feat: popok itegratio

README.md

@@ -125,6 +125,7 @@
         │   ├── bet_handler.go
         │   ├── handlers.go
         │   ├── notification_handler.go
+        │   ├── referal_handlers.go
         │   ├── ticket_handler.go
         │   ├── transaction_handler.go
         │   ├── user.go

cmd/main.go

@@ -17,6 +17,7 @@ import (
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/ticket"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/transaction"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/user"
+	virtualgameservice "github.com/SamuelTariku/FortuneBet-Backend/internal/services/virtualGame"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
 	httpserver "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server"
 	jwtutil "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/jwt"
@@ -65,14 +66,16 @@ func main() {
 
 	notificationRepo := repository.NewNotificationRepository(store)
 	referalRepo := repository.NewReferralRepository(store)
+	vitualGameRepo := repository.NewVirtualGameRepository(store)
 
 	notificationSvc := notificationservice.New(notificationRepo, logger, cfg)
 	referalSvc := referralservice.New(referalRepo, *walletSvc, store, cfg, logger)
+	virtualGameSvc := virtualgameservice.New(vitualGameRepo, *walletSvc, store, cfg, logger)
 
 	app := httpserver.NewApp(cfg.Port, v, authSvc, logger, jwtutil.JwtConfig{
 		JwtAccessKey:    cfg.JwtKey,
 		JwtAccessExpiry: cfg.AccessExpiry,
-	}, userSvc, ticketSvc, betSvc, walletSvc, transactionSvc, notificationSvc, referalSvc)
+	}, userSvc, ticketSvc, betSvc, walletSvc, transactionSvc, notificationSvc, referalSvc, virtualGameSvc)
 	logger.Info("Starting server", "port", cfg.Port)
 
 	if err := app.Run(); err != nil {

db/migrations/000004_virtual_game_Sessios.down.sql

@@ -0,0 +1,3 @@
+DROP TABLE IF EXISTS virtual_game_transactions;
+
+DROP TABLE IF EXISTS virtual_game_sessions;

db/migrations/000004_virtual_game_Sessios.up.sql

@@ -0,0 +1,29 @@
+CREATE TABLE virtual_game_sessions (
+    id BIGSERIAL PRIMARY KEY,
+    user_id BIGINT NOT NULL REFERENCES users(id),
+    game_id VARCHAR(50) NOT NULL,
+    session_token VARCHAR(255) NOT NULL UNIQUE,
+    currency VARCHAR(3) NOT NULL,
+    status VARCHAR(20) NOT NULL DEFAULT 'ACTIVE', -- ACTIVE, COMPLETED, FAILED
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    expires_at TIMESTAMP WITH TIME ZONE NOT NULL
+);
+
+CREATE TABLE virtual_game_transactions (
+    id BIGSERIAL PRIMARY KEY,
+    session_id BIGINT NOT NULL REFERENCES virtual_game_sessions(id),
+    user_id BIGINT NOT NULL REFERENCES users(id),
+    wallet_id BIGINT NOT NULL REFERENCES wallets(id),
+    transaction_type VARCHAR(20) NOT NULL,
+    amount BIGINT NOT NULL,
+    currency VARCHAR(3) NOT NULL,
+    external_transaction_id VARCHAR(100) NOT NULL UNIQUE, -- PopOK transaction ID
+    status VARCHAR(20) NOT NULL DEFAULT 'PENDING', -- PENDING, COMPLETED, FAILED
+    created_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE INDEX idx_virtual_game_sessions_user_id ON virtual_game_sessions(user_id);
+CREATE INDEX idx_virtual_game_transactions_session_id ON virtual_game_transactions(session_id);
+CREATE INDEX idx_virtual_game_transactions_user_id ON virtual_game_transactions(user_id);

db/query/virtual_games.sql

@@ -0,0 +1,33 @@
+-- name: CreateVirtualGameSession :one
+INSERT INTO virtual_game_sessions (
+    user_id, game_id, session_token, currency, status, expires_at
+) VALUES (
+    $1, $2, $3, $4, $5, $6
+) RETURNING id, user_id, game_id, session_token, currency, status, created_at, updated_at, expires_at;
+
+-- name: GetVirtualGameSessionByToken :one
+SELECT id, user_id, game_id, session_token, currency, status, created_at, updated_at, expires_at
+FROM virtual_game_sessions
+WHERE session_token = $1;
+
+-- name: UpdateVirtualGameSessionStatus :exec
+UPDATE virtual_game_sessions
+SET status = $2, updated_at = CURRENT_TIMESTAMP
+WHERE id = $1;
+
+-- name: CreateVirtualGameTransaction :one
+INSERT INTO virtual_game_transactions (
+    session_id, user_id, wallet_id, transaction_type, amount, currency, external_transaction_id, status
+) VALUES (
+    $1, $2, $3, $4, $5, $6, $7, $8
+) RETURNING id, session_id, user_id, wallet_id, transaction_type, amount, currency, external_transaction_id, status, created_at, updated_at;
+
+-- name: GetVirtualGameTransactionByExternalID :one
+SELECT id, session_id, user_id, wallet_id, transaction_type, amount, currency, external_transaction_id, status, created_at, updated_at
+FROM virtual_game_transactions
+WHERE external_transaction_id = $1;
+
+-- name: UpdateVirtualGameTransactionStatus :exec
+UPDATE virtual_game_transactions
+SET status = $2, updated_at = CURRENT_TIMESTAMP
+WHERE id = $1;

