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

# Install the latest Zellij binary on Linux.
# https://zellij.dev/

# Only support Linux.
if [[ "$OSTYPE" != linux* ]]; then
    echo "This script only supports Linux."
    exit 1
fi

# Detect architecture.
arch="$(uname -m)"
case "$arch" in
x86_64)
    target="x86_64-unknown-linux-musl"
    ;;
aarch64)
    target="aarch64-unknown-linux-musl"
    ;;
*)
    echo "Unsupported architecture: $arch"
    exit 1
    ;;
esac

# Get the latest release URL.
echo "Fetching latest Zellij release..."
release_url="https://api.github.com/repos/zellij-org/zellij/releases/latest"
download_url=$(curl -s "$release_url" | grep -o "https://github.com/zellij-org/zellij/releases/download/[^\"]*/zellij-$target.tar.gz" | head -1)

if [[ -z "$download_url" ]]; then
    echo "Failed to find download URL for $target"
    exit 1
fi

# Create temp directory and download.
tmpdir=$(mktemp -d)
trap 'rm -rf "$tmpdir"' EXIT

echo "Downloading Zellij from $download_url..."
curl -sL "$download_url" -o "$tmpdir/zellij.tar.gz"

# Extract.
tar -xzf "$tmpdir/zellij.tar.gz" -C "$tmpdir"

# Install to ~/.local/bin.
install_dir="$HOME/.local/bin"
mkdir -p "$install_dir"

mv "$tmpdir/zellij" "$install_dir/zellij"
chmod +x "$install_dir/zellij"

echo "Zellij installed to $install_dir/zellij"
echo "Version: $($install_dir/zellij --version)"