initial commit

2025-02-02 15:11:35 +01:00 · 2025-02-02 15:11:35 +01:00 · 3640116dd5
commit 3640116dd5
39 changed files with 10298 additions and 0 deletions
--- a/.dockerignore
+++ b/.dockerignore
@ -0,0 +1 @@
+/build
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,2 @@
+/build
+/internal/web/static
--- a/22
+++ b/22
@ -0,0 +1,22 @@
+FROM  golang:1.23-alpine AS build
+
+ADD . /app
+WORKDIR /app
+
+ARG TARGETARCH
+ARG TARGETOS
+
+RUN apk add --no-cache make npm
+RUN make deps
+RUN make BUILD_ARCH="$TARGETARCH" BUILD_OS="$TARGETOS" build
+
+FROM alpine:latest
+
+RUN apk add --no-cache ca-certificates
+
+WORKDIR /data
+COPY --from=build /app/build/beerpong-elo /app/beerpong-elo
+
+EXPOSE 3000
+
+CMD [ "/app/beerpong-elo" ] 
--- a/44
+++ b/44
@ -0,0 +1,44 @@
+BINARY = beerpong-elo
+BUILD_DIR = build
+BUILD_ARCH = $(shell go env GOARCH)
+BUILD_OS = $(shell go env GOOS)
+DOCKER_BUILD_FLAGS = 
+DOCKER_BUILD_PLATFORM = linux/amd64,linux/arm64,linux/arm32v6,linux/arm32v7
+DOCKER_BUILD_TAG = djeeberjr/beerpong-elo
+DIST_DIR = static
+EMBED_DIR = internal/web/static
+
+.PHONY: all
+all: clean build
+
+.PHONY:build
+build: $(BUILD_DIR)/$(BINARY) 
+
+$(BUILD_DIR)/$(BINARY): $(EMBED_DIR) $(shell find . -name '*.go')
+	GOARCH=$(BUILD_ARCH) GOOS=$(BUILD_OS) go build -o $(BUILD_DIR)/$(BINARY) cmd/beerpong-elo.go
+
+$(EMBED_DIR): $(BUILD_DIR)/$(DIST_DIR)
+	cp -r $(BUILD_DIR)/$(DIST_DIR) $(EMBED_DIR)
+
+$(BUILD_DIR)/$(DIST_DIR):
+	cd web/ && npm run build && mkdir ../$(BUILD_DIR) && cp -r dist/ ../$(BUILD_DIR)/$(DIST_DIR)
+
+.PHONY: deps
+deps: 
+	cd web/ && npm ci
+
+.PHONY:clean
+clean:
+	rm -rf $(BUILD_DIR) $(EMBED_DIR)
+
+.PHONY: test
+test:
+	go test ./...
+
+.PHONY: docker-push
+docker-push:
+	docker buildx build $(DOCKER_BUILD_FLAGS) --platform $(DOCKER_BUILD_PLATFORM) -t $(DOCKER_BUILD_TAG) . --push
+
+.PHONY: docker-local
+docker-local: 
+	docker buildx build $(DOCKER_BUILD_FLAGS) -t $(DOCKER_BUILD_TAG) . --load
--- a/README.md
+++ b/README.md
@ -0,0 +1,12 @@
+# Beerpong Elo
+
+An ELO system for 2v2 beerpong with web interface and graphql api. Using Svelte 5 for the frontend.
+
+# Building
+Requires go
+
+`make build`
+
+## Docker
+
+Building the docker image: `make docker` and `make docker-local`.  
--- a/cmd/beerpong-elo.go
+++ b/cmd/beerpong-elo.go
@ -0,0 +1,39 @@
+package main
+
+import (
+	beerpongelo "git.kapelle.org/niklas/beerpong-elo/internal"
+	"github.com/alexflint/go-arg"
+)
+
+type args struct {
+	DBHost     string `arg:"--db-endpoint,required,env:DB_HOST" help:"IP or hostname  of the DB" placeholder:"DB_HOST"`
+	DBUsername string `arg:"--db-username,required,env:DB_USERNAME" help:"Username for the DB" placeholder:"DB_USERNAME"`
+	DBPassword string `arg:"--db-password,required,env:DB_PASSWORD" help:"Password for the DB" placeholder:"DB_PASSWORD"`
+	DBName     string `arg:"--db-name,required,env:DB_NAME" help:"Name of the DB" placeholder:"DB_NAME"`
+	Address    string `arg:"--address,env:ADDRESS" default:":3000" help:"What address to listen on" placeholder:"ADDRESS"`
+	Import     string `arg:"--import" help:"Import a json file and exit" placeholder:"data.json"`
+}
+
+func (args) Version() string {
+	return "beerpong-elo v0.1"
+}
+
+func main() {
+	var args args
+	arg.MustParse(&args)
+
+  config := beerpongelo.Config{
+		DBHost:     args.DBHost,
+		DBUsername: args.DBUsername,
+		DBPassword: args.DBPassword,
+		DBName:     args.DBName,
+		Address:    args.Address,
+  }
+
+  if args.Import != "" {
+    beerpongelo.Import(config,args.Import)
+    return
+  }
+
+  beerpongelo.Start(config)
+}
--- a/go.mod
+++ b/go.mod
@ -0,0 +1,17 @@
+module git.kapelle.org/niklas/beerpong-elo
+
+go 1.22.6
+
+require github.com/alexflint/go-arg v1.5.1
+
+require (
+	filippo.io/edwards25519 v1.1.0 // indirect
+	github.com/alexflint/go-scalar v1.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/go-sql-driver/mysql v1.8.1 // indirect
+	github.com/graphql-go/graphql v0.8.1 // indirect
+	github.com/graphql-go/handler v0.2.4 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
--- a/go.sum
+++ b/go.sum
@ -0,0 +1,26 @@
+filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
+filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
+github.com/alexflint/go-arg v1.5.1 h1:nBuWUCpuRy0snAG+uIJ6N0UvYxpxA0/ghA/AaHxlT8Y=
+github.com/alexflint/go-arg v1.5.1/go.mod h1:A7vTJzvjoaSTypg4biM5uYNTkJ27SkNTArtYXnlqVO8=
+github.com/alexflint/go-scalar v1.2.0 h1:WR7JPKkeNpnYIOfHRa7ivM21aWAdHD0gEWHCx+WQBRw=
+github.com/alexflint/go-scalar v1.2.0/go.mod h1:LoFvNMqS1CPrMVltza4LvnGKhaSpc3oyLEBUZVhhS2o=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
+github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
+github.com/graphql-go/graphql v0.8.1 h1:p7/Ou/WpmulocJeEx7wjQy611rtXGQaAcXGqanuMMgc=
+github.com/graphql-go/graphql v0.8.1/go.mod h1:nKiHzRM0qopJEwCITUuIsxk9PlVlwIiiI8pnJEhordQ=
+github.com/graphql-go/handler v0.2.4 h1:gz9q11TUHPNUpqzV8LMa+rkqM5NUuH/nkE3oF2LS3rI=
