#!/bin/bash

cache_dir="$HOME/.cache/eww"
cache="$cache_dir/notifications.txt"

[ ! -d $cache_dir ] && mkdir $cache_dir
[ ! -f $cache ] && touch $cache

create_cache () {
    case $DUNST_URGENCY in
        LOW|NORMAL|CRITICAL) 
            urgency=$DUNST_URGENCY
        ;;
        *) 
            urgency="OTHER"
        ;;
    esac

    TIMESTAMP=$(date +%H:%M)

    [ "$DUNST_SUMMARY" = "" ] && summary="Summary unavailable." || summary="$DUNST_SUMMARY"
    [ "$DUNST_BODY" = "" ] && body="Body unavailable." || body="$(printf "$DUNST_BODY" | perl -MHTML::Entities -pe 'decode_entities($_);')"

    # TODO: Getting and caching web notification icons (dunstctl history won't show the icon path :()
    if [[ $DUNST_ICON_PATH == "" ]]; then
        APP_NAME=$(echo $DUNST_APP_NAME | awk '{print tolower($0)}')
        ICON_PATH=/usr/share/icons/Papirus/128x128/apps/$APP_NAME.svg
    else
        FIXED_ICON_PATH=$(echo ${DUNST_ICON_PATH} | sed 's/32x32/48x48/g')
        ICON_PATH=$FIXED_ICON_PATH
    fi

    # If you have a mpris player that send notification you can add one here just follow the layout
        if [[ $DUNST_APP_NAME == "Spotify" ]]; then
        ICON_PATH=$(~./config/bspwm/scripts/music cover-notification spotify)
    fi
    if [[ $DUNST_APP_NAME == "Music Player Daemon" ]]; then
        if [[ $DUNST_BODY =~ "by" ]]; then
            ICON_PATH=$(~./config/bspwm/scripts/music cover-notification mpd)
        else
            ICON_PATH=/usr/share/icons/Papirus/128x128/apps/mpd.svg
        fi
    fi

    if [[ $DUNST_APP_NAME == "Screenshot" ]]; then
        echo '(notification-card-screenshot :class "notification-card $notification-card-screenshot" :U "LOW" :SL "'$DUNST_ID'" :summary "'$summary'" :image "'$ICON_PATH'" :application "'$DUNST_APP_NAME'" :timestamp "'$TIMESTAMP'")' \
        | cat - "$cache" \
        | sponge "$cache" 
    elif [[ $DUNST_APP_NAME == "Volume" ]]; then
	    echo 'Null'  # This is still a work in progress, for now this will be ignored by the notification-panel (Also you can follow the layout if you want to add ignore notifications)
    elif [[ $DUNST_APP_NAME == "Brightness" ]]; then
	echo 'Null'
    else
        echo '(notification-card :class "notification-card notification-card-'$DUNST_APP_NAME'" :U "'$DUNST_URGENCY'" :SL "'$DUNST_ID'" :body "'$body'" :summary "'$summary'" :image "'$ICON_PATH'" :application "'$DUNST_APP_NAME'" :timestamp "'$TIMESTAMP'")' \
        | cat - "$cache" \
        | sponge "$cache"
    fi
}

make_literal () {
    caches="$(tr '\n' ' ' < "$cache")"

    if [[ "$caches" == "" ]]; then
        echo '(box :class "notifications-empty-box" :height 550 :orientation "v" :space-evenly "false" (image :class "notifications-empty-banner" :valign "end" :vexpand true :path "~/.config/bspwm/assets/icons/notifications-off.svg" :image-width 300 :image-height 200) (label :vexpand true :valign "start" :wrap true :class "notifications-empty-label" :text "No Notifications"))'
    else    
        echo "(scroll :height 550 :vscroll true (box :orientation 'v' :class 'notification-scroll-box' :spacing 10 :space-evenly 'false' $caches))"
    fi
}

clear_logs () {
    killall dunst 2>/dev/null
    dunst -config $HOME/.config/dunst/dunstrc & 
    echo > "$cache"
    rm -rf $HOME/.cache/eww/music/notification-cover/*.png
}

subscribe () {
    make_literal
    
    lines=$(cat $cache | wc -l)
    
    while sleep 0.1; do
        
        new=$(cat $cache | wc -l)

        [[ $lines -ne $new ]] && lines=$new && echo
    done | read_literal
}

read_literal () {
    while read -r _; do
        make_literal 
    done
}

remove_line () {
    sed -i '/SL "'$1'"/d' "$cache"
}

case $1 in
    pop)
        sed -i '1d' "$cache"
    ;;
    drop)
        sed -i '$d' "$cache"
    ;;
    remove)
        remove_line $2
    ;;
    clear) 
        clear_logs
    ;;
    subscribe)
        subscribe
    ;;
    criticals)
        printf '%03d\n' $(cat $cache | grep CRITICAL | wc --lines)
    ;;
    lows)
        printf '%03d\n' $(cat $cache | grep LOW | wc --lines)
    ;;
    normals)
        printf '%03d\n' $(cat $cache | grep NORMAL | wc --lines)
    ;;
    *) 
        create_cache
    ;;
esac

sed -i '/^$/d' "$cache"