#!/usr/bin/env bash
#
# NVCurve single-command installer.
#
#   curl -fsSL https://gitea.zephyre.one/Pakobbix/nvcurve/raw/branch/main/install.sh | bash
#
# or from a local clone:
#
#   git clone https://gitea.zephyre.one/Pakobbix/nvcurve.git && cd nvcurve && ./install.sh
#
# The React frontend is compiled automatically during the Python build
# (see hatch_build.py), so Node.js 18+ and npm must be available.
#
# Environment:
#   NVCURVE_BRANCH  branch to install (default: main)

set -euo pipefail

REPO_URL="https://gitea.zephyre.one/Pakobbix/nvcurve.git"
BRANCH="${NVCURVE_BRANCH:-main}"

fail() {
    echo "error: $*" >&2
    exit 1
}

# --- prerequisites -----------------------------------------------------------
command -v git >/dev/null 2>&1 \
    || fail "git is required. Install it first."
command -v node >/dev/null 2>&1 \
    || fail "Node.js 18+ is required (e.g. 'sudo pacman -S nodejs npm' or 'sudo apt install nodejs npm')."
command -v npm >/dev/null 2>&1 \
    || fail "npm is required (usually installed together with Node.js)."

if ! command -v uv >/dev/null 2>&1; then
    echo "uv not found — installing it from https://astral.sh/uv ..."
    curl -LsSf https://astral.sh/uv/install.sh | sh
    export PATH="$HOME/.local/bin:$PATH"
    command -v uv >/dev/null 2>&1 \
        || fail "uv installation failed. Install uv manually: https://docs.astral.sh/uv/"
fi

# --- locate the source tree ---------------------------------------------------
if [ -f pyproject.toml ] && [ -d frontend ]; then
    src="$(pwd)"
    echo "Installing from current directory: $src"
else
    tmp="$(mktemp -d)"
    trap 'rm -rf "$tmp"' EXIT
    echo "Cloning $REPO_URL (branch: $BRANCH) ..."
    git clone --quiet --depth 1 --branch "$BRANCH" "$REPO_URL" "$tmp/nvcurve"
    src="$tmp/nvcurve"
fi

# --- install -------------------------------------------------------------------
# The frontend is built automatically by the build hook (hatch_build.py).
uv tool install --force "$src"

echo
echo "NVCurve installed."
echo "  Verify your GPU:  nvcurve setup"
echo "  Start the web UI: nvcurve"