/**
 * In-memory equivalent of what export-datasheets.js writes to
 * X:\For_Web\<SN>.TXT. Lets upload-to-api.js POST directly to Hoffman's API
 * from DB state without a filesystem intermediate.
 *
 * Returns a string (datasheet text) or null if the record cannot be rendered
 * (no specs for the model, no raw_data for VASLOG_ENG, etc.).
 */
const { loadAllSpecs, getSpecs } = require('../parsers/spec-reader');
const { generateExactDatasheet } = require('../templates/datasheet-exact');

let _specMap = null;
function specs() {
    if (_specMap === null) _specMap = loadAllSpecs();
    return _specMap;
}

function renderContent(record) {
    if (record.log_type === 'VASLOG_ENG') {
        return record.raw_data || null;
    }
    const modelSpecs = getSpecs(specs(), record.model_number);
    if (!modelSpecs) return null;
    return generateExactDatasheet(record, modelSpecs) || null;
}

module.exports = { renderContent };