babe_config_node.cpp

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#include "babe_config_node.hpp"

namespace kagome::consensus {

  BabeConfigNode::BabeConfigNode(
      const std::shared_ptr<const BabeConfigNode> &ancestor,
      primitives::BlockInfo block)
      : block(block), parent(ancestor) {
    BOOST_ASSERT(ancestor != nullptr);
  }

  std::shared_ptr<BabeConfigNode> BabeConfigNode::createAsRoot(
      primitives::BlockInfo block,
      std::shared_ptr<const primitives::BabeConfiguration> config) {
    auto fake_parent = std::make_shared<BabeConfigNode>();
    auto node = std::make_shared<BabeConfigNode>(fake_parent, block);
    node->epoch = std::numeric_limits<decltype(node->epoch)>::max();
    node->config = std::move(config);
    return node;
  }

  std::shared_ptr<BabeConfigNode> BabeConfigNode::makeDescendant(
      const primitives::BlockInfo &target_block,
      std::optional<EpochNumber> target_epoch_number) const {
    auto node =
        std::make_shared<BabeConfigNode>(shared_from_this(), target_block);
    node->epoch = target_epoch_number.value_or(epoch);
    node->epoch_changed = node->epoch != epoch;
    if (not node->epoch_changed) {
      node->config = config;
      node->next_config = next_config;
    } else {
      node->config = next_config.value_or(config);
      node->next_config.reset();
    }

    return node;
  }

}  // namespace kagome::consensus