#!/bin/bash
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IMAGE_REGEX='"url": "https:\/\/i\.redd\.it\/[a-z0-9]*\.\w{3,4}\", "subreddit_subscribers": '
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TITLE_REGEX='"clicked": (true|false), "title": "[a-zA-Z0-9.\[\]\(\) ]*", "link_flair_richtext": \['
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TIME_REGEX='"subreddit_subscribers": \d*, "created_utc": [\d.]*, "num_crossposts": '
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PERMALINK_REGEX=', "permalink": "\/r\/[A-Za-z0-9\/_]*", "parent_whitelist_status": '
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SUBREDDITS=("EarthPorn")
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SORT=new
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USER=$(whoami)
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source $HOME/.config/reddit-wallpaper-fetcher.conf &>/dev/null
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LATEST_TIME=0
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if [ -f $HOME/.wallpaper/json ]; then
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LATEST=$(cat ~/.wallpaper/json)
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LATEST_TIME=$(echo $LATEST | grep -oP "$TIME_REGEX" | tail -n1 | grep -oP '"created_utc": [\d.]*' | grep -oP '[\d.]*')
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fi
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for i in "${SUBREDDITS[@]}"; do
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temp=$(curl -s --user-agent $USER "https://www.reddit.com/r/$i.json?sort=$SORT&limit=1")
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time=$(echo $temp | grep -oP "$TIME_REGEX" | tail -n1 | grep -oP '"created_utc": [\d.]*' | grep -oP '[\d.]*')
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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=$time
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fi
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done
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url=$(echo $LATEST | grep -oP "$IMAGE_REGEX" | tail -n1 | grep -oP '"https:\/\/.*",' | grep -oP '".*"' | sed 's/"//g')
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curl -s -o "$HOME/.wallpaper/temp.$(echo $url | rev | cut -d'.' -f1 | rev)" "$url"
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