+github.com/graphql-go/handler v0.2.4/go.mod h1:gsQlb4gDvURR0bgN8vWQEh+s5vJALM2lYL3n3cf6OxQ=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0 h1:hjy8E9ON/egN1tAYqKb61G10WtihqetD4sz2H+8nIeA=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
--- a/internal/beerpong-elo.go
+++ b/internal/beerpong-elo.go
@ -0,0 +1,71 @@
+package beerpongelo
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+	"os"
+
+	"git.kapelle.org/niklas/beerpong-elo/internal/model"
+	"git.kapelle.org/niklas/beerpong-elo/internal/repo"
+	"git.kapelle.org/niklas/beerpong-elo/internal/web"
+)
+
+type Config struct {
+	DBHost     string
+	DBUsername string
+	DBPassword string
+	DBName     string
+	Address    string
+}
+
+func Start(config Config) {
+	repo, err := repo.NewSQLRepo(config.DBHost, config.DBUsername, config.DBPassword, config.DBName)
+
+	if err != nil {
+		log.Fatalf("Failed to start server: %s", err)
+	}
+
+	mux := web.CreateWebserver(repo)
+
+	http.ListenAndServe(config.Address, mux)
+}
+
+func Import(config Config, file string) {
+	repo, err := repo.NewSQLRepo(config.DBHost, config.DBUsername, config.DBPassword, config.DBName)
+
+	if err != nil {
+		log.Fatalf("Failed to import file %s: %s", file, err)
+	}
+
+	controller := newController(repo)
+	err = loadFromFile(controller, file)
+
+	if err != nil {
+		log.Fatalf("Failed to import file %s: %s", file, err)
+	}
+}
+
+func loadFromFile(c Controller, path string) error {
+	content, err := os.ReadFile(path)
+
+	if err != nil {
+		return err
+	}
+
+	var payload []model.Game
+	err = json.Unmarshal(content, &payload)
+	if err != nil {
+		return err
+	}
+
+	for _, game := range payload {
+		_, err = c.AddGame(game)
+		if err != nil {
+			return err
+		}
+	}
+
+	log.Printf("Imported %d games", len(payload))
+	return nil
+}
--- a/internal/controller.go
+++ b/internal/controller.go
@ -0,0 +1,142 @@
+package beerpongelo
+
+import (
+	"math"
+
+	"git.kapelle.org/niklas/beerpong-elo/internal/model"
+	"git.kapelle.org/niklas/beerpong-elo/internal/repo"
+)
+
+type Controller struct {
+	repo repo.Repo
+}
+
+func newController(repo repo.Repo) Controller {
+	return Controller{
+		repo: repo,
+	}
+}
+
+func (c *Controller) AddGame(game model.Game) (model.GameID, error) {
+	parsedGame := model.Game{
+		Added:    game.Added,
+		Score:    game.Score,
+		Overtime: game.Overtime,
+	}
+
+	author, err := c.repo.GetOrCreatePlayerID(string(game.Author))
+	if err != nil {
+		return "", err
+	}
+	parsedGame.Author = author
+
+	t0p0, err := c.repo.GetOrCreatePlayerID(string(game.Team0Player0))
+	if err != nil {
+		return "", err
+	}
+	parsedGame.Team0Player0 = t0p0
+
+	t0p1, err := c.repo.GetOrCreatePlayerID(string(game.Team0Player1))
+	if err != nil {
+		return "", err
+	}
+	parsedGame.Team0Player1 = t0p1
+
+	t1p0, err := c.repo.GetOrCreatePlayerID(string(game.Team1Player0))
+	if err != nil {
+		return "", err
+	}
+	parsedGame.Team1Player0 = t1p0
+
+	t1p1, err := c.repo.GetOrCreatePlayerID(string(game.Team1Player1))
+	if err != nil {
+		return "", err
+	}
+	parsedGame.Team1Player1 = t1p1
+
+	id, err := c.repo.AddGame(parsedGame)
+	if err != nil {
+		return "", err
+	}
+
+	parsedGame.ID = id
+
+  err = c.createGameResult(parsedGame)
+
+  if err != nil {
+    return "", err
+  }
+
+	return id, nil
+}
+
+func (c *Controller) createGameResult(game model.Game) error {
+	t0p0, err := c.repo.GetPlayer(game.Team0Player0)
+	if err != nil {
+		return err
+	}
+	t0p1, err := c.repo.GetPlayer(game.Team0Player1)
+	if err != nil {
+		return err
+	}
+	t1p0, err := c.repo.GetPlayer(game.Team1Player0)
+	if err != nil {
+		return err
+	}
+	t1p1, err := c.repo.GetPlayer(game.Team1Player1)
+	if err != nil {
+		return err
+	}
+
+	newT0p0, newT0p1, newT1p0, newT1p1 := NewRating(float64(t0p0.Elo), float64(t0p1.Elo), float64(t1p0.Elo), float64(t1p1.Elo), game.Score)
+
+	t0p0Result := model.GameResult{
+		Game:     game.ID,
+		Player:   t0p0.ID,
+		StartElo: t0p0.Elo,
+		EndElo:   int(math.Round(newT0p0)),
+	}
+
+	t0p1Result := model.GameResult{
+		Game:     game.ID,
+		Player:   t0p1.ID,
+		StartElo: t0p1.Elo,
+		EndElo:   int(math.Round(newT0p1)),
+	}
+
+	t1p0Result := model.GameResult{
+		Game:     game.ID,
+		Player:   t1p0.ID,
+		StartElo: t1p0.Elo,
+		EndElo:   int(math.Round(newT1p0)),
+	}
+
+	t1p1Result := model.GameResult{
+		Game:     game.ID,
+		Player:   t1p1.ID,
+		StartElo: t1p1.Elo,
+		EndElo:   int(math.Round(newT1p1)),
+	}
+
+  _,err = c.repo.AddGameResult(t0p0Result)
+  if err != nil{
+    return err
+  }
+  
+  _,err = c.repo.AddGameResult(t0p1Result)
+  if err != nil{
+    return err
+  }
+  
+  _,err = c.repo.AddGameResult(t1p0Result)
+  if err != nil{
+    return err
+  }
+  
+  _,err = c.repo.AddGameResult(t1p1Result)
+  if err != nil{
+    return err
+  }
+
+	return nil
+}
--- a/internal/elo.go
+++ b/internal/elo.go
@ -0,0 +1,52 @@
+package beerpongelo
+
+import (
+	"math"
+)
+
+func winProbPlayer(p, e1, e2 float64) float64 {
+	const MAGIC float64 = 500
+
+	lhs := 1 / (1 + math.Pow(10., (p-e1)/MAGIC))
+	rhs := 1 / (1 + math.Pow(10., (p-e2)/MAGIC))
+	return (lhs + rhs) / 2.
