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import { desktopEntrySubs } from "@/utils/icons";
import { bind, GLib, register, timeout, Variable } from "astal";
import { Astal, Gtk, Widget } from "astal/gtk3";
import { notifpopups as config } from "config";
import AstalNotifd from "gi://AstalNotifd";

const urgencyToString = (urgency: AstalNotifd.Urgency) => {
    switch (urgency) {
        case AstalNotifd.Urgency.LOW:
            return "low";
        case AstalNotifd.Urgency.NORMAL:
            return "normal";
        case AstalNotifd.Urgency.CRITICAL:
            return "critical";
    }
};

const getTime = (time: number) => {
    const messageTime = GLib.DateTime.new_from_unix_local(time);
    const now = GLib.DateTime.new_now_local();
    const todayDay = now.get_day_of_year();

    if (config.agoTime) {
        const diff = now.difference(messageTime) / 1e6;
        if (diff < 60) return "Now";
        if (diff < 3600) {
            const d = Math.floor(diff / 60);
            return `${d} min${d === 1 ? "" : "s"} ago`;
        }
        if (diff < 86400) {
            const d = Math.floor(diff / 3600);
            return `${d} hour${d === 1 ? "" : "s"} ago`;
        }
    } else if (messageTime.get_day_of_year() === todayDay) {
        const aMinuteAgo = GLib.DateTime.new_now_local().add_seconds(-60);
        return aMinuteAgo !== null && messageTime.compare(aMinuteAgo) > 0 ? "Now" : messageTime.format("%H:%M")!;
    }

    if (messageTime.get_day_of_year() === todayDay - 1) return "Yesterday";
    return messageTime.format("%d/%m")!;
};

const AppIcon = ({ appIcon, desktopEntry }: { appIcon: string; desktopEntry: string }) => {
    // Try app icon
    let icon = Astal.Icon.lookup_icon(appIcon) && appIcon;
    // Try desktop entry
    if (!icon) {
        if (desktopEntrySubs.hasOwnProperty(desktopEntry)) icon = desktopEntrySubs[desktopEntry];
        else if (Astal.Icon.lookup_icon(desktopEntry)) icon = desktopEntry;
    }
    return icon ? <icon className="app-icon" icon={icon} /> : null;
};

const Image = ({ icon }: { icon: string }) => {
    if (GLib.file_test(icon, GLib.FileTest.EXISTS))
        return (
            <box
                valign={Gtk.Align.START}
                className="image"
                css={`
                    background-image: url("${icon}");
                `}
            />
        );
    if (Astal.Icon.lookup_icon(icon)) return <icon valign={Gtk.Align.START} className="image" icon={icon} />;
    return null;
};

@register()
export default class Notification extends Widget.Box {
    readonly #revealer;
    #destroyed = false;

    constructor({ notification, popup }: { notification: AstalNotifd.Notification; popup?: boolean }) {
        super({ className: "notification" });

        const time = Variable(getTime(notification.time)).poll(60000, () => getTime(notification.time));

        this.#revealer = (
            <revealer
                revealChild={popup}
                transitionType={Gtk.RevealerTransitionType.SLIDE_DOWN}
                transitionDuration={150}
            >
                <box className="wrapper">
                    <box vertical className={`inner ${urgencyToString(notification.urgency)}`}>
                        <box className="header">
                            <AppIcon appIcon={notification.appIcon} desktopEntry={notification.appName} />
                            <label className="app-name" label={notification.appName ?? "Unknown"} />
                            <box hexpand />
                            <label className="time" label={bind(time)} onDestroy={() => time.drop()} />
                        </box>
                        <box hexpand className="separator" />
                        <box className="content">
                            {notification.image && <Image icon={notification.image} />}
                            <box vertical>
                                <label className="summary" xalign={0} label={notification.summary} truncate />
                                {notification.body && (
                                    <label
                                        className="body"
                                        xalign={0}
                                        label={popup ? notification.body.split("\n")[0] : notification.body}
                                        wrap
                                        useMarkup
                                        lines={popup ? 1 : -1}
                                        truncate={popup}
                                    />
                                )}
                            </box>
                        </box>
                        {!popup && (
                            <box className="actions">
                                <button
                                    hexpand
                                    cursor="pointer"
                                    onClicked={() => notification.dismiss()}
                                    label="Close"
                                />
                                {notification.actions.map(a => (
                                    <button hexpand cursor="pointer" onClicked={() => notification.invoke(a.id)}>
                                        {notification.actionIcons ? <icon icon={a.label} /> : a.label}
                                    </button>
                                ))}
                            </box>
                        )}
                    </box>
                </box>
            </revealer>
        ) as Widget.Revealer;
        this.add(this.#revealer);

        // Init animation
        const width = this.get_preferred_width()[1];
        this.css = `margin-left: ${width}px; margin-right: -${width}px;`;
        timeout(1, () => {
            this.#revealer.revealChild = true;
            this.css = `transition: 300ms cubic-bezier(0.05, 0.9, 0.1, 1.1); margin-left: 0; margin-right: 0;`;
        });

        // Close popup after timeout if transient or expire enabled in config
        if (popup && (config.expire || notification.transient))
            timeout(
                notification.expireTimeout > 0
                    ? notification.expireTimeout
                    : notification.urgency === AstalNotifd.Urgency.CRITICAL
                    ? 10000
                    : 5000,
                () => this.destroyWithAnims()
            );
    }

    destroyWithAnims() {
        if (this.#destroyed) return;
        this.#destroyed = true;

        const animTime = 120;
        const animMargin = this.get_allocated_width();
        this.css = `transition: ${animTime}ms cubic-bezier(0.85, 0, 0.15, 1);
                    margin-left: ${animMargin}px; margin-right: -${animMargin}px;`;
        timeout(animTime, () => {
            this.#revealer.revealChild = false;
            timeout(this.#revealer.transitionDuration, () => this.destroy());
        });
    }
}