import assert from "node:assert/strict";
import test from "node:test";
import { createMailClient } from "../src/integrations/mail.js";

function fakeRunJxa(result) {
  const calls = [];
  return {
    calls,
    client: createMailClient(async (script, input) => {
      calls.push({ script, input });
      return result;
    }),
  };
}

test("mail_accounts returns normalized account identities without message data", async () => {
  const { client, calls } = fakeRunJxa([
    { id: "acct-personal", name: "Personal", emailAddresses: ["me@example.com"] },
    { id: "acct-emi", name: "EMI", emailAddresses: ["info@emmint.com"] },
  ]);

  const result = await client.accounts();

  assert.deepEqual(result, [
    { id: "acct-personal", name: "Personal", emailAddresses: ["me@example.com"] },
    { id: "acct-emi", name: "EMI", emailAddresses: ["info@emmint.com"] },
  ]);
  assert.equal(calls.length, 1);
  assert.deepEqual(calls[0].input, {});
});

test("mail_list_messages scopes the request to an account mailbox and bounded limit", async () => {
  const { client, calls } = fakeRunJxa([
    {
      id: "message-1",
      accountId: "acct-emi",
      account: "EMI",
      mailbox: "INBOX",
      subject: "Board update",
      sender: "Board <board@example.org>",
      dateSent: "2026-08-03T12:00:00.000Z",
      read: false,
    },
  ]);

  const result = await client.listMessages({ accountId: "acct-emi", mailbox: "INBOX", limit: 5, unreadOnly: true });

  assert.equal(result.length, 1);
  assert.equal(result[0].subject, "Board update");
  assert.deepEqual(calls[0].input, { accountId: "acct-emi", mailbox: "INBOX", limit: 5, unreadOnly: true });
  assert.match(calls[0].script, /input\.limit/);
});

test("mail_read_message requires the selected message ID and never returns data from another message", async () => {
  const { client, calls } = fakeRunJxa({
    id: "message-1",
    accountId: "acct-personal",
    mailbox: "INBOX",
    subject: "Receipt",
    sender: "Store <sales@example.org>",
    dateSent: "2026-08-03T12:00:00.000Z",
    read: true,
    body: "Thanks for your order.",
  });

  const result = await client.readMessage({ accountId: "acct-personal", mailbox: "INBOX", id: "message-1" });

  assert.equal(result.id, "message-1");
  assert.equal(result.body, "Thanks for your order.");
  assert.deepEqual(calls[0].input, { accountId: "acct-personal", mailbox: "INBOX", id: "message-1" });
});

test("mail_list_messages rejects out-of-range limits before asking Mail", async () => {
  const { client, calls } = fakeRunJxa([]);

  assert.throws(
    () => client.listMessages({ accountId: "acct-emi", mailbox: "INBOX", limit: 51, unreadOnly: false }),
    /limit must be between 1 and 50/,
  );
  assert.equal(calls.length, 0);
});