package domain

import "time"

// Program is the top-level container in the LMS hierarchy (e.g. tracks like Beginner / Intermediate / Advanced).
type Program struct {
	ID          int64            `json:"id"`
	Name        string           `json:"name"`
	Description *string          `json:"description,omitempty"`
	Category    string           `json:"category"`
	Thumbnail   *string          `json:"thumbnail,omitempty"`
	SortOrder   int              `json:"sort_order"`
	CreatedAt   time.Time        `json:"created_at"`
	UpdatedAt   *time.Time       `json:"updated_at,omitempty"`
	Access      *LMSEntityAccess `json:"access,omitempty"`
}

type CreateProgramInput struct {
	Name        string  `json:"name" validate:"required"`
	Description *string `json:"description,omitempty"`
	Category    string  `json:"category" validate:"required,oneof=LEARN_ENGLISH IELTS DUOLINGO"`
	Thumbnail   *string `json:"thumbnail,omitempty"`
	// SortOrder inserts at this global program order when set; omit to append after current max (sort_order uniqueness is enforced).
	SortOrder *int `json:"sort_order,omitempty" validate:"omitempty,min=0"`
}

type UpdateProgramInput struct {
	Name        *string `json:"name,omitempty"`
	Description *string `json:"description,omitempty"`
	Category    *string `json:"category,omitempty" validate:"omitempty,oneof=LEARN_ENGLISH IELTS DUOLINGO"`
	Thumbnail   *string `json:"thumbnail,omitempty"`
	SortOrder   *int    `json:"sort_order,omitempty"`
}