#pragma once

#include <cstdint>
#include <map>
#include <optional>
#include <string>
#include <utility>
#include <vector>

namespace secsgem::gem {

enum class ProcessProgramAck : uint8_t {
  Accept = 0,
  PermissionNotGranted = 1,
  LengthError = 2,
  MatrixOverflow = 3,
  PpidNotFound = 4,
  ModeUnsupported = 5,
  PerformanceError = 6,
};

class RecipeStore {
 public:
  void add(std::string ppid, std::string body) {
    by_ppid_.insert_or_assign(std::move(ppid), std::move(body));
  }
  std::optional<std::string> get(const std::string& ppid) const {
    auto it = by_ppid_.find(ppid);
    if (it == by_ppid_.end()) return std::nullopt;
    return it->second;
  }
  std::vector<std::string> list() const {
    std::vector<std::string> out;
    out.reserve(by_ppid_.size());
    for (const auto& [k, _] : by_ppid_) out.push_back(k);
    return out;
  }
  ProcessProgramAck remove(const std::string& ppid) {
    if (!by_ppid_.count(ppid)) return ProcessProgramAck::PpidNotFound;
    by_ppid_.erase(ppid);
    return ProcessProgramAck::Accept;
  }
  std::size_t size() const { return by_ppid_.size(); }

 private:
  std::map<std::string, std::string> by_ppid_;
};

}  // namespace secsgem::gem