gen/db/models.go

@@ -189,6 +189,32 @@ type User struct {
 	ReferredBy    pgtype.Text
 }
 
+type VirtualGameSession struct {
+	ID           int64
+	UserID       int64
+	GameID       string
+	SessionToken string
+	Currency     string
+	Status       string
+	CreatedAt    pgtype.Timestamptz
+	UpdatedAt    pgtype.Timestamptz
+	ExpiresAt    pgtype.Timestamptz
+}
+
+type VirtualGameTransaction struct {
+	ID                    int64
+	SessionID             int64
+	UserID                int64
+	WalletID              int64
+	TransactionType       string
+	Amount                int64
+	Currency              string
+	ExternalTransactionID string
+	Status                string
+	CreatedAt             pgtype.Timestamptz
+	UpdatedAt             pgtype.Timestamptz
+}
+
 type Wallet struct {
 	ID           int64
 	Balance      int64

gen/db/referal.sql.go

@@ -184,8 +184,8 @@ WHERE referrer_id = $1
 type GetReferralStatsRow struct {
 	TotalReferrals     int64
 	CompletedReferrals int64
-	TotalRewardEarned  float64
+	TotalRewardEarned  interface{}
-	PendingRewards     float64
+	PendingRewards     interface{}
 }
 
 func (q *Queries) GetReferralStats(ctx context.Context, referrerID string) (GetReferralStatsRow, error) {

gen/db/virtual_games.sql.go

@@ -0,0 +1,180 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+// source: virtual_games.sql
+
+package dbgen
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const CreateVirtualGameSession = `-- name: CreateVirtualGameSession :one
+INSERT INTO virtual_game_sessions (
+    user_id, game_id, session_token, currency, status, expires_at
+) VALUES (
+    $1, $2, $3, $4, $5, $6
+) RETURNING id, user_id, game_id, session_token, currency, status, created_at, updated_at, expires_at
+`
+
+type CreateVirtualGameSessionParams struct {
+	UserID       int64
+	GameID       string
+	SessionToken string
+	Currency     string
+	Status       string
+	ExpiresAt    pgtype.Timestamptz
+}
+
+func (q *Queries) CreateVirtualGameSession(ctx context.Context, arg CreateVirtualGameSessionParams) (VirtualGameSession, error) {
+	row := q.db.QueryRow(ctx, CreateVirtualGameSession,
+		arg.UserID,
+		arg.GameID,
+		arg.SessionToken,
+		arg.Currency,
+		arg.Status,
+		arg.ExpiresAt,
+	)
+	var i VirtualGameSession
+	err := row.Scan(
+		&i.ID,
+		&i.UserID,
+		&i.GameID,
+		&i.SessionToken,
+		&i.Currency,
+		&i.Status,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.ExpiresAt,
+	)
+	return i, err
+}
+
+const CreateVirtualGameTransaction = `-- name: CreateVirtualGameTransaction :one
+INSERT INTO virtual_game_transactions (
+    session_id, user_id, wallet_id, transaction_type, amount, currency, external_transaction_id, status
+) VALUES (
+    $1, $2, $3, $4, $5, $6, $7, $8
+) RETURNING id, session_id, user_id, wallet_id, transaction_type, amount, currency, external_transaction_id, status, created_at, updated_at
+`
+
+type CreateVirtualGameTransactionParams struct {
+	SessionID             int64
+	UserID                int64
+	WalletID              int64
+	TransactionType       string
+	Amount                int64
+	Currency              string
+	ExternalTransactionID string
+	Status                string
+}
+
+func (q *Queries) CreateVirtualGameTransaction(ctx context.Context, arg CreateVirtualGameTransactionParams) (VirtualGameTransaction, error) {
+	row := q.db.QueryRow(ctx, CreateVirtualGameTransaction,
+		arg.SessionID,
+		arg.UserID,
+		arg.WalletID,
+		arg.TransactionType,
+		arg.Amount,
+		arg.Currency,
+		arg.ExternalTransactionID,
+		arg.Status,
+	)
+	var i VirtualGameTransaction
+	err := row.Scan(
+		&i.ID,
+		&i.SessionID,
+		&i.UserID,
+		&i.WalletID,
+		&i.TransactionType,
+		&i.Amount,
+		&i.Currency,
+		&i.ExternalTransactionID,
+		&i.Status,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const GetVirtualGameSessionByToken = `-- name: GetVirtualGameSessionByToken :one
+SELECT id, user_id, game_id, session_token, currency, status, created_at, updated_at, expires_at
+FROM virtual_game_sessions
+WHERE session_token = $1
+`
+
+func (q *Queries) GetVirtualGameSessionByToken(ctx context.Context, sessionToken string) (VirtualGameSession, error) {
+	row := q.db.QueryRow(ctx, GetVirtualGameSessionByToken, sessionToken)
+	var i VirtualGameSession
+	err := row.Scan(
+		&i.ID,
+		&i.UserID,
+		&i.GameID,
+		&i.SessionToken,
+		&i.Currency,
+		&i.Status,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+		&i.ExpiresAt,
+	)
+	return i, err
+}
+
+const GetVirtualGameTransactionByExternalID = `-- name: GetVirtualGameTransactionByExternalID :one
+SELECT id, session_id, user_id, wallet_id, transaction_type, amount, currency, external_transaction_id, status, created_at, updated_at
+FROM virtual_game_transactions
+WHERE external_transaction_id = $1
+`
+
+func (q *Queries) GetVirtualGameTransactionByExternalID(ctx context.Context, externalTransactionID string) (VirtualGameTransaction, error) {
+	row := q.db.QueryRow(ctx, GetVirtualGameTransactionByExternalID, externalTransactionID)
+	var i VirtualGameTransaction
+	err := row.Scan(
+		&i.ID,
+		&i.SessionID,
+		&i.UserID,
+		&i.WalletID,
+		&i.TransactionType,
+		&i.Amount,
+		&i.Currency,
+		&i.ExternalTransactionID,
+		&i.Status,
+		&i.CreatedAt,
+		&i.UpdatedAt,
+	)
+	return i, err
+}
+
+const UpdateVirtualGameSessionStatus = `-- name: UpdateVirtualGameSessionStatus :exec
+UPDATE virtual_game_sessions
+SET status = $2, updated_at = CURRENT_TIMESTAMP
+WHERE id = $1
+`
+
+type UpdateVirtualGameSessionStatusParams struct {
+	ID     int64
+	Status string
+}
+
+func (q *Queries) UpdateVirtualGameSessionStatus(ctx context.Context, arg UpdateVirtualGameSessionStatusParams) error {
+	_, err := q.db.Exec(ctx, UpdateVirtualGameSessionStatus, arg.ID, arg.Status)
+	return err
+}
+
+const UpdateVirtualGameTransactionStatus = `-- name: UpdateVirtualGameTransactionStatus :exec
+UPDATE virtual_game_transactions
+SET status = $2, updated_at = CURRENT_TIMESTAMP
+WHERE id = $1
+`
+
+type UpdateVirtualGameTransactionStatusParams struct {
+	ID     int64
+	Status string
+}
+
+func (q *Queries) UpdateVirtualGameTransactionStatus(ctx context.Context, arg UpdateVirtualGameTransactionStatusParams) error {
+	_, err := q.db.Exec(ctx, UpdateVirtualGameTransactionStatus, arg.ID, arg.Status)
+	return err
+}

