/
databaseConnection.go
86 lines (69 loc) · 2.16 KB
/
databaseConnection.go
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package database
import (
"context"
"fmt"
"log"
"os"
"time"
"github.com/joho/godotenv"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
type GameState struct {
BsonID primitive.ObjectID `bson:"_id"`
GameCode *string `json:"gameCode"`
State *string `json:"state"`
}
func DBinstance() *mongo.Client {
err := godotenv.Load(".env")
if err != nil {
log.Fatal("Error loading .env file")
}
MongoDb := os.Getenv("MONGODB_URL")
client, err := mongo.NewClient(options.Client().ApplyURI(MongoDb))
if err != nil {
log.Fatal(err)
}
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
err = client.Connect(ctx)
if err != nil {
log.Fatal(err)
}
fmt.Println("Connected to MongoDB!")
return client
}
var Client *mongo.Client = DBinstance()
var COLLECTION_NAME = "gameState"
var gameStateCollection *mongo.Collection = Client.Database("cluster0").Collection(COLLECTION_NAME)
func GetGameState(gameCode string) (string, error) {
var ctx, cancel = context.WithTimeout(context.Background(), 100*time.Second)
var gameState GameState
err := gameStateCollection.FindOne(ctx, bson.M{"gameCode": gameCode}).Decode(&gameState)
defer cancel()
if err != nil {
if err == mongo.ErrNoDocuments {
return "", fmt.Errorf("no game state found for game code: %v", gameCode)
}
fmt.Println("error getting state", err)
return "", err
}
return *gameState.State, nil
}
func UpsertGameState(gameCode string, state string) error {
var ctx, cancel = context.WithTimeout(context.Background(), 100*time.Second)
defer cancel()
update := bson.M{"$set": bson.M{"state": state}}
opts := options.FindOneAndUpdate().SetUpsert(true)
var gameState GameState
result := gameStateCollection.FindOneAndUpdate(ctx, bson.M{"gameCode": gameCode}, update, opts)
err := result.Decode(&gameState)
if err != nil && err != mongo.ErrNoDocuments {
fmt.Println("Error setting state:", err)
return fmt.Errorf("error updating game state: %v", err)
}
fmt.Println("succesfully upserted game state", gameCode, state)
return nil
}