/**
 * @NApiVersion 2.1
 * @NScriptType UserEventScript
 */
define(['N/record', 'N/llm', 'N/log'], (record, llm, log) => {
    /**
     * Function to execute before a record is saved.
     *
     * @param {Object} scriptContext
     * @param {Record} scriptContext.newRecord
     */
    function beforeSubmit(scriptContext) {
        try {
            const rec = scriptContext.newRecord;

            if (rec.type === 'salesorder') {
                const memo = rec.getValue('memo'); // Retrieve the memo field

                if (memo) {
                    // Generate AI summary using the custom LLM setup
                    const llmResponse = llm.generateText({
                        prompt: `Summarize the following sales order memo: "${memo}"`,
                        modelParameters: {
                            maxTokens: 500,          // Limit the token count for summary
                            temperature: 0.7         // Set creativity level
                        }
                    });

                    const summary = llmResponse.text;

                    log.debug('LLM Summary Response', summary);

                    // Save the AI-generated summary in the custom field
                    rec.setValue({
                        fieldId: 'custbody_ai_summary_field', // Replace with the internal ID of your custom field
                        value: summary,
                    });
                }
            }
        } catch (error) {
            log.error({
                title: 'Error in beforeSubmit',
                details: error.message,
            });
        }
    }

    return {
        beforeSubmit,
    };
});