import assert from "node:assert/strict";
import test from "node:test";
import {
  computeDueCutoff,
  runDueSoonWecomNotifications,
} from "../lib/wecom-notifier-service.ts";

test("computeDueCutoff advances by dueDays and crosses month/year", () => {
  assert.equal(computeDueCutoff("2026-08-18", 3), "2026-08-21");
  assert.equal(computeDueCutoff("2026-08-30", 3), "2026-09-02");
  assert.equal(computeDueCutoff("2026-12-30", 3), "2027-01-02");
  assert.equal(computeDueCutoff("2026-08-18", 0), "2026-08-18");
  assert.equal(computeDueCutoff("2026-08-18", 10), "2026-08-28");
});

test("computeDueCutoff returns input unchanged when malformed", () => {
  assert.equal(computeDueCutoff("not-a-date", 3), "not-a-date");
});

function captureDb() {
  const executed = [];
  const db = {
    prepare(sql) {
      const statement = (values) => ({
        async all() {
          executed.push({ sql, values });
          return { results: [] };
        },
        async first() {
          executed.push({ sql, values });
          return null;
        },
      });
      return {
        bind(...values) {
          return statement(values);
        },
        ...statement([]),
      };
    },
  };
  return { db, executed };
}

const NOTIFY_CONFIG = {
  corpId: "",
  agentId: "",
  secret: "",
  robotWebhook: "",
  dueDays: 3,
};

test("runDueSoonWecomNotifications filters by taskId when given", async () => {
  const { db, executed } = captureDb();
  const now = Date.UTC(2026, 7, 18, 2, 0, 0);
  const summary = await runDueSoonWecomNotifications(
    db,
    NOTIFY_CONFIG,
    undefined,
    now,
    "task-9",
  );
  assert.equal(executed.length, 1);
  assert.match(executed[0].sql, /AND t\.id = \?/);
  assert.deepEqual(executed[0].values, ["2026-08-21", "task-9"]);
  assert.equal(summary.dueSoonAttempted, 0);
  assert.equal(summary.digestSent, false);
});

test("runDueSoonWecomNotifications keeps global scan without taskId", async () => {
  const { db, executed } = captureDb();
  const now = Date.UTC(2026, 7, 18, 2, 0, 0);
  await runDueSoonWecomNotifications(db, NOTIFY_CONFIG, undefined, now);
  assert.equal(executed.length, 1);
  assert.ok(!/AND t\.id = \?/.test(executed[0].sql));
  assert.deepEqual(executed[0].values, ["2026-08-21"]);
});