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Migrated api package into events package

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This commit is contained in:
tyler 2024-04-10 15:19:00 -04:00
parent 419e67ff21
commit 79031a1978
7 changed files with 572 additions and 337 deletions
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16
NOTES.md
View file

@ -1,16 +1,18 @@
# Doing
Next steps:
- delete page needs to handle new architecture
- activatePage: verify defer page.activeMu.Unlock does not conflict with display function
On API errors
- include backoff multiple, if exceeded then stop API
Add option to delete API key for accounts?
First sign in screen: use different function than Login used by dashboard page?
- Dashboard login function emits events that first sign in screen may not need
Add better styles/icon to account details menu
Loading screen replaces signin at /
SignIn moves to /signin
Check for accounts, if accounts -> dashboard, else -> signin
Also check for new updates and tell user
Start screen:
- check for new updates and tell user
Trigger on event from API vs. trigger on event from chat
- Chat bot trigger on follow requires API key

365
v1/app.go
View file

@ -10,8 +10,8 @@ import (
"sync"
"time"
"github.com/tylertravisty/rum-goggles/v1/internal/api"
"github.com/tylertravisty/rum-goggles/v1/internal/config"
"github.com/tylertravisty/rum-goggles/v1/internal/events"
"github.com/tylertravisty/rum-goggles/v1/internal/models"
rumblelivestreamlib "github.com/tylertravisty/rumble-livestream-lib-go"
"github.com/wailsapp/wails/v2/pkg/runtime"
@ -24,30 +24,53 @@ const (
ChannelType = "Channel"
)
type ApiState struct {
active bool
activeMu sync.Mutex
resp *rumblelivestreamlib.LivestreamResponse
respMu sync.Mutex
}
type Page struct {
active bool
activeMu sync.Mutex
apiSt *ApiState
displaying bool
displayingMu sync.Mutex
name string
}
// App struct
type App struct {
api *api.Api
clients map[string]*rumblelivestreamlib.Client
clientsMu sync.Mutex
ctx context.Context
services *models.Services
logError *log.Logger
logFile *os.File
logFileMu sync.Mutex
logInfo *log.Logger
//apiS *ApiService
cancelCtrl context.CancelFunc
clients map[string]*rumblelivestreamlib.Client
clientsMu sync.Mutex
displaying string
displayingMu sync.Mutex
logError *log.Logger
logFile *os.File
logFileMu sync.Mutex
logInfo *log.Logger
pages map[string]*Page
pagesMu sync.Mutex
producers *events.Producers
services *models.Services
wails context.Context
}
// NewApp creates a new App application struct
func NewApp() *App {
app := &App{
clients: map[string]*rumblelivestreamlib.Client{},
pages: map[string]*Page{},
}
err := app.log()
if err != nil {
log.Fatal("error initializing log: ", err)
}
app.api = api.NewApi(app.logError, app.logInfo)
//app.apiS = NewApiService(app.logError, app.logInfo)
return app
}
@ -69,19 +92,88 @@ func (a *App) log() error {
// startup is called when the app starts. The context is saved
// so we can call the runtime methods
func (a *App) startup(ctx context.Context) {
a.ctx = ctx
a.api.Startup(ctx)
func (a *App) startup(wails context.Context) {
a.wails = wails
//a.apiS.Startup(a.apiS.ch)
// ctx, cancel := context.WithCancel(context.Background())
// a.cancelCtrl = cancel
// go a.handle(ctx)
}
func (a *App) handle(ctx context.Context) {
for {
select {
case apiE := <-a.producers.ApiP.Ch:
err := a.handleApi(apiE)
if err != nil {
a.logError.Println("error handling API event:", err)
}
case <-ctx.Done():
return
}
}
}
func (a *App) handleApi(event events.Api) error {
if event.Name == "" {
return fmt.Errorf("event name is empty")
}
a.pagesMu.Lock()
defer a.pagesMu.Unlock()
page, exists := a.pages[event.Name]
if !exists {
page = &Page{
apiSt: &ApiState{},
name: event.Name,
}
a.pages[event.Name] = page
}
page.apiSt.activeMu.Lock()
page.apiSt.active = event.Stop
page.apiSt.activeMu.Unlock()
if event.Stop {
