zrequire("message_events");
zrequire("message_store");
zrequire("muting");
zrequire("people");
zrequire("recent_senders");
zrequire("stream_data");
zrequire("stream_topic_history");
zrequire("unread");

set_global("$", global.make_zjquery());
set_global("alert_words", {});
set_global("condense", {});
set_global("current_msg_list", {});
set_global("message_edit", {});
set_global("message_list", {});
set_global("notifications", {});
set_global("page_params", {});
set_global("pm_list", {});
set_global("stream_list", {});
set_global("unread_ui", {});

alert_words.process_message = () => {};

const alice = {
    email: "alice@example.com",
    user_id: 32,
    full_name: "Alice Patel",
};

people.add_active_user(alice);

const denmark = {
    subscribed: false,
    name: "Denmark",
    stream_id: 101,
};
stream_data.add_sub(denmark);

function test_helper(side_effects) {
    const events = [];

    for (const side_effect of side_effects) {
        const parts = side_effect.split(".");
        const module = parts[0];
        const field = parts[1];

        global[module][field] = () => {
            events.push(side_effect);
        };
    }

    const self = {};

    self.verify = () => {
        assert.deepEqual(side_effects, events);
    };

    return self;
}

run_test("update_messages", () => {
    const original_message = {
        id: 111,
        display_recipient: denmark.name,
        flags: ["mentioned"],
        sender_id: alice.user_id,
        stream_id: denmark.stream_id,
        topic: "lunch",
        type: "stream",
    };

    message_store.add_message_metadata(original_message);
    message_store.set_message_booleans(original_message);

    assert.equal(original_message.mentioned, true);
    assert.equal(original_message.unread, true);

    assert.deepEqual(stream_topic_history.get_recent_topic_names(denmark.stream_id), ["lunch"]);

    unread.update_message_for_mention(original_message);
    assert(unread.unread_mentions_counter.has(original_message.id));

    const events = [
        {
            message_id: original_message.id,
            flags: [],
            orig_content: "old stuff",
            content: "**new content**",
            rendered_content: "<b>new content</b>",
        },
    ];

    current_msg_list.get_row = (message_id) => {
        assert.equal(message_id, 111);
        return ["row-stub"];
    };
    current_msg_list.view = {};

    let rendered_mgs;

    current_msg_list.view.rerender_messages = (msgs_to_rerender, message_content_edited) => {
        rendered_mgs = msgs_to_rerender;
        assert.equal(message_content_edited, true);
    };

    const side_effects = [
        "condense.un_cache_message_content_height",
        "message_edit.end_message_row_edit",
        "notifications.received_messages",
        "unread_ui.update_unread_counts",
        "stream_list.update_streams_sidebar",
        "pm_list.update_private_messages",
    ];

    const helper = test_helper(side_effects);

    page_params.realm_allow_edit_history = false;
    message_list.narrowed = "stub-to-ignore";

    // TEST THIS:
    message_events.update_messages(events);

    assert(!unread.unread_mentions_counter.has(original_message.id));

    helper.verify();

    assert.deepEqual(rendered_mgs, [
        {
            alerted: false,
            collapsed: false,
            content: "<b>new content</b>",
            display_recipient: denmark.name,
            historical: false,
            id: 111,
            is_stream: true,
            last_edit_timestamp: undefined,
            mentioned: false,
            mentioned_me_directly: false,
            raw_content: "**new content**",
            reactions: [],
            reply_to: alice.email,
            sender_email: alice.email,
            sender_full_name: alice.full_name,
            sender_id: 32,
            sent_by_me: false,
            starred: false,
            stream: denmark.name,
            stream_id: denmark.stream_id,
            topic: "lunch",
            type: "stream",
            unread: true,
        },
    ]);
});