package entity

import "time"

const (
	SettingMemberPreviewSeconds = "member_preview_seconds"
	DefaultPreviewSeconds       = 30

	MaxCoverBytes      = 5 << 20  // 5 MiB
	MaxBackgroundBytes = 5 << 20  // 5 MiB
	MaxAudioBytes      = 50 << 20 // 50 MiB
)

// Track is one curated music item for the Spark music list.
type Track struct {
	ID            int64     `json:"id"`
	Title         string    `json:"title"`
	CoverKey      string    `json:"coverKey"`
	AudioKey      string    `json:"audioKey"`
	BackgroundKey string    `json:"backgroundKey"`
	CoverURL      string    `json:"coverUrl"`
	AudioURL      string    `json:"audioUrl"`
	BackgroundURL string    `json:"backgroundUrl"`
	RequireMember bool      `json:"requireMember"`
	SortOrder     int       `json:"sortOrder"`
	Enabled       bool      `json:"enabled"`
	CategoryIDs   []int64   `json:"categoryIds"`
	CreatedAt     time.Time `json:"createdAt"`
	UpdatedAt     time.Time `json:"updatedAt"`
}

// Category is a top-level or sub music category (parentID nil = 总分类).
type Category struct {
	ID        int64      `json:"id"`
	ParentID  *int64     `json:"parentId"`
	Name      string     `json:"name"`
	SortOrder int        `json:"sortOrder"`
	Enabled   bool       `json:"enabled"`
	Children  []Category `json:"children,omitempty"`
	CreatedAt time.Time  `json:"createdAt"`
	UpdatedAt time.Time  `json:"updatedAt"`
}

// Settings is the global music ops config.
type Settings struct {
	MemberPreviewSeconds int `json:"memberPreviewSeconds"`
}

// Playlist is the client-facing payload.
type Playlist struct {
	Items                []Track    `json:"items"`
	Categories           []Category `json:"categories"`
	MemberPreviewSeconds int        `json:"memberPreviewSeconds"`
}