runtime.EventsEmit(a.wails, "ApiActive-"+page.name, false)
return nil
}
runtime.EventsEmit(a.wails, "ApiActive-"+page.name, true)
page.displayingMu.Lock()
if page.displaying {
runtime.EventsEmit(a.wails, "PageActive", true)
}
page.displayingMu.Unlock()
page.apiSt.respMu.Lock()
page.apiSt.resp = event.Resp
page.apiSt.respMu.Unlock()
a.updatePage(page)
return nil
}
func (a *App) shutdown(ctx context.Context) {
if a.api != nil {
err := a.api.Shutdown()
if err != nil {
a.logError.Println("error shutting down api:", err)
}
// if a.apiS != nil && a.apiS.Api != nil {
// err := a.apiS.Shutdown()
// if err != nil {
// a.logError.Println("error shutting down api:", err)
// }
// close(a.apiS.ch)
// }
err := a.producers.Shutdown()
if err != nil {
a.logError.Println("error closing event producers:", err)
}
a.cancelCtrl()
if a.services != nil {
err := a.services.Close()
if err != nil {
@ -101,27 +193,39 @@ func (a *App) shutdown(ctx context.Context) {
func (a *App) Start() (bool, error) {
runtime.EventsEmit(a.ctx, "StartupMessage", "Initializing database...")
runtime.EventsEmit(a.wails, "StartupMessage", "Initializing database...")
err := a.initServices()
if err != nil {
a.logError.Println("error initializing services:", err)
return false, fmt.Errorf("Error starting Rum Goggles. Try restarting.")
}
runtime.EventsEmit(a.ctx, "StartupMessage", "Initializing database complete.")
runtime.EventsEmit(a.wails, "StartupMessage", "Initializing database complete.")
runtime.EventsEmit(a.ctx, "StartupMessage", "Verifying account sessions...")
runtime.EventsEmit(a.wails, "StartupMessage", "Verifying account sessions...")
count, err := a.verifyAccounts()
if err != nil {
a.logError.Println("error verifying accounts:", err)
return false, fmt.Errorf("Error starting Rum Goggles. Try restarting.")
}
runtime.EventsEmit(a.ctx, "StartupMessage", "Verifying account sessions complete.")
runtime.EventsEmit(a.wails, "StartupMessage", "Verifying account sessions complete.")
runtime.EventsEmit(a.wails, "StartupMessage", "Initializing event producers...")
err = a.initProducers()
if err != nil {
a.logError.Println("error initializing producers:", err)
return false, fmt.Errorf("Error starting Rum Goggles. Try restarting.")
}
runtime.EventsEmit(a.wails, "StartupMessage", "Initializing event producers complete.")
// TODO: check for update - if available, pop up window
// runtime.EventsEmit(a.ctx, "StartupMessage", "Checking for updates...")
// update, err = a.checkForUpdate()
// runtime.EventsEmit(a.ctx, "StartupMessage", "Checking for updates complete.")
ctx, cancel := context.WithCancel(context.Background())
a.cancelCtrl = cancel
go a.handle(ctx)
signin := true
if count > 0 {
signin = false
@ -130,6 +234,25 @@ func (a *App) Start() (bool, error) {
return signin, nil
}
func (a *App) initProducers() error {
producers, err := events.NewProducers(
events.WithLoggers(a.logError, a.logInfo),
events.WithApiProducer(),
)
if err != nil {
return fmt.Errorf("error initializing producers: %v", err)
}
err = producers.Startup()
if err != nil {
return fmt.Errorf("error starting producers: %v", err)
}
a.producers = producers
return nil
}
func (a *App) initServices() error {
db, err := config.Database()
if err != nil {
@ -329,14 +452,14 @@ func (a *App) Login(username string, password string) error {
a.logError.Println("account name is nil")
return fmt.Errorf("Error logging in. Try again.")
}
runtime.EventsEmit(a.ctx, "LoggedIn-"+*name, true)
runtime.EventsEmit(a.wails, "LoggedIn-"+*name, true)
list, err := a.accountList()
if err != nil {
a.logError.Println("error getting account list:", err)
return fmt.Errorf("Error logging in. Try again.")
}
runtime.EventsEmit(a.ctx, "PageSideBarAccounts", list)
runtime.EventsEmit(a.wails, "PageSideBarAccounts", list)
err = a.openDetails(acct)
if err != nil {
@ -402,14 +525,14 @@ func (a *App) Logout(id int64) error {
a.logError.Println("account name is nil")
