"use strict";

const {strict: assert} = require("assert");

const {mock_module, set_global, zrequire} = require("../zjsunit/namespace");
const {run_test} = require("../zjsunit/test");
const $ = require("../zjsunit/zjquery");

set_global("page_params", {
    search_pills_enabled: false,
});

const noop = () => {};

const narrow = mock_module("narrow");
const narrow_state = mock_module("narrow_state");
const search_suggestion = mock_module("search_suggestion");
mock_module("ui_util", {
    change_tab_to: noop,
});

const Filter = {};

mock_module("filter", {
    Filter,
});

set_global("setTimeout", (func) => func());

const search = zrequire("search");

run_test("update_button_visibility", () => {
    const search_query = $("#search_query");
    const search_button = $(".search_button");

    search_query.is = () => false;
    search_query.val("");
    narrow_state.active = () => false;
    search_button.prop("disabled", true);
    search.update_button_visibility();
    assert(search_button.prop("disabled"));

    search_query.is = () => true;
    search_query.val("");
    narrow_state.active = () => false;
    search_button.prop("disabled", true);
    search.update_button_visibility();
    assert(!search_button.prop("disabled"));

    search_query.is = () => false;
    search_query.val("Test search term");
    narrow_state.active = () => false;
    search_button.prop("disabled", true);
    search.update_button_visibility();
    assert(!search_button.prop("disabled"));

    search_query.is = () => false;
    search_query.val("");
    narrow_state.active = () => true;
    search_button.prop("disabled", true);
    search.update_button_visibility();
    assert(!search_button.prop("disabled"));
});

run_test("initialize", () => {
    const search_query_box = $("#search_query");
    const searchbox_form = $("#searchbox_form");
    const search_button = $(".search_button");

    search_suggestion.max_num_of_search_results = 999;
    search_query_box.typeahead = (opts) => {
        assert.equal(opts.fixed, true);
        assert.equal(opts.items, 999);
        assert.equal(opts.naturalSearch, true);
        assert.equal(opts.helpOnEmptyStrings, true);
        assert.equal(opts.matcher(), true);

        {
            const search_suggestions = {
                lookup_table: new Map([
                    [
                        "stream:Verona",
                        {
                            description: "Stream <strong>Ver</strong>ona",
                            search_string: "stream:Verona",
                        },
                    ],
                    [
                        "ver",
                        {
                            description: "Search for ver",
                            search_string: "ver",
                        },
                    ],
                ]),
                strings: ["ver", "stream:Verona"],
            };

            /* Test source */
            search_suggestion.get_suggestions = () => search_suggestions;
            const expected_source_value = search_suggestions.strings;
            const source = opts.source("ver");
            assert.equal(source, expected_source_value);

            /* Test highlighter */
            let expected_value = "Search for ver";
            assert.equal(opts.highlighter(source[0]), expected_value);

            expected_value = "Stream <strong>Ver</strong>ona";
            assert.equal(opts.highlighter(source[1]), expected_value);

            /* Test sorter */
            assert.equal(opts.sorter(search_suggestions.strings), search_suggestions.strings);
        }

        {
            let operators;
            let is_blurred;
            search_query_box.on("blur", () => {
                is_blurred = true;
            });
            /* Test updater */
            const _setup = (search_box_val) => {
                is_blurred = false;
                search_query_box.val(search_box_val);
                Filter.parse = (search_string) => {
                    assert.equal(search_string, search_box_val);
                    return operators;
                };
                narrow.activate = (raw_operators, options) => {
                    assert.deepEqual(raw_operators, operators);
                    assert.deepEqual(options, {trigger: "search"});
                };
            };

            operators = [
                {
                    negated: false,
                    operator: "search",
                    operand: "ver",
                },
            ];
            _setup("ver");
            assert.equal(opts.updater("ver"), "ver");
            assert(is_blurred);

            operators = [
                {
                    negated: false,
                    operator: "stream",
                    operand: "Verona",
                },
            ];
            _setup("stream:Verona");
            assert.equal(opts.updater("stream:Verona"), "stream:Verona");
            assert(is_blurred);

