package domain

import "time"

// Lesson belongs to a Module.
type Lesson struct {
	ID          int64      `json:"id"`
	ModuleID    int64      `json:"module_id"`
	Title       string     `json:"title"`
	VideoURL    *string    `json:"video_url,omitempty"`
	Thumbnail   *string    `json:"thumbnail,omitempty"`
	Description *string    `json:"description,omitempty"`
	SortOrder   int        `json:"sort_order"`
	HasPractice bool       `json:"has_practice"`
	CreatedAt   time.Time  `json:"created_at"`
	UpdatedAt   *time.Time `json:"updated_at,omitempty"`
	Access      *LMSEntityAccess `json:"access,omitempty"`
}

type CreateLessonInput struct {
	Title       string  `json:"title" validate:"required"`
	VideoURL    *string `json:"video_url,omitempty"`
	Thumbnail   *string `json:"thumbnail,omitempty"`
	Description *string `json:"description,omitempty"`
	// SortOrder within the module when set; omit to append after current max within module_id.
	SortOrder *int `json:"sort_order,omitempty" validate:"omitempty,min=0"`
}

type UpdateLessonInput struct {
	Title       *string `json:"title,omitempty"`
	VideoURL    *string `json:"video_url,omitempty"`
	Thumbnail   *string `json:"thumbnail,omitempty"`
	Description *string `json:"description,omitempty"`
	SortOrder   *int    `json:"sort_order,omitempty"`
}