const util = zrequire('util');
zrequire('pm_conversations');
zrequire('people');
zrequire('message_store');

const noop = function () {};

set_global('$', global.make_zjquery());
set_global('document', 'document-stub');

set_global('alert_words', {
    process_message: noop,
});

set_global('stream_topic_history', {
    add_message: noop,
});

set_global('recent_senders', {
    process_message_for_senders: noop,
});

set_global('page_params', {
    realm_allow_message_editing: true,
    is_admin: true,
});

const me = {
    email: 'me@example.com',
    user_id: 101,
    full_name: 'Me Myself',
};

const alice = {
    email: 'alice@example.com',
    user_id: 102,
    full_name: 'Alice',
};

const bob = {
    email: 'bob@example.com',
    user_id: 103,
    full_name: 'Bob',
};

const cindy = {
    email: 'cindy@example.com',
    user_id: 104,
    full_name: 'Cindy',
};

const denise  = {
    email: 'denise@example.com',
    user_id: 105,
    full_name: 'Denise ',
};

people.add_active_user(me);
people.add_active_user(alice);
people.add_active_user(bob);
people.add_active_user(cindy);
people.add_active_user(denise);

people.initialize_current_user(me.user_id);

function convert_recipients(people) {
    // Display_recipient uses `id` for user_ids.
    return people.map(p => ({
        email: p.email,
        id: p.user_id,
        full_name: p.full_name,
    }));
}

run_test('add_message_metadata', () => {
    let message = {
        sender_email: 'me@example.com',
        sender_id: me.user_id,
        type: 'private',
        display_recipient: convert_recipients([me, bob, cindy]),
        flags: ['has_alert_word'],
        is_me_message: false,
        id: 2067,
    };
    message_store.set_message_booleans(message);
    message_store.add_message_metadata(message);

    assert.deepEqual(
        message_store.user_ids().sort(),
        [me.user_id, bob.user_id, cindy.user_id]);

    assert.equal(message.is_private, true);
    assert.equal(message.reply_to, 'bob@example.com,cindy@example.com');
    assert.equal(message.to_user_ids, '103,104');
    assert.equal(message.display_reply_to, 'Bob, Cindy');
    assert.equal(message.alerted, true);
    assert.equal(message.is_me_message, false);

    let retrieved_message = message_store.get(2067);
    assert.equal(retrieved_message, message);

    blueslip.expect('error', 'message_store got non-number: 2067');
    retrieved_message = message_store.get('2067');
    assert.equal(retrieved_message, message);

    // access cached previous message, and test match subject/content
    message = {
        id: 2067,
        match_subject: "topic foo",
        match_content: "bar content",
    };
    message = message_store.add_message_metadata(message);

    assert.equal(message.reply_to, 'bob@example.com,cindy@example.com');
    assert.equal(message.to_user_ids, '103,104');
    assert.equal(message.display_reply_to, 'Bob, Cindy');
    assert.equal(util.get_match_topic(message), 'topic foo');
    assert.equal(message.match_content, 'bar content');

    message = {
        sender_email: denise.email,
        sender_id: denise.user_id,
        type: 'stream',
        display_recipient: 'Zoolippy',
        topic: 'cool thing',
        subject: 'the_subject',
        id: 2068,
    };

    message_store.set_message_booleans(message);
    message_store.add_message_metadata(message);
    assert.deepEqual(message.stream, message.display_recipient);
    assert.equal(message.reply_to, 'denise@example.com');
    assert.deepEqual(message.flags, undefined);
    assert.equal(message.alerted, false);

    assert.deepEqual(
        message_store.user_ids().sort(),
        [me.user_id, bob.user_id, cindy.user_id, denise.user_id]);
});

run_test('message_booleans_parity', () => {
    // We have two code paths that update/set message booleans.
    // This test asserts that both have identical behavior for the
    // flags common between them.
    const assert_bool_match = (flags, expected_message) => {
        const set_message = {topic: 'set_message_booleans', flags: flags};
        const update_message = {topic: 'update_booleans'};
        message_store.set_message_booleans(set_message);
        message_store.update_booleans(update_message, flags);
        Object.keys(expected_message).forEach((key) => {
            assert.equal(set_message[key], expected_message[key], `'${key}' != ${expected_message[key]}`);
            assert.equal(update_message[key], expected_message[key]);
        });
        assert.equal(set_message.topic, 'set_message_booleans');
        assert.equal(update_message.topic, 'update_booleans');
    };

