"use strict";

const assert = require("node:assert/strict");

const {noop} = require("./test.cjs");
const $ = require("./zjquery.cjs");

class FakeComposeBox {
    constructor() {
        this.$send_message_form = $("#send_message_form");
        this.$content_textarea = $("textarea#compose-textarea");
        this.$preview_message_area = $("#compose .preview_message_area");

        // Simulate DOM relationships
        this.$send_message_form.set_find_results(".message-textarea", this.$content_textarea);

        this.$send_message_form.set_find_results(
            ".message-limit-indicator",
            $(".message-limit-indicator"),
        );

        const $message_row_stub = $.create("message_row_stub");
        this.$content_textarea.closest = (selector) => {
            assert.equal(selector, ".message_row");
            $message_row_stub.length = 0;
            return $message_row_stub;
        };

        this.reset();
    }

    reset() {
        $(".message-limit-indicator").html("");
        $(".message-limit-indicator").text("");

        $("#compose_banners .user_not_subscribed").length = 0;

        this.$content_textarea.toggleClass = noop;
        this.$content_textarea.set_height(50);
        this.$content_textarea.val("default message");
        this.$content_textarea.trigger("blur");

        this.$preview_message_area.css = noop;
        $(".compose-submit-button .loader").show();
    }

    show_message_preview() {
        this.$preview_message_area.show();
        $("#compose .undo_markdown_preview").show();
        $("#compose .markdown_preview").hide();
        $("#compose").addClass("preview_mode");
    }

    hide_message_preview() {
        this.$preview_message_area.hide();
        $("#compose .markdown_preview").show();
        $("#compose .undo_markdown_preview").hide();
        $("#compose").removeClass("preview_mode");
    }

    textarea_val() {
        return this.$content_textarea.val();
    }

    preview_content_html() {
        return $("#compose .preview_content").html();
    }

    compose_spinner_selector() {
        return ".compose-submit-button .loader";
    }

    markdown_spinner_selector() {
        return "#compose .markdown_preview_spinner";
    }

    set_topic_val(topic_name) {
        $("input#stream_message_recipient_topic").val(topic_name);
    }

    set_textarea_val(val) {
        this.$content_textarea.val(val);
    }

    blur_textarea() {
        this.$content_textarea.trigger("blur");
    }

    show_submit_button_spinner() {
        $(".compose-submit-button .loader").show();
    }

    set_textarea_toggle_class_function(f) {
        this.$content_textarea.toggleClass = f;
    }

    is_recipient_not_subscribed_banner_visible() {
        return $("#compose_banners .recipient_not_subscribed").visible();
    }

    is_textarea_focused() {
        return this.$content_textarea.is_focused();
    }

    is_submit_button_spinner_visible() {
        return $(this.compose_spinner_selector()).visible();
    }

    trigger_submit_handler_on_compose_form(event) {
        $("#compose form").get_on_handler("submit")(event);
    }

    click_on_markdown_preview_icon(event) {
        $("#compose").get_on_handler("click", ".markdown_preview")(event);
    }

    click_on_undo_markdown_preview_icon(event) {
        $("#compose").get_on_handler("click", ".undo_markdown_preview")(event);
    }

    click_on_upload_attachment_icon(event) {
        $("#compose").get_on_handler("click", ".compose_upload_file")(event);
    }

    set_click_handler_for_upload_file_input_element(f) {
        $("#compose .file_input").on("click", f);
    }

    assert_preview_mode_is_off() {
        assert.ok(!this.$preview_message_area.visible());
        assert.ok(!$("#compose .undo_markdown_preview").visible());
        assert.ok($("#compose .markdown_preview").visible());
        assert.ok(!$("#compose").hasClass("preview_mode"));
    }

    assert_preview_mode_is_on() {
        assert.ok(this.$preview_message_area.visible());
        assert.ok(!$("#compose .markdown_preview").visible());
        assert.ok($("#compose .undo_markdown_preview").visible());
        assert.ok($("#compose").hasClass("preview_mode"));
    }

    assert_message_size_is_over_the_limit(desired_html) {
        // Indicator should show red colored text
        assert.equal($(".message-limit-indicator").html(), desired_html);

        assert.ok(this.$content_textarea.hasClass("textarea-over-limit"));
        assert.ok($(".message-limit-indicator").hasClass("textarea-over-limit"));
        assert.ok($(".message-send-controls").hasClass("disabled-message-send-controls"));
    }

    assert_message_size_is_under_the_limit(desired_html) {
        // Work around the quirk that our validation code
        // arbitrarily switches between html() and text(),
        // and zjquery doesn't unify text and html.
        if (desired_html) {
            assert.equal($(".message-limit-indicator").html(), desired_html);
        } else {
            assert.equal($(".message-limit-indicator").text(), "");
        }

        assert.ok(!this.$content_textarea.hasClass("textarea-over-limit"));
        assert.ok(!$(".message-limit-indicator").hasClass("textarea-over-limit"));
        assert.ok(!$(".message-send-controls").hasClass("disabled-message-send-controls"));
    }
}

module.exports = {FakeComposeBox};