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

SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

UBUNTU_VERSION="${UBUNTU_VERSION:-26.04}"
OPENCODE_VERSION=$(curl -fsSI https://github.com/anomalyco/opencode/releases/latest | sed -n 's/^location:.*\/tag\/v\{0,1\}\(.*\)\r$/\1/ip')
NODE_VERSION=$(curl -fsSL https://nodejs.org/dist/index.json | sed -n 's/.*"version":"v\([^"]*\)".*"lts":".*".*/\1/p' | head -n 1)

IMAGE_REPO="${IMAGE_REPO:-localhost/opencode-dev}"
IMAGE_TAG="${IMAGE_TAG:-${OPENCODE_VERSION}}"
IMAGE="${IMAGE_REPO}:${IMAGE_TAG}"

NO_CACHE=()
if [[ "${1:-}" == "--no-cache" ]]; then
  NO_