return fmt.Errorf("Error logging out. Try again.")
}
runtime.EventsEmit(a.ctx, "LoggedIn-"+*name, false)
runtime.EventsEmit(a.wails, "LoggedIn-"+*name, false)
list, err := a.accountList()
if err != nil {
a.logError.Println("error getting account list:", err)
return fmt.Errorf("Error logging out. Try again.")
}
runtime.EventsEmit(a.ctx, "PageSideBarAccounts", list)
runtime.EventsEmit(a.wails, "PageSideBarAccounts", list)
err = a.openDetails(acct)
if err != nil {
@ -510,7 +633,7 @@ func (a *App) OpenChannel(id int64) error {
return nil
}
type Page interface {
type PageInfo interface {
Id() *int64
KeyUrl() *string
LoggedIn() bool
@ -527,39 +650,39 @@ type PageDetails struct {
Type string `json:"type"`
}
func (a *App) openDetails(p Page) error {
id := p.Id()
func (a *App) openDetails(pi PageInfo) error {
id := pi.Id()
if id == nil {
return fmt.Errorf("page id is nil")
}
hasApi := true
key := p.KeyUrl()
key := pi.KeyUrl()
if key == nil || *key == "" {
hasApi = false
}
name := p.String()
name := pi.String()
if name == nil {
return fmt.Errorf("page name is nil")
}
title := p.Title()
title := pi.Title()
if title == nil {
return fmt.Errorf("page title is nil")
}
runtime.EventsEmit(a.ctx, "PageDetails", PageDetails{
runtime.EventsEmit(a.wails, "PageDetails", PageDetails{
ID: *id,
HasApi: hasApi,
LoggedIn: p.LoggedIn(),
LoggedIn: pi.LoggedIn(),
Title: *title,
Type: p.Type(),
Type: pi.Type(),
})
err := a.api.Display(*name)
err := a.display(*name)
if err != nil {
return fmt.Errorf("error displaying api for %s: %v", *name, err)
return fmt.Errorf("error displaying page: %v", err)
}
return nil
@ -606,32 +729,60 @@ func (a *App) ActivateChannel(id int64) error {
// If page is inactivate, activate.
// If page is active, deactivate.
func (a *App) activatePage(p Page) error {
name := p.String()
func (a *App) activatePage(pi PageInfo) error {
name := pi.String()
if name == nil {
return fmt.Errorf("page name is nil")
}
url := p.KeyUrl()
url := pi.KeyUrl()
if url == nil {
return fmt.Errorf("page key url is nil")
}
if a.api.Active(*name) {
err := a.api.Stop(*name)
if err != nil {
return fmt.Errorf("error stopping api: %v", err)
a.pagesMu.Lock()
page, exists := a.pages[*name]
if !exists {
page = &Page{
active: false,
apiSt: &ApiState{},
name: *name,
}
a.pages[*name] = page
}
a.pagesMu.Unlock()
page.activeMu.Lock()
defer page.activeMu.Unlock()
if page.active {
if a.producers.ApiP.Active(*name) {
err := a.producers.ApiP.Stop(*name)
if err != nil {
return fmt.Errorf("error stopping api: %v", err)
}
}
page.displayingMu.Lock()
if page.displaying {
runtime.EventsEmit(a.wails, "PageActive", false)
}
page.displayingMu.Unlock()
page.active = false
return nil
}
page.active = true
err := a.api.Start(*name, *url, 10*time.Second)
err := a.producers.ApiP.Start(*name, *url, 10*time.Second)
if err != nil {
return fmt.Errorf("error starting api: %v", err)
}
err = a.api.Display(*name)
runtime.EventsEmit(a.wails, "ApiActive-"+*name, true)
err = a.display(*name)
if err != nil {
return fmt.Errorf("error displaying api: %v", err)
return fmt.Errorf("error displaying page: %v", err)
}
runtime.EventsEmit(a.wails, "PageActive", true)
return nil
}
@ -661,8 +812,8 @@ func (a *App) DeleteAccount(id int64) error {
return fmt.Errorf("Error deleting account. Try again.")
}
if a.api.Active(*name) {
err := a.api.Stop(*name)
if a.producers.ApiP.Active(*name) {
err := a.producers.ApiP.Stop(*name)
if err != nil {
a.logError.Println("error stopping api:", err)
return fmt.Errorf("Error deleting account. Try again.")
@ -675,7 +826,7 @@ func (a *App) DeleteAccount(id int64) error {
return fmt.Errorf("Error deleting account. Try again.")
}
runtime.EventsEmit(a.ctx, "PageDetails", nil)
runtime.EventsEmit(a.wails, "PageDetails", nil)
list, err := a.accountList()
if err != nil {
@ -683,7 +834,7 @@ func (a *App) DeleteAccount(id int64) error {
return fmt.Errorf("Error deleting account. Try again.")
