#include <iostream>
#include "uCalc.h"

using namespace std;
using namespace uCalcSoftware;

int main() {
   uCalc uc;
   {
      uCalc::Transformer t(uc);
      t.Owned(); // Causes t to be released when it goes out of scope
      // 1. Define state variable in the uCalc instance.
      uc.DefineVariable("indent = 0");

      // 2. Define the transformation rules.
      // Note: '{', '}', '[', ']' are escaped with quotes to be treated as literals.

      // Rule for '{' and '[': Add newline, increment indent, add indent string.
      t.FromTo("{ '{' | '[' }", "{@Self}{@nl}{@Exec: indent++}{@Eval: '  ' * indent}");

      // Rule for '}' and ']': Add newline, decrement indent, add indent string.
      t.FromTo("{ '}' | ']' }", "{@nl}{@Exec: indent--}{@Eval: '  ' * indent}{@Self}");

      // Rule for ',': Add newline and current indent string.
      t.FromTo(",", ",{@nl}{@Eval: '  ' * indent}");

      // Rule for ':': Add a space after it for readability.
      t.FromTo(":", ": ");

      // 3. Define the minified input string.
      auto minifiedJson = R"({"id":123,"name":"Example","tags":["A","B"],"active":true})";

      // 4. Run the transformation and print the result.
      cout << t.Transform(minifiedJson) << endl;
   }
}