internal/config/config.go

@@ -6,6 +6,7 @@ import (
 	"os"
 	"strconv"
 
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/domain"
 	customlogger "github.com/SamuelTariku/FortuneBet-Backend/internal/logger"
 	"github.com/joho/godotenv"
 )
@@ -20,6 +21,10 @@ var (
 	ErrInvalidLevel            = errors.New("invalid log level")
 	ErrInvalidEnv              = errors.New("env not set or invalid")
 	ErrInvalidSMSAPIKey        = errors.New("SMS API key is invalid")
+	ErrInvalidPopOKClientID    = errors.New("PopOK client ID is invalid")
+	ErrInvalidPopOKSecretKey   = errors.New("PopOK secret key is invalid")
+	ErrInvalidPopOKBaseURL     = errors.New("PopOK base URL is invalid")
+	ErrInvalidPopOKCallbackURL = errors.New("PopOK callback URL is invalid")
 )
 
 type Config struct {
@@ -34,6 +39,7 @@ type Config struct {
 	AFRO_SMS_SENDER_NAME           string
 	AFRO_SMS_RECEIVER_PHONE_NUMBER string
 	ADRO_SMS_HOST_URL              string
+	PopOK                          domain.PopOKConfig
 }
 
 func NewConfig() (*Config, error) {
@@ -125,6 +131,31 @@ func (c *Config) loadEnv() error {
 	if c.ADRO_SMS_HOST_URL == "" {
 		c.ADRO_SMS_HOST_URL = "https://api.afrosms.com"
 	}
+	popOKClientID := os.Getenv("POPOK_CLIENT_ID")
+	if popOKClientID == "" {
+		return ErrInvalidPopOKClientID
+	}
 
+	popOKSecretKey := os.Getenv("POPOK_SECRET_KEY")
+	if popOKSecretKey == "" {
+		return ErrInvalidPopOKSecretKey
+	}
+
+	popOKBaseURL := os.Getenv("POPOK_BASE_URL")
+	if popOKBaseURL == "" {
+		return ErrInvalidPopOKBaseURL
+	}
+
+	popOKCallbackURL := os.Getenv("POPOK_CALLBACK_URL")
+	if popOKCallbackURL == "" {
+		return ErrInvalidPopOKCallbackURL
+	}
+
+	c.PopOK = domain.PopOKConfig{
+		ClientID:    popOKClientID,
+		SecretKey:   popOKSecretKey,
+		BaseURL:     popOKBaseURL,
+		CallbackURL: popOKCallbackURL,
+	}
 	return nil
 }