}
runtime.EventsEmit(a.ctx, "PageSideBarAccounts", list)
runtime.EventsEmit(a.wails, "PageSideBarAccounts", list)
return nil
}
@ -704,8 +855,8 @@ func (a *App) DeleteChannel(id int64) error {
return fmt.Errorf("Error deleting channel. Try again.")
}
if a.api.Active(*name) {
err := a.api.Stop(*name)
if a.producers.ApiP.Active(*name) {
err := a.producers.ApiP.Stop(*name)
if err != nil {
a.logError.Println("error stopping api:", err)
return fmt.Errorf("Error deleting channel. Try again.")
@ -718,7 +869,7 @@ func (a *App) DeleteChannel(id int64) error {
return fmt.Errorf("Error deleting channel. Try again.")
}
runtime.EventsEmit(a.ctx, "PageDetails", nil)
runtime.EventsEmit(a.wails, "PageDetails", nil)
list, err := a.accountList()
if err != nil {
@ -726,7 +877,79 @@ func (a *App) DeleteChannel(id int64) error {
return fmt.Errorf("Error deleting channel. Try again.")
}
runtime.EventsEmit(a.ctx, "PageSideBarAccounts", list)
runtime.EventsEmit(a.wails, "PageSideBarAccounts", list)
return nil
}
func (a *App) display(name string) error {
a.displayingMu.Lock()
defer a.displayingMu.Unlock()
if name == a.displaying {
return nil
}
a.pagesMu.Lock()
defer a.pagesMu.Unlock()
if a.displaying != "" {
displaying, exists := a.pages[a.displaying]
a.displaying = ""
if !exists {
return fmt.Errorf("displaying page does not exist: %s", a.display)
}
displaying.displayingMu.Lock()
displaying.displaying = false
displaying.displayingMu.Unlock()
}
page, exists := a.pages[name]
if !exists {
page = &Page{
active: false,
apiSt: &ApiState{},
name: name,
}
a.pages[name] = page
}
page.displayingMu.Lock()
page.displaying = true
page.displayingMu.Unlock()
a.displaying = name
err := a.updatePage(page)
if err != nil {
return fmt.Errorf("error updating page: %v", err)
}
return nil
}
func (a *App) updatePage(p *Page) error {
if p == nil {
return fmt.Errorf("page is nil")
}
//TODO check p.api == nil
p.apiSt.respMu.Lock()
defer p.apiSt.respMu.Unlock()
p.displayingMu.Lock()
if p.displaying {
runtime.EventsEmit(a.wails, "PageActivity", p.apiSt.resp)
p.activeMu.Lock()
runtime.EventsEmit(a.wails, "PageActive", p.active)
p.activeMu.Unlock()
}
p.displayingMu.Unlock()
if p.apiSt.resp != nil {
isLive := len(p.apiSt.resp.Livestreams) > 0
runtime.EventsEmit(a.wails, "PageLive-"+p.name, isLive)
}
return nil
}
@ -735,14 +958,24 @@ func (a *App) PageStatus(name string) {
active := false
isLive := false
resp := a.api.Response(name)
if resp != nil {
active = true
isLive = len(resp.Livestreams) > 0
// resp := a.api.Response(name)
a.pagesMu.Lock()
defer a.pagesMu.Unlock()
page, exists := a.pages[name]
if exists && page.apiSt != nil {
page.apiSt.activeMu.Lock()
active = page.apiSt.active
page.apiSt.activeMu.Unlock()
page.apiSt.respMu.Lock()
if page.apiSt.resp != nil {
isLive = len(page.apiSt.resp.Livestreams) > 0
}
page.apiSt.respMu.Unlock()
}
runtime.EventsEmit(a.ctx, "ApiActive-"+name, active)
runtime.EventsEmit(a.ctx, "PageLive-"+name, isLive)
runtime.EventsEmit(a.wails, "ApiActive-"+name, active)
runtime.EventsEmit(a.wails, "PageLive-"+name, isLive)
}
func (a *App) UpdateAccountApi(id int64, apiKey string) error {
@ -761,8 +994,8 @@ func (a *App) UpdateAccountApi(id int64, apiKey string) error {
return fmt.Errorf("Error updating account. Try again.")
}
if a.api.Active(*name) {
err := a.api.Stop(*name)
if a.producers.ApiP.Active(*name) {
err := a.producers.ApiP.Stop(*name)
if err != nil {
a.logError.Println("error stopping api:", err)
return fmt.Errorf("Error updating account. Try again.")
@ -806,8 +1039,8 @@ func (a *App) UpdateChannelApi(id int64, apiKey string) error {
return fmt.Errorf("Error updating channel. Try again.")
}
if a.api.Active(*name) {
err := a.api.Stop(*name)
if a.producers.ApiP.Active(*name) {
err := a.producers.ApiP.Stop(*name)
if err != nil {
a.logError.Println("error stopping api:", err)
return fmt.Errorf("Error updating channel. Try again.")

