155 lines
3 KiB
Go
155 lines
3 KiB
Go
package client
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import (
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"errors"
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"sync"
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"time"
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)
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type Client struct {
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jsonClient *JsonClient
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extraGenerator ExtraGenerator
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catcher chan *Response
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listenerStore *listenerStore
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catchersStore *sync.Map
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updatesTimeout time.Duration
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catchTimeout time.Duration
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}
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type Option func(*Client)
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func WithExtraGenerator(extraGenerator ExtraGenerator) Option {
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return func(client *Client) {
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client.extraGenerator = extraGenerator
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}
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}
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func WithCatchTimeout(timeout time.Duration) Option {
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return func(client *Client) {
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client.catchTimeout = timeout
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}
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}
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func WithUpdatesTimeout(timeout time.Duration) Option {
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return func(client *Client) {
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client.updatesTimeout = timeout
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}
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}
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func WithProxy(req *AddProxyRequest) Option {
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return func(client *Client) {
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client.AddProxy(req)
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}
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}
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func WithLogVerbosity(req *SetLogVerbosityLevelRequest) Option {
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return func(client *Client) {
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client.SetLogVerbosityLevel(req)
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}
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}
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func NewClient(authorizationStateHandler AuthorizationStateHandler, options ...Option) (*Client, error) {
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catchersListener := make(chan *Response, 1000)
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client := &Client{
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jsonClient: NewJsonClient(),
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catcher: catchersListener,
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listenerStore: newListenerStore(),
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catchersStore: &sync.Map{},
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}
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client.extraGenerator = UuidV4Generator()
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client.catchTimeout = 60 * time.Second
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client.updatesTimeout = 60 * time.Second
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for _, option := range options {
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option(client)
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}
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go client.receive()
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go client.catch(catchersListener)
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err := Authorize(client, authorizationStateHandler)
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if err != nil {
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return nil, err
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}
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return client, nil
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}
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func (client *Client) receive() {
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for {
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resp, err := client.jsonClient.Receive(client.updatesTimeout)
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if err != nil {
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continue
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}
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client.catcher <- resp
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typ, err := UnmarshalType(resp.Data)
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if err != nil {
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continue
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}
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needGc := false
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for _, listener := range client.listenerStore.Listeners() {
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if listener.IsActive() {
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listener.Updates <- typ
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} else {
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needGc = true
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}
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}
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if needGc {
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client.listenerStore.gc()
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}
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}
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}
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func (client *Client) catch(updates chan *Response) {
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for update := range updates {
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if update.Extra != "" {
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value, ok := client.catchersStore.Load(update.Extra)
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if ok {
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value.(chan *Response) <- update
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}
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}
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}
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}
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func (client *Client) Send(req Request) (*Response, error) {
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req.Extra = client.extraGenerator()
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catcher := make(chan *Response, 1)
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client.catchersStore.Store(req.Extra, catcher)
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defer func() {
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close(catcher)
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client.catchersStore.Delete(req.Extra)
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}()
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client.jsonClient.Send(req)
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select {
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case response := <-catcher:
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return response, nil
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case <-time.After(client.catchTimeout):
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return nil, errors.New("response catching timeout")
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}
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}
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func (client *Client) GetListener() *Listener {
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listener := &Listener{
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isActive: true,
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Updates: make(chan Type, 1000),
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}
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client.listenerStore.Add(listener)
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return listener
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}
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func (client *Client) Stop() {
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client.Destroy()
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client.jsonClient.Destroy()
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}
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