zrequire('people');
zrequire('Filter', 'js/filter');
zrequire('stream_data');
zrequire('narrow_state');

set_global('blueslip', global.make_zblueslip());
set_global('page_params', {});

function set_filter(operators) {
    operators = operators.map(op => ({
        operator: op[0],
        operand: op[1],
    }));
    narrow_state.set_current_filter(new Filter(operators));
}


run_test('stream', () => {
    assert.equal(narrow_state.public_operators(), undefined);
    assert(!narrow_state.active());

    const test_stream = {name: 'Test', stream_id: 15};
    stream_data.add_sub(test_stream);

    assert(!narrow_state.is_for_stream_id(test_stream.stream_id));

    set_filter([
        ['stream', 'Test'],
        ['topic', 'Bar'],
        ['search', 'yo'],
    ]);
    assert(narrow_state.active());

    assert.equal(narrow_state.stream(), 'Test');
    assert.equal(narrow_state.stream_id(), test_stream.stream_id);
    assert.equal(narrow_state.topic(), 'Bar');
    assert(narrow_state.is_for_stream_id(test_stream.stream_id));

    const expected_operators = [
        { negated: false, operator: 'stream', operand: 'Test' },
        { negated: false, operator: 'topic', operand: 'Bar' },
        { negated: false, operator: 'search', operand: 'yo' },
    ];

    const public_operators = narrow_state.public_operators();
    assert.deepEqual(public_operators, expected_operators);
    assert.equal(narrow_state.search_string(), 'stream:Test topic:Bar yo');
});


run_test('narrowed', () => {
    narrow_state.reset_current_filter(); // not narrowed, basically
    assert(!narrow_state.narrowed_to_pms());
    assert(!narrow_state.narrowed_by_reply());
    assert(!narrow_state.narrowed_by_pm_reply());
    assert(!narrow_state.narrowed_by_topic_reply());
    assert(!narrow_state.narrowed_to_search());
    assert(!narrow_state.narrowed_to_topic());
    assert(!narrow_state.narrowed_by_stream_reply());
    assert.equal(narrow_state.stream_id(), undefined);

    set_filter([['stream', 'Foo']]);
    assert(!narrow_state.narrowed_to_pms());
    assert(!narrow_state.narrowed_by_reply());
    assert(!narrow_state.narrowed_by_pm_reply());
    assert(!narrow_state.narrowed_by_topic_reply());
    assert(!narrow_state.narrowed_to_search());
    assert(!narrow_state.narrowed_to_topic());
    assert(narrow_state.narrowed_by_stream_reply());

    set_filter([['pm-with', 'steve@zulip.com']]);
    assert(narrow_state.narrowed_to_pms());
    assert(narrow_state.narrowed_by_reply());
    assert(narrow_state.narrowed_by_pm_reply());
    assert(!narrow_state.narrowed_by_topic_reply());
    assert(!narrow_state.narrowed_to_search());
    assert(!narrow_state.narrowed_to_topic());
    assert(!narrow_state.narrowed_by_stream_reply());

    set_filter([['stream', 'Foo'], ['topic', 'bar']]);
    assert(!narrow_state.narrowed_to_pms());
    assert(narrow_state.narrowed_by_reply());
    assert(!narrow_state.narrowed_by_pm_reply());
    assert(narrow_state.narrowed_by_topic_reply());
    assert(!narrow_state.narrowed_to_search());
    assert(narrow_state.narrowed_to_topic());
    assert(!narrow_state.narrowed_by_stream_reply());

    set_filter([['search', 'grail']]);
    assert(!narrow_state.narrowed_to_pms());
    assert(!narrow_state.narrowed_by_reply());
    assert(!narrow_state.narrowed_by_pm_reply());
    assert(!narrow_state.narrowed_by_topic_reply());
    assert(narrow_state.narrowed_to_search());
    assert(!narrow_state.narrowed_to_topic());
    assert(!narrow_state.narrowed_by_stream_reply());
});

run_test('operators', () => {
    set_filter([['stream', 'Foo'], ['topic', 'Bar'], ['search', 'Yo']]);
    let result = narrow_state.operators();
    assert.equal(result.length, 3);
    assert.equal(result[0].operator, 'stream');
    assert.equal(result[0].operand, 'Foo');

    assert.equal(result[1].operator, 'topic');
    assert.equal(result[1].operand, 'Bar');

    assert.equal(result[2].operator, 'search');
    assert.equal(result[2].operand, 'yo');

    narrow_state.reset_current_filter();
    result = narrow_state.operators();
    assert.equal(result.length, 0);
});

run_test('muting_enabled', () => {
    set_filter([['stream', 'devel']]);
    assert(narrow_state.muting_enabled());

    narrow_state.reset_current_filter(); // not narrowed, basically
    assert(narrow_state.muting_enabled());

    set_filter([['stream', 'devel'], ['topic', 'mac']]);
    assert(!narrow_state.muting_enabled());

    set_filter([['search', 'whatever']]);
    assert(!narrow_state.muting_enabled());

    set_filter([['is', 'private']]);
    assert(!narrow_state.muting_enabled());

