/**
 * JSON import/export for Scenar Creator.
 */

function exportJson() {
    if (!window.currentDocument) {
        showStatus('No document to export', 'error');
        return;
    }
    const json = JSON.stringify(window.currentDocument, null, 2);
    const blob = new Blob([json], { type: 'application/json' });
    API.downloadBlob(blob, 'scenar_export.json');
}

function handleJsonImport(event) {
    const file = event.target.files[0];
    if (!file) return;

    const reader = new FileReader();
    reader.onload = function (e) {
        try {
            const doc = JSON.parse(e.target.result);
            if (!doc.event || !doc.blocks || !doc.program_types) {
                throw new Error('Invalid ScenarioDocument format');
            }
            window.currentDocument = doc;
            showImportedDocument(doc);
            showStatus('JSON imported successfully', 'success');
        } catch (err) {
            showStatus('JSON import error: ' + err.message, 'error');
        }
    };
    reader.readAsText(file);
}