#!/bin/sh
set -e

BASE_URL="https://slicer.dive.ai"
BINARY_NAME="slicer"
INSTALL_DIR="/usr/local/bin"

# Detect OS
OS=$(uname -s | tr '[:upper:]' '[:lower:]')
case "$OS" in
  linux) OS="linux" ;;
  darwin) OS="darwin" ;;
  *) echo "Error: Unsupported OS: $OS"; exit 1 ;;
esac

# Detect architecture
ARCH=$(uname -m)
case "$ARCH" in
  x86_64|amd64) ARCH="x64" ;;
  arm64|aarch64) ARCH="arm64" ;;
  *) echo "Error: Unsupported architecture: $ARCH"; exit 1 ;;
esac

echo "Detecting platform... ${OS}/${ARCH}"

# Get latest version
VERSION=$(curl -fsSL "${BASE_URL}/latest/version")
if [ -z "$VERSION" ]; then
  echo "Error: Could not fetch latest version."
  exit 1
fi

ASSET_NAME="${BINARY_NAME}-${OS}-${ARCH}"
URL="${BASE_URL}/latest/${ASSET_NAME}"

echo "Downloading ${BINARY_NAME} ${VERSION} (${OS}/${ARCH})..."
curl -fsSL "$URL" -o "/tmp/${BINARY_NAME}" || {
  echo "Error: Failed to download ${URL}"
  echo "Check that a release exists for your platform."
  exit 1
}

chmod +x "/tmp/${BINARY_NAME}"

# Install
if [ -w "$INSTALL_DIR" ]; then
  mv "/tmp/${BINARY_NAME}" "${INSTALL_DIR}/${BINARY_NAME}"
else
  echo "Installing to ${INSTALL_DIR} (requires sudo)..."
  sudo mv "/tmp/${BINARY_NAME}" "${INSTALL_DIR}/${BINARY_NAME}"
fi

# Check Python
if ! command -v python3 >/dev/null 2>&1; then
  echo ""
  echo "Warning: python3 not found. slicer requires Python 3 for PDF processing."
  echo "Install it with:"
  echo "  macOS:  brew install python3"
  echo "  Linux:  sudo apt install python3"
  echo ""
fi

echo ""
echo "slicer ${VERSION} installed successfully!"
echo "Run 'slicer' to get started."