import _ from 'lodash';
import { Config, isListDataModel, loadConfigWithModelsPresetsAndValidate } from '@stackbit/sdk';

export function fetchAndConvertSchema(options: { dirPath: string }): Promise<{ schema: Config; errors: Error[] }> {
    return loadConfigWithModelsPresetsAndValidate({ dirPath: options.dirPath }).then(({ config, errors }) => {
        if (!config) {
            return { schema: {} as Config, errors };
        }
        wrapListDataModels(config);
        const schema = _.pick(config, [
            'stackbitVersion',
            'ssgName',
            'ssgVersion',
            'nodeVersion',
            'devCommand',
            'cmsName',
            'import',
            'publishDir',
            'staticDir',
            'uploadDir',
            'assets',
            'dataDir',
            'pagesDir',
            'pageLayoutKey',
            'objectTypeKey',
            'excludePages',
            'logicFields',
            'contentModels',
            'presetSource',
            'modelsSource',
            'models',
            'presets',
            'dirPath',
            'filePath',
            'sidebarButtons'
        ]);
        return { schema, errors };
    });
}

function wrapListDataModels(config: Config) {
    _.forEach(config.models, (model) => {
        if (!isListDataModel(model)) {
            return;
        }
        _.set(model, 'fields', [
            {
                type: 'list',
                name: 'items',
                items: model.items
            }
        ]);
        _.unset(model, 'items');
    });
}