import { describe, expect, it } from "vitest";

import { validateFieldEvidenceInput } from "../../scripts/lib/field-vitals-evidence.mjs";

const input = {
  schemaVersion: 1,
  environment: "production",
  releaseId: "release-2026-06-29",
  source: {
    system: "privacy-approved-rum-export",
    exportId: "export-2026-06-29",
  },
  privacy: {
    approved: true,
    approvalRef: "PRIVACY-42",
  },
  window: {
    start: "2026-06-01T00:00:00Z",
    end: "2026-06-29T00:00:00Z",
  },
  thresholdDecision: {
    status: "approved",
    minimumEligibleSamples: 25,
    owner: "performance-owner",
    reviewedAt: "2026-06-30T00:00:00Z",
    evidenceRef: "PERF-BASELINE-7",
  },
  samples: [
    {
      timestamp: "2026-06-20T00:00:00Z",
      consent: true,
      releaseId: "release-2026-06-29",
      routeId: "APP_HOME",
      lcpMs: 1200,
      cls: 0.01,
      inpMs: 80,
    },
  ],
};

describe("field Web Vitals evidence input", () => {
  it("accepts reviewed, coherent 28-day production metadata", () => {
    expect(
      validateFieldEvidenceInput(
        input,
        "25",
        new Date("2026-07-01T00:00:00Z"),
      ),
    ).toMatchObject({
      failures: [],
      minimumEligibleSamples: 25,
      passed: true,
    });
  });

  it("rejects a threshold that does not match the owner decision", () => {
    expect(
      validateFieldEvidenceInput(
        input,
        "10",
        new Date("2026-07-01T00:00:00Z"),
      ),
    ).toMatchObject({
      failures: [
        "MIN_ELIGIBLE_SAMPLES: does not match the approved threshold decision",
      ],
      passed: false,
    });
  });

  it("rejects local, unapproved, malformed, or impossible measurements", () => {
    const invalid = {
      ...input,
      environment: "local",
      releaseId: "local-release",
      privacy: { approved: false, approvalRef: "" },
      window: { ...input.window, end: "2026-06-28T00:00:00Z" },
      samples: [{ ...input.samples[0], lcpMs: -1 }],
    };
    const validation = validateFieldEvidenceInput(
      invalid,
      "-1",
      new Date("2026-07-01T00:00:00Z"),
    );
    expect(validation.passed).toBe(false);
    expect(validation.failures.join("\n")).toContain("environment");
    expect(validation.failures.join("\n")).toContain("releaseId");
    expect(validation.failures.join("\n")).toContain("privacy");
    expect(validation.failures.join("\n")).toContain("lcpMs");
    expect(validation.failures.join("\n")).toContain(
      "MIN_ELIGIBLE_SAMPLES: must be a positive integer",
    );
  });
});