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package main
import (
"context"
"fmt"
"log"
"net/http"
"os"
"strconv"
"github.com/jackc/pgx/v5"
"github.com/labstack/echo/v4"
"github.com/nsfisis/iosdc-2024-albatross-backend/db"
)
type Config struct {
dbHost string
dbPort string
dbUser string
dbPassword string
dbName string
}
var config *Config
func loadEnv() (*Config, error) {
dbHost, exists := os.LookupEnv("ALBATROSS_DB_HOST")
if !exists {
return nil, fmt.Errorf("ALBATROSS_DB_HOST not set")
}
dbPort, exists := os.LookupEnv("ALBATROSS_DB_PORT")
if !exists {
return nil, fmt.Errorf("ALBATROSS_DB_PORT not set")
}
dbUser, exists := os.LookupEnv("ALBATROSS_DB_USER")
if !exists {
return nil, fmt.Errorf("ALBATROSS_DB_USER not set")
}
dbPassword, exists := os.LookupEnv("ALBATROSS_DB_PASSWORD")
if !exists {
return nil, fmt.Errorf("ALBATROSS_DB_PASSWORD not set")
}
dbName, exists := os.LookupEnv("ALBATROSS_DB_NAME")
if !exists {
return nil, fmt.Errorf("ALBATROSS_DB_NAME not set")
}
return &Config{
dbHost: dbHost,
dbPort: dbPort,
dbUser: dbUser,
dbPassword: dbPassword,
dbName: dbName,
}, nil
}
const (
gameTypeGolf = "golf"
)
const (
gameStateWaiting = "waiting"
gameStateReady = "ready"
gameStatePlaying = "playing"
gameStateFinished = "finished"
)
type Game struct {
GameID int `db:"game_id"`
// "golf"
Type string `db:"type"`
CreatedAt string `db:"created_at"`
State string `db:"state"`
}
var gameHubs = map[int]*GameHub{}
func startGame(game *Game) {
if gameHubs[game.GameID] != nil {
return
}
gameHubs[game.GameID] = NewGameHub(game)
go gameHubs[game.GameID].Run()
}
/*
func handleGolfPost(w http.ResponseWriter, r *http.Request) {
var yourTeam string
waitingGolfGames := []Game{}
err := db.Select(&waitingGolfGames, "SELECT * FROM games WHERE type = $1 AND state = $2 ORDER BY created_at", gameTypeGolf, gameStateWaiting)
if err != nil {
http.Error(w, "Error getting games", http.StatusInternalServerError)
return
}
if len(waitingGolfGames) == 0 {
_, err = db.Exec("INSERT INTO games (type, state) VALUES ($1, $2)", gameTypeGolf, gameStateWaiting)
if err != nil {
http.Error(w, "Error creating game", http.StatusInternalServerError)
return
}
waitingGolfGames = []Game{}
err = db.Select(&waitingGolfGames, "SELECT * FROM games WHERE type = $1 AND state = $2 ORDER BY created_at", gameTypeGolf, gameStateWaiting)
if err != nil {
http.Error(w, "Error getting games", http.StatusInternalServerError)
return
}
yourTeam = "a"
startGame(&waitingGolfGames[0])
} else {
yourTeam = "b"
db.Exec("UPDATE games SET state = $1 WHERE game_id = $2", gameStateReady, waitingGolfGames[0].GameID)
}
waitingGame := waitingGolfGames[0]
http.Redirect(w, r, fmt.Sprintf("/golf/%d/%s/", waitingGame.GameID, yourTeam), http.StatusSeeOther)
}
*/
func handleApiLogin(c echo.Context, queries *db.Queries) error {
type LoginRequestData struct {
Username string `json:"username"`
Password string `json:"password"`
}
type LoginResponseData struct {
UserId int `json:"userId"`
}
ctx := c.Request().Context()
requestData := new(LoginRequestData)
if err := c.Bind(requestData); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, err.Error())
}
userId, err := authLogin(ctx, queries, requestData.Username, requestData.Password)
if err != nil {
return echo.NewHTTPError(http.StatusUnauthorized, err.Error())
}
responseData := LoginResponseData{
UserId: userId,
}
return c.JSON(http.StatusOK, responseData)
}
func main() {
var err error
config, err = loadEnv()
if err != nil {
fmt.Printf("Error loading env %v", err)
return
}
ctx := context.Background()
conn, err := pgx.Connect(ctx, fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable", config.dbHost, config.dbPort, config.dbUser, config.dbPassword, config.dbName))
if err != nil {
log.Fatalf("Error connecting to db %v", err)
}
defer conn.Close(ctx)
queries := db.New(conn)
e := echo.New()
e.Static("/assets", "public/assets")
e.GET("/*", func(c echo.Context) error {
return c.File("public/index.html")
})
e.GET("/sock/golf/:gameId/watch", func(c echo.Context) error {
gameId := c.Param("gameId")
gameIdInt, err := strconv.Atoi(gameId)
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Invalid game id")
}
var hub *GameHub
for _, h := range gameHubs {
if h.game.GameID == gameIdInt {
hub = h
break
}
}
if hub == nil {
return echo.NewHTTPError(http.StatusNotFound, "Game not found")
}
return serveWsWatcher(hub, c.Response(), c.Request())
})
e.GET("/sock/golf/:gameId/play", func(c echo.Context) error {
gameId := c.Param("gameId")
gameIdInt, err := strconv.Atoi(gameId)
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, "Invalid game id")
}
var hub *GameHub
for _, h := range gameHubs {
if h.game.GameID == gameIdInt {
hub = h
break
}
}
if hub == nil {
return echo.NewHTTPError(http.StatusNotFound, "Game not found")
}
return serveWs(hub, c.Response(), c.Request(), "a")
})
e.POST("/api/login", func(c echo.Context) error {
return handleApiLogin(c, queries)
})
defer func() {
for _, hub := range gameHubs {
hub.Close()
}
}()
if err := e.Start(":80"); err != http.ErrServerClosed {
log.Fatal(err)
}
}
|
