/**
 * ============================================================================
 * SECTION VALIDATOR
 * ============================================================================
 */

import type { Section, AttrID } from '@/types';
import type { ValidationError } from '@/utils';

/**
 * Validar sección en runtime
 */
export function validateSection(section: Section): ValidationError[] {
    const errors: ValidationError[] = [];
    
    // Validar que imageUrlTemplate tiene placeholders válidos
    if (section.visualConfig.imageUrlTemplate) {
        const template = section.visualConfig.imageUrlTemplate;
        const placeholders = template.match(/\{[^}]+}/g) || [];
        
        placeholders.forEach(placeholder => {
            const cleanName = placeholder.slice(1, -1);  // Remove { }
            
            if (cleanName.startsWith('global.')) {
                const attrName = cleanName.replace('global.', '');
                const attrId = `at:${attrName}` as AttrID;
                
                if (!section.visualConfig.globalAttributeDependencies?.includes(attrId)) {
                    errors.push({
                        sectionId: section.id,
                        message: `Placeholder ${placeholder} not in globalAttributeDependencies`,
                        severity: 'error'
                    });
                }
            }
        });
    }
    
    return errors;
}