#!/bin/bash

set -eu

APPS_DIR="${HOME}/apps"

VERSION="0.25.2"
INSTALL_DIR="${APPS_DIR}/kitty"
INSTALLED_VERSION=""

if [[ -x "$(command -v kitty)" ]] ; then
  INSTALLED_VERSION="$(kitty --version | grep -o '[0-9.]\+')"
fi

if [[ "$VERSION" == "$INSTALLED_VERSION" ]] ; then
  echo "Kitty version ${VERSION} already installed."
  exit 0
fi

echo "Installing kitty version ${VERSION}..."

URL="https://github.com/kovidgoyal/kitty/releases/download/v${VERSION}/kitty-${VERSION}-x86_64.txz"

echo "Downloading from ${URL}..."
TARGET="$(download "$URL")"

if [[ -d "${INSTALL_DIR}" ]] ; then
  echo "Removing old kitty installation..."
  rm -rf "${INSTALL_DIR}"
fi

echo "Unpacking file ${TARGET}..."
mkdir -p "${INSTALL_DIR}"
tar --directory="${INSTALL_DIR}" -xf "${TARGET}"

echo "Creating link to kitty executable..."
mkdir -p "${HOME}/.local/bin"
ln -s --force "${INSTALL_DIR}/bin/kitty" "${HOME}/.local/bin/"

echo "Copy kitty.desktop file..."
mkdir -p "${HOME}/.local/share/applications"
cp "${INSTALL_DIR}/share/applications/kitty.desktop" "${HOME}/.local/share/applications/"
sed -i "s|Icon=kitty|Icon=${INSTALL_DIR}/share/icons/hicolor/256x256/apps/kitty.png|g" "${HOME}/.local/share/applications/kitty.desktop"
sed -i "s|Exec=kitty|Exec=${INSTALL_DIR}/bin/kitty|g" "${HOME}/.local/share/applications/kitty.desktop"