import { readFileSync } from "node:fs";

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

import { redact, SEVERITY } from "./log";

// The browser log and the server log are ONE log (E22): a client batch lands in `log_events` beside
// the server's rows. So the two must agree on what is safe to keep and on what a level is worth —
// asserted against the backend's own files, not a copy of them.
const backend = (path: string) =>
  readFileSync(new URL(`../../../backend/${path}`, import.meta.url), "utf-8");

const { cases } = JSON.parse(backend("tests/fixtures/log_redaction_cases.json")) as {
  cases: { name: string; key: string; value: unknown; expected: unknown }[];
};

describe("redaction matches the server's (shared cases)", () => {
  it.each(cases.map((c) => [c.name, c] as const))("%s", (_name, c) => {
    expect(redact(c.value, c.key)).toEqual(c.expected);
  });
});

describe("severity numbers match logs.SEVERITY", () => {
  it("names the same levels with the same numbers", () => {
    const block = /SEVERITY: dict\[str, int\] = \{([^}]*)\}/.exec(backend("app/logs.py"))?.[1];
    expect(block).toBeTruthy();
    const server = Object.fromEntries(
      [...block!.matchAll(/"(\w+)":\s*(\d+)/g)].map((m) => [m[1], Number(m[2])]),
    );
    expect(SEVERITY).toEqual(server);
  });
});