    assert_bool_match(['wildcard_mentioned'],
                      {
                          mentioned: true,
                          mentioned_me_directly: false,
                          alerted: false,
                      });

    assert_bool_match(['mentioned'],
                      {
                          mentioned: true,
                          mentioned_me_directly: true,
                          alerted: false,
                      });

    assert_bool_match(['has_alert_word'],
                      {
                          mentioned: false,
                          mentioned_me_directly: false,
                          alerted: true,
                      });
});

run_test('errors', () => {
    // Test a user that doesn't exist
    let message = {
        type: 'private',
        display_recipient: [{id: 92714}],
    };

    blueslip.expect('error', 'Unknown user_id in get_by_user_id: 92714', 2);
    blueslip.expect('error', 'Unknown user id 92714', 2); // From person.js

    // Expect each to throw two blueslip errors
    // One from message_store.js, one from person.js
    const emails = message_store.get_pm_emails(message);
    assert.equal(emails, '?');

    const names = message_store.get_pm_full_names(message);
    assert.equal(names, '?');

    message = {
        type: 'stream',
        display_recipient: [{}],
    };

    // This should early return and not run pm_conversation.set_partner
    let num_partner = 0;
    set_global('pm_conversation', {
        set_partner: function () {
            num_partner += 1;
        },
    });
    message_store.process_message_for_recent_private_messages(message);
    assert.equal(num_partner, 0);
});

run_test('update_booleans', () => {
    const message = {};

    // First, test fields that we do actually want to update.
    message.mentioned = false;
    message.mentioned_me_directly = false;
    message.alerted = false;

    let flags = ['mentioned', 'has_alert_word', 'read'];
    message_store.update_booleans(message, flags);
    assert.equal(message.mentioned, true);
    assert.equal(message.mentioned_me_directly, true);
    assert.equal(message.alerted, true);

    flags = ['wildcard_mentioned', 'unread'];
    message_store.update_booleans(message, flags);
    assert.equal(message.mentioned, true);
    assert.equal(message.mentioned_me_directly, false);

    flags = ['read'];
    message_store.update_booleans(message, flags);
    assert.equal(message.mentioned, false);
    assert.equal(message.mentioned_me_directly, false);
    assert.equal(message.alerted, false);

    // Make sure we don't muck with unread.
    message.unread = false;
    flags = [''];
    message_store.update_booleans(message, flags);
    assert.equal(message.unread, false);

    message.unread = true;
    flags = ['read'];
    message_store.update_booleans(message, flags);
    assert.equal(message.unread, true);
});

run_test('each', () => {
    message_store.each((message) => {
        assert(message.alerted !== undefined);
    });
});

run_test('message_id_change', () => {
    const message = {
        sender_email: 'me@example.com',
        sender_id: me.user_id,
        type: 'private',
        display_recipient: convert_recipients([me, bob, cindy]),
        flags: ['has_alert_word'],
        id: 401,
    };
    message_store.add_message_metadata(message);

    set_global('pointer', {
        furthest_read: 401,
        set_furthest_read: function (value) { this.furthest_read = value; },
    });

    set_global('message_list', {});
    set_global('home_msg_list', {});

    const opts = {
        old_id: 401,
        new_id: 402,
    };

    global.with_stub(function (stub) {
        home_msg_list.change_message_id = stub.f;
        message_store.reify_message_id(opts);
        const msg_id = stub.get_args('old', 'new');
        assert.equal(msg_id.old, 401);
        assert.equal(msg_id.new, 402);
    });

    home_msg_list.view = {};
    global.with_stub(function (stub) {
        home_msg_list.view.change_message_id = stub.f;
        message_store.reify_message_id(opts);
        const msg_id = stub.get_args('old', 'new');
        assert.equal(msg_id.old, 401);
        assert.equal(msg_id.new, 402);
    });

});

run_test('errors', () => {
    blueslip.expect('error', 'message_store.get got bad value: undefined');
    message_store.get(undefined);
});