#!/usr/bin/env bash
# =============================================================================
#  update-neovim.sh — chezmoi-managed, deployed to ~/.local/bin/update-neovim.sh
#
#  Installs or upgrades neovim from the official binary tarball.
#  Bump NVIM_TARGET_VERSION to upgrade. Topgrade calls this via
#  ~/.config/topgrade.toml.
#
#  Idempotent: no-op if installed version matches target.
# =============================================================================
set -euo pipefail

NVIM_TARGET_VERSION="v0.11.4"

ARCH="$(uname -m)"
case "$ARCH" in
    x86_64)        NVIM_TARBALL="nvim-linux64.tar.gz" ;;
    aarch64|arm64) NVIM_TARBALL="nvim-linux-arm64.tar.gz" ;;
    *)
        echo "unsupported arch: $ARCH" >&2
        exit 1
        ;;
esac

if command -v nvim >/dev/null 2>&1; then
    INSTALLED_VER="$(nvim --version 2>/dev/null | head -1 | awk '{print $2}')"
    if [[ "$INSTALLED_VER" == "$NVIM_TARGET_VERSION" ]]; then
        echo "neovim $INSTALLED_VER matches target — no action"
        exit 0
    fi
    echo "neovim $INSTALLED_VER -> $NVIM_TARGET_VERSION"
else
    echo "installing neovim $NVIM_TARGET_VERSION"
fi

cd /tmp
TMP_TARBALL="$(mktemp /tmp/nvim-update.XXXXXX.tar.gz)"
trap 'rm -f "$TMP_TARBALL"' EXIT

if ! curl -fL --retry 3 \
    "https://github.com/neovim/neovim/releases/download/${NVIM_TARGET_VERSION}/${NVIM_TARBALL}" \
    -o "$TMP_TARBALL"; then
    echo "failed to download $NVIM_TARBALL" >&2
    exit 1
fi

sudo rm -rf /opt/nvim-linux* /usr/local/bin/nvim
sudo tar -xzf "$TMP_TARBALL" -C /opt/
sudo ln -sf "/opt/$(basename "$TMP_TARBALL" .tar.gz)/bin/nvim" /usr/local/bin/nvim

echo "neovim $NVIM_TARGET_VERSION installed"
nvim --version | head -1