package domain

import (
	"errors"
	"time"
)

// ErrPersonaNotFound is returned when an lms_personas row does not exist.
var ErrPersonaNotFound = errors.New("persona not found")

// LmsPersona is a coach / character profile stored in lms_personas and referenced by practice shells.
type LmsPersona struct {
	ID          int64   `json:"id"`
	Name        string  `json:"name"`
	Description *string `json:"description,omitempty"`
	// ProfilePicture is always serialized (null when not set); clients rely on stable keys in list payloads.
	ProfilePicture *string `json:"profile_picture"` // image URL (e.g. MinIO or HTTPS); JSON null when unset
	// Gender matches learner-style free text (nullable); always present in JSON for stable list payloads.
	Gender    *string    `json:"gender"`
	IsActive  bool       `json:"is_active"`
	CreatedAt time.Time  `json:"created_at"`
	UpdatedAt *time.Time `json:"updated_at,omitempty"`
}

type CreateLmsPersonaInput struct {
	Name           string  `json:"name" validate:"required"`
	Description    *string `json:"description,omitempty"`
	ProfilePicture *string `json:"profile_picture,omitempty"`
	Gender         *string `json:"gender,omitempty"`
	IsActive       *bool   `json:"is_active,omitempty"`
}

type UpdateLmsPersonaInput struct {
	Name           *string `json:"name,omitempty"`
	Description    *string `json:"description,omitempty"`
	ProfilePicture *string `json:"profile_picture,omitempty"`
	Gender         *string `json:"gender,omitempty"`
	IsActive       *bool   `json:"is_active,omitempty"`
}