feat: create simulation service

.github/workflows/simulation.yaml

@@ -0,0 +1,27 @@
+name: Publish Simulation Service
+on:
+    workflow_dispatch:
+
+jobs:
+  build-and-push:
+    name: Build and Publish
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Get the version (release tag)
+        run: echo "IMAGE_VERSION=${GITHUB_REF/refs\/tags\//}" >> $GITHUB_ENV
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+      - name: Login to DockerHub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKERHUB_USERNAME }}
+          password: ${{ secrets.DOCKERHUB_TOKEN }}
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: ./
+          file: ./simulation/Dockerfile
+          push: true
+          tags: tfgco/maestro-simulation:${{ env.IMAGE_VERSION }}

simulation/Dockerfile

@@ -0,0 +1,18 @@
+FROM golang:1.23-alpine AS build
+
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 GOOS=linux go build -o room .
+
+FROM alpine:edge
+
+WORKDIR /app
+COPY --from=build /app/room .
+
+RUN apk --no-cache add ca-certificates tzdata
+
+ENTRYPOINT ["/app/room"]

simulation/app/server.go

@@ -0,0 +1,38 @@
+package app
+
+import (
+	"context"
+	"errors"
+	"net/http"
+
+	ginadapter "git.topfreegames.com/maestro/test-service/internal/adapters/gin"
+	"git.topfreegames.com/maestro/test-service/internal/core"
+	"github.com/gin-gonic/gin"
+)
+
+type Server struct {
+	RoomManager *core.RoomManager
+	httpServer  *http.Server
+}
+
+func (s *Server) Start() {
+	handler := ginadapter.RoomHandler{RoomManager: s.RoomManager}
+
+	r := gin.Default()
+	r.PUT("/room", handler.UpdateGameRoom)
+	r.PUT("/status", handler.UpdateStatus)
+	r.PUT("/matches", handler.UpdateRunningMatches)
+
+	s.httpServer = &http.Server{
+		Addr:    ":8080",
+		Handler: r.Handler(),
+	}
+
+	if err := s.httpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
+		panic(err)
+	}
+}
+
+func (s *Server) Shutdown(ctx context.Context) error {
+	return s.httpServer.Shutdown(ctx)
+}

simulation/app/woker.go

@@ -0,0 +1,45 @@
+package app
+
+import (
+	"context"
+	"log"
+	"time"
+
+	"git.topfreegames.com/maestro/test-service/internal/core"
+)
+
+type Worker struct {
+	Worker *core.Worker
+
+	ticker *time.Ticker
+	quit   chan bool
+	cancel context.CancelFunc
+}
+
+func (w *Worker) Start() {
+	w.ticker = time.NewTicker(1 * time.Second)
+	w.quit = make(chan bool)
+	ctx, cancel := context.WithCancel(context.Background())
+	w.cancel = cancel
+
+	go func() {
+		for {
+			select {
+			case <-w.quit:
+				return
+			case <-w.ticker.C:
+				go w.Worker.Sync(ctx)
+			}
+		}
+	}()
+}
+
+func (w *Worker) Stop(_ context.Context) {
+	defer w.cancel()
+	w.ticker.Stop()
+
+	log.Println("Stopping worker...")
+	time.Sleep(2 * time.Second) // wait ongoing sync
+	w.quit <- true
+	log.Println("Worker stopped")
+}

simulation/go.mod

@@ -0,0 +1,47 @@
+module git.topfreegames.com/maestro/test-service
+
+go 1.23.2
+
+require (
+	github.com/gin-gonic/gin v1.10.0
+	github.com/knadh/koanf/parsers/yaml v0.1.0
+	github.com/knadh/koanf/providers/env v1.0.0
+	github.com/knadh/koanf/providers/file v1.1.2
+	github.com/knadh/koanf/providers/structs v0.1.0
+	github.com/knadh/koanf/v2 v2.1.2
+)
+
+require (
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/fatih/structs v1.1.0 // indirect
+	github.com/fsnotify/fsnotify v1.7.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.20.0 // indirect
+	github.com/go-viper/mapstructure/v2 v2.2.1 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/knadh/koanf/maps v0.1.1 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mitchellh/copystructure v1.2.0 // indirect
+	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sys v0.21.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

simulation/go.sum

@@ -0,0 +1,63 @@
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+github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
+github.com/cloudwego/iasm v0.2.0/go.mod h1:8rXZaNYT2n95jn+zTI1sDr+IgcD2GVs0nlbbQPiEFhY=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
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simulation/internal/adapters/gin/room.go