12
v1/frontend/src/components/PageDetails.jsx
View file

@ -96,11 +96,13 @@ function PageDetails(props) {
EventsOn('PageActivity', (event) => {
setActivity(event);
setActive(true);
if (event.livestreams.length > 0) {
setLive(true);
} else {
setLive(false);
if (event !== null) {
setActive(true);
if (event.livestreams.length > 0) {
setLive(true);
} else {
setLive(false);
}
}
});

257
v1/internal/api/api.go
View file

@ -1,257 +0,0 @@
package api
import (
"context"
"fmt"
"log"
"sync"
"time"
rumblelivestreamlib "github.com/tylertravisty/rumble-livestream-lib-go"
"github.com/wailsapp/wails/v2/pkg/runtime"
)
type Api struct {
callers map[string]*caller
callersMu sync.Mutex
ctx context.Context
display string
displayMu sync.Mutex
logError *log.Logger
logInfo *log.Logger
}
type caller struct {
cancel context.CancelFunc
cancelMu sync.Mutex
display bool
displayMu sync.Mutex
interval time.Duration
name string
response *rumblelivestreamlib.LivestreamResponse
responseMu sync.Mutex
url string
}
type event struct {
close bool
err error
name string
resp *rumblelivestreamlib.LivestreamResponse
}
func NewApi(logError *log.Logger, logInfo *log.Logger) *Api {
return &Api{logError: logError, logInfo: logInfo}
}
func (a *Api) Response(name string) *rumblelivestreamlib.LivestreamResponse {
a.callersMu.Lock()
defer a.callersMu.Unlock()
caller, exists := a.callers[name]
if !exists {
return nil
}
caller.responseMu.Lock()
defer caller.responseMu.Unlock()
copy := *caller.response
return &copy
}
func (a *Api) Display(name string) error {
a.displayMu.Lock()
defer a.displayMu.Unlock()
if name == a.display {
return nil
}
a.callersMu.Lock()
defer a.callersMu.Unlock()
if a.display != "" {
displaying, exists := a.callers[a.display]
if !exists {
return pkgErr("", fmt.Errorf("displaying caller does not exist: %s", a.display))
}
displaying.displayMu.Lock()
displaying.display = false
displaying.displayMu.Unlock()
a.display = ""
}
caller, exists := a.callers[name]
if !exists {
// return pkgErr("", fmt.Errorf("caller does not exist: %s", name))
runtime.EventsEmit(a.ctx, "PageActive", false)
return nil
}
caller.displayMu.Lock()
caller.display = true
caller.displayMu.Unlock()
a.display = name
a.handleResponse(caller)
return nil
}
func (a *Api) Startup(ctx context.Context) {
a.ctx = ctx
a.callers = map[string]*caller{}
}
func (a *Api) Shutdown() error {
for _, caller := range a.callers {
caller.cancelMu.Lock()
if caller.cancel != nil {
caller.cancel()
}
caller.cancelMu.Unlock()
}
return nil
}
func (a *Api) Start(name string, url string, interval time.Duration) error {
