#53 [feat] : 차트 DTO 추가

backend/src/main/java/org/dgu/backend/dto/ChartDto.java

@@ -0,0 +1,46 @@
+package org.dgu.backend.dto;
+
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.databind.PropertyNamingStrategies;
+import com.fasterxml.jackson.databind.annotation.JsonNaming;
+import com.fasterxml.jackson.databind.annotation.JsonSerialize;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import org.dgu.backend.domain.CandleInfo;
+import org.dgu.backend.util.BigDecimalSerializer;
+
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
+public class ChartDto {
+    @Builder
+    @Getter
+    @AllArgsConstructor
+    @JsonNaming(value = PropertyNamingStrategies.SnakeCaseStrategy.class)
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    public static class OHLCVResponse {
+        private String date;
+        @JsonSerialize(using = BigDecimalSerializer.class)
+        private BigDecimal openingPrice;
+        @JsonSerialize(using = BigDecimalSerializer.class)
+        private BigDecimal highPrice;
+        @JsonSerialize(using = BigDecimalSerializer.class)
+        private BigDecimal lowPrice;
+        @JsonSerialize(using = BigDecimalSerializer.class)
+        private BigDecimal closePrice;
+        @JsonSerialize(using = BigDecimalSerializer.class)
+        private BigDecimal volume;
+
+        public static ChartDto.OHLCVResponse of(CandleInfo candleInfo) {
+            return OHLCVResponse.builder()
+                    .date(String.valueOf(candleInfo.getDateTime()))
+                    .openingPrice(BigDecimal.valueOf(candleInfo.getOpeningPrice()))
+                    .lowPrice(BigDecimal.valueOf(candleInfo.getLowPrice()))
+                    .highPrice(BigDecimal.valueOf(candleInfo.getHighPrice()))
+                    .closePrice(BigDecimal.valueOf(candleInfo.getTradePrice()))
+                    .volume(BigDecimal.valueOf(candleInfo.getAccTradeVolume()).setScale(3, RoundingMode.HALF_UP))
+                    .build();
+        }
+    }
+}