+}
+
+func NewRating(t0p0, t0p1, t1p0, t1p1 float64, score int) (float64, float64, float64, float64) {
+	const K float64 = 50
+	const SCORE_BIAS float64 = 1
+	const SCORE_SCALE float64 = 0.4
+	const MAX_SCORE float64 = 10
+
+	et0p0 := winProbPlayer(t0p0, t1p0, t1p1)
+	et0p1 := winProbPlayer(t0p1, t1p0, t1p1)
+	et1p0 := winProbPlayer(t1p0, t0p0, t0p1)
+	et1p1 := winProbPlayer(t1p1, t0p0, t0p1)
+
+	et0 := (et0p0 + et0p1) / 2.
+	et1 := (et1p0 + et1p1) / 2.
+
+	ct0p0 := t0p0 / (t0p0 + t0p1)
+	ct0p1 := t0p1 / (t0p0 + t0p1)
+	ct1p0 := t1p0 / (t1p0 + t1p1)
+	ct1p1 := t1p1 / (t1p0 + t1p1)
+
+	var st0 float64
+	var st1 float64
+	if score > 0 {
+		st0 = 1
+		st1 = 0
+	} else {
+		st0 = 0
+		st1 = 1
+	}
+
+	scoreMod := SCORE_SCALE * math.Log(math.Abs(float64(score))+SCORE_BIAS) / (math.Log(MAX_SCORE) + SCORE_BIAS)
+
+	newt0p0 := t0p0 + K*scoreMod*((st0*ct0p0)-(et0*ct0p0))
+	newt0p1 := t0p1 + K*scoreMod*((st0*ct0p1)-(et0*ct0p1))
+	newt1p0 := t1p0 + K*scoreMod*((st1*ct1p0)-(et1*ct1p0))
+	newt1p1 := t1p1 + K*scoreMod*((st1*ct1p1)-(et1*ct1p1))
+
+	return newt0p0, newt0p1, newt1p0, newt1p1
+}
--- a/internal/model/game.go
+++ b/internal/model/game.go
@ -0,0 +1,33 @@
+package model
+
+import (
+	"fmt"
+	"time"
+)
+
+type GameID string
+
+type Game struct {
+	ID           GameID    `json:"id"`
+	Added        time.Time `json:"added"`
+	Author       PlayerID  `json:"author"`
+	Team0Player0 PlayerID  `json:"t0p0"`
+	Team0Player1 PlayerID  `json:"t0p1"`
+	Team1Player0 PlayerID  `json:"t1p0"`
+	Team1Player1 PlayerID  `json:"t1p1"`
+	Score        int       `json:"score"`
+	Overtime     bool      `jsone:"ot"`
+}
+
+func (id *GameID) Scan(src any) error {
+	switch v := src.(type) {
+	case int64:
+		*id = GameID(fmt.Sprintf("%d", v))
+    return nil
+	case string:
+		*id = GameID(v)
+		return nil
+	default:
+		return fmt.Errorf("unsupported type %T for GameID", src)
+	}
+}
--- a/internal/model/gameResult.go
+++ b/internal/model/gameResult.go
@ -0,0 +1,26 @@
+package model
+
+import "fmt"
+
+type GameResultID string
+
+type GameResult struct {
+	ID       GameResultID
+	Game     GameID
+	Player   PlayerID
+	StartElo int
+	EndElo   int
+}
+
+func (id *GameResultID) Scan(src any) error {
+	switch v := src.(type) {
+	case int64:
+		*id = GameResultID(fmt.Sprintf("%d", v)) // Convert int64 to string and assign it
+		return nil
+	case string:
+		*id = GameResultID(v)
+		return nil
+	default:
+		return fmt.Errorf("unsupported type %T for GameResultID", src)
+	}
+}
--- a/internal/model/player.go
+++ b/internal/model/player.go
@ -0,0 +1,31 @@
+package model
+
+import "fmt"
+
+type PlayerID string
+
+type Player struct {
+	ID  PlayerID
+  Name string
+	Elo int
+}
+
+func NewPlayer(name string) Player {
+	return Player{
+    Name: name,
+		Elo: 1000,
+	}
+}
+
+func (id *PlayerID) Scan(src any) error {
+	switch v := src.(type) {
+	case int64:
+		*id = PlayerID(fmt.Sprintf("%d", v)) // Convert int64 to string and assign it
+		return nil
+	case string:
+		*id = PlayerID(v)
+		return nil
+	default:
+		return fmt.Errorf("unsupported type %T for PlayerID", src)
+	}
+}
--- a/internal/repo/repo.go
+++ b/internal/repo/repo.go
@ -0,0 +1,40 @@
+package repo
+
+import (
+	model "git.kapelle.org/niklas/beerpong-elo/internal/model"
+)
+
+type Repo interface {
+	// Add a new game to the repo. ID needs to be nil on argument. PlayerID are fetched beforehand.
+	AddGame(model.Game) (model.GameID, error)
+
+	// Get a game by ID. Returns nil if not found.
+	GetGame(model.GameID) (*model.Game, error)
+
+	// Get ID of a player. Creates one if not found.
+	GetOrCreatePlayerID(string) (model.PlayerID, error)
+
+	// Get player by id. Returns nil if not found.
+	GetPlayer(model.PlayerID) (*model.Player, error)
+
+	// Adds a game result. ID needs to be nil on argument.
+	AddGameResult(model.GameResult) (model.GameResultID, error)
+
+	// Get a game result by ID. Returns nil if not found.
+	GetGameResult(model.GameResultID) (*model.GameResult, error)
+
+	// Get a game result for a player in a game
+	GetGameResultForPlayerAndGame(model.GameID, model.PlayerID) (*model.GameResult, error)
+
+  // Get all game results for a player
+	GetGameResultsForPlayer(model.PlayerID) ([]*model.GameResult, error)
+
+	// Get games for a player
+	GetGamesForPlayer(model.PlayerID) ([]*model.Game, error)
+
+  // Get all players
+  GetPlayers() ([]*model.Player, error)
+
+  // Get all games
+  GetGames() ([]*model.Game, error)
+}
--- a/internal/repo/sqlRepo.go
+++ b/internal/repo/sqlRepo.go
@ -0,0 +1,279 @@
+package repo
+
+import (
+	"database/sql"
+	"fmt"
+	"time"
+
+	"git.kapelle.org/niklas/beerpong-elo/internal/model"
+	_ "github.com/go-sql-driver/mysql"
+)
+
+type SQLRepo struct {
+	db *sql.DB
+}
+
+func NewSQLRepo(host, username, password, dbName string) (Repo, error) {
+	db, err := sql.Open("mysql", fmt.Sprintf("%s:%s@tcp(%s)/%s?parseTime=true", username, password, host, dbName))
+	if err != nil {
+		return nil, err
+	}
+
+	db.SetConnMaxLifetime(time.Minute * 3)
+	db.SetMaxOpenConns(10)
+	db.SetMaxIdleConns(10)
+
+	return &SQLRepo{
+		db: db,
+	}, nil
+}
+
+func (s *SQLRepo) AddGame(game model.Game) (model.GameID, error) {
+	stmt, err := s.db.Prepare("INSERT INTO Games(added,score,overtime,author,team0player0,team0player1,team1player0,team1player1) VALUES (?,?,?,?,?,?,?,?)")
