import { test } from 'node:test';
import assert from 'node:assert/strict';
import type { Room } from 'matrix-js-sdk';
import { declinedRing, hasActiveCallMembership, isRingableRoom } from './callRing';

const fakeRoom = (opts: { callRoom?: boolean; joinRule?: string; spaceParent?: boolean }): Room =>
  ({
    isCallRoom: () => !!opts.callRoom,
    getJoinRule: () => opts.joinRule ?? 'invite',
    getLiveTimeline: () => ({
      getState: () => ({ getStateEvents: () => (opts.spaceParent ? [{}] : []) }),
    }),
  }) as unknown as Room;

test('voice rooms never ring or show "missed call", even as DMs', () => {
  assert.equal(isRingableRoom(fakeRoom({ callRoom: true }), false), false);
  assert.equal(isRingableRoom(fakeRoom({ callRoom: true }), true), false);
});

test('DMs and invite-only groups outside a space ring', () => {
  assert.equal(isRingableRoom(fakeRoom({ joinRule: 'public' }), true), true);
  assert.equal(isRingableRoom(fakeRoom({ joinRule: 'invite' }), false), true);
});

test('space channels, public and restricted rooms do not ring', () => {
  assert.equal(isRingableRoom(fakeRoom({ joinRule: 'invite', spaceParent: true }), false), false);
  assert.equal(isRingableRoom(fakeRoom({ joinRule: 'public' }), false), false);
  assert.equal(isRingableRoom(fakeRoom({ joinRule: 'restricted' }), false), false);
});

const stateRoom = (
  members: Array<{ sender: string; content: Record<string, unknown> }>,
  timeline: unknown[] = [],
): Room =>
  ({
    getLiveTimeline: () => ({
      getState: () => ({
        getStateEvents: () =>
          members.map((m) => ({
            getSender: () => m.sender,
            getStateKey: () => `_${m.sender}_DEV_m.call`,
            getContent: () => m.content,
          })),
      }),
      getEvents: () => timeline,
    }),
  }) as unknown as Room;

test('hasActiveCallMembership reads the room state: joined vs left (#312)', () => {
  const room = stateRoom([
    { sender: '@bob:x', content: { application: 'm.call', call_id: '' } },
    { sender: '@carol:x', content: {} },
  ]);
  assert.equal(hasActiveCallMembership(room, '@bob:x'), true);
  assert.equal(hasActiveCallMembership(room, '@carol:x'), false, 'left = empty content');
  assert.equal(hasActiveCallMembership(room, '@dave:x'), false);
});

test('declinedRing finds our own decline of that ring only (#312)', () => {
  const decline = (sender: string, rel: string) => ({
    getType: () => 'org.matrix.msc4310.rtc.decline',
    getSender: () => sender,
    getRelation: () => ({ event_id: rel }),
  });
  const room = stateRoom([], [decline('@me:x', '$ring1'), decline('@bob:x', '$ring2')]);
  assert.equal(declinedRing(room, '$ring1', '@me:x'), true);
  assert.equal(declinedRing(room, '$ring2', '@me:x'), false, "someone else's decline");
  assert.equal(declinedRing(room, '$ring3', '@me:x'), false);
});