            search.__Rewire__("is_using_input_method", true);
            _setup("stream:Verona");
            assert.equal(opts.updater("stream:Verona"), "stream:Verona");
            assert(!is_blurred);

            search_query_box.off("blur");
        }
    };

    search.initialize();

    search_button.prop("disabled", true);
    search_query_box.trigger("focus");
    assert(!search_button.prop("disabled"));

    search_query_box.val("test string");
    narrow_state.search_string = () => "ver";
    search_query_box.trigger("blur");
    assert.equal(search_query_box.val(), "test string");

    search.__Rewire__("is_using_input_method", false);
    searchbox_form.trigger("compositionend");
    assert(search.is_using_input_method);

    const keydown = searchbox_form.get_on_handler("keydown");
    let default_prevented = false;
    let ev = {
        type: "keydown",
        which: 15,
        preventDefault() {
            default_prevented = true;
        },
    };
    search_query_box.is = () => false;
    assert.equal(keydown(ev), undefined);
    assert(!default_prevented);

    ev.which = 13;
    assert.equal(keydown(ev), undefined);
    assert(!default_prevented);

    ev.which = 13;
    search_query_box.is = () => true;
    assert.equal(keydown(ev), undefined);
    assert(default_prevented);

    ev = {
        type: "keyup",
    };
    let operators;
    let is_blurred;
    narrow_state.active = () => false;
    search_query_box.off("blur");
    search_query_box.on("blur", () => {
        is_blurred = true;
    });

    const _setup = (search_box_val) => {
        is_blurred = false;
        search_button.prop("disabled", false);
        search_query_box.val(search_box_val);
        Filter.parse = (search_string) => {
            assert.equal(search_string, search_box_val);
            return operators;
        };
        narrow.activate = (raw_operators, options) => {
            assert.deepEqual(raw_operators, operators);
            assert.deepEqual(options, {trigger: "search"});
        };
    };

    operators = [
        {
            negated: false,
            operator: "search",
            operand: "",
        },
    ];
    _setup("");

    ev.which = 15;
    search_query_box.is = () => false;
    searchbox_form.trigger(ev);

    assert(!is_blurred);
    assert(!search_button.prop("disabled"));

    ev.which = 13;
    search_query_box.is = () => false;
    searchbox_form.trigger(ev);

    assert(!is_blurred);
    assert(!search_button.prop("disabled"));

    ev.which = 13;
    search_query_box.is = () => true;
    searchbox_form.trigger(ev);
    assert(is_blurred);

    _setup("ver");
    search.__Rewire__("is_using_input_method", true);
    searchbox_form.trigger(ev);
    // No change on Enter keyup event when using input tool
    assert(!is_blurred);
    assert(!search_button.prop("disabled"));

    _setup("ver");
    ev.which = 13;
    search_query_box.is = () => true;
    searchbox_form.trigger(ev);
    assert(is_blurred);
    assert(!search_button.prop("disabled"));
});

run_test("initiate_search", () => {
    // open typeahead and select text when navbar is open
    // this implicitly expects the code to used the chained
    // function calls, which is something to keep in mind if
    // this test ever fails unexpectedly.
    narrow_state.filter = () => ({is_search: () => true});
    let typeahead_forced_open = false;
    let is_searchbox_text_selected = false;
    $("#search_query").typeahead = (lookup) => {
        if (lookup === "lookup") {
            typeahead_forced_open = true;
        }
        return $("#search_query");
    };
    $("#search_query").on("select", () => {
        is_searchbox_text_selected = true;
    });

    search.initiate_search();
    assert(typeahead_forced_open);
    assert(is_searchbox_text_selected);
    assert.equal($("#search_query").val(), "ver");

    // test that we append space for user convenience
    narrow_state.filter = () => ({is_search: () => false});
    search.initiate_search();
    assert.equal($("#search_query").val(), "ver ");
});