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/////////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2026- Equinor ASA
//
// ResInsight is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
// for more details.
//
/////////////////////////////////////////////////////////////////////////////////
#pragma once
#include <ctime>
#include <map>
#include <optional>
#include <string>
#include <vector>
//==================================================================================================
/// Production and injection network trees read from the SCHEDULE section of a deck. The standard
/// network is defined by GRUPTREE, the extended network by BRANPROP. Wells are attached as leaf
/// nodes from WELSPECS. Both trees can be redefined at any date, so the result is a list of tree
/// revisions per tree type, as the gruptree table of res2df.
//==================================================================================================
class RigGroupNetwork
{
public:
enum class TreeType
{
GRUPTREE,
BRANPROP
};
enum class EdgeKeyword
{
GRUPTREE,
BRANPROP,
WELSPECS
};
struct Edge
{
std::string child;
std::string parent; // Empty for the root node
EdgeKeyword keyword = EdgeKeyword::GRUPTREE;
// Node properties from GRUPNET or NODEPROP (TERMINAL_PRESSURE) and edge properties from BRANPROP
// (VFP_TABLE, ALQ)
std::map<std::string, double> properties;
bool isWell() const;
bool isRoot() const;
};
// A tree that applies from its date until the next revision. The date is seconds since epoch (UTC), the same
// representation as the summary time steps (RifSummaryReaderInterface::timeSteps), so they can be compared
// directly. Edges are listed with parents before their children.
struct TreeRevision
{
std::time_t date = 0;
std::vector<Edge> edges;
};
void addTree( TreeType treeType, const TreeRevision& tree );
bool hasTreeType( TreeType treeType ) const;
const std::vector<TreeRevision>& trees( TreeType treeType ) const;
std::vector<std::time_t> dates( TreeType treeType ) const;
// The last tree defined at or before the date. The first tree is used for dates before it.
const TreeRevision* treeAtDate( TreeType treeType, std::time_t date ) const;
bool isEmpty() const;
static std::string keywordText( EdgeKeyword keyword );
private:
std::map<TreeType, std::vector<TreeRevision>> m_trees;
};