if name == "" {
return fmt.Errorf("name is empty")
}
if url == "" {
return fmt.Errorf("url is empty")
}
a.callersMu.Lock()
defer a.callersMu.Unlock()
if _, active := a.callers[name]; active {
return nil
}
ctx, cancel := context.WithCancel(context.Background())
caller := &caller{
cancel: cancel,
interval: interval,
name: name,
url: url,
}
a.callers[name] = caller
go a.run(ctx, caller)
return nil
}
func (a *Api) run(ctx context.Context, caller *caller) {
client := &rumblelivestreamlib.Client{StreamKey: caller.url}
for {
runtime.EventsEmit(a.ctx, "ApiActive-"+caller.name, true)
caller.displayMu.Lock()
if caller.display {
runtime.EventsEmit(a.ctx, "PageActive", true)
}
caller.displayMu.Unlock()
resp, err := a.query(client)
if err != nil {
a.logError.Println(pkgErr("error querying api", err))
// runtime.EventsEmit(a.ctx, "ApiActive-"+caller.name, false)
a.stop(caller)
return
}
caller.responseMu.Lock()
caller.response = resp
caller.responseMu.Unlock()
a.handleResponse(caller)
timer := time.NewTimer(caller.interval)
select {
case <-ctx.Done():
timer.Stop()
// runtime.EventsEmit(a.ctx, "ApiActive-"+caller.name, false)
a.stop(caller)
return
case <-timer.C:
}
}
}
func (a *Api) handleResponse(c *caller) {
if c == nil {
return
}
c.responseMu.Lock()
defer c.responseMu.Unlock()
if c.response == nil {
return
}
c.displayMu.Lock()
if c.display {
runtime.EventsEmit(a.ctx, "PageActivity", c.response)
}
c.displayMu.Unlock()
isLive := len(c.response.Livestreams) > 0
runtime.EventsEmit(a.ctx, "PageLive-"+c.name, isLive)
}
func (a *Api) stop(c *caller) {
if c == nil {
return
}
runtime.EventsEmit(a.ctx, "ApiActive-"+c.name, false)
c.displayMu.Lock()
if c.display {
c.display = false
runtime.EventsEmit(a.ctx, "PageActive", false)
}
c.displayMu.Unlock()
a.displayMu.Lock()
if a.display == c.name {
a.display = ""
}
a.displayMu.Unlock()
a.callersMu.Lock()
delete(a.callers, c.name)
a.callersMu.Unlock()
return
}
func (a *Api) Active(name string) bool {
a.callersMu.Lock()
defer a.callersMu.Unlock()
_, active := a.callers[name]
return active
}
func (a *Api) Stop(name string) error {
a.callersMu.Lock()
caller, exists := a.callers[name]
if !exists {
return pkgErr("", fmt.Errorf("caller does not exist: %s", name))
}
a.callersMu.Unlock()
caller.cancelMu.Lock()
if caller.cancel != nil {
caller.cancel()
}
caller.cancelMu.Unlock()
return nil
}
func (a *Api) query(client *rumblelivestreamlib.Client) (*rumblelivestreamlib.LivestreamResponse, error) {
resp, err := client.Request()
if err != nil {
return nil, fmt.Errorf("error executing client request: %v", err)
}
return resp, nil
}

