// Nyash-side Python compiler (Phase 10.7 C2 - minimal)
// Orchestrates: Parser(JSON) -> IR(JSON) -> Nyash source (string)

static box PyCompiler {
  parseToJson() {
    // Use Nyash-only parser via PyRuntimeBox (no Rust build)
    local p
    p = new PythonParserNy()
    return p.parse("")
  }

  buildIRFromParse(json) {
    // Minimal: analyze Python source from env and build IR with a constant return when possible
    // Python snippet: parse code from os.getenv("NYASH_PY_CODE"), find first Return(Constant)
    local os, getenv, src, ast, parsef, walkf, first_ret
    local py = new PyRuntimeBox()
    os = py.import("os")
    getenv = os.getattr("getenv")
    src = getenv.call("NYASH_PY_CODE").toString()
    if (src == null || src == "") {
      return new StringBox("{\"module\":{\"functions\":[{\"name\":\"main\",\"return_value\":0}]}}")
    }

    ast = py.import("ast")
    parsef = ast.getattr("parse")
    local tree
    tree = parsef.call(src)

    // Walk via Python: extract first constant return value if present
    local res
    res = py.eval("next((n.value.value for n in __import__('ast').walk(__import__('ast').parse(__import__('os').getenv('NYASH_PY_CODE') or '')) if isinstance(n, __import__('ast').Return) and isinstance(n.value, __import__('ast').Constant)), None)")
    // If number -> return that number; if string -> quoted
    local val
    val = res.str()
    if (val.matches("^[0-9]+$")) {
      return new StringBox("{\"module\":{\"functions\":[{\"name\":\"main\",\"return_value\":" + val + "]}}")
    } else if (val.length() > 0) {
      return new StringBox("{\"module\":{\"functions\":[{\"name\":\"main\",\"return_value\":\"" + val + "\"}]}}")
    } else {
      return new StringBox("{\"module\":{\"functions\":[{\"name\":\"main\",\"return_value\":0}]}}")
    }
  }

  irToNyashSource(irJson) {
    // Build Nyash source from IR (minimal: assume IR has return_value embedded by PyIR.buildReturn)
    local src
    src = "static box Generated {\n  main() {\n    return 0\n  }\n}"
    // Future: parse irJson and extract return_value
    return new StringBox(src)
  }
}