERISTICS           characteristics(void) const;

    bool has_characteristic(HEADER_CHARACTERISTICS c) const;
    std::set<HEADER_CHARACTERISTICS> characteristics_list(void) const;

    void machine(MACHINE_TYPES type);
    void numberof_sections(uint16_t nbOfSections);
    void time_date_stamp(uint32_t timestamp);
    void pointerto_symbol_table(uint32_t pointerToSymbol);
    void numberof_symbols(uint32_t nbOfSymbols);
    void sizeof_optional_header(uint16_t sizeOfOptionalHdr);
    void characteristics(HEADER_CHARACTERISTICS characteristics);
    void signature(const signature_t& sig);

    void add_characteristic(HEADER_CHARACTERISTICS c);
    void remove_characteristic(HEADER_CHARACTERISTICS c);

    virtual void accept(Visitor& visitor) const override;

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

    LIEF_API friend std::ostream& operator<<(std::ostream& os, const Header& entry);
  private:
    signature_t   signature_;
    MACHINE_TYPES machine_;
    uint16_t      numberOfSections_;
    uint32_t      timeDateStamp_;
    uint32_t      pointerToSymbolTable_;
    uint32_t      numberOfSymbols_;
    uint16_t      sizeOfOptionalHeader_;
    HEADER_CHARACTERISTICS characteristics_;

};
}
}

#endif