<commit_before>package libcentrifugo

import (
	"errors"
	"regexp"
	"time"
)

// ChannelOptions represent channel specific configuration for namespace or project in a whole
type ChannelOptions struct {
	// Watch determines if message published into channel will be sent into admin channel
	Watch bool `json:"watch"`

	// Publish determines if client can publish messages into channel directly
	Publish bool `json:"publish"`

	// Anonymous determines is anonymous access (with empty user ID) allowed or not
	Anonymous bool `json:"anonymous"`

	// Presence turns on(off) presence information for channels
	Presence bool `json:"presence"`

	// HistorySize determines max amount of history messages for channel, 0 means no history for channel
	HistorySize int `mapstructure:"history_size" json:"history_size"`

	// HistoryLifetime determines time in seconds until expiration for history messages
	HistoryLifetime int `mapstructure:"history_lifetime" json:"history_lifetime"`

	// JoinLeave turns on(off) join/leave messages for channels
	JoinLeave bool `mapstructure:"join_leave" json:"join_leave"`
}

// NamespaceKey is a name of namespace unique for project.
type NamespaceKey string

// Namespace allows to create channels with different channel options within the Project
type Namespace struct {
	// Name is a unique namespace name.
	Name NamespaceKey `json:"name"`

	// ChannelOptions for namespace determine channel options for channels belonging to this namespace.
	ChannelOptions `mapstructure:",squash"`
}

// Config contains Application configuration options.
type Config struct {
	// Version is a version of node as string, in most cases this will
	// be Centrifugo server version.
	Version string

	// Name of this node - must be unique, used as human readable and
	// meaningful node identificator.
	Name string

	// Debug turns on application debug mode.
	Debug bool

	// WebPassword is an admin web interface password.
	WebPassword string
	// WebSecret is a secret to generate auth token for admin web interface.
	WebSecret string

	// ChannelPrefix is a string prefix before each channel.
	ChannelPrefix string
	// AdminChannel is channel name for admin messages.
	AdminChannel ChannelID
	// ControlChannel is a channel name for internal control messages between nodes.
	ControlChannel ChannelID
	// MaxChannelLength is a maximum length of channel name.
	MaxChannelLength int

	// PingInterval sets interval server will send ping messages to clients.
	PingInterval time.Duration

	// NodePingInterval is an interval how often node must send ping
	// control message.
	NodePingInterval time.Duration
	// NodeInfoCleanInterval is an interval in seconds, how often node must clean
	// information about other running nodes.
	NodeInfoCleanInterval time.Duration
	// NodeInfoMaxDelay is an interval in seconds – how many seconds node info
	// considered actual.
	NodeInfoMaxDelay time.Duration
	// NodeMetricsInterval detects interval node will use to aggregate metrics.
	NodeMetricsInterval time.Duration

	// PresencePingInterval is an interval how often connected clients
	// must update presence info.
	PresencePingInterval time.Duration
	// PresenceExpireInterval is an interval how long to consider
	// presence info valid after receiving presence ping.
	PresenceExpireInterval time.Duration

	// ExpiredConnectionCloseDelay is an interval given to client to
	// refresh its connection in the end of connection lifetime.
	ExpiredConnectionCloseDelay time.Duration

	// StaleConnectionCloseDelay
	StaleConnectionCloseDelay time.Duration

	// MessageSendTimeout is an interval how long time the node
	// may take to send a message to a client before disconnecting the client.
	MessageSendTimeout time.Duration

	// MaxClientQueueSize is a maximum size of client's message queue in bytes.
	// After this queue size exceeded Centrifugo closes client's connection.
	MaxClientQueueSize int<commit_msg>comment for StaleConnectionCloseDelay config option<commit_after>package libcentrifugo

import (
	"errors"
	"regexp"
	"time"
)

// ChannelOptions represent channel specific configuration for namespace or project in a whole
type ChannelOptions struct {
	// Watch determines if message published into channel will be sent into admin channel
	Watch bool `json:"watch"`

	// Publish determines if client can publish messages into channel directly
	Publish bool `json:"publish"`

	// Anonymous determines is anonymous access (with empty user ID) allowed or not
	Anonymous bool `json:"anonymous"`

	// Presence turns on(off) presence information for channels
	Presence bool `json:"presence"`

	// HistorySize determines max amount of history messages for channel, 0 means no history for channel
	HistorySize int `mapstructure:"history_size" json:"history_size"`

	// HistoryLifetime determines time in seconds until expiration for history messages
	HistoryLifetime int `mapstructure:"history_lifetime" json:"history_lifetime"`

	// JoinLeave turns on(off) join/leave messages for channels
	JoinLeave bool `mapstructure:"join_leave" json:"join_leave"`
}

// NamespaceKey is a name of namespace unique for project.
type NamespaceKey string

// Namespace allows to create channels with different channel options within the Project
type Namespace struct {
	// Name is a unique namespace name.
	Name NamespaceKey `json:"name"`

	// ChannelOptions for namespace determine channel options for channels belonging to this namespace.
	ChannelOptions `mapstructure:",squash"`
}

// Config contains Application configuration options.
type Config struct {
	// Version is a version of node as string, in most cases this will
	// be Centrifugo server version.
	Version string

	// Name of this node - must be unique, used as human readable and
	// meaningful node identificator.
	Name string

	// Debug turns on application debug mode.
	Debug bool

	// WebPassword is an admin web interface password.
	WebPassword string
	// WebSecret is a secret to generate auth token for admin web interface.
	WebSecret string

	// ChannelPrefix is a string prefix before each channel.
	ChannelPrefix string
	// AdminChannel is channel name for admin messages.
	AdminChannel ChannelID
	// ControlChannel is a channel name for internal control messages between nodes.
	ControlChannel ChannelID
	// MaxChannelLength is a maximum length of channel name.
	MaxChannelLength int

	// PingInterval sets interval server will send ping messages to clients.
	PingInterval time.Duration

	// NodePingInterval is an interval how often node must send ping
	// control message.
	NodePingInterval time.Duration
	// NodeInfoCleanInterval is an interval in seconds, how often node must clean
	// information about other running nodes.
	NodeInfoCleanInterval time.Duration
	// NodeInfoMaxDelay is an interval in seconds – how many seconds node info
	// considered actual.
	NodeInfoMaxDelay time.Duration
	// NodeMetricsInterval detects interval node will use to aggregate metrics.
	NodeMetricsInterval time.Duration

	// PresencePingInterval is an interval how often connected clients
	// must update presence info.
	PresencePingInterval time.Duration
	// PresenceExpireInterval is an interval how long to consider
	// presence info valid after receiving presence ping.
	PresenceExpireInterval time.Duration

	// ExpiredConnectionCloseDelay is an interval given to client to
	// refresh its connection in the end of connection lifetime.
	ExpiredConnectionCloseDelay time.Duration

	// StaleConnectionCloseDelay is an interval in seconds after which
	// connection will be closed if still not authenticated.
	StaleConnectionCloseDelay time.Duration

	// MessageSendTimeout is an interval how long time the node
	// may take to send a message to a client before disconnecting the client.
	MessageSendTimeout time.Duration

	// MaxClientQueueSize is a maximum size of client's message queue in bytes.
	// After this queue size exceeded Centrifugo closes client's connection.
	MaxClientQueueSize int
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