internal

type Administrates struct {
	gorm.Model

	ChannelId uint `gorm:"primaryKey;channel_id"`

	// AdminId admin actor id.
	AdminId uint `gorm:"primaryKey;admin_id"`
	IsOwner bool `gorm:"type:boolean;is_owner"`
}

type Administrator interface {
	IsAdministrator() bool
	IsChannelOwner() bool
	AddAdministratorOwner() error
	AddAdministrator(addedID uint) error
	RemoveAdministrator(removedId uint) error
	GetAdministrators() ([]*Administrates, error)
	ExitAdministrator() error
	DeleteAdministrators() error
}

type Broadcast interface {
	Create() error
	GetBroadcasts() ([]*Broadcasts, error) // Get all broadcasts.
	Delete() error
}

type Broadcasts struct {
	gorm.Model

	ChannelId uint `gorm:"primaryKey;type:bigint;channel_id"`

	// ActorId in the AdminId Actor data table, which identifies the creator of the Broadcast.
	// Must be the administrator of the channel.
	AdminId uint   `gorm:"type:bigint;admin_id"`
	CID     string `gorm:"type:text;cid"`
}

type Channel interface {
	// CreateChannel is used to create a channel.
	CreateChannel() error

	// GetChannels is used to retrieve all channels for a creator.
	GetChannels() ([]*Channels, error)

	// DeleteChannel is used to delete a channel.
	DeleteChannel() error

	// DeleteChannels is used to delete all channels.
	DeleteChannels() error

	GetPrivateKeyByActorId() (*Channels, error)
}

type Channels struct {
	gorm.Model

	// ActorId Since the Actor of ActivityPub is to be used as the data source of the Channel,
	// the ActorId needs to be saved here.
	ActorId uint `gorm:"primaryKey;type:bigint;actor_id"`

	// CreatorId Store the creator's ActorID in Channel as the owner of the channel.
	CreatorId uint `gorm:"primaryKey;type:bigint;creator_id"`

	// The current Channel design differs from the account design in that there is no privacy in the Channel.
	// So the key will be generated by the server and stored in the database.
	// The public key will be saved in the Actor table when the actor is created
	// And the private key will be saved in the Channel.
	PrivateKey string `gorm:"private_key;type:text;private_key"`
}

type Subscribe interface {
	IsSubscriber() (bool, error)
	AddSubscriber(adminId uint) error
	GetSubscribers(adminId uint) ([]*Subscribes, error)
	RemoveSubscriber(adminId uint) error
	Subscription() error
	Unsubscribe() error
}

type Subscribes struct {
	gorm.Model

	ChannelId    uint `gorm:"primaryKey;channel_id"`
	SubscriberId uint `gorm:"primaryKey;subscriber_id"`
}