Function flattenExpression

supabase/functions/gee-analytics/index.ts:99–122

(nested: any)

// ── Expression helpers ───────────────────────────────────────────

function flattenExpression(nested: any): { values: Record<string, any>; result: string } {
  const values: Record<string, any> = {};
  let counter = 0;
  function flatten(node: any): string {
    if (node === null || node === undefined) {
      const k = `_${counter++}`; values[k] = { constantValue: null }; return k;
    }
    if (node.functionInvocationValue) {
      const fiv = node.functionInvocationValue;
      const flatArgs: Record<string, any> = {};
      for (const [argName, argVal] of Object.entries(fiv.arguments || {})) {
        flatArgs[argName] = { valueReference: flatten(argVal as any) };
      }
      const k = `_${counter++}`;
      values[k] = { functionInvocationValue: { functionName: fiv.functionName, arguments: flatArgs } };
      return k;
    }
    if ("constantValue" in node) {
      const k = `_${counter++}`; values[k] = { constantValue: node.constantValue }; return k;
    }
    const k = `_${counter++}`; values[k] = { constantValue: node }; return k;
  }
  return { values, result: flatten(nested) };
}

async function computeValue(token: string, projectId: string, expr: any): Promise<any> {
  const flat = flattenExpression(expr);