#!/bin/bash
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TESTING=0
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#Default variables
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SUBREDDITS=("Wallpapers")
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SORT=new
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USER=$(whoami)
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SIZE=1920x1080
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WRITE_TITLE=1
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TITLE_COLOR="white"
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TITLE_POSITION="Southeast"
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TITLE_SIZE=30
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#Set directories for testing
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if [ $TESTING != 1 ]; then
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CONFDIR="$HOME/.config"
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WALLDIR="$HOME/.wallpaper"
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else
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CONFDIR="$(dirname $(realpath "$0"))"
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WALLDIR="$(dirname $(realpath "$0"))"
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fi
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[ ! -d "$WALLDIR" ] && mkdir "$WALLDIR"
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[ ! -d "$CONFIR" ] && mkdir "$CONFDIR"
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source "$CONFDIR"/reddit-wallpaper-fetcher.conf &>/dev/null
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#Loud output for testing a changed config
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[ -z "$1" ] && LOUD="-s"
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#Initialise time from last fetch
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LATEST_TIME=0
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if [ -f "$WALLDIR"/json ]; then
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LATEST=$(cat "$WALLDIR"/json)
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LATEST_TIME=$(echo "$LATEST" | jq ".data.children[-1].data.created_utc")
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fi
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if [ "$LATEST_TIME" == "null" ]; then
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LATEST_TIME=0
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fi
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#Try subreddits for new images
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for i in "${SUBREDDITS[@]}"; do
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temp=$(curl "$LOUD" --user-agent "$USER" "https://www.reddit.com/r/$i.json?sort=$SORT&limit=1")
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time=$(echo "$temp" | jq ".data.children[-1].data.created_utc")
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if [ $(awk -v n1="$time" -v n2="$LATEST_TIME" 'BEGIN {printf (n1>n2?"1":"")}') ]; then
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LATEST="$temp"
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LATEST_TIME="$time"
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fi
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done
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#No Update to do
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if [ -f "$WALLDIR"/json ] && [ "$(cat "$WALLDIR"/json)" == "$LATEST" ]; then
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exit
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fi
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#Download image
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url=$(echo "$LATEST" | jq ".data.children[-1].data.url" | sed 's/"//g')
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if [ -n "$(echo $url | grep gallery)" ]; then
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media_id=$(echo "$LATEST" | jq ".data.children[-1].data.gallery_data.items[0].media_id" | sed 's/"//g')
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url=$(echo "$LATEST" | jq ".data.children[-1].data.media_metadata.$media_id.p[0].u" | sed 's/"//g;s/\?.*//g;s/preview/i/g')
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fi
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ext="$(echo "$url" | rev | cut -d'.' -f1 | rev)"
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curl "$url" "$LOUD" --output "$WALLDIR/temp.$ext"
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#Save image information
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echo "$LATEST" > "$WALLDIR"/json
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title=$(echo "$LATEST" | jq ".data.children[-1].data.title")
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echo "$title" > "$WALLDIR"/data.txt
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echo "$url" >> "$WALLDIR"/data.txt
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echo https://reddit.com$(echo "$LATEST" | jq ".data.children[-1].data.permalink" | sed 's/"//g') >> "$WALLDIR"/data.txt
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#Add image title
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convert "$WALLDIR/temp.$ext" -resize "$SIZE^" -gravity center -crop "$SIZE+0+0" -resize "$SIZE!" "$WALLDIR/wallpaper.jpg"
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rm "$WALLDIR/temp.$ext"
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if [ $WRITE_TITLE == 1 ]; then
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convert "$WALLDIR/wallpaper.jpg" -fill "$TITLE_COLOR" -gravity "$TITLE_POSITION" -pointsize "$TITLE_SIZE" -annotate 0 "$title" "$WALLDIR/wallpaper.jpg"
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fi
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