Initial commit

server/internal/masterdata/omikuji.go

@@ -0,0 +1,37 @@
+package masterdata
+
+import (
+	"log"
+	"lunar-tear/server/internal/utils"
+)
+
+type omikujiEntry struct {
+	OmikujiId      int32 `json:"OmikujiId"`
+	OmikujiAssetId int32 `json:"OmikujiAssetId"`
+}
+
+type OmikujiCatalog struct {
+	assetIds map[int32]int32
+}
+
+func (c *OmikujiCatalog) LookupAssetId(omikujiId int32) int32 {
+	if id, ok := c.assetIds[omikujiId]; ok {
+		return id
+	}
+	return 0
+}
+
+func LoadOmikujiCatalog() *OmikujiCatalog {
+	entries, err := utils.ReadJSON[omikujiEntry]("EntityMOmikujiTable.json")
+	if err != nil {
+		log.Fatalf("load omikuji table: %v", err)
+	}
+
+	cat := &OmikujiCatalog{
+		assetIds: make(map[int32]int32, len(entries)),
+	}
+	for _, e := range entries {
+		cat.assetIds[e.OmikujiId] = e.OmikujiAssetId
+	}
+	return cat
+}