internal/domain/virtual_game.go

@@ -0,0 +1,55 @@
+package domain
+
+import (
+	"time"
+)
+
+type VirtualGameSession struct {
+	ID           int64     `json:"id"`
+	UserID       int64     `json:"user_id"`
+	GameID       string    `json:"game_id"`
+	SessionToken string    `json:"session_token"`
+	Currency     string    `json:"currency"`
+	Status       string    `json:"status"` // ACTIVE, COMPLETED, FAILED
+	CreatedAt    time.Time `json:"created_at"`
+	UpdatedAt    time.Time `json:"updated_at"`
+	ExpiresAt    time.Time `json:"expires_at"`
+}
+
+type VirtualGameTransaction struct {
+	ID                    int64     `json:"id"`
+	SessionID             int64     `json:"session_id"`
+	UserID                int64     `json:"user_id"`
+	WalletID              int64     `json:"wallet_id"`
+	TransactionType       string    `json:"transaction_type"` // BET, WIN, REFUND, JACKPOT_WIN
+	Amount                int64     `json:"amount"`
+	Currency              string    `json:"currency"`
+	ExternalTransactionID string    `json:"external_transaction_id"`
+	Status                string    `json:"status"` // PENDING, COMPLETED, FAILED
+	CreatedAt             time.Time `json:"created_at"`
+	UpdatedAt             time.Time `json:"updated_at"`
+}
+
+type CreateVirtualGameSession struct {
+	UserID   int64
+	GameID   string
+	Currency string
+	Mode     string // REAL, DEMO
+}
+
+type PopOKConfig struct {
+	ClientID    string
+	SecretKey   string
+	BaseURL     string
+	CallbackURL string
+}
+
+type PopOKCallback struct {
+	TransactionID string  `json:"transaction_id"`
+	SessionID     string  `json:"session_id"`
+	Type          string  `json:"type"` // BET, WIN, REFUND, JACKPOT_WIN
+	Amount        float64 `json:"amount"`
+	Currency      string  `json:"currency"`
+	Timestamp     int64   `json:"timestamp"`
+	Signature     string  `json:"signature"` // HMAC-SHA256 signature for verification
+}

internal/repository/referal.go

@@ -96,8 +96,8 @@ func (r *ReferralRepo) GetReferralStats(ctx context.Context, userID string) (*do
 	return &domain.ReferralStats{
 		TotalReferrals:     int(stats.TotalReferrals),
 		CompletedReferrals: int(stats.CompletedReferrals),
-		TotalRewardEarned:  float64(stats.TotalRewardEarned),
+		TotalRewardEarned:  stats.TotalRewardEarned.(float64),
-		PendingRewards:     float64(stats.PendingRewards),
+		PendingRewards:     stats.PendingRewards.(float64),
 	}, nil
 }
 

internal/repository/virtual_game.go

@@ -0,0 +1,114 @@
+package repository
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+
+	dbgen "github.com/SamuelTariku/FortuneBet-Backend/gen/db"
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/domain"
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+type VirtualGameRepository interface {
+	CreateVirtualGameSession(ctx context.Context, session *domain.VirtualGameSession) error
+	GetVirtualGameSessionByToken(ctx context.Context, token string) (*domain.VirtualGameSession, error)
+	UpdateVirtualGameSessionStatus(ctx context.Context, id int64, status string) error
+	CreateVirtualGameTransaction(ctx context.Context, tx *domain.VirtualGameTransaction) error
+	GetVirtualGameTransactionByExternalID(ctx context.Context, externalID string) (*domain.VirtualGameTransaction, error)
+	UpdateVirtualGameTransactionStatus(ctx context.Context, id int64, status string) error
+}
+
+type VirtualGameRepo struct {
+	store *Store
+}
+
+func NewVirtualGameRepository(store *Store) VirtualGameRepository {
+	return &VirtualGameRepo{store: store}
+}
+
+func (r *VirtualGameRepo) CreateVirtualGameSession(ctx context.Context, session *domain.VirtualGameSession) error {
+	params := dbgen.CreateVirtualGameSessionParams{
+		UserID:       session.UserID,
+		GameID:       session.GameID,
+		SessionToken: session.SessionToken,
+		Currency:     session.Currency,
+		Status:       session.Status,
+		ExpiresAt:    pgtype.Timestamptz{Time: session.ExpiresAt, Valid: true},
+	}
+	_, err := r.store.queries.CreateVirtualGameSession(ctx, params)
+	return err
+}
+
+func (r *VirtualGameRepo) GetVirtualGameSessionByToken(ctx context.Context, token string) (*domain.VirtualGameSession, error) {
+	dbSession, err := r.store.queries.GetVirtualGameSessionByToken(ctx, token)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &domain.VirtualGameSession{
+		ID:           dbSession.ID,
+		UserID:       dbSession.UserID,
+		GameID:       dbSession.GameID,
+		SessionToken: dbSession.SessionToken,
+		Currency:     dbSession.Currency,
+		Status:       dbSession.Status,
+		CreatedAt:    dbSession.CreatedAt.Time,
+		UpdatedAt:    dbSession.UpdatedAt.Time,
+		ExpiresAt:    dbSession.ExpiresAt.Time,
+	}, nil
+}
+
+func (r *VirtualGameRepo) UpdateVirtualGameSessionStatus(ctx context.Context, id int64, status string) error {
+	return r.store.queries.UpdateVirtualGameSessionStatus(ctx, dbgen.UpdateVirtualGameSessionStatusParams{
+		ID:     id,
+		Status: status,
+	})
+}
+
+func (r *VirtualGameRepo) CreateVirtualGameTransaction(ctx context.Context, tx *domain.VirtualGameTransaction) error {
+	params := dbgen.CreateVirtualGameTransactionParams{
+		SessionID:             tx.SessionID,
+		UserID:                tx.UserID,
+		WalletID:              tx.WalletID,
+		TransactionType:       tx.TransactionType,
+		Amount:                tx.Amount,
+		Currency:              tx.Currency,
+		ExternalTransactionID: tx.ExternalTransactionID,
+		Status:                tx.Status,
+	}
+	_, err := r.store.queries.CreateVirtualGameTransaction(ctx, params)
+	return err
+}
+
+func (r *VirtualGameRepo) GetVirtualGameTransactionByExternalID(ctx context.Context, externalID string) (*domain.VirtualGameTransaction, error) {
+	dbTx, err := r.store.queries.GetVirtualGameTransactionByExternalID(ctx, externalID)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return &domain.VirtualGameTransaction{
+		ID:                    dbTx.ID,
+		SessionID:             dbTx.SessionID,
+		UserID:                dbTx.UserID,
+		WalletID:              dbTx.WalletID,
+		TransactionType:       dbTx.TransactionType,
+		Amount:                dbTx.Amount,
+		Currency:              dbTx.Currency,
+		ExternalTransactionID: dbTx.ExternalTransactionID,
+		Status:                dbTx.Status,
+		CreatedAt:             dbTx.CreatedAt.Time,
+		UpdatedAt:             dbTx.UpdatedAt.Time,
+	}, nil
+}
+
+func (r *VirtualGameRepo) UpdateVirtualGameTransactionStatus(ctx context.Context, id int64, status string) error {
+	return r.store.queries.UpdateVirtualGameTransactionStatus(ctx, dbgen.UpdateVirtualGameTransactionStatusParams{
+		ID:     id,
+		Status: status,
+	})
+}

