opcotech/elemo

package model

import (
    "errors"
    "time"

    "github.com/opcotech/elemo/internal/pkg/validate"
)

// Comment represents a comment on a resource.
type Comment struct {
    ID        ID         `json:"id" validate:"required"`
    Content   string     `json:"content" validate:"required,min=5,max=2000"`
    CreatedBy ID         `json:"created_by" validate:"required"`
    CreatedAt *time.Time `json:"created_at" validate:"omitempty"`
    UpdatedAt *time.Time `json:"updated_at" validate:"omitempty"`
}

func (c *Comment) Validate() error {
    if err := validate.Struct(c); err != nil {
        return errors.Join(ErrInvalidCommentDetails, err)
    }
    if err := c.ID.Validate(); err != nil {
        return errors.Join(ErrInvalidCommentDetails, err)
    }
    if err := c.CreatedBy.Validate(); err != nil {
        return errors.Join(ErrInvalidCommentDetails, err)
    }
    return nil
}

// NewComment creates a new Comment.
func NewComment(content string, createdBy ID) (*Comment, error) {
    comment := &Comment{
        ID:        MustNewNilID(ResourceTypeComment),
        Content:   content,
        CreatedBy: createdBy,
    }

    if err := comment.Validate(); err != nil {
        return nil, err
    }

    return comment, nil
}