192
v1/internal/events/api.go Normal file
View file

@ -0,0 +1,192 @@
package events
import (
"context"
"fmt"
"log"
"sync"
"time"
rumblelivestreamlib "github.com/tylertravisty/rumble-livestream-lib-go"
)
type Api struct {
Name string
Resp *rumblelivestreamlib.LivestreamResponse
Stop bool
}
type apiProducer struct {
cancel context.CancelFunc
cancelMu sync.Mutex
interval time.Duration
name string
url string
}
type ApiProducer struct {
Ch chan Api
close bool
closeMu sync.Mutex
closeCh chan bool
logError *log.Logger
logInfo *log.Logger
producers map[string]*apiProducer
producersMu sync.Mutex
}
func NewApiProducer(logError *log.Logger, logInfo *log.Logger) *ApiProducer {
return &ApiProducer{
Ch: make(chan Api, 10),
closeCh: make(chan bool),
logError: logError,
logInfo: logInfo,
producers: map[string]*apiProducer{},
}
}
func (ap *ApiProducer) Active(name string) bool {
ap.producersMu.Lock()
defer ap.producersMu.Unlock()
_, active := ap.producers[name]
return active
}
func (ap *ApiProducer) Shutdown() error {
wait := false
ap.producersMu.Lock()
if len(ap.producers) > 0 {
ap.closeMu.Lock()
ap.close = true
ap.closeMu.Unlock()
}
for _, producer := range ap.producers {
producer.cancelMu.Lock()
if producer.cancel != nil {
producer.cancel()
}
producer.cancelMu.Unlock()
}
ap.producersMu.Unlock()
if wait {
timer := time.NewTimer(3 * time.Second)
select {
case <-ap.closeCh:
close(ap.Ch)
case <-timer.C:
return pkgErr("", fmt.Errorf("not all producers were stopped"))
}
}
return nil
}
func (ap *ApiProducer) Start(name string, url string, interval time.Duration) error {
if name == "" {
return pkgErr("", fmt.Errorf("name is empty"))
}
if url == "" {
return pkgErr("", fmt.Errorf("url is empty"))
}
ap.producersMu.Lock()
defer ap.producersMu.Unlock()
if _, active := ap.producers[name]; active {
return nil
}
ctx, cancel := context.WithCancel(context.Background())
producer := &apiProducer{
cancel: cancel,
interval: interval,
name: name,
url: url,
}
ap.producers[name] = producer
go ap.run(ctx, producer)
return nil
}
func (ap *ApiProducer) Stop(name string) error {
ap.producersMu.Lock()
producer, exists := ap.producers[name]
if !exists {
return pkgErr("", fmt.Errorf("producer does not exist: %s", name))
}
ap.producersMu.Unlock()
producer.cancelMu.Lock()
if producer.cancel != nil {
producer.cancel()
}
producer.cancelMu.Unlock()
return nil
}
func (ap *ApiProducer) run(ctx context.Context, producer *apiProducer) {
client := &rumblelivestreamlib.Client{StreamKey: producer.url}
for {
resp, err := apiQuery(client)
if err != nil {
ap.logError.Println(pkgErr("error querying api", err))
ap.stop(producer)
return
}
ap.handleResponse(producer, resp)
timer := time.NewTimer(producer.interval)
select {
case <-ctx.Done():
timer.Stop()
ap.stop(producer)
return
case <-timer.C:
}
}
}
func (ap *ApiProducer) handleResponse(p *apiProducer, resp *rumblelivestreamlib.LivestreamResponse) {
if p == nil || resp == nil {
return
}
ap.Ch <- Api{Name: p.name, Resp: resp}
}
func apiQuery(client *rumblelivestreamlib.Client) (*rumblelivestreamlib.LivestreamResponse, error) {
resp, err := client.Request()
if err != nil {
return nil, fmt.Errorf("error executing client request: %v", err)
}
return resp, nil
}
func (ap *ApiProducer) stop(p *apiProducer) {
if p == nil {
return
}
ap.Ch <- Api{Name: p.name, Stop: true}
ap.producersMu.Lock()
delete(ap.producers, p.name)
remaining := len(ap.producers)
ap.producersMu.Unlock()
ap.closeMu.Lock()
if remaining == 0 && ap.close {
select {
case ap.closeCh <- true:
default:
break
}
}
ap.closeMu.Unlock()
return
}

4
v1/internal/api/error.go → v1/internal/events/error.go
View file

@ -1,8 +1,8 @@
package api
package events
import "fmt"
const pkgName = "api"
const pkgName = "events"
func pkgErr(prefix string, err error) error {
pkgErr := pkgName

63
v1/internal/events/producers.go Normal file
View file

@ -0,0 +1,63 @@
package events
import (
"fmt"
"log"
)
type Producers struct {
logError *log.Logger
logInfo *log.Logger
ApiP *ApiProducer
}
func (p *Producers) Startup() error {
return nil
}
func (p *Producers) Shutdown() error {
err := p.ApiP.Shutdown()
if err != nil {
return pkgErr("error shutting down api producer", err)
}
return nil
}
type ProducersInit func(*Producers) error
func NewProducers(inits ...ProducersInit) (*Producers, error) {
var p Producers
for _, init := range inits {
err := init(&p)
if err != nil {
return nil, err
}
}
return &p, nil
}
func WithLoggers(logError *log.Logger, logInfo *log.Logger) ProducersInit {
return func(p *Producers) error {
if logError == nil {
return pkgErr("", fmt.Errorf("error logger is nil"))
}
p.logError = logError
if logInfo == nil {
return pkgErr("", fmt.Errorf("info logger is nil"))
}
p.logInfo = logInfo
return nil
}
}
func WithApiProducer() ProducersInit {
return func(p *Producers) error {
p.ApiP = NewApiProducer(p.logError, p.logInfo)
return nil
}
}