import $ from "jquery";

import {detect_user_os} from "./tabbed-instructions";
import render_tabs from "./team";

export function path_parts() {
    return window.location.pathname.split("/").filter((chunk) => chunk !== "");
}

const hello_events = function () {
    let counter = 0;
    $(window).on("scroll", function () {
        if (counter % 2 === 0) {
            $(".screen.hero-screen .message-feed").css(
                "transform",
                "translateY(-" + $(this).scrollTop() / 5 + "px)",
            );
        }
        counter += 1;
    });

    $(".footer").addClass("hello");
};

const apps_events = function () {
    const info = {
        windows: {
            image: "/static/images/landing-page/microsoft.png",
            alt: "Windows",
            description:
                "Zulip for Windows is even better than Zulip on the web, with a cleaner look, tray integration, native notifications, and support for multiple Zulip accounts.",
            download_link: "/apps/download/windows",
            show_instructions: true,
            install_guide: "/help/desktop-app-install-guide",
            app_type: "desktop",
        },
        mac: {
            image: "/static/images/landing-page/macbook.png",
            alt: "macOS",
            description:
                "Zulip on macOS is even better than Zulip on the web, with a cleaner look, tray integration, native notifications, and support for multiple Zulip accounts.",
            download_link: "/apps/download/mac",
            mac_arm64_link: "/apps/download/mac-arm64",
            show_instructions: true,
            install_guide: "/help/desktop-app-install-guide",
            app_type: "desktop",
        },
        android: {
            image: "/static/images/app-screenshots/zulip-android.png",
            alt: "Android",
            description: "Zulip's native Android app makes it easy to keep up while on the go.",
            show_instructions: false,
            play_store_link: "https://play.google.com/store/apps/details?id=com.zulipmobile",
            download_link: "https://github.com/zulip/zulip-mobile/releases/latest",
            app_type: "mobile",
        },
        ios: {
            image: "/static/images/app-screenshots/zulip-iphone-rough.png",
            alt: "iOS",
            description: "Zulip's native iOS app makes it easy to keep up while on the go.",
            show_instructions: false,
            app_store_link: "https://itunes.apple.com/us/app/zulip/id1203036395",
            app_type: "mobile",
        },
        linux: {
            image: "/static/images/landing-page/ubuntu.png",
            alt: "Linux",
            description:
                "Zulip on the Linux desktop is even better than Zulip on the web, with a cleaner look, tray integration, native notifications, and support for multiple Zulip accounts.",
            download_link: "/apps/download/linux",
            show_instructions: true,
            install_guide: "/help/desktop-app-install-guide",
            app_type: "desktop",
        },
    };

    let version;

    function get_version_from_path() {
        let result;
        const parts = path_parts();

        for (const version of Object.keys(info)) {
            if (parts.includes(version)) {
                result = version;
            }
        }

        result = result || detect_user_os();
        return result;
    }

    const update_page = function () {
        const $download_instructions = $(".download-instructions");
        const $third_party_apps = $("#third-party-apps");
        const $download_android_apk = $("#download-android-apk");
        const $download_from_google_play_store = $(".download-from-google-play-store");
        const $download_from_apple_app_store = $(".download-from-apple-app-store");
        const $download_mac_arm64 = $("#download-mac-arm64");
        const $desktop_download_link = $(".desktop-download-link");
        const version_info = info[version];

        $(".info .platform").text(version_info.alt);
        $(".info .description").text(version_info.description);
        $desktop_download_link.attr("href", version_info.download_link);
        $download_from_google_play_store.attr("href", version_info.play_store_link);
        $download_from_apple_app_store.attr("href", version_info.app_store_link);
        $download_android_apk.attr("href", version_info.download_link);
        $download_mac_arm64.attr("href", version_info.mac_arm64_link);
        $(".image img").attr("src", version_info.image);
        $download_instructions.find("a").attr("href", version_info.install_guide);

