vce/srcsa/code/view.ts

// view.ts

import type { Hotspot, SectionView, AttrID, SectionID} from "../types/all.ts";

// ============================================================================
// UTILITIES
// ============================================================================

/**
 * Obtener la vista por defecto de una lista de vistas
 */
export function getDefaultView(views: SectionView[]): SectionView | null {
    const defaultView = views.find(v => v.isDefault === true);
    return defaultView || views[0] || null;
}

/**
 * Filtrar vistas visibles según condiciones
 */
export function getVisibleViews(
    views: SectionView[],
    attributeValues: Record<AttrID, any>,
    evaluator: any
): SectionView[] {
    return views.filter(view => {
        if (view.visible === undefined || view.visible === true) {
            return true;
        }
        if (view.visible === false) {
            return false;
        }
        // Es JsonLogic, evaluar
        const data = { attributes: attributeValues };
        return evaluator.evaluate(view.visible, data);
    });
}

/**
 * Obtener hotspots visibles de una vista
 */
export function getVisibleHotspots(
    view: SectionView,
    attributeValues: Record<AttrID, any>,
    evaluator: any
): Hotspot[] {
    if (!view.hotspots) return [];

    return view.hotspots.filter(hotspot => {
        if (hotspot.visible === undefined || hotspot.visible === true) {
            return true;
        }
        if (hotspot.visible === false) {
            return false;
        }
        // Es JsonLogic, evaluar
        const data = { attributes: attributeValues };
        return evaluator.evaluate(hotspot.visible, data);
    });
}

/**
 * Generar URL de imagen para una vista específica
 */
export function generateViewImageUrl(
    view: SectionView,
    sectionId: SectionID,
    globalAttributes : Record<AttrID, any>,
    sectionAttributes: Record<AttrID, any>
): string {
    const config = view.visualConfig;

    if (!config.imageUrlTemplate) {
        return config.fallbackImage || '/images/fallback.jpg';
    }

    let url = config.imageUrlTemplate;

    // Reemplazar {basePath}
    if (config.basePath) {
        url = url.replace('{basePath}', config.basePath);
    }

    // Reemplazar {sectionId}
    url = url.replace('{sectionId}', sectionId.split(':')[1]);

    // Reemplazar {viewId}
    url = url.replace('{viewId}', view.id.split(':')[1]);

    // Reemplazar atributos globales
    config.globalAttributeDependencies?.forEach(attrId => {
        const attrName = attrId.split(':')[1];
        const value = globalAttributes[attrId];
        if (value !== undefined) {
            url = url.replace(`{global.${attrName}}`, String(value));
        }
    });

    // Reemplazar atributos de sección
    config.sectionAttributeDependencies?.forEach(attrId => {
        const attrName = attrId.split(':')[1];
        const value = sectionAttributes[attrId];
        if (value !== undefined) {
            url = url.replace(`{section.${attrName}}`, String(value));
        }
    });

    return url;
}