

#pragma once

#include <stdint.h>
#include <string.h>

#include <string>
#include <unordered_map>
#include <vector>

#include <unwindstack/Memory.h>

namespace unwindstack {

class MemoryFake : public Memory {
 public:
  MemoryFake() = default;
  virtual ~MemoryFake() = default;

  size_t Read(uint64_t addr, void* buffer, size_t size) override;

  void SetMemory(uint64_t addr, const void* memory, size_t length);

  void SetMemoryBlock(uint64_t addr, size_t length, uint8_t value);

  void SetData8(uint64_t addr, uint8_t value) { SetMemory(addr, &value, sizeof(value)); }

  void SetData16(uint64_t addr, uint16_t value) { SetMemory(addr, &value, sizeof(value)); }

  void SetData32(uint64_t addr, uint32_t value) { SetMemory(addr, &value, sizeof(value)); }

  void SetData64(uint64_t addr, uint64_t value) { SetMemory(addr, &value, sizeof(value)); }

  void SetMemory(uint64_t addr, std::vector<uint8_t> values) {
    SetMemory(addr, values.data(), values.size());
  }

  void SetMemory(uint64_t addr, std::string string) {
    SetMemory(addr, string.c_str(), string.size() + 1);
  }

  void ClearMemory(uint64_t addr, size_t length) {
    for (uint64_t i = 0; i < length; ++i) {
      data_.erase(addr + i);
    }
  }

  void Clear() override { data_.clear(); }

 private:
  std::unordered_map<uint64_t, uint8_t> data_;
};

class MemoryFakeAlwaysReadZero : public Memory {
 public:
  MemoryFakeAlwaysReadZero() = default;
  virtual ~MemoryFakeAlwaysReadZero() = default;

  size_t Read(uint64_t, void* buffer, size_t size) override {
    memset(buffer, 0, size);
    return size;
  }
};

}  // namespace unwindstack
