#!/usr/bin/env bash

# https://vaneyckt.io/posts/safer_bash_scripts_with_set_euxo_pipefail/
set -euxo pipefail

function add_github_link_to_examples {
    local examples_dir_path="$1"

    local github_logo_svg=$(cat <<'EOF'
<svg viewBox="0 0 98 96" height="25" xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" clip-rule="evenodd" role="img" id="gh-logo">
<path d='M48.854 0C21.839 0 0 22 0 49.217c0 21.756 13.993 40.172 33.405 46.69 2.427.49 3.316-1.059 3.316-2.362 0-1.141-.08-5.052-.08-9.127-13.59 2.934-16.42-5.867-16.42-5.867-2.184-5.704-5.42-7.17-5.42-7.17-4.448-3.015.324-3.015.324-3.015 4.934.326 7.523 5.052 7.523 5.052 4.367 7.496 11.404 5.378 14.235 4.074.404-3.178 1.699-5.378 3.074-6.6-10.839-1.141-22.243-5.378-22.243-24.283 0-5.378 1.94-9.778 5.014-13.2-.485-1.222-2.184-6.275.486-13.038 0 0 4.125-1.304 13.426 5.052a46.97 46.97 0 0 1 12.214-1.63c4.125 0 8.33.571 12.213 1.63 9.302-6.356 13.427-5.052 13.427-5.052 2.67 6.763.97 11.816.485 13.038 3.155 3.422 5.015 7.822 5.015 13.2 0 18.905-11.404 23.06-22.324 24.283 1.78 1.548 3.316 4.481 3.316 9.126 0 6.6-.08 11.897-.08 13.526 0 1.304.89 2.853 3.316 2.364 19.412-6.52 33.405-24.935 33.405-46.691C97.707 22 75.788 0 48.854 0z'></path>
</svg>
EOF
    )

    # Use specific example link (e.g. https://github.com/roc-lang/examples/tree/main/examples/FizzBuzz) for every example
    local examples_link="https://github.com/roc-lang/examples/tree/main/examples"

    # Insert a github link to the example in HTML
    find "$examples_dir_path" -type f -name "README.html" -exec perl scripts/add-link.pl "$examples_dir_path" "$examples_link" "$github_logo_svg" {} \;
}