#! /usr/bin/env sh

TEMPLATE_LINE_LENGHT=19

fd --type file . | while read -r file; do
    if grep --quiet 'The Trinitrix Project <soispha@vhack.eu, antifallobst@systemausfall.org>' "$file"; then
        filename="$(basename -- "$file")"
        extension="${filename##*.}"
        filename="${filename%.*}"

        # We need to differentiate, when removing the old copyright header, as some
        # formatters do weird things to the file
        case "$extension" in
        # normal '#' comments (these are 19 lines long)
        "Makefile" | "toml")
            sed --in-place "1,${TEMPLATE_LINE_LENGHT}d" "$file"
            ;;
        # normal '/* ... */' like comments (these are 21 lines long--'#' + 2)
        "c" | "ebnf" | "h" | "md" | "rs" | "tri")
            lenght="$((TEMPLATE_LINE_LENGHT + 2))"
            sed --in-place "1,${lenght}d;" "$file"
            ;;
        # alejandra (the nix formatter) removes the blank line after the comment,
        # thus only 18 lines
        "nix")
            lenght="$((TEMPLATE_LINE_LENGHT - 1))"
            sed --in-place "1,${lenght}d;" "$file"
            ;;
        # Shell needs a shebang on the first line, only after the first line can we
        # remove the 19 lines
        "sh")
            sed --in-place "2,${TEMPLATE_LINE_LENGHT}d;" "$file"
            ;;
        *)
            echo "File '$file' with extension '$extension' is not know yet, please add it!"
            ;;
        esac
    fi
done

nix fmt

licensure --in-place --project