import BaseService from './BaseService.js';
import UserDashboard from '../models/community/user_dashboard.js';
import WidgetType from '../models/type/widget_type.js';

class DashboardService extends BaseService {
    /**
     * Liste aller möglichen (verfügbaren) Widget-Typen.
     * @returns {Promise<Array<{ id: number, label: string, endpoint: string, description: string|null, orderId: number }>>}
     */
    async getAvailableWidgets() {
        const rows = await WidgetType.findAll({
            order: [['orderId', 'ASC'], ['id', 'ASC']],
            attributes: ['id', 'label', 'endpoint', 'description', 'orderId']
        });
        return rows.map(r => ({
            id: r.id,
            label: r.label,
            endpoint: r.endpoint,
            description: r.description ?? null,
            orderId: r.orderId
        }));
    }

    /**
     * @param {string} hashedUserId
     * @returns {Promise<{ widgets: Array<{ id: string, title: string, endpoint: string }> }>}
     */
    async getConfig(hashedUserId) {
        const user = await this.getUserByHashedId(hashedUserId);
        const row = await UserDashboard.findOne({ where: { userId: user.id } });
        const config = row?.config ?? { widgets: [] };
        if (!Array.isArray(config.widgets)) config.widgets = [];
        return config;
    }

    /**
     * @param {string} hashedUserId
     * @param {{ widgets: Array<{ id: string, title: string, endpoint: string }> }} config
     */
    async setConfig(hashedUserId, config) {
        const user = await this.getUserByHashedId(hashedUserId);
        const widgets = Array.isArray(config?.widgets) ? config.widgets : [];
        const sanitized = widgets.map(w => ({
            id: String(w?.id ?? ''),
            title: String(w?.title ?? ''),
            endpoint: String(w?.endpoint ?? '')
        })).filter(w => w.id && (w.title || w.endpoint));
        const payload = { widgets: sanitized };
        const existing = await UserDashboard.findOne({ where: { userId: user.id } });
        if (existing) {
            await existing.update({ config: payload });
        } else {
            await UserDashboard.create({ userId: user.id, config: payload });
        }
        return { widgets: sanitized };
    }
}

export default new DashboardService();