TypeHelpers.hpp

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// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2026 Caleb Buahin
//
// 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 OPENSWMM_ENGINE_TYPE_HELPERS_HPP
#define OPENSWMM_ENGINE_TYPE_HELPERS_HPP
 
#include "../data/NodeData.hpp"
#include "../data/LinkData.hpp"
#include "../../../include/openswmm/engine/openswmm_nodes.h"
#include "../../../include/openswmm/engine/openswmm_links.h"
 
namespace openswmm {
 
// ============================================================================
// Node type mapping
// ============================================================================
 
inline bool c_to_internal_node_type(int c_type, NodeType& out_type) noexcept {
    switch (c_type) {
        case SWMM_NODE_JUNCTION: out_type = NodeType::JUNCTION; return true;
        case SWMM_NODE_OUTFALL:  out_type = NodeType::OUTFALL;  return true;
        case SWMM_NODE_STORAGE:  out_type = NodeType::STORAGE;  return true;
        case SWMM_NODE_DIVIDER:  out_type = NodeType::DIVIDER;  return true;
        default: return false;
    }
}
 
inline int internal_to_c_node_type(NodeType type) noexcept {
    switch (type) {
        case NodeType::JUNCTION: return SWMM_NODE_JUNCTION;
        case NodeType::OUTFALL:  return SWMM_NODE_OUTFALL;
        case NodeType::DIVIDER:  return SWMM_NODE_DIVIDER;
        case NodeType::STORAGE:  return SWMM_NODE_STORAGE;
        default:                 return SWMM_NODE_JUNCTION;
    }
}
 
// ============================================================================
// Link type mapping (C API and internal values match, but wrap for symmetry)
// ============================================================================
 
inline bool c_to_internal_link_type(int c_type, LinkType& out_type) noexcept {
    switch (c_type) {
        case SWMM_LINK_CONDUIT: out_type = LinkType::CONDUIT; return true;
        case SWMM_LINK_PUMP:    out_type = LinkType::PUMP;    return true;
        case SWMM_LINK_ORIFICE: out_type = LinkType::ORIFICE; return true;
        case SWMM_LINK_WEIR:    out_type = LinkType::WEIR;    return true;
        case SWMM_LINK_OUTLET:  out_type = LinkType::OUTLET;  return true;
        default: return false;
    }
}
 
inline int internal_to_c_link_type(LinkType type) noexcept {
    switch (type) {
        case LinkType::CONDUIT: return SWMM_LINK_CONDUIT;
        case LinkType::PUMP:    return SWMM_LINK_PUMP;
        case LinkType::ORIFICE: return SWMM_LINK_ORIFICE;
        case LinkType::WEIR:    return SWMM_LINK_WEIR;
        case LinkType::OUTLET:  return SWMM_LINK_OUTLET;
        default:                return SWMM_LINK_CONDUIT;
    }
}
 
} // namespace openswmm
 
#endif /* OPENSWMM_ENGINE_TYPE_HELPERS_HPP */