import assert from "node:assert/strict";
import { readFileSync } from "node:fs";
import test from "node:test";
import {
  READ_REPORT_CANDIDATE_RANGE_RPC,
  loadReportCandidateRange,
  parseReportCandidateRange,
  reportCandidateRangeErrorCode,
} from "../src/lib/report-candidate-range.ts";
import {
  resolveReportBirthTimeSensitivityInput,
} from "../src/lib/personal-report-route-core.ts";
import { REPORT_STABLE_CODES } from "../src/lib/personal-report-codes.ts";

const workerSource = readFileSync(
  new URL("../src/lib/personal-report-worker.ts", import.meta.url),
  "utf8",
);
const createRoute = readFileSync(
  new URL("../src/app/api/reports/route.ts", import.meta.url),
  "utf8",
);
const helperSource = readFileSync(
  new URL("../src/lib/report-candidate-range.ts", import.meta.url),
  "utf8",
);

function capturingWarn() {
  const reasons: string[] = [];
  return {
    reasons,
    warn: (payload: { event: "report_candidate_range_unavailable"; reason: string }) => {
      reasons.push(payload.reason);
    },
  };
}

test("permission denied, thrown errors, and empty rows all degrade to a null window", async () => {
  const denied = capturingWarn();
  assert.equal(
    await loadReportCandidateRange(
      {
        rpc: async () => ({
          data: null,
          error: { code: "42501", message: "permission denied for table agentic_rectification_cases" },
        }),
      },
      { userId: "11111111-1111-4111-8111-111111111111" },
      denied.warn,
    ),
    null,
  );
  assert.deepEqual(denied.reasons, ["42501"]);

  const thrown = capturingWarn();
  assert.equal(
    await loadReportCandidateRange(
      {
        rpc: async () => {
          throw new TypeError("rpc exploded");
        },
      },
      { userId: "11111111-1111-4111-8111-111111111111" },
      thrown.warn,
    ),
    null,
  );
  assert.deepEqual(thrown.reasons, ["TypeError"]);

  const empty = capturingWarn();
  assert.equal(
    await loadReportCandidateRange(
      { rpc: async () => ({ data: null, error: null }) },
      { userId: "11111111-1111-4111-8111-111111111111" },
      empty.warn,
    ),
    null,
  );
  assert.deepEqual(empty.reasons, []);
});

test("a valid RPC window is returned and extra columns are ignored", async () => {
  const log = capturingWarn();
  assert.deepEqual(
    await loadReportCandidateRange(
      {
        rpc: async (fn, args) => {
          assert.equal(fn, READ_REPORT_CANDIDATE_RANGE_RPC);
          assert.equal(args.p_user_id, "11111111-1111-4111-8111-111111111111");
          assert.equal(args.p_rectification_case_id, "22222222-2222-4222-8222-222222222222");
          return {
            data: {
              start_time: "10:00:00",
              end_time: "10:04:00",
              user_id: "must-not-leak",
              candidate_range: { secret: true },
            },
            error: null,
          };
        },
      },
      {
        userId: "11111111-1111-4111-8111-111111111111",
        rectificationCaseId: "22222222-2222-4222-8222-222222222222",
      },
      log.warn,
    ),
    { startTime: "10:00", endTime: "10:04" },
  );
  assert.deepEqual(log.reasons, []);
});

test("degraded candidate windows keep report sensitivity input unwindowed", () => {
  const input = resolveReportBirthTimeSensitivityInput(
    {},
    "accepted",
    "10:30",
    null,
  );
  assert.equal(input.birth_time_accuracy, "provisional");
  assert.equal("candidate_range" in input, false);
  assert.equal(REPORT_STABLE_CODES.calculationUnavailable, "calculation_unavailable");
});

test("error codes never include messages or birth content", () => {
  assert.equal(
    reportCandidateRangeErrorCode({
      code: "42501",
      message: "permission denied for table agentic_rectification_cases",
    }),
    "42501",
  );
  assert.equal(parseReportCandidateRange({ start_time: "25:00", end_time: "10:00" }), null);
  assert.doesNotMatch(helperSource, /error\.message|details|hint/);
});

test("worker and create route read candidate windows only through the shared RPC helper", () => {
  for (const source of [workerSource, createRoute]) {
    assert.match(source, /loadReportCandidateRange/);
    assert.doesNotMatch(source, /from\("agentic_rectification_cases"\)/);
    assert.doesNotMatch(source, /from\("birth_time_rectification_cases"\)/);
    assert.doesNotMatch(source, /\.in\("status", \["confirmed", "completed"\]\)/);
  }
  assert.doesNotMatch(
    workerSource,
    /loadReportCandidateRange[\s\S]{0,400}calculation_unavailable/,
  );
});