+	if err != nil {
+		return "", err
+	}
+
+	res, err := stmt.Exec(game.Added, game.Score, game.Overtime, game.Author, game.Team0Player0, game.Team0Player1, game.Team1Player0, game.Team1Player1)
+	if err != nil {
+		return "", err
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return "", err
+	}
+
+	var gameID model.GameID
+	gameID.Scan(id)
+
+	return gameID, nil
+}
+
+func (s *SQLRepo) AddGameResult(gameResult model.GameResult) (model.GameResultID, error) {
+	stms, err := s.db.Prepare("INSERT INTO GameResults(game,player,startElo,endElo) VALUES (?,?,?,?)")
+	if err != nil {
+		return "", err
+	}
+
+	res, err := stms.Exec(gameResult.Game, gameResult.Player, gameResult.StartElo, gameResult.EndElo)
+	if err != nil {
+		return "", err
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return "", err
+	}
+
+	var gameResultID model.GameResultID
+	gameResultID.Scan(id)
+
+	return gameResultID, nil
+}
+
+func (s *SQLRepo) GetGame(id model.GameID) (*model.Game, error) {
+	rows := s.db.QueryRow("SELECT id,added, score,overtime,author,team0player0,team0player1,team1player0,team1player1 FROM Games WHERE id = ? ", id)
+
+	var game model.Game
+
+	if err := rows.Scan(&game.ID, &game.Added, &game.Score, &game.Overtime, &game.Author, &game.Team0Player0, &game.Team0Player1, &game.Team1Player0, &game.Team1Player1); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &game, nil
+}
+
+func (s *SQLRepo) GetGameResult(id model.GameResultID) (*model.GameResult, error) {
+	rows := s.db.QueryRow("SELECT game,player,startElo,endElo FROM GameResults WHERE id = ? ", id)
+
+	var gameResult model.GameResult
+	gameResult.ID = id
+
+	if err := rows.Scan(&gameResult.Game, &gameResult.Player, &gameResult.StartElo, &gameResult.EndElo); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &gameResult, nil
+}
+
+func (s *SQLRepo) playerWithNameExists(name string) (*model.PlayerID, error) {
+	rows := s.db.QueryRow("SELECT id FROM Players WHERE name = ?", name)
+
+	var id model.PlayerID
+
+	if err := rows.Scan(&id); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &id, nil
+}
+
+func (s *SQLRepo) GetOrCreatePlayerID(name string) (model.PlayerID, error) {
+	foundID, err := s.playerWithNameExists(name)
+	if err != nil {
+		return "", err
+	}
+
+	if foundID != nil {
+		return *foundID, nil
+	}
+
+	stmt, err := s.db.Prepare("INSERT INTO Players(name,elo) VALUES (?,?)")
+	if err != nil {
+		return "", err
+	}
+
+	newPlayer := model.NewPlayer(name)
+
+	res, err := stmt.Exec(newPlayer.Name, newPlayer.Elo)
+	if err != nil {
+		return "", err
+	}
+
+	id, err := res.LastInsertId()
+	if err != nil {
+		return "", err
+	}
+
+	var playerID model.PlayerID
+	playerID.Scan(id)
+
+	return playerID, nil
+}
+
+func (s *SQLRepo) GetPlayer(id model.PlayerID) (*model.Player, error) {
+	rows := s.db.QueryRow("SELECT name,elo from Players WHERE id = ?", id)
+
+	var player model.Player
+	player.ID = id
+
+	if err := rows.Scan(&player.Name, &player.Elo); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &player, nil
+}
+
+func (s *SQLRepo) GetGamesForPlayer(id model.PlayerID) ([]*model.Game, error) {
+	rows, err := s.db.Query(`
+  SELECT id,added, score,overtime,author,team0player0,team0player1,team1player0,team1player1 
+  FROM Games
+  WHERE team0player0 = ? OR team0player1 = ? OR team1player0 = ? OR team1player1 = ?
+  `, id, id, id, id)
+
+	if err != nil {
+		return nil, err
+	}
+
+	defer rows.Close()
+
+	rtn := []*model.Game{}
+
+	for rows.Next() {
+		var game model.Game
+		err = rows.Scan(&game.ID, &game.Added, &game.Score, &game.Overtime, &game.Author, &game.Team0Player0, &game.Team0Player1, &game.Team1Player0, &game.Team1Player1)
+
+		if err != nil {
+			return nil, err
+		}
+
+		rtn = append(rtn, &game)
+	}
+
+	return rtn, nil
+}
+
+func (s *SQLRepo) GetGameResultForPlayerAndGame(gameID model.GameID, playerID model.PlayerID) (*model.GameResult, error) {
+	rows := s.db.QueryRow("SELECT id,game,player,startElo,endElo FROM GameResults WHERE game = ? AND player = ? ", gameID, playerID)
+
+	var gameResult model.GameResult
+
+	if err := rows.Scan(&gameResult.ID, &gameResult.Game, &gameResult.Player, &gameResult.StartElo, &gameResult.EndElo); err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return &gameResult, nil
+}
+
+func (s *SQLRepo) GetGameResultsForPlayer(id model.PlayerID) ([]*model.GameResult, error) {
+	rows, err := s.db.Query("SELECT id,game,player,startElo,endElo FROM GameResults WHERE player = ? ", id)
+
+	if err != nil {
+		return nil, err
+	}
+
+	rtn := []*model.GameResult{}
+
+	for rows.Next() {
+		var gameResult model.GameResult
+
+		err = rows.Scan(&gameResult.ID, &gameResult.Game, &gameResult.Player, &gameResult.StartElo, &gameResult.EndElo)
+		if err != nil {
+			return nil, err
+		}
+
+		rtn = append(rtn, &gameResult)
+	}
+
+	return rtn, nil
+}
+
+func (s *SQLRepo) GetPlayers() ([]*model.Player, error) {
+	rows, err := s.db.Query("SELECT id, name, elo FROM Players")
+	if err != nil {
+		return nil, err
+	}
+
+	rtn := []*model.Player{}
+
+	for rows.Next() {
+		var player model.Player
+
+		err = rows.Scan(&player.ID, &player.Name, &player.Elo)
+		if err != nil {
+			return nil, err
+		}
+
+		rtn = append(rtn, &player)
+	}
+
+	return rtn, nil
+}
+
+func (s *SQLRepo) GetGames() ([]*model.Game, error) {
+	rows, err := s.db.Query("SELECT id,added, score,overtime,author,team0player0,team0player1,team1player0,team1player1 FROM Games")
+	if err != nil {
+		return nil, err
+	}
+
+	rtn := []*model.Game{}
+
+	for rows.Next() {
+		var game model.Game
+		err = rows.Scan(&game.ID, &game.Added, &game.Score, &game.Overtime, &game.Author, &game.Team0Player0, &game.Team0Player1, &game.Team1Player0, &game.Team1Player1)
+
+		if err != nil {
+			return nil, err
+		}
+
+		rtn = append(rtn, &game)
+	}
+
+	return rtn, nil
+}
--- a/internal/repo/sqlSchema.sql
+++ b/internal/repo/sqlSchema.sql
@ -0,0 +1,44 @@
+CREATE TABLE Players (
+    id INT AUTO_INCREMENT PRIMARY KEY, 
+    name VARCHAR(255) NOT NULL,
+    elo INT
+);
+
+CREATE TABLE Games (
+    id INT AUTO_INCREMENT PRIMARY KEY, 
+    added DATETIME NOT NULL,
+    score INT NOT NULL,
+    overtime BOOL NOT NULL,
+    author INT,
+    team0player0 INT,
+    team0player1 INT,
+    team1player0 INT,
+    team1player1 INT,                    
+    FOREIGN KEY (author) REFERENCES Players(id) on DELETE SET NULL,
