#!/bin/sh
# This script installs the latest version of the Render CLI
# You can run it directly:
#   curl -fsSL https://raw.githubusercontent.com/render-oss/cli/bin/install.sh | sh

set -e

# Prevent running with partial download
{ # this ensures the entire script is downloaded

  # Function to get latest release info using GitHub API
  get_latest_release() {
    curl --silent "https://api.github.com/repos/render-oss/cli/releases/latest" \
      | sed -n 's/.*"tag_name": "\([^"]*\)".*/\1/p'
  }

  # Function to output error message and exit
  error() {
    echo "Error: $1" >&2
    exit 1
  }

  # Check for required commands
  command -v curl > /dev/null 2>&1 || error "curl is required but not installed"
  command -v sed > /dev/null 2>&1 || error "sed is required but not installed"
  command -v unzip > /dev/null 2>&1 || error "unzip is required but not installed"

  # Detect OS
  OS="$(uname -s)"
  case "${OS}" in
    Linux*) OS_NAME=linux ;;
    Darwin*) OS_NAME=darwin ;;
    *) error "Unsupported operating system: ${OS}" ;;
  esac

  # Detect architecture
  ARCH="$(uname -m)"
  case "${ARCH}" in
    x86_64*) ARCH_NAME=amd64 ;;
    arm64*) ARCH_NAME=arm64 ;;
    aarch64*) ARCH_NAME=arm64 ;;
    *) error "Unsupported architecture: ${ARCH}" ;;
  esac

  # Get the latest release version
  VERSION=$(get_latest_release)
  if [ -z "$VERSION" ]; then
    error "Failed to get latest release version"
  fi

  # Remove 'v' prefix from version if present
  VERSION_NUM="${VERSION#v}"

  echo "Installing Render CLI version ${VERSION}..."

  # Construct download URL
  BINARY_NAME="cli_${VERSION_NUM}_${OS_NAME}_${ARCH_NAME}.zip"
  DOWNLOAD_URL="https://github.com/render-oss/cli/releases/download/${VERSION}/${BINARY_NAME}"

  # Create temporary directory
  TMP_DIR=$(mktemp -d)
  trap 'rm -rf "$TMP_DIR"' EXIT

  # Download and install
  echo "Downloading from ${DOWNLOAD_URL}..."
  curl -fsSL "$DOWNLOAD_URL" -o "${TMP_DIR}/${BINARY_NAME}"

  # Determine install location
  if [ "$(id -u)" -eq 0 ]; then
    INSTALL_DIR="/usr/local/bin"
  else
    INSTALL_DIR="$HOME/.local/bin"
    mkdir -p "$INSTALL_DIR"
  fi

  # Unzip in temporary directory
  unzip -o "${TMP_DIR}/${BINARY_NAME}" -d "${TMP_DIR}" > /dev/null 2>&1

  # Find and move the binary
  RENDER_BINARY=$(find "${TMP_DIR}" -type f -name "cli_v*" | head -n 1)
  if [ -z "$RENDER_BINARY" ]; then
    error "Could not find CLI binary in the archive"
  fi

  mv "${RENDER_BINARY}" "${INSTALL_DIR}/render"
  chmod +x "${INSTALL_DIR}/render"

  # Verify installation by checking the binary directly
  if [ -x "${INSTALL_DIR}/render" ]; then
    echo "✨ Successfully installed Render CLI to ${INSTALL_DIR}/render"
    echo
    if ! command -v render > /dev/null 2>&1; then
      echo "NOTE: Make sure ${INSTALL_DIR} is in your PATH by adding this to your shell's rc file:"
      echo "  export PATH=\$PATH:${INSTALL_DIR}"
      echo
      echo "To use render CLI immediately, run:"
      echo "  export PATH=\$PATH:${INSTALL_DIR}"
      echo "  ${INSTALL_DIR}/render --version"
    else
      "${INSTALL_DIR}/render" --version
    fi
  else
    error "Installation failed: Could not install binary to ${INSTALL_DIR}/render"
  fi

}