        $download_instructions.toggle(version_info.show_instructions);

        $third_party_apps.toggle(version_info.app_type === "desktop");
        $desktop_download_link.toggle(version_info.app_type === "desktop");
        $download_android_apk.toggle(version === "android");
        $download_from_google_play_store.toggle(version === "android");
        $download_from_apple_app_store.toggle(version === "ios");
        $download_mac_arm64.toggle(version === "mac");
    };

    // init
    version = get_version_from_path();
    update_page();
};

const events = function () {
    // get the location url like `zulip.com/features/`, cut off the trailing
    // `/` and then split by `/` to get ["zulip.com", "features"], then
    // pop the last element to get the current section (eg. `features`).
    const location = window.location.pathname.replace(/\/$/, "").split(/\//).pop();

    $(`[data-on-page='${CSS.escape(location)}']`).addClass("active");

    $("body").on("click", (e) => {
        const $e = $(e.target);

        if ($e.is("nav ul .exit")) {
            $("nav ul").css("transform", "translate(-350px, 0)");
            // See https://ishadeed.com/article/layout-flickering/ for
            // more context as to why the following timeout is important.
            setTimeout(() => {
                $("nav ul").removeClass("show");
                $("nav ul").css("transform", "");
                $("body").removeClass("noscroll");
            }, 500);
        }

        if ($("nav ul.show") && !$e.closest("nav ul.show").length && !$e.is("nav ul.show")) {
            $("nav ul").removeClass("show");
            $("body").removeClass("noscroll");
        }
    });

    $(".hamburger").on("click", (e) => {
        $("nav ul").addClass("show");
        $("body").addClass("noscroll");
        e.stopPropagation();
    });

    if (path_parts().includes("apps")) {
        apps_events();
    }

    if (path_parts().includes("hello")) {
        hello_events();
    }
};

$(() => {
    // Initiate the bootstrap carousel logic
    $(".carousel").carousel({
        interval: false,
    });

    // Move to the next slide on clicking inside the carousel container
    $(".carousel-inner .item-container").on("click", function (e) {
        const get_tag_name = e.target.tagName.toLowerCase();
        const is_button = get_tag_name === "button";
        const is_link = get_tag_name === "a";
        const is_last_slide = $("#tour-carousel .carousel-inner .item:last-child").hasClass(
            "active",
        );

        // Do not trigger this event if user clicks on a button, link
        // or if it's the last slide
        const move_slide_forward = !is_button && !is_link && !is_last_slide;

        if (move_slide_forward) {
            $(this).closest(".carousel").carousel("next");
        }
    });

    $(".carousel").on("slid", function () {
        const $this = $(this);
        $this.find(".visibility-control").show();
        if ($this.find(".carousel-inner .item").first().hasClass("active")) {
            $this.find(".left.visibility-control").hide();
        } else if ($this.find(".carousel-inner .item").last().hasClass("active")) {
            $this.find(".right.visibility-control").hide();
        }
    });

    // Set up events / categories / search
    events();

    if (window.location.pathname === "/team/") {
        render_tabs();
    }

    // Source: https://stackoverflow.com/questions/819416/adjust-width-and-height-of-iframe-to-fit-with-content-in-it
    // Resize tweet to avoid overlapping with image. Since tweet uses an iframe which doesn't adjust with
    // screen resize, we need to manually adjust its width.

    function resizeIFrameToFitContent(iFrame) {
        $(iFrame).width("38vw");
    }

    window.addEventListener("resize", () => {
        const iframes = document.querySelectorAll(".twitter-tweet iframe");
        for (const iframe of iframes) {
            resizeIFrameToFitContent(iframe);
        }
    });
});

// Scroll to anchor link when clicked. Note that help.js has a similar
// function; this file and help.js are never included on the same
// page.
$(document).on("click", ".markdown h1, .markdown h2, .markdown h3", function () {
    window.location.hash = $(this).attr("id");
});