#pragma once

#include "fesa/Core/Types.hpp"

#include <algorithm>
#include <vector>

namespace fesa {

struct SparsePatternEntry {
  EquationId row = 0;
  EquationId col = 0;
};

struct SparsePattern {
  EquationId equation_count = 0;
  std::vector<SparsePatternEntry> entries;

  SparseIndex nonzeroCount() const {
    return static_cast<SparseIndex>(entries.size());
  }

  bool contains(EquationId row, EquationId col) const {
    return std::any_of(entries.begin(), entries.end(), [&](const SparsePatternEntry& entry) {
      return entry.row == row && entry.col == col;
    });
  }
};

}  // namespace fesa