#!/usr/bin/env fish

set DOTFILES_REPO (pwd)

## add thing to dotfiles repository (path or file)
function add_dotfiles
    set system "$argv[1]"
    set local "$argv[2]"

    if grep -q -e "^$local" system_setup
        echo "folder $local already in repo!"
        return
    end

    if test -d "$system"
        cp -r "$system" "$local"
        rm -rf "$system"
    else if test -f "$system"
        cp "$system" "$local"
        rm -f "$system"
    else
        echo "unknown file type at $argv[1]"
        return
    end

    ln -s "$DOTFILES_REPO"/"$argv[2]" "$argv[1]"

    echo "$argv[2]        $argv[1]" >> system_setup
end

## link dotfiles everywhere
function restore_system
    for line in (cat system_setup)
        if test -z $line
            continue
        end
        
        set line (string split -n " " "$line")

        set local "$line[1]"
        set system "$line[2]"

        echo $local → $system

        rm -rf "$system"
        ln -s "$DOTFILES_REPO"/"$local" "$system"
    end
end

if test "$argv[1]" = "add"
    add_dotfiles $argv[2..-1]
else if test "$argv[1]" = "build"
    restore_system $argv[2..-1]
end