Item price support

scripts/rsw/internal/prices/mapping.go

@@ -18,16 +18,19 @@ type MappingCache struct {
 	byID     map[int]*MappingItem
 	byName   map[string]*MappingItem
 	cacheDir string
+	game     string
 }
 
 // NewMappingCache creates a mapping cache backed by the given client.
-func NewMappingCache(client *Client) *MappingCache {
+// The game parameter scopes the cache file (e.g. "osrs" or "rs3").
+func NewMappingCache(client *Client, game string) *MappingCache {
 	home, _ := os.UserHomeDir()
 	return &MappingCache{
 		client:   client,
 		byID:     make(map[int]*MappingItem),
 		byName:   make(map[string]*MappingItem),
 		cacheDir: filepath.Join(home, ".rsw", "cache"),
+		game:     game,
 	}
 }
 
@@ -81,7 +84,8 @@ func (mc *MappingCache) index() {
 }
 
 func (mc *MappingCache) cachePath() string {
-	return filepath.Join(mc.cacheDir, "mapping.json")
+	filename := mc.game + "_mapping.json"
+	return filepath.Join(mc.cacheDir, filename)
 }
 
 func (mc *MappingCache) loadFromDisk() bool {