clean up the legacy context struct

pkg/bbgo/cache.go

@@ -10,7 +10,6 @@ import (
 	"github.com/pkg/errors"
 )
 
-
 type DataFetcher func() (interface{}, error)
 
 // WithCache let you use the cache with the given cache key, variable reference and your data fetcher,
@@ -19,7 +18,7 @@ type DataFetcher func() (interface{}, error)
 // fetcher is the closure that will fetch your remote data or some slow operation.
 func WithCache(key string, obj interface{}, fetcher DataFetcher) error {
 	cacheDir := CacheDir()
-	cacheFile := path.Join(cacheDir, key+ ".json")
+	cacheFile := path.Join(cacheDir, key+".json")
 
 	if _, err := os.Stat(cacheFile); os.IsNotExist(err) {
 		data, err := fetcher()

pkg/bbgo/context.go

@@ -2,28 +2,10 @@ package bbgo
 
 import (
 	"sync"
-
-	"github.com/c9s/bbgo/pkg/accounting"
-	"github.com/c9s/bbgo/pkg/accounting/pnl"
-	"github.com/c9s/bbgo/pkg/types"
 )
 
+// deprecated: legacy context struct
 type Context struct {
 	sync.Mutex
-
-	Symbol string
-
-	// Market is the market configuration of a symbol
-	Market types.Market
-
-	AverageBidPrice float64
-	CurrentPrice    float64
-
-	Balances                map[string]types.Balance
-	ProfitAndLossCalculator *pnl.AverageCostCalculator
-	StockManager            *accounting.StockDistribution
 }
 
-func (c *Context) SetCurrentPrice(price float64) {
-	c.CurrentPrice = price
-}