internal/services/virtualGame/port.go

@@ -0,0 +1,12 @@
+package virtualgameservice
+
+import (
+	"context"
+
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/domain"
+)
+
+type VirtualGameService interface {
+	GenerateGameLaunchURL(ctx context.Context, userID int64, gameID, currency, mode string) (string, error)
+	HandleCallback(ctx context.Context, callback *domain.PopOKCallback) error
+}

internal/services/virtualGame/service.go

@@ -0,0 +1,169 @@
+package virtualgameservice
+
+import (
+	"context"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"log/slog"
+	"time"
+
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/config"
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/domain"
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/repository"
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
+	jwtutil "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/jwt"
+)
+
+type service struct {
+	repo      repository.VirtualGameRepository
+	walletSvc wallet.Service
+	store     *repository.Store
+	config    *config.Config
+	logger    *slog.Logger
+}
+
+func New(repo repository.VirtualGameRepository, walletSvc wallet.Service, store *repository.Store, cfg *config.Config, logger *slog.Logger) VirtualGameService {
+	return &service{
+		repo:      repo,
+		walletSvc: walletSvc,
+		store:     store,
+		config:    cfg,
+		logger:    logger,
+	}
+}
+
+func (s *service) GenerateGameLaunchURL(ctx context.Context, userID int64, gameID, currency, mode string) (string, error) {
+	user, err := s.store.GetUserByID(ctx, userID)
+	if err != nil {
+		s.logger.Error("Failed to get user", "userID", userID, "error", err)
+		return "", err
+	}
+
+	sessionToken := fmt.Sprintf("%d-%s-%d", userID, gameID, time.Now().UnixNano())
+	token, err := jwtutil.CreatePopOKJwt(
+		userID,
+		user.PhoneNumber,
+		currency,
+		"en",
+		mode,
+		sessionToken,
+		s.config.PopOK.SecretKey,
+		24*time.Hour,
+	)
+	if err != nil {
+		s.logger.Error("Failed to create PopOK JWT", "userID", userID, "error", err)
+		return "", err
+	}
+
+	params := fmt.Sprintf(
+		"client_id=%s&game_id=%s¤cy=%s&lang=en&mode=%s&token=%s",
+		s.config.PopOK.ClientID, gameID, currency, mode, token,
+	)
+	signature := s.generateSignature(params)
+	return fmt.Sprintf("%s/game/launch?%s&signature=%s", s.config.PopOK.BaseURL, params, signature), nil
+}
+
+func (s *service) HandleCallback(ctx context.Context, callback *domain.PopOKCallback) error {
+	s.logger.Info("Handling PopOK callback", "transactionID", callback.TransactionID, "type", callback.Type)
+
+	if !s.verifySignature(callback) {
+		s.logger.Error("Invalid callback signature", "transactionID", callback.TransactionID)
+		return errors.New("invalid signature")
+	}
+
+	existingTx, err := s.repo.GetVirtualGameTransactionByExternalID(ctx, callback.TransactionID)
+	if err != nil {
+		s.logger.Error("Failed to check existing transaction", "transactionID", callback.TransactionID, "error", err)
+		return err
+	}
+	if existingTx != nil {
+		s.logger.Warn("Transaction already processed", "transactionID", callback.TransactionID)
+		return nil // Idempotency
+	}
+
+	session, err := s.repo.GetVirtualGameSessionByToken(ctx, callback.SessionID)
+	if err != nil || session == nil {
+		s.logger.Error("Invalid or missing session", "sessionID", callback.SessionID, "error", err)
+		return errors.New("invalid session")
+	}
+
+	wallets, err := s.walletSvc.GetWalletsByUser(ctx, session.UserID)
+	if err != nil || len(wallets) == 0 {
+		s.logger.Error("Failed to get wallets or no wallet found", "userID", session.UserID, "error", err)
+		return errors.New("user has no wallet")
+	}
+
+	walletID := wallets[0].ID
+	amount := int64(callback.Amount * 100) // Convert to cents
+	transactionType := callback.Type
+
+	switch transactionType {
+	case "BET":
+		amount = -amount // Debit for bets
+	case "WIN", "JACKPOT_WIN", "REFUND":
+	default:
+		s.logger.Error("Unknown transaction type", "transactionID", callback.TransactionID, "type", transactionType)
+		return errors.New("unknown transaction type")
+	}
+
+	err = s.walletSvc.Add(ctx, walletID, domain.Currency(amount))
+	if err != nil {
