#!/bin/bash
domainprefix="https://url.megumin.tech/"
not_found=false

if [[ ${get_data[u]} ]]; then
    id=${get_data[u]}
    if [[ -f storage/shortener/$id ]]; then
        meta[redirect]=$(cat storage/shortener/$id)
    else
        not_found=true
    fi
fi

meta[title]="url shortener i guess"
source templates/head.sh

if [[ $not_found == "true" ]]; then
    echo "<h1>ID not found</h1>"
else
    if [[ ${post_data[url]} ]]; then
        if [[ ! -d storage/shortener ]]; then
            mkdir storage/shortener
        fi
        id=$(dd if=/dev/urandom bs=256 count=1 | sha1sum | cut -c 1-8)
        link=$(printf $(sed 's/%/\\x/g' <<< ${post_data[url]}))
        echo -n $link > storage/shortener/$id
        echo "<p>URL created: <a href='$domainprefix?u=$id'>link</a></p>"
    else
        echo '<h1>Revolutionary URL shortener</h1>
    <form method="POST">
        <input type="text" name="url" placeholder="URL">
        <button type="submit">Submit</button>
    </form>';
    fi
fi