+    FOREIGN KEY (team0player0) REFERENCES Players(id) ON DELETE SET NULL,
+    FOREIGN KEY (team0player1) REFERENCES Players(id) ON DELETE SET NULL,
+    FOREIGN KEY (team1player0) REFERENCES Players(id) ON DELETE SET NULL,
+    FOREIGN KEY (team1player1) REFERENCES Players(id) ON DELETE SET NULL
+);
+
+CREATE TABLE GameResults (
+  id INT AUTO_INCREMENT PRIMARY KEY,
+  game INT,
+  player INT,
+  startElo INT,
+  endElo INT,
+  FOREIGN KEY (game) REFERENCES Games(id) on DELETE SET NULL,
+  FOREIGN KEY (player) REFERENCES Players(id) on DELETE SET NULL
+)
+
+DELIMITER $$
+CREATE TRIGGER UpdateCurrentELO
+AFTER INSERT ON GameResults
+FOR EACH ROW
+BEGIN
+    UPDATE Players
+    SET elo = NEW.endElo
+    WHERE id = NEW.player;
+END$$
+
+DELIMITER ;
--- a/internal/web/gqlSchema.go
+++ b/internal/web/gqlSchema.go
@ -0,0 +1,369 @@
+package web
+
+import (
+	"log"
+
+	"git.kapelle.org/niklas/beerpong-elo/internal/model"
+	"git.kapelle.org/niklas/beerpong-elo/internal/repo"
+	"github.com/graphql-go/graphql"
+)
+
+func createShema(repo repo.Repo) graphql.Schema {
+
+	player := graphql.NewObject(graphql.ObjectConfig{
+		Name:        "Player",
+		Description: "A player. Can also be authors of games",
+		Fields: graphql.Fields{
+			"ID": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.ID),
+			},
+			"name": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.String),
+			},
+			"elo": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.Int),
+			},
+
+			// Field "games" added below
+			// Field "history" added below
+		},
+	})
+
+	game := graphql.NewObject(graphql.ObjectConfig{
+		Name:        "Game",
+		Description: "A game played",
+		Fields: graphql.Fields{
+			"id": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.ID),
+			},
+			"added": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.DateTime),
+			},
+			"overtime": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.Boolean),
+			},
+			"score": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.Int),
+			},
+			"author": &graphql.Field{
+				Type: graphql.NewNonNull(player),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					game, ok := p.Source.(*model.Game)
+					if !ok {
+						log.Printf("Can't get source for field 'author' on 'Game' is %v", p.Source)
+						return nil, nil
+					}
+
+					player, err := repo.GetPlayer(game.Author)
+					if err != nil {
+						return nil, err
+					}
+
+					return player, nil
+				},
+			},
+			"team0player0": &graphql.Field{
+				Type: graphql.NewNonNull(player),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					game, ok := p.Source.(*model.Game)
+					if !ok {
+						log.Printf("Can't get source for field 'team0player0' on 'Game' is %v", p.Source)
+						return nil, nil
+					}
+
+					player, err := repo.GetPlayer(game.Team0Player0)
+					if err != nil {
+						return nil, err
+					}
+
+					return player, nil
+				},
+			},
+			"team0player1": &graphql.Field{
+				Type: graphql.NewNonNull(player),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					game, ok := p.Source.(*model.Game)
+					if !ok {
+						log.Printf("Can't get source for field 'team0player1' on 'Game' is %v", p.Source)
+						return nil, nil
+					}
+
+					player, err := repo.GetPlayer(game.Team0Player1)
+					if err != nil {
+						return nil, err
+					}
+
+					return player, nil
+				},
+			},
+			"team1player0": &graphql.Field{
+				Type: graphql.NewNonNull(player),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					game, ok := p.Source.(*model.Game)
+					if !ok {
+						log.Printf("Can't get source for field 'team1player0' on 'Game' is %v", p.Source)
+						return nil, nil
+					}
+
+					player, err := repo.GetPlayer(game.Team1Player0)
+					if err != nil {
+						return nil, err
+					}
+
+					return player, nil
+				},
+			},
+			"team1player1": &graphql.Field{
+				Type: graphql.NewNonNull(player),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					game, ok := p.Source.(*model.Game)
+					if !ok {
+						log.Printf("Can't get source for field 'team1player1' on 'Game' is %v", p.Source)
+						return nil, nil
+					}
+
+					player, err := repo.GetPlayer(game.Team1Player1)
+					if err != nil {
+						return nil, err
+					}
+
+					return player, nil
+				},
+			},
+		},
+	})
+
+	player.AddFieldConfig("games", &graphql.Field{
+		Type: graphql.NewNonNull(graphql.NewList(game)),
+		Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+			player, ok := p.Source.(*model.Player)
+
+			if !ok {
+				log.Printf("Can't get source for field 'games' on 'Player' is %v", p.Source)
+				return nil, nil
+			}
+
+			games, err := repo.GetGamesForPlayer(player.ID)
+
+			if err != nil {
+				return nil, err
+			}
+
+			return games, nil
+		},
+	})
+
+	gameResult := graphql.NewObject(graphql.ObjectConfig{
+		Name:        "GameResult",
+		Description: "The ELO change for a player in a game",
+		Fields: graphql.Fields{
+			"id": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.ID),
+			},
+			"player": &graphql.Field{
+				Type: player,
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					gameResult, ok := p.Source.(*model.GameResult)
+					if !ok {
+						log.Printf("Can't get source for field 'player' on 'GameResult' is %v", p.Source)
+						return nil, nil
+					}
+
+					player, err := repo.GetPlayer(gameResult.Player)
+					if err != nil {
+						return nil, err
+					}
+
+					return player, nil
+				},
+			},
+			"game": &graphql.Field{
+				Type: graphql.NewNonNull(game),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					gameResult, ok := p.Source.(*model.GameResult)
+					if !ok {
+						log.Printf("Can't get source for field 'game' on 'GameResult' is %v", p.Source)
+						return nil, nil
+					}
+
+					game, err := repo.GetGame(gameResult.Game)
+					if err != nil {
+						return nil, err
+					}
+
+					return game, nil
+				},
+			},
+			"startElo": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.Int),
+			},
+			"endElo": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.Int),
+			},
+			"delta": &graphql.Field{
+				Type: graphql.NewNonNull(graphql.Int),
+				Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+					gameResult, ok := p.Source.(*model.GameResult)
+					if !ok {
+						log.Printf("Can't get source for field 'delta' on 'GameResult' is %v", p.Source)
+						return nil, nil
+					}
+
+					delta := gameResult.EndElo - gameResult.StartElo