+		s.logger.Error("Failed to update wallet", "walletID", walletID, "userID", session.UserID, "amount", amount, "error", err)
+		return err
+	}
+
+	// Record transaction
+	tx := &domain.VirtualGameTransaction{
+		SessionID:             session.ID,
+		UserID:                session.UserID,
+		WalletID:              walletID,
+		TransactionType:       transactionType,
+		Amount:                amount,
+		Currency:              callback.Currency,
+		ExternalTransactionID: callback.TransactionID,
+		Status:                "COMPLETED",
+		CreatedAt:             time.Now(),
+		UpdatedAt:             time.Now(),
+	}
+
+	if err := s.repo.CreateVirtualGameTransaction(ctx, tx); err != nil {
+		s.logger.Error("Failed to create transaction", "transactionID", callback.TransactionID, "error", err)
+		return err
+	}
+
+	s.logger.Info("Callback processed successfully", "transactionID", callback.TransactionID, "type", transactionType, "amount", callback.Amount)
+	return nil
+}
+
+func (s *service) generateSignature(params string) string {
+	h := hmac.New(sha256.New, []byte(s.config.PopOK.SecretKey))
+	h.Write([]byte(params))
+	return hex.EncodeToString(h.Sum(nil))
+}
+
+func (s *service) verifySignature(callback *domain.PopOKCallback) bool {
+	data, _ := json.Marshal(struct {
+		TransactionID string  `json:"transaction_id"`
+		SessionID     string  `json:"session_id"`
+		Type          string  `json:"type"`
+		Amount        float64 `json:"amount"`
+		Currency      string  `json:"currency"`
+		Timestamp     int64   `json:"timestamp"`
+	}{
+		TransactionID: callback.TransactionID,
+		SessionID:     callback.SessionID,
+		Type:          callback.Type,
+		Amount:        callback.Amount,
+		Currency:      callback.Currency,
+		Timestamp:     callback.Timestamp,
+	})
+
+	h := hmac.New(sha256.New, []byte(s.config.PopOK.SecretKey))
+	h.Write(data)
+	expected := hex.EncodeToString(h.Sum(nil))
+	return expected == callback.Signature
+}

internal/web_server/app.go

@@ -10,6 +10,7 @@ import (
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/ticket"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/transaction"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/user"
+	virtualgameservice "github.com/SamuelTariku/FortuneBet-Backend/internal/services/virtualGame"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
 	jwtutil "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/jwt"
 	customvalidator "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/validator"
@@ -28,6 +29,7 @@ type App struct {
 	authSvc           *authentication.Service
 	userSvc           *user.Service
 	betSvc            *bet.Service
+	virtualGameSvc    virtualgameservice.VirtualGameService
 	walletSvc         *wallet.Service
 	transactionSvc    *transaction.Service
 	ticketSvc         *ticket.Service
@@ -48,6 +50,7 @@ func NewApp(
 	transactionSvc *transaction.Service,
 	notidicationStore notificationservice.NotificationStore,
 	referralSvc referralservice.ReferralStore,
+	virtualGameSvc virtualgameservice.VirtualGameService,
 ) *App {
 	app := fiber.New(fiber.Config{
 		CaseSensitive:            true,
@@ -70,6 +73,7 @@ func NewApp(
 		NotidicationStore: notidicationStore,
 		referralSvc:       referralSvc,
 		Logger:            logger,
+		virtualGameSvc:    virtualGameSvc,
 	}
 
 	s.initAppRoutes()

internal/web_server/handlers/handlers.go

@@ -10,6 +10,7 @@ import (
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/ticket"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/transaction"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/user"
+	virtualgameservice "github.com/SamuelTariku/FortuneBet-Backend/internal/services/virtualGame"
 	"github.com/SamuelTariku/FortuneBet-Backend/internal/services/wallet"
 	jwtutil "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/jwt"
 	customvalidator "github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/validator"
@@ -24,13 +25,14 @@ type Handler struct {
 	transactionSvc  *transaction.Service
 	ticketSvc       *ticket.Service
 	betSvc          *bet.Service
+	virtualGameSvc  virtualgameservice.VirtualGameService
 	authSvc         *authentication.Service
 	jwtConfig       jwtutil.JwtConfig
 	validator       *customvalidator.CustomValidator
 }
 