});

run_test('set_compose_defaults', () => {
    set_filter([['stream', 'Foo'], ['topic', 'Bar']]);

    const stream_and_subject = narrow_state.set_compose_defaults();
    assert.equal(stream_and_subject.stream, 'Foo');
    assert.equal(stream_and_subject.topic, 'Bar');

    set_filter([['pm-with', 'foo@bar.com']]);
    let pm_test = narrow_state.set_compose_defaults();
    assert.equal(pm_test.private_message_recipient, undefined);

    const john = {
        email: 'john@doe.com',
        user_id: 57,
        full_name: 'John Doe',
    };
    people.add(john);
    people.add(john);

    set_filter([['pm-with', 'john@doe.com']]);
    pm_test = narrow_state.set_compose_defaults();
    assert.equal(pm_test.private_message_recipient, 'john@doe.com');

    set_filter([['topic', 'duplicate'], ['topic', 'duplicate']]);
    assert.deepEqual(narrow_state.set_compose_defaults(), {});

    stream_data.add_sub({name: 'ROME', stream_id: 99});
    set_filter([['stream', 'rome']]);

    const stream_test = narrow_state.set_compose_defaults();
    assert.equal(stream_test.stream, 'ROME');
});

run_test('update_email', () => {
    const steve = {
        email: 'steve@foo.com',
        user_id: 43,
        full_name: 'Steve',
    };

    people.add(steve);
    set_filter([
        ['pm-with', 'steve@foo.com'],
        ['sender', 'steve@foo.com'],
        ['stream', 'steve@foo.com'], // try to be tricky
    ]);
    narrow_state.update_email(steve.user_id, 'showell@foo.com');
    const filter = narrow_state.filter();
    assert.deepEqual(filter.operands('pm-with'), ['showell@foo.com']);
    assert.deepEqual(filter.operands('sender'), ['showell@foo.com']);
    assert.deepEqual(filter.operands('stream'), ['steve@foo.com']);
});

run_test('topic', () => {
    set_filter([['stream', 'Foo'], ['topic', 'Bar']]);
    assert.equal(narrow_state.topic(), 'Bar');

    set_filter([['stream', 'release'], ['topic', '@#$$^test']]);
    assert.equal(narrow_state.topic(), '@#$$^test');

    set_filter([]);
    assert.equal(narrow_state.topic(), undefined);

    set_filter([
        ['sender', 'test@foo.com'],
        ['pm-with', 'test@foo.com'],
    ]);
    assert.equal(narrow_state.topic(), undefined);

    narrow_state.set_current_filter(undefined);
    assert.equal(narrow_state.topic(), undefined);
});


run_test('stream', () => {
    set_filter([]);
    assert.equal(narrow_state.stream(), undefined);
    assert.equal(narrow_state.stream_id(), undefined);

    set_filter([['stream', 'Foo'], ['topic', 'Bar']]);
    assert.equal(narrow_state.stream(), 'Foo');
    assert.equal(narrow_state.stream_sub(), undefined);
    assert.equal(narrow_state.stream_id(), undefined);

    const sub = {name: 'Foo', stream_id: 55};
    stream_data.add_sub(sub);
    assert.equal(narrow_state.stream_id(), 55);
    assert.deepEqual(narrow_state.stream_sub(), sub);

    set_filter([['sender', 'someone'], ['topic', 'random']]);
    assert.equal(narrow_state.stream(), undefined);
});

run_test('pm_string', () => {
    // This function will return undefined unless we're clearly
    // narrowed to a specific PM (including huddles) with real
    // users.
    narrow_state.set_current_filter(undefined);
    assert.equal(narrow_state.pm_string(), undefined);

    set_filter([['stream', 'Foo'], ['topic', 'Bar']]);
    assert.equal(narrow_state.pm_string(), undefined);

    set_filter([['pm-with', '']]);
    assert.equal(narrow_state.pm_string(), undefined);

    set_filter([['pm-with', 'bogus@foo.com']]);
    assert.equal(narrow_state.pm_string(), undefined);

    const alice = {
        email: 'alice@foo.com',
        user_id: 444,
        full_name: 'Alice',
    };

    const bob = {
        email: 'bob@foo.com',
        user_id: 555,
        full_name: 'Bob',
    };

    people.add(alice);
    people.add(bob);

    set_filter([['pm-with', 'bob@foo.com,alice@foo.com']]);
    assert.equal(narrow_state.pm_string(), '444,555');
});