import { describe, expect, it } from "vitest";
import { getDashboardData, getMetricDetails } from "@/domain/analytics";

describe("metric drill-down analytics", () => {
  const dashboard = getDashboardData();
  const details = getMetricDetails();

  it("reconciles inventory value with batch totals", () => {
    expect(details.inventoryValue.retailValue).toBe(dashboard.metrics.retailValue);
    expect(details.inventoryValue.costValue).toBe(
      dashboard.inventory.reduce((sum, item) => sum + item.costExposure, 0),
    );
    expect(details.inventoryValue.potentialMargin).toBe(
      details.inventoryValue.retailValue - details.inventoryValue.costValue,
    );
    expect(details.inventoryValue.byBranch).toHaveLength(4);
  });

  it("uses complete current and prior revenue periods", () => {
    expect(details.revenue.current30d).toBe(dashboard.metrics.revenue30d);
    expect(details.revenue.current30d).toBeGreaterThan(0);
    expect(details.revenue.prior30d).toBeGreaterThan(0);
    expect(Number.isFinite(details.revenue.changePercent)).toBe(true);
    expect(details.revenue.byProduct).toHaveLength(8);
  });

  it("limits headline risk exposure to at-risk and expired batches", () => {
    expect(details.risk.affected.every(
      (item) => item.status === "at_risk" || item.status === "expired",
    )).toBe(true);
    expect(details.risk.costValue).toBe(dashboard.metrics.atRiskValue);
    expect(details.risk.byStatus.some((row) => row.status === "watch")).toBe(true);
  });

  it("provides bounded freshness rollups", () => {
    expect(details.freshness.averageScore).toBe(dashboard.metrics.averageFreshness);
    expect(details.freshness.weightedScore).toBeGreaterThanOrEqual(0);
    expect(details.freshness.weightedScore).toBeLessThanOrEqual(100);
    expect(details.freshness.freshUnitsPercent).toBeGreaterThanOrEqual(0);
    expect(details.freshness.freshUnitsPercent).toBeLessThanOrEqual(100);
    expect(details.freshness.byProduct).toHaveLength(8);
  });
});