Prepare stub for SCS solver interface

1 files changed, 34 insertions, 0 deletions

diff --git a/sumofsquares/solver/scs.py b/sumofsquares/solver/scs.py
new file mode 100644
index 0000000..95629be
--- /dev/null
+++ b/sumofsquares/solver/scs.py
@@ -0,0 +1,34 @@
+""" 
+Solve sumofsquares problems using SCS
+"""
+from __future__ import annotations
+
+import sys
+import scs
+
+from collections import UserDict
+
+import polymatrix as poly
+
+from ..abc import Problem, SolverInfo
+from ..variable import OptVariable
+
+
+class SCSInfo(SolverInfo, UserDict):
+    """ Dictionary returned by SCS. """
+
+    def __getattr__(self, attr):
+        key = " ".join(attr.split("_"))
+        if key not in self.keys():
+            raise KeyError(f"Key {key} was not found")
+        return self[key]
+
+
+def solve_sos_cone(prob: Problem, verbose: bool = False,
+                   *args, **kwargs) -> tuple[dict[OptVariable, float], SCSInfo]:
+    r"""
+    Solve a conic problem in the cone of SOS polynomials
+    :math:`\mathbf{\Sigma}_d(x)` using SCS.
+    """
+
+    raise NotImplementedError