/**
 * UpdateBlogCommand
 * Blog módosítási command
 */
export class UpdateBlogCommand {
  constructor(id, data) {
    this.id = id;
    this.title = data.title;
    this.content = data.content;
    this.published = data.published;
  }

  validate() {
    const errors = [];
    
    if (!this.id) {
      errors.push('Blog ID is required');
    }
    
    if (this.title !== undefined && this.title.trim().length === 0) {
      errors.push('Title cannot be empty');
    }
    
    if (this.content !== undefined && this.content.trim().length === 0) {
      errors.push('Content cannot be empty');
    }
    
    return {
      isValid: errors.length === 0,
      errors
    };
  }
}