feat:データ集計処理実装完了

2024-07-10 17:21:07 +09:00
parent c1d33e3ff0
commit bac7020c15
6 changed files with 509 additions and 337 deletions
--- a/plugin/kintone-addins/src/util/aggregates.ts
+++ b/plugin/kintone-addins/src/util/aggregates.ts
@@ -0,0 +1,121 @@
+import { FieldForm,CalcFieldForm,FieldType, CalcFormat} from "../types/FieldLayout";
+
+/**
+ * 集計操作子
+ */
+export enum Operator {
+    SUM = "SUM",
+    AVG = "AVG",
+    MAX = "MAX",
+    MIN = "MIN",
+    COUNT = "COUNT",
+    FIRST = "FIRST",
+    LAST = "LAST"
+}
+
+/**
+ * 集計関数
+ */
+
+export class Aggregator {
+    private data: string[];
+    private field: FieldForm;
+
+    constructor(data: string[], field: FieldForm) {
+        this.data = data;
+        this.field = field;
+    }
+
+    private toNumberArray(): number[] {
+        const numberArray = this.data.map(item => {
+            const num = Number(item);
+            if (isNaN(num)) {
+                throw new Error(`フィールド「${this.field.code} 」は数値に変換できないため、計算を実行できません。`);
+            }
+            return num;
+        });
+
+        return numberArray;
+    }
+
+    private sum(): number | null {
+        if (this.data.length === 0) return null;
+        const numberArray = this.toNumberArray();
+        return numberArray.reduce((acc, val) => acc + val, 0);
+    }
+
+    private avg(): number | null {
+        if (this.data.length === 0) return null;
+        const numberArray = this.toNumberArray();
+        const total = numberArray.reduce((acc, val) => acc + val, 0);
+        return total / numberArray.length;
+    }
+
+    private max(): number | string | null {
+        if (this.data.length === 0) return null;
+        if (this.field.type === FieldType.NUMBER ) {
+            const numberArray = this.toNumberArray();
+            return Math.max(...numberArray);
+        }
+        if(this.field.type===FieldType.CALC){
+            const calcField = this.field as CalcFieldForm;
+            if(calcField.format===CalcFormat.NUMBER || calcField.format===CalcFormat.NUMBER_DIGIT){
+                const numberArray = this.toNumberArray();
+                return Math.max(...numberArray);
+            }
+        }
+        return this.data.reduce((max, item) => (item > max ? item : max), this.data[0]);
+    }
+
+    private min(): number | string | null {
+        if (this.data.length === 0) return null;
+        if (this.field.type === FieldType.NUMBER ) {
+            const numberArray = this.toNumberArray();
+            return Math.min(...numberArray);
+        }
+        if(this.field.type===FieldType.CALC){
+            const calcField = this.field as CalcFieldForm;
+            if(calcField.format===CalcFormat.NUMBER || calcField.format===CalcFormat.NUMBER_DIGIT){
+                const numberArray = this.toNumberArray();
+                return Math.min(...numberArray);
+            }
+        }
+        if(this.data===null || this.data.length===0){
+            return null;
+        }
+        return this.data.reduce((min, item) => (item < min ? item : min), this.data[0]);
+    }
+
+    private count(): number {
+        return this.data.length;
+    }
+
+    private first(): string | null {
+        return this.data.length ? this.data[0] : null;
+    }
+
+    private last(): string | null {
+        return this.data.length ? this.data[this.data.length - 1] : null;
+    }
+
+    public calculate(operator: Operator): number | string | null {
+            switch (operator) {
+                case Operator.SUM:
+                        return this.sum();
+                case Operator.AVG:
+                        return this.avg();
+                case Operator.MAX:
+                    return this.max();
+                case Operator.MIN:
+                    return this.min();
+                case Operator.COUNT:
+                    return this.count();
+                case Operator.FIRST:
+                    return this.first();
+                case Operator.LAST:
+                    return this.last();
+                default:
+                    return null;
+            }
+    }
+}