feat: add get a game service and fake database

storage/dao/fake/database_fake_games.go

@@ -1,16 +1,59 @@
 package fake
 
-import "hamster-tycoon/storage/model"
+import (
+	"encoding/json"
+	"errors"
+	uuid "github.com/satori/go.uuid"
+	"hamster-tycoon/storage/dao"
+	"hamster-tycoon/storage/model"
+	"hamster-tycoon/utils"
+)
+
+const (
+	cacheKeyGames = "games"
+)
+
+func (db *DatabaseFake) saveGames(games []*model.Game) {
+	data := make([]interface{}, 0)
+	for _, v := range games {
+		data = append(data, v)
+	}
+	db.save(cacheKeyGames, data)
+}
+
+func (db *DatabaseFake) loadGames() []*model.Game {
+	games := make([]*model.Game, 0)
+	b, err := db.Cache.Get(cacheKeyGames)
+	if err != nil {
+		return games
+	}
+	err = json.Unmarshal(b, &games)
+	if err != nil {
+		utils.GetLogger().WithError(err).Error("Error while unmarshal fake users")
+	}
+	return games
+}
 
 func (db *DatabaseFake) GetAllGames() ([]*model.Game, error) {
-	return nil, nil
+	return db.loadGames(), nil
 }
 
-func (db *DatabaseFake) GetGameById(string) (*model.Game, error) {
-	return nil, nil
+func (db *DatabaseFake) GetGameById(gameId string) (*model.Game, error) {
+	games := db.loadGames()
+	for _, g := range games {
+		if g.ID == gameId {
+			return g, nil
+		}
+	}
+	return nil, dao.NewDAOError(dao.ErrTypeNotFound, errors.New("game not found"))
 }
 
-func (db *DatabaseFake) CreateGame(*model.Game) error {
+func (db *DatabaseFake) CreateGame(game *model.Game) error {
+	game.ID = uuid.NewV4().String()
+
+	games := db.loadGames()
+	games = append(games, game)
+	db.saveGames(games)
 	return nil
 }