#!/usr/bin/env bash
set -euo pipefail

version="5.2.2"
sha256="84098912789dc450e95697c4184fb8a90acbe5111c2ba4aede3fecb57806a168"
install_dir="${1:-${BLENDER_INSTALL_DIR:-${HOME}/.local/blender-${version}}}"

if [[ "$(uname -s)" != Linux || "$(uname -m)" != x86_64 ]]; then
    echo "error: this installer currently supports Linux x86_64 only" >&2
    exit 1
fi

if [[ -x "$install_dir/blender" ]]; then
    "$install_dir/blender" --version | head -n 1
    exit 0
fi

mkdir -p "$(dirname "$install_dir")"
tmp_dir="$(mktemp -d)"
trap 'rm -rf "$tmp_dir"' EXIT

archive="blender-${version}-linux-x64.tar.xz"
url="https://download.blender.org/release/Blender5.2/${archive}"

curl --fail --location --silent --show-error --output "$tmp_dir/$archive" "$url"
printf '%s  %s\n' "$sha256" "$tmp_dir/$archive" | sha256sum --check --status
tar --extract --xz --file "$tmp_dir/$archive" --directory "$tmp_dir"
mv "$tmp_dir/blender-${version}-linux-x64" "$install_dir"

"$install_dir/blender" --version | head -n 1