 func New(logger *slog.Logger, notificationSvc notificationservice.NotificationStore, validator *customvalidator.CustomValidator, walletSvc *wallet.Service,
-	referralSvc referralservice.ReferralStore, userSvc *user.Service, transactionSvc *transaction.Service, ticketSvc *ticket.Service, betSvc *bet.Service, authSvc *authentication.Service, jwtConfig jwtutil.JwtConfig) *Handler {
+	referralSvc referralservice.ReferralStore, virtualGameSvc virtualgameservice.VirtualGameService, userSvc *user.Service, transactionSvc *transaction.Service, ticketSvc *ticket.Service, betSvc *bet.Service, authSvc *authentication.Service, jwtConfig jwtutil.JwtConfig) *Handler {
 	return &Handler{
 		logger:          logger,
 		notificationSvc: notificationSvc,
@@ -41,6 +43,7 @@ func New(logger *slog.Logger, notificationSvc notificationservice.NotificationSt
 		transactionSvc:  transactionSvc,
 		ticketSvc:       ticketSvc,
 		betSvc:          betSvc,
+		virtualGameSvc:  virtualGameSvc,
 		authSvc:         authSvc,
 		jwtConfig:       jwtConfig,
 	}

internal/web_server/handlers/virtual_games_hadlers.go

@@ -0,0 +1,83 @@
+package handlers
+
+import (
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/domain"
+	"github.com/SamuelTariku/FortuneBet-Backend/internal/web_server/response"
+	"github.com/gofiber/fiber/v2"
+)
+
+// LaunchVirtualGame godoc
+// @Summary Launch a PopOK virtual game
+// @Description Generates a URL to launch a PopOK game
+// @Tags virtual-game
+// @Accept json
+// @Produce json
+// @Security Bearer
+// @Param launch body launchVirtualGameReq true "Game launch details"
+// @Success 200 {object} launchVirtualGameRes
+// @Failure 400 {object} response.APIResponse
+// @Failure 401 {object} response.APIResponse
+// @Failure 500 {object} response.APIResponse
+// @Router /virtual-game/launch [post]
+func (h *Handler) LaunchVirtualGame(c *fiber.Ctx) error {
+	type launchVirtualGameReq struct {
+		GameID   string `json:"game_id" validate:"required" example:"crash_001"`
+		Currency string `json:"currency" validate:"required,len=3" example:"USD"`
+		Mode     string `json:"mode" validate:"required,oneof=REAL DEMO" example:"REAL"`
+	}
+
+	type launchVirtualGameRes struct {
+		LaunchURL string `json:"launch_url"`
+	}
+
+	userID, ok := c.Locals("user_id").(int64)
+	if !ok || userID == 0 {
+		h.logger.Error("Invalid user ID in context")
+		return fiber.NewError(fiber.StatusUnauthorized, "Invalid user identification")
+	}
+
+	var req launchVirtualGameReq
+	if err := c.BodyParser(&req); err != nil {
+		h.logger.Error("Failed to parse LaunchVirtualGame request", "error", err)
+		return fiber.NewError(fiber.StatusBadRequest, "Invalid request body")
+	}
+
+	if valErrs, ok := h.validator.Validate(c, req); !ok {
+		return response.WriteJSON(c, fiber.StatusBadRequest, "Invalid request", valErrs, nil)
+	}
+
+	url, err := h.virtualGameSvc.GenerateGameLaunchURL(c.Context(), userID, req.GameID, req.Currency, req.Mode)
+	if err != nil {
+		h.logger.Error("Failed to generate game launch URL", "userID", userID, "gameID", req.GameID, "error", err)
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to launch game")
+	}
+
+	res := launchVirtualGameRes{LaunchURL: url}
+	return response.WriteJSON(c, fiber.StatusOK, "Game launched successfully", res, nil)
+}
+
+// HandleVirtualGameCallback godoc
+// @Summary Handle PopOK game callback
+// @Description Processes callbacks from PopOK for game events
+// @Tags virtual-game
+// @Accept json
+// @Produce json
+// @Param callback body domain.PopOKCallback true "Callback data"
+// @Success 200 {object} response.APIResponse
+// @Failure 400 {object} response.APIResponse
+// @Failure 500 {object} response.APIResponse
+// @Router /virtual-game/callback [post]
+func (h *Handler) HandleVirtualGameCallback(c *fiber.Ctx) error {
+	var callback domain.PopOKCallback
+	if err := c.BodyParser(&callback); err != nil {
+		h.logger.Error("Failed to parse callback", "error", err)
+		return fiber.NewError(fiber.StatusBadRequest, "Invalid callback data")
+	}
+
+	if err := h.virtualGameSvc.HandleCallback(c.Context(), &callback); err != nil {
+		h.logger.Error("Failed to handle callback", "transactionID", callback.TransactionID, "error", err)
+		return fiber.NewError(fiber.StatusInternalServerError, "Failed to process callback")
+	}
+
+	return response.WriteJSON(c, fiber.StatusOK, "Callback processed successfully", nil, nil)
+}

internal/web_server/jwt/jwt.go

@@ -8,14 +8,11 @@ import (
 	"github.com/golang-jwt/jwt/v5"
 )
 
