web: Reorganize into frontend/backend

web/frontend/src/core/Operations/preprocessing.ts

@@ -0,0 +1,70 @@
+/*
+ * UnitCommitment.jl: Optimization Package for Security-Constrained Unit Commitment
+ * Copyright (C) 2020-2025, UChicago Argonne, LLC. All rights reserved.
+ * Released under the modified BSD license. See COPYING.md for more details.
+ */
+
+import { validate, ValidationError } from "../Data/validate";
+import { UnitCommitmentScenario } from "../Data/types";
+import { migrate } from "../Data/migrate";
+import {
+  getContingencyTransmissionLines,
+  rebuildContingencies,
+} from "./transmissionOps";
+
+export const preprocess = (
+  data: any,
+): [UnitCommitmentScenario | null, ValidationError | null] => {
+  // Make a copy of the original data
+  let result = JSON.parse(JSON.stringify(data));
+
+  // Run migration
+  migrate(result);
+
+  // Run JSON validation and assign default values
+  if (!validate(result)) {
+    console.error(validate.errors);
+    return [
+      null,
+      { message: "Invalid JSON file. See console for more details." },
+    ];
+  }
+
+  // Expand scalars into arrays
+  // @ts-ignore
+  const timeHorizon = result["Parameters"]["Time horizon (h)"];
+  // @ts-ignore
+  const timeStep = result["Parameters"]["Time step (min)"];
+  const T = (timeHorizon * 60) / timeStep;
+  for (const busName in result["Buses"]) {
+    // @ts-ignore
+    const busData = result["Buses"][busName];
+    const busLoad = busData["Load (MW)"];
+    if (typeof busLoad === "number") {
+      busData["Load (MW)"] = Array(T).fill(busLoad);
+    }
+  }
+
+  // Add optional fields
+  for (let field of [
+    "Buses",
+    "Generators",
+    "Storage units",
+    "Price-sensitive loads",
+    "Transmission lines",
+    "Reserves",
+    "Contingencies",
+  ]) {
+    if (!result[field]) {
+      result[field] = {};
+    }
+  }
+
+  const scenario = result as unknown as UnitCommitmentScenario;
+
+  // Rebuild contingencies
+  const contingencyLines = getContingencyTransmissionLines(scenario);
+  scenario["Contingencies"] = rebuildContingencies(contingencyLines);
+
+  return [scenario, null];
+};