/
http-routes.go
135 lines (124 loc) · 3.86 KB
/
http-routes.go
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package httproutes
import (
"encoding/json"
"log"
"net/http"
"github.com/gorilla/websocket"
"github.com/jaskaransarkaria/programming-timer-server/readers"
"github.com/jaskaransarkaria/programming-timer-server/session"
"github.com/jaskaransarkaria/programming-timer-server/utils"
)
var upgrader = websocket.Upgrader{
// empty struct means use defaults
ReadBufferSize: 1024,
WriteBufferSize: 1024,
}
func enableCors(w *http.ResponseWriter) { (*w).Header().Set("Access-Control-Allow-Origin", "*") }
func wsEndpoint(w http.ResponseWriter, r *http.Request) {
// this is for CORS - allow all origin
upgrader.CheckOrigin = func(r *http.Request) bool { return true }
// upgrade http connection to a websocket
ws, err := upgrader.Upgrade(w, r, nil)
if err != nil {
log.Println(err)
}
log.Println("Client successfully connected to Golang Websocket!")
go readers.ConnReader(ws)
}
func updateSessionEndpoint(w http.ResponseWriter, r *http.Request) {
var sessionToUpdate session.UpdateRequest
var requestBody = r.Body
enableCors(&w)
err := json.NewDecoder(requestBody).Decode(&sessionToUpdate)
if err != nil {
log.Println(err)
}
defer r.Body.Close()
session.UpdateTimerChannel <- sessionToUpdate
}
func pauseSessionEndpoint(w http.ResponseWriter, r *http.Request) {
var sessionToPause session.PauseRequest
var requestBody = r.Body
log.Println("request body", requestBody)
enableCors(&w)
err := json.NewDecoder(requestBody).Decode(&sessionToPause)
log.Println("pause session endpoint reached", sessionToPause)
if err != nil {
log.Println(err)
}
defer r.Body.Close()
session.PauseTimerChannel <- sessionToPause
}
func unpauseSessionEndpoint(w http.ResponseWriter, r *http.Request) {
var sessionToUnpause session.UnpauseRequest
var requestBody = r.Body
log.Println("request body", requestBody)
enableCors(&w)
err := json.NewDecoder(requestBody).Decode(&sessionToUnpause)
log.Println("unpause session endpoint reached", sessionToUnpause)
if err != nil {
log.Println(err)
}
defer r.Body.Close()
session.UnpauseTimerChannel <- sessionToUnpause
}
func newSessionEndpoint(w http.ResponseWriter, r *http.Request) {
var timerRequest session.StartTimerReq
var requestBody = r.Body
log.Println(requestBody)
enableCors(&w)
err := json.NewDecoder(requestBody).Decode(&timerRequest)
if err != nil {
log.Println(err)
}
defer r.Body.Close()
newUser := session.User{UUID: utils.GenerateRandomID("user")}
newSession := session.CreateNewUserAndSession(
timerRequest,
newUser,
utils.GenerateRandomID,
)
resp := session.InitSessionResponse{
Session: newSession,
User: newUser,
}
newSessionRes, _ := json.Marshal(resp)
w.Write(newSessionRes)
}
func joinSessionEndpoint(w http.ResponseWriter, r *http.Request) {
var sessionRequest session.ExistingSessionReq
var requestBody = r.Body
enableCors(&w)
err := json.NewDecoder(requestBody).Decode(&sessionRequest)
if err != nil {
log.Println(err)
}
defer r.Body.Close()
var newUser = session.User{UUID: utils.GenerateRandomID("user")}
matchedSession, err := session.JoinExistingSession(sessionRequest, newUser)
if err != nil {
bufferedErr, _ := json.Marshal(err)
w.Write(bufferedErr)
}
resp := session.InitSessionResponse{
Session: matchedSession,
User: newUser,
}
bufferedExistingSession, _ := json.Marshal(resp)
w.Write(bufferedExistingSession)
}
func SetupRoutes() {
http.HandleFunc("/healthz", func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(200)
w.Write([]byte("ok"))
})
http.HandleFunc("/ws", wsEndpoint)
http.HandleFunc("/session/new", newSessionEndpoint)
http.HandleFunc("/session/join", joinSessionEndpoint)
http.HandleFunc("/session/update", updateSessionEndpoint)
go readers.UpdateChannelReader()
http.HandleFunc("/session/pause", pauseSessionEndpoint)
go readers.PauseChannelReader()
http.HandleFunc("/session/unpause", unpauseSessionEndpoint)
go readers.UnpauseChannelReader()
}