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utils/reportTotals.ts

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+import type {
+  DashboardReportCountingRow,
+  DashboardReportFeedInRow,
+  DashboardReportFeedOutRow,
+  DashboardReportFeedUseRow,
+} from '../types/dashboardReport.ts';
+
+export const REPORT_TOTAL_LABEL = 'Total';
+
+const isPresentNumber = (value: number | null | undefined): value is number =>
+  typeof value === 'number' && Number.isFinite(value);
+
+function sumPresent(values: Array<number | null | undefined>): number | null {
+  let total = 0;
+  let any = false;
+  for (const value of values) {
+    if (!isPresentNumber(value)) continue;
+    total += value;
+    any = true;
+  }
+  return any ? total : null;
+}
+
+const sackAccuracy = (manual: number | null, iot: number | null): number | null => {
+  if (manual != null && iot != null && manual > 0 && iot > 0) {
+    return Math.round((Math.min(manual, iot) / Math.max(manual, iot)) * 1000) / 10;
+  }
+  if (manual === 0 && iot === 0) return 100;
+  return null;
+};
+
+export interface CountingTotalsRow {
+  label: string;
+  countBefore: number | null;
+  mortality: number | null;
+  harvest: number | null;
+  harvestWeight: number | null;
+  countAfter: number | null;
+  iotCount: number | null;
+  accuracy: number | null;
+}
+
+export interface FeedInTotalsRow {
+  label: string;
+  manualIn: number | null;
+  iotIn: number | null;
+  accuracy: number | null;
+}
+
+export interface FeedUseTotalsRow {
+  label: string;
+  manualUse: number | null;
+  iotUse: number | null;
+  accuracy: number | null;
+}
+
+export interface FeedOutTotalsRow {
+  label: string;
+  manualOut: number | null;
+  iotOut: number | null;
+  accuracy: number | null;
+}
+
+export function countingTotals(rows: DashboardReportCountingRow[]): CountingTotalsRow | null {
+  if (!rows.length) return null;
+  return {
+    label: REPORT_TOTAL_LABEL,
+    countBefore: null,
+    mortality: sumPresent(rows.map((row) => row.mortality)),
+    harvest: sumPresent(rows.map((row) => row.harvest)),
+    harvestWeight: sumPresent(rows.map((row) => row.harvestWeight)),
+    countAfter: null,
+    iotCount: null,
+    accuracy: null,
+  };
+}
+
+export function feedInTotals(rows: DashboardReportFeedInRow[]): FeedInTotalsRow | null {
+  if (!rows.length) return null;
+  const manualIn = sumPresent(rows.map((row) => row.manualIn));
+  const iotIn = sumPresent(rows.map((row) => row.iotIn));
+  return {
+    label: REPORT_TOTAL_LABEL,
+    manualIn,
+    iotIn,
+    accuracy: sackAccuracy(manualIn, iotIn),
+  };
+}
+
+export function feedUseTotals(rows: DashboardReportFeedUseRow[]): FeedUseTotalsRow | null {
+  if (!rows.length) return null;
+  const manualUse = sumPresent(rows.map((row) => row.manualUse));
+  const iotUse = sumPresent(rows.map((row) => row.iotUse));
+  return {
+    label: REPORT_TOTAL_LABEL,
+    manualUse,
+    iotUse,
+    accuracy: sackAccuracy(manualUse, iotUse),
+  };
+}
+
+export function feedOutTotals(rows: DashboardReportFeedOutRow[]): FeedOutTotalsRow | null {
+  if (!rows.length) return null;
+  const manualOut = sumPresent(rows.map((row) => row.manualOut));
+  const iotOut = sumPresent(rows.map((row) => row.iotOut));
+  return {
+    label: REPORT_TOTAL_LABEL,
+    manualOut,
+    iotOut,
+    accuracy: sackAccuracy(manualOut, iotOut),
+  };
+}