#!/usr/bin/env bash

# shellcheck disable=SC1090
source "${XDG_DATA_HOME}/buddy-up/includes/utils.sh"

APP=bat
BAT_DEST="${XDG_DATA_HOME}/apps/releases/${APP}"
BAT_CURRENT="${BAT_DEST}/current"
BAT_VERSION=${BAT_VERSION:-0.18.1}
EXTRA_DEST="${XDG_DATA_HOME}/apps/releases/bat-extras"
EXTRA_CURRENT="${EXTRA_DEST}/current"
EXTRA_VERSION=${EXTRA_VERSION:-2021.04.06}

MAN_DIR=${XDG_DATA_HOME}/man/man1

OS=
ARCH=
case $(uname -s) in
    Linux*)                 OS=unknown-linux-gnu;;
    Darwin*)                OS=apple-darwin;;
    CYGWIN_NT*|Windows_NT*) OS=pc-windows-msvc;;
    *) >&2 echo "unsupported os"; return;
esac

case $(uname -m) in
    amd64*|x86_64*)     ARCH=x86_64;;
    i686*|i386*)        ARCH=i686;;
    arm|armv7*|armv6*)  ARCH=arm;;
    aarch64*|armv8*)    ARCH=arm64;;
    *) >&2 echo "unsupported architecture: $(uname -m)"; exit 1;;
esac

BAT_URL=https://github.com/sharkdp/bat/releases/download/v${BAT_VERSION}/bat-v${BAT_VERSION}-${ARCH}-${OS}.tar.gz
EXTRA_URL="https://github.com/eth-p/bat-extras/releases/download/v${EXTRA_VERSION}/bat-extras-${EXTRA_VERSION//\./}.zip"

set_symlink () {
    local dest_dir="$1"
    local dest_file="$2"
    local src_dir="$3"
    local src_file="$4"

    mkdir_if_missing "${dest_dir}"
    cd "${dest_dir}" || exit 1
    unlink_if_set "${dest_dir}/${dest_file}"
    ln -s "$(relative_path "${dest_dir}" "${src_dir}/${src_file}")" "${dest_file}"
    cd - > /dev/null || exit 1
}

extract_tarball "${BAT_URL}" "${BAT_DEST}/${BAT_VERSION}" "--strip-components 1"
set_current_link "${BAT_DEST}" "${BAT_VERSION}"

set_symlink "${XDG_BIN_HOME}"                   bat                   "${BAT_CURRENT}"              bat
set_symlink "${MAN_DIR}"                        bat.1                 "${BAT_CURRENT}"              bat.1
set_symlink "${XDG_CONFIG_HOME}/zsh/zshrc.d"    bat-autocomplete.zsh  "${BAT_CURRENT}/autocomplete" bat.zsh
set_symlink "${XDG_CONFIG_HOME}/fish/functions" bat-autocomplete.fish "${BAT_CURRENT}/autocomplete" bat.fish

extract_zip "${EXTRA_URL}" "${EXTRA_DEST}/${EXTRA_VERSION}"
set_current_link "${EXTRA_DEST}" "${EXTRA_VERSION}"

for file_path in "${EXTRA_CURRENT}"/bin/*; do
    file=$(basename "${file_path}")
    set_symlink "${XDG_BIN_HOME}" "${file}" "${EXTRA_CURRENT}/bin" "${file}"
done

for file_path in "${EXTRA_CURRENT}"/man/*; do
    file=$(basename "${file_path}")
    set_symlink "${MAN_DIR}" "${file}" "${EXTRA_CURRENT}/man" "${file}"
done

for file_path in "${EXTRA_CURRENT}"/doc/*; do
    file=$(basename "${file_path}")
    set_symlink "${XDG_DATA_HOME}/doc" "${file}" "${EXTRA_CURRENT}/doc" "${file}"
done