@@ -0,0 +1,68 @@
+package gin
+
+import (
+	"fmt"
+
+	"git.topfreegames.com/maestro/test-service/internal/core"
+	"github.com/gin-gonic/gin"
+)
+
+type RoomHandler struct {
+	RoomManager *core.RoomManager
+}
+
+type Request struct {
+	Status         string `form:"status"`
+	RunningMatches int    `form:"running_matches"`
+}
+
+func (h *RoomHandler) UpdateGameRoom(c *gin.Context) {
+	status, runningMatches, err := parseRequest(c)
+	if err != nil {
+		c.JSON(400, gin.H{"error": "invalid request"})
+		return
+	}
+
+	room := h.RoomManager.UpdateGameRoom(status, runningMatches)
+
+	c.JSON(200, gin.H{"status": room.Status, "runningMatches": room.RunningMatches})
+}
+
+func (h *RoomHandler) UpdateStatus(c *gin.Context) {
+	status, _, err := parseRequest(c)
+	if err != nil {
+		c.JSON(400, gin.H{"error": "invalid request"})
+		return
+	}
+
+	room := h.RoomManager.UpdateStatus(status)
+
+	c.JSON(200, gin.H{"status": room.Status, "runningMatches": room.RunningMatches})
+}
+
+func (h *RoomHandler) UpdateRunningMatches(c *gin.Context) {
+	_, runningMatches, err := parseRequest(c)
+	if err != nil {
+		c.JSON(400, gin.H{"error": "invalid request"})
+		return
+	}
+
+	room := h.RoomManager.UpdateRunningMatches(runningMatches)
+
+	c.JSON(200, gin.H{"status": room.Status, "runningMatches": room.RunningMatches})
+}
+
+func parseRequest(c *gin.Context) (core.Status, int, error) {
+	var req Request
+
+	if c.ShouldBind(&req) != nil {
+		return core.Unknown, 0, fmt.Errorf("invalid request")
+	}
+
+	status, err := core.StatusFromString(req.Status)
+	if err != nil {
+		return core.Unknown, 0, err
+	}
+
+	return status, req.RunningMatches, nil
+}

simulation/internal/core/config.go

@@ -0,0 +1,61 @@
+package core
+
+import (
+	"log"
+	"strings"
+	"time"
+
+	"github.com/knadh/koanf/providers/env"
+	"github.com/knadh/koanf/providers/structs"
+	"github.com/knadh/koanf/v2"
+)
+
+type RoomConfig struct {
+	ID string `koanf:"id"`
+}
+
+type SchedulerConfig struct {
+	Name string `koanf:"name"`
+}
+
+type Config struct {
+	SyncInterval  time.Duration   `koanf:"syncinterval"`
+	InitialStatus string          `koanf:"initialstatus"`
+	URL           string          `koanf:"url"`
+	Room          RoomConfig      `koanf:"room"`
+	Scheduler     SchedulerConfig `koanf:"scheduler"`
+}
+
+func NewDefaultConfig() *Config {
+	return &Config{
+		SyncInterval:  5 * time.Second,
+		InitialStatus: "unready",
+	}
+}
+
+func LoadConfig() *Config {
+	k := koanf.New(".")
+
+	_ = k.Load(structs.Provider(NewDefaultConfig(), "room"), nil)
+
+	// This is to load MAESTRO_* environment variables
+	if err := k.Load(env.Provider("", ".", parseEnv), nil); err != nil {
+		log.Fatalf("error loading config from env: %v", err)
+	}
+
+	if err := k.Load(env.Provider("SIMULATION_", ".", parseEnv), nil); err != nil {
+		log.Fatalf("error loading config from env: %v", err)
+	}
+
+	var config Config
+	if err := k.Unmarshal("", &config); err != nil {
+		log.Fatalf("error unmarshalling config: %v", err)
+	}
+
+	return &config
+}
+
+func parseEnv(s string) string {
+	return strings.Replace(strings.ToLower(
+		strings.TrimPrefix(s, "SIMULATION_")), "_", ".", -1)
+}