#!/usr/bin/env bash

set -eu

# Fallback values
DOTFILES_FALLBACK_PATH="$HOME/.dotfiles"
DOTFILES_FALLBACK_REPOSITORY="https://github.com/rokoucha/dotfiles"

# Parse options and override fallback values
while getopts p:r: OPT
do
    case $OPT in
        p)  DOTFILES_FALLBACK_PATH="$OPTARG"
            ;;
        r)  DOTFILES_FALLBACK_REPOSITORY="$OPTARG"
            ;;
        \?) exit 1
            ;;
    esac
done
shift $((OPTIND - 1))

# Get config path
if [ "${XDG_CONFIG_HOME+defined}" ]; then
    DOTFILES_CONF_PATH="$XDG_CONFIG_HOME/dotfiles/config"
else
    DOTFILES_CONF_PATH="$HOME/.config/dotfiles/config"
fi

# Load if config exists
if [ -f "$DOTFILES_CONF_PATH" ]; then
    # shellcheck disable=SC1090
    source "$DOTFILES_CONF_PATH"

# Use fallback value
elif [ -f "$DOTFILES_FALLBACK_PATH/Makefile" ]; then
    echo "===> Dotfiles config file doesn't exist, Use fallback path $DOTFILES_FALLBACK_PATH"
    echo "===> You have to execute 'dotfiles deploy' to fix this issue."
    DOTFILES_PATH="$DOTFILES_FALLBACK_PATH"

# Fetch dotfiles
else
    echo "===> Dotfiles doesn't exist..."
    echo "===> Fetch $DOTFILES_FALLBACK_REPOSITORY to $DOTFILES_FALLBACK_PATH"

    # Clone with git
    if type git >/dev/null 2>&1; then
        git clone "$DOTFILES_FALLBACK_REPOSITORY.git" "$DOTFILES_FALLBACK_PATH"

    # Fetch with curl & tar
    elif type curl >/dev/null 2>&1; then
        EXTRACT_PATH=$(dirname "$DOTFILES_FALLBACK_PATH")
        REPOSITORY_NAME=$(basename "$DOTFILES_FALLBACK_REPOSITORY")

        mkdir -p "$EXTRACT_PATH"
        curl -L "$DOTFILES_FALLBACK_REPOSITORY/archive/master.tar.gz" | tar vxz -C "$EXTRACT_PATH"
        mv "$EXTRACT_PATH/$REPOSITORY_NAME-master" "$DOTFILES_FALLBACK_PATH"

    # Cannot fetch dotfiles...
    else
        echo "===> You must install curl or git to fetch dotfiles..."
        exit 1
    fi

    # Use fallback path
    DOTFILES_PATH="$DOTFILES_FALLBACK_PATH"
fi

pushd "$DOTFILES_PATH" > /dev/null || exit

make --no-print-directory "$@"

popd > /dev/null || exit