<?php
/**
 * Generates Python code for sandbox execution based on provided trigger code and row data.
 *
 * @param string $functionName The name of the Python function to generate.
 * @param string $pyCode       The Python code to embed within the generated function.
 * @param array  $row          The row data to pass to the generated function.
 *
 * @return string The complete Python code ready for sandbox execution.
 */
function generatePythonTriggerCode($functionName, $pyCode, $row) {
    $constants = getPythonConstantsDefinition();
    $supportFunctions = getPythonSupportFunctionsDefinition();
    $imports = "import json\nimport sys as _sys\nimport os\n\n_sys.path.insert(0, os.path.join(os.getcwd(), 'sys'))\nfrom db_runtime import sql, sql_read, sql_write, sql_read_and_hydrate, get_tbl_primary_key_col_name, run_process\n" . getPythonImports();

    $rowJson = json_encode($row, JSON_UNESCAPED_UNICODE);
    $rowJsonPyLiteral = json_encode($rowJson);
    $indentedCode = implode("\n", array_map(fn($line) => '    ' . $line, explode("\n", $pyCode)));

    $pythonCode = <<<PY
$imports
$constants
$supportFunctions
def $functionName(data, error):
$indentedCode

data = json.loads($rowJsonPyLiteral)
error = [None]
_ret = $functionName(data, error)
if _ret is False or error[0]:
    _sys.stderr.write("Error: " + str(error[0] or "") + "\\n")
    _sys.exit(1)
print(json.dumps(data))
PY;

    return $pythonCode;
}