-//	type UserToken struct {
-//		UserId string
-//	}
 var (
 	ErrExpiredToken         = errors.New("token expired")
 	ErrMalformedToken       = errors.New("token malformed")
 	ErrTokenNotExpired      = errors.New("token not expired")
-	ErrRefreshTokenNotFound = errors.New("refresh token not found") // i.e login again
+	ErrRefreshTokenNotFound = errors.New("refresh token not found")
 )
 
 type UserClaim struct {
@@ -23,23 +20,61 @@ type UserClaim struct {
 	UserId int64
 	Role   domain.Role
 }
+
+type PopOKClaim struct {
+	jwt.RegisteredClaims
+	UserID    int64  `json:"user_id"`
+	Username  string `json:"username"`
+	Currency  string `json:"currency"`
+	Lang      string `json:"lang"`
+	Mode      string `json:"mode"`
+	SessionID string `json:"session_id"`
+}
+
 type JwtConfig struct {
 	JwtAccessKey    string
 	JwtAccessExpiry int
 }
 
 func CreateJwt(userId int64, Role domain.Role, key string, expiry int) (string, error) {
-	token := jwt.NewWithClaims(jwt.SigningMethodHS256, UserClaim{RegisteredClaims: jwt.RegisteredClaims{Issuer: "github.com/lafetz/snippitstash",
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, UserClaim{
+		RegisteredClaims: jwt.RegisteredClaims{
+			Issuer:    "github.com/lafetz/snippitstash",
 			IssuedAt:  jwt.NewNumericDate(time.Now()),
 			Audience:  jwt.ClaimStrings{"fortune.com"},
 			NotBefore: jwt.NewNumericDate(time.Now()),
-		ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(expiry) * time.Second))},
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(time.Duration(expiry) * time.Second)),
+		},
 		UserId: userId,
 		Role:   Role,
 	})
-	jwtToken, err := token.SignedString([]byte(key)) //
+	jwtToken, err := token.SignedString([]byte(key))
 	return jwtToken, err
 }
+
+func CreatePopOKJwt(userID int64, username, currency, lang, mode, sessionID, key string, expiry time.Duration) (string, error) {
+	token := jwt.NewWithClaims(jwt.SigningMethodHS256, PopOKClaim{
+		RegisteredClaims: jwt.RegisteredClaims{
+			Issuer:    "fortune-bet",
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+			Audience:  jwt.ClaimStrings{"popokgaming.com"},
+			NotBefore: jwt.NewNumericDate(time.Now()),
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(expiry)),
+		},
+		UserID:    userID,
+		Username:  username,
+		Currency:  currency,
+		Lang:      lang,
+		Mode:      mode,
+		SessionID: sessionID,
+	})
+	jwtToken, err := token.SignedString([]byte(key))
+	if err != nil {
+		return "", err
+	}
+	return jwtToken, nil
+}
+
 func ParseJwt(jwtToken string, key string) (*UserClaim, error) {
 	token, err := jwt.ParseWithClaims(jwtToken, &UserClaim{}, func(token *jwt.Token) (interface{}, error) {
 		return []byte(key), nil
@@ -56,5 +91,24 @@ func ParseJwt(jwtToken string, key string) (*UserClaim, error) {
 	if claims, ok := token.Claims.(*UserClaim); ok && token.Valid {
 		return claims, nil
 	}
+	return nil, errors.New("invalid token claims")
+}
+
+func ParsePopOKJwt(jwtToken string, key string) (*PopOKClaim, error) {
+	token, err := jwt.ParseWithClaims(jwtToken, &PopOKClaim{}, func(token *jwt.Token) (interface{}, error) {
+		return []byte(key), nil
+	})
+	if err != nil {
+		if errors.Is(err, jwt.ErrTokenExpired) {
+			return nil, ErrExpiredToken
+		}
+		if errors.Is(err, jwt.ErrTokenMalformed) {
+			return nil, ErrMalformedToken
+		}
 		return nil, err
 	}
+	if claims, ok := token.Claims.(*PopOKClaim); ok && token.Valid {
+		return claims, nil
+	}
+	return nil, errors.New("invalid PopOK token claims")
+}

internal/web_server/routes.go

@@ -18,6 +18,7 @@ func (a *App) initAppRoutes() {
 		a.validator,
 		a.walletSvc,
 		a.referralSvc,
+		a.virtualGameSvc,
 		a.userSvc,
 		a.transactionSvc,
 		a.ticketSvc,
@@ -101,6 +102,10 @@ func (a *App) initAppRoutes() {
 	a.fiber.Get("/notifications/ws/connect/:recipientID", h.ConnectSocket)
 	a.fiber.Post("/notifications/mark-as-read", h.MarkNotificationAsRead)
 	a.fiber.Post("/notifications/create", h.CreateAndSendNotification)
+
+	// Virtual Game Routes
+	a.fiber.Post("/virtual-game/launch", a.authMiddleware, h.LaunchVirtualGame)
+	a.fiber.Post("/virtual-game/callback", h.HandleVirtualGameCallback)
 }
 
 // @Router /user/resetPassword [post]