+					return delta, nil
+				},
+			},
+		},
+	})
+
+	player.AddFieldConfig("history", &graphql.Field{
+		Type: graphql.NewNonNull(graphql.NewList(gameResult)),
+		Args: graphql.FieldConfigArgument{
+			"game": &graphql.ArgumentConfig{
+				Type:        graphql.ID,
+				Description: "Filter by Game ID",
+			},
+		},
+		Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+			player, ok := p.Source.(*model.Player)
+			if !ok {
+				log.Printf("Can't get source from field 'history' on 'player' is %v", p.Source)
+				return nil, nil
+			}
+
+			if p.Args["game"] != nil {
+				// Find result for single game
+				gameID, ok := p.Args["game"].(string)
+				if !ok {
+					log.Printf("Failed to parse 'game' at field 'history' on 'player' is %v", p.Args["game"])
+					return nil, nil
+				}
+
+				gameResult, err := repo.GetGameResultForPlayerAndGame(model.GameID(gameID), player.ID)
+				if err != nil {
+					return nil, err
+				}
+
+				return []*model.GameResult{gameResult}, nil
+			}
+
+			// Find all gameResults for a player
+
+			gameResults, err := repo.GetGameResultsForPlayer(player.ID)
+			if err != nil {
+				return nil, err
+			}
+
+			return gameResults, nil
+		},
+	})
+
+	queryFields := graphql.Fields{
+		"player": &graphql.Field{
+			Type:        player,
+			Description: "Get player by ID",
+			Args: graphql.FieldConfigArgument{
+				"id": &graphql.ArgumentConfig{
+					Type: graphql.NewNonNull(graphql.ID),
+				},
+			},
+			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+				id, ok := p.Args["id"].(string)
+				if !ok {
+					log.Printf("Failed to parse ID at player: %v", p.Args["id"])
+					return nil, nil
+				}
+
+				player, err := repo.GetPlayer(model.PlayerID(id))
+				if err != nil {
+					return nil, err
+				}
+
+				return player, nil
+			},
+		},
+		"game": &graphql.Field{
+			Type:        game,
+			Description: "Get game by ID",
+			Args: graphql.FieldConfigArgument{
+				"id": &graphql.ArgumentConfig{
+					Type: graphql.NewNonNull(graphql.ID),
+				},
+			},
+			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+				id, ok := p.Args["id"].(string)
+				if !ok {
+					log.Printf("Failed to parse ID at game: %v", p.Args["id"])
+					return nil, nil
+				}
+
+				game, err := repo.GetGame(model.GameID(id))
+				if err != nil {
+					return nil, err
+				}
+
+				return game, nil
+			},
+		},
+		"gameResult": &graphql.Field{
+			Type:        gameResult,
+			Description: "Result of a game on a players ELO",
+			Args: graphql.FieldConfigArgument{
+				"id": &graphql.ArgumentConfig{
+					Type: graphql.NewNonNull(graphql.ID),
+				},
+			},
+			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+				id, ok := p.Args["id"].(string)
+				if !ok {
+					log.Printf("Failed to parse ID at gameResult: %v", p.Args["id"])
+					return nil, nil
+				}
+
+				gameResult, err := repo.GetGameResult(model.GameResultID(id))
+				if err != nil {
+					return nil, err
+				}
+
+				return gameResult, nil
+			},
+		},
+		"players": &graphql.Field{
+			Type:        graphql.NewNonNull(graphql.NewList(player)),
+			Description: "Get all players",
+			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+				players, err := repo.GetPlayers()
+				if err != nil {
+					return nil, err
+				}
+
+				return players, nil
+			},
+		},
+		"games": &graphql.Field{
+			Type:        graphql.NewNonNull(graphql.NewList(game)),
+			Description: "Get all games",
+			Resolve: func(p graphql.ResolveParams) (interface{}, error) {
+				games, err := repo.GetGames()
+				if err != nil {
+					return nil, err
+				}
+
+				return games, nil
+			},
+		},
+	}
+
+	querySchema := graphql.ObjectConfig{
+		Name:   "Query",
+		Fields: queryFields,
+	}
+
+	schemaConfig := graphql.SchemaConfig{Query: graphql.NewObject(querySchema)}
+	schema, err := graphql.NewSchema(schemaConfig)
+	if err != nil {
+		log.Fatalf("failed to create new schema, error: %v", err)
+	}
+
+	return schema
+}
--- a/internal/web/staticFiles.go
+++ b/internal/web/staticFiles.go
@ -0,0 +1,28 @@
+package web
+
+import (
+	"embed"
+	"io/fs"
+	"net/http"
+	"os"
+)
+
+//go:embed static/*
+var staticFiles embed.FS
+
+type spaFileSystem struct {
+	root http.FileSystem
+}
+
+func (spa *spaFileSystem) Open(name string) (http.File, error) {
+	f, err := spa.root.Open(name)
+	if os.IsNotExist(err) {
+		return spa.root.Open("index.html")
+	}
+	return f, err
+}
+
+func initStatic(mux *http.ServeMux) {
+	staticFS, _ := fs.Sub(staticFiles, "static")
+	mux.Handle("/", http.FileServer(&spaFileSystem{http.FS(staticFS)}))
+}
--- a/internal/web/web.go
+++ b/internal/web/web.go
@ -0,0 +1,24 @@
+package web
+
+import (
+	"net/http"
+
+	"git.kapelle.org/niklas/beerpong-elo/internal/repo"
+	"github.com/graphql-go/handler"
+)
+
+func CreateWebserver(repo repo.Repo) *http.ServeMux {
+	router := http.NewServeMux()
+	schema := createShema(repo)
+
+	gqlHandler := handler.New(&handler.Config{
+		Schema:   &schema,
+		Pretty:   true,
+		GraphiQL: true,
+	})
+
+	router.Handle("/graphql", gqlHandler)
+  initStatic(router)
+
+	return router
+}
--- a/web/.gitignore
+++ b/web/.gitignore
@ -0,0 +1,24 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
--- a/web/codegen.ts
+++ b/web/codegen.ts
@ -0,0 +1,19 @@
+
+import type { CodegenConfig } from '@graphql-codegen/cli';
+
+const config: CodegenConfig = {
+  overwrite: true,
+  schema: "http://localhost:8080/graphql",
+  documents: "./src/**/*.svelte",
+  generates: {
+    "src/gql/": {
+      preset: "client",
+      plugins: [],
+      config:{
+        useTypeImports: true,
+      },
+    }
+  }
+};
+
+export default config;
--- a/web/index.html
+++ b/web/index.html
@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <!-- <link rel="icon" type="image/svg+xml" href="/vite.svg" /> -->
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Beerpong</title>
+  </head>
+  <body>
+    <div id="app"></div>
+    <script type="module" src="/src/main.ts"></script>
+  </body>
+</html>
--- a/web/package-lock.json
+++ b/web/package-lock.json
--- a/web/package.json
+++ b/web/package.json
@ -0,0 +1,32 @@
+{
+  "name": "beerpong-elo",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview",
+    "check": "svelte-check --tsconfig ./tsconfig.app.json && tsc -p tsconfig.node.json",
+    "codegen": "graphql-codegen --config codegen.ts"
+  },
+  "devDependencies": {
+    "@graphql-codegen/cli": "5.0.3",
+    "@graphql-codegen/client-preset": "4.5.1",
+    "@sveltejs/vite-plugin-svelte": "^5.0.3",
+    "@tsconfig/svelte": "^5.0.4",
+    "autoprefixer": "^10.4.20",
+    "graphql": "^16.10.0",
+    "graphql-request": "^7.1.2",
+    "postcss": "^8.4.49",
+    "svelte": "^5.15.0",
+    "svelte-check": "^4.1.1",
+    "svelte2tsx": "^0.7.33",
+    "tailwindcss": "^3.4.17",
+    "typescript": "~5.6.2",
+    "vite": "^6.0.5"
+  },
+  "dependencies": {
+    "@dvcol/svelte-simple-router": "^1.9.1"
+  }
+}
--- a/web/postcss.config.js
+++ b/web/postcss.config.js
@ -0,0 +1,6 @@
+export default {
+  plugins: {
+    tailwindcss: {},
+    autoprefixer: {},
+  },
+}
--- a/web/src/App.svelte
+++ b/web/src/App.svelte
@ -0,0 +1,33 @@
+<script lang="ts">
+    import Game from "./pages/Game.svelte";
+    import Player from "./pages/Player.svelte";
+    import { RouterView } from "@dvcol/svelte-simple-router/components";
+    import type {
+        Route,
+        RouterOptions,
+    } from "@dvcol/svelte-simple-router/models";
+
+    const routes: Readonly<Route[]> = [
+        {
+            name: "game",
+            path: "/game/:{string}:id",
+            component: Game,
+        },
+        {
+            name: "player",
+            path: "/player/:{string}:id",
+            component: Player,
+        },
+    ];
+
+    const options: RouterOptions = {
+        routes,
+    };
+</script>
+
+<main>
+    <RouterView {options} />
+</main>
+
+<style>
+</style>
--- a/web/src/app.css
+++ b/web/src/app.css
@ -0,0 +1,3 @@
+@tailwind base;
+@tailwind components;
+@tailwind utilities;
--- a/web/src/lib/Graph.svelte
+++ b/web/src/lib/Graph.svelte
@ -0,0 +1,67 @@
+<script lang="ts">
+    let {
+        data,
+        width,
+        height,
+    }: { data: Array<number>; width: number; height: number } = $props();
+
+    const lineStep = 1;
+    const labelStep = 2;
+
+    let minValue = $derived(Math.min(...data));
+    let maxValue = $derived(Math.max(...data));
+
+    const xScale = (i: number) => (i / (data.length - 1)) * width;
+    const yScale = (d: number) =>
+        height - ((d - minValue) / (maxValue - minValue)) * height;
+
+    let dPath = $derived(
+        data
+            .map((d, i) => `${i === 0 ? "M" : "L"}${xScale(i)},${yScale(d)}`)
+            .join(" "),
+    );
+
+    let lines: Array<number> = $derived(
+        Array.from(
+            { length: Math.ceil((maxValue - minValue) / lineStep) + 1 },
+            (_, i) => minValue + i * lineStep,
+        ),
+    );
+</script>
+
+<svg
+    xmlns="http://www.w3.org/2000/svg"
+    {width}
+    {height}
+    viewBox={`0 0 ${width} ${height}`}
+    class="border-solid border-black border-2"
+>
+    <g>
+        {#each lines as line}
+            <line
+                x1="0"
+                y1={yScale(line)}
+                x2={width}
+                y2={yScale(line)}
+                stroke="#e0e0e0"
+                stroke-width="1"
+                data-foo={line}
+            />
+            {#if line % labelStep === 0}
+                <text
+                    x="30"
+                    y={yScale(line) - 2}
+                    font-size="10"
+                    text-anchor="end"
+                    fill="black"
+                    data-foo={line}
+                >
+                    {line}
+                </text>
+            {/if}
+        {/each}
+
+        <!-- Data line -->
+        <path d={dPath} fill="none" stroke="orange" stroke-width="2" />
+    </g>
+</svg>
--- a/web/src/main.ts
+++ b/web/src/main.ts
@ -0,0 +1,9 @@
+import { mount } from 'svelte'
+import './app.css'
+import App from './App.svelte'
+
+const app = mount(App, {
+  target: document.getElementById('app')!,
+})
+
+export default app
--- a/web/src/pages/Game.svelte
+++ b/web/src/pages/Game.svelte
@ -0,0 +1,160 @@
+<script lang="ts">
+    import { request } from "graphql-request";
+    import { graphql } from "./../gql";
+    import { onMount } from "svelte";
+    import type { GetGameQuery } from "../gql/graphql";
+    import { useRoute, link } from "@dvcol/svelte-simple-router/router";
+
+    const doc = graphql(`
+        query getGame($gameID: ID!) {
+            game(id: $gameID) {
+                added
+                overtime
+                score
+                author {
+                    ID
+                    name
+                }
+                team0player0 {
+                    ID
+                    name
+                    history(game: $gameID) {
+                        startElo
+                        delta
+                    }
+                }
+                team0player1 {
+                    ID
+                    name
+                    history(game: $gameID) {
+                        startElo
+                        delta
+                    }
+                }
+                team1player0 {
+                    ID
+                    name
+                    history(game: $gameID) {
+                        startElo
+                        delta
+                    }
+                }
+                team1player1 {
+                    ID
+                    name
+                    history(game: $gameID) {
+                        startElo
+                        delta
+                    }
+                }
+            }
+        }
+    `);
+
+    interface Player {
+        name: string;
+        id: string;
+        startElo: number;
+        delta: number;
+    }
+
+    interface Team {
+        name: string;
+        p0: Player;
+        p1: Player;
+    }
+
+    let loading = $state(true);
+    let errorState = $state(false);
+    let data: GetGameQuery | undefined = $state();
+
+    onMount(() => {
+        const idParam = useRoute().location?.params.id;
+        if (typeof idParam == "string") {
+            request(window.location.origin + "/graphql", doc, {
+                gameID: idParam,
+            })
+                .then((e) => {
+                    data = e;
+                    loading = false;
+                })
+                .catch((e) => {
+                    console.error(e);
+                    errorState = true;
+                    loading = false;
+                });
+        } else {
+            loading = false;
+        }
+    });
+</script>
+
+<h1 class="text-4xl">Game</h1>
+
+{#if loading}
+    Loading...
+{:else if errorState}
+    An error occurred
+{:else if data == null || data.game == null}
+    Game not found.
+{:else}
+    {#snippet player(p: Player)}
+        <a use:link href="/player/{p.id}"
+            >{p.name} ({p.startElo}  <span class="{p.delta<0?"text-red-700":"text-green-700"}" >{(p.delta<0?"":"+")+p.delta}</span>)
+        </a>
+    {/snippet}
+
+    {#snippet team(team: Team)}
+        <div class="mx-3">
+            <h2 class="text-xl">{team.name}</h2>
+            <div>
+                {@render player(team.p0)}
+            </div>
+            <div>
+                {@render player(team.p1)}
+            </div>
+        </div>
+    {/snippet}
+
+    Added by: {data.game.author.name} on {data.game.added}
+
+    <div class="flex justify-between">
+        {@render team({
+            name: "Team 1",
+            p0: {
+                id: data.game.team0player0.ID,
+                name: data.game.team0player0.name,
+                startElo: data.game.team0player0.history[0]!.startElo,
+                delta: data.game.team0player0.history[0]!.delta,
+            },
+            p1: {
+                id: data.game.team0player1.ID,
+                name: data.game.team0player1.name,
+                startElo: data.game.team0player1.history[0]!.startElo,
+                delta: data.game.team0player1.history[0]!.delta,
+            },
+        })}
+        <div class="text-2xl flex items-center">
+            <div>
+                <span>{data.game.score > 0 ? data.game.score : 0}</span>
+                -
+                <span>{data.game.score < 0 ? -data.game.score : 0}</span>
+            </div>
+        </div>
+        {@render team({
+            name: "Team 1",
+            p0: {
+                id: data.game.team1player0.ID,
+                name: data.game.team1player0.name,
+                startElo: data.game.team1player0.history[0]!.startElo,
+                delta: data.game.team1player0.history[0]!.delta,
+            },
+            p1: {
+                id: data.game.team1player1.ID,
+                name: data.game.team1player1.name,
+                startElo: data.game.team1player1.history[0]!.startElo,
+                delta: data.game.team1player1.history[0]!.delta,
+            },
+        })}
+    </div>
+{/if}
--- a/web/src/pages/Player.svelte
+++ b/web/src/pages/Player.svelte
@ -0,0 +1,62 @@
+<script lang="ts">
+    import { request } from "graphql-request";
+    import { graphql } from "./../gql";
+    import { onMount } from "svelte";
+    import type { GetPlayerQuery } from "../gql/graphql";
+    import { useRoute } from "@dvcol/svelte-simple-router/router";
+    import Graph from "../lib/Graph.svelte";
+
+    const doc = graphql(`
+        query getPlayer($playerID: ID!) {
+            player(id: $playerID) {
+                ID
+                name
+                elo
+                history {
+                    delta
+                    endElo
+                    game {
+                        id
+                    }
+                }
+            }
+        }
+    `);
+
+    let loading = $state(true);
+    let errorState = $state(false);
+    let data: GetPlayerQuery | undefined = $state();
+
+    onMount(() => {
+        const idParam = useRoute().location?.params.id;
+        if (typeof idParam == "string") {
+            request(window.location.origin + "/graphql", doc, {
+                playerID: idParam,
+            })
+                .then((e) => {
+                    data = e;
+                    loading = false;
+                })
+                .catch((e) => {
+                    console.error(e);
+                    errorState = true;
+                    loading = false;
+                });
+        } else {
+            loading = false;
+        }
+    });
+</script>
+
+{#if loading}
+    Loading...
+{:else if errorState}
+    An error occurred
+{:else if data == null || data.player == null}
+    Player not found.
+{:else}
+<div class="m-2">
+        <h1 class="text-2xl">{data.player.name} ({data.player.elo})</h1>
+        <Graph height={500} width={800} data={data.player.history.map((e) => e!.endElo)} />
+    </div>
+{/if}
--- a/web/src/vite-env.d.ts
+++ b/web/src/vite-env.d.ts
@ -0,0 +1,2 @@
+/// <reference types="svelte" />
+/// <reference types="vite/client" />
--- a/web/svelte.config.js
+++ b/web/svelte.config.js
@ -0,0 +1,7 @@
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte'
+
+export default {
+  // Consult https://svelte.dev/docs#compile-time-svelte-preprocess
+  // for more information about preprocessors
+  preprocess: vitePreprocess(),
+}
--- a/web/tailwind.config.js
+++ b/web/tailwind.config.js
@ -0,0 +1,12 @@
+/** @type {import('tailwindcss').Config} */
+export default {
+  content: [
+    "./index.html",
+    "./src/**/*.{svelte,js,ts,jsx,tsx}",
+  ],
+  theme: {
+    extend: {},
+  },
+  plugins: [],
+}
+
--- a/web/tsconfig.app.json
+++ b/web/tsconfig.app.json
@ -0,0 +1,20 @@
+{
+  "extends": "@tsconfig/svelte/tsconfig.json",
+  "compilerOptions": {
+    "target": "ESNext",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "resolveJsonModule": true,
+    /**
+     * Typecheck JS in `.svelte` and `.js` files by default.
+     * Disable checkJs if you'd like to use dynamic types in JS.
+     * Note that setting allowJs false does not prevent the use
+     * of JS in `.svelte` files.
+     */
+    "allowJs": true,
+    "checkJs": true,
+    "isolatedModules": true,
+    "moduleDetection": "force"
+  },
+  "include": ["src/**/*.ts", "src/**/*.js", "src/**/*.svelte"]
+}
--- a/web/tsconfig.json
+++ b/web/tsconfig.json
@ -0,0 +1,7 @@
+{
+  "files": [],
+  "references": [
+    { "path": "./tsconfig.app.json" },
+    { "path": "./tsconfig.node.json" }
+  ]
+}
--- a/web/tsconfig.node.json
+++ b/web/tsconfig.node.json
@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "target": "ES2022",
+    "lib": ["ES2023"],
+    "module": "ESNext",
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "isolatedModules": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}
--- a/web/vite.config.ts
+++ b/web/vite.config.ts
@ -0,0 +1,13 @@
+import { defineConfig } from 'vite'
+import { svelte } from '@sveltejs/vite-plugin-svelte'
+
+// https://vite.dev/config/
+export default defineConfig({
+  plugins: [svelte()],
+
+  server:{
+    proxy:{
+      "/graphql": "http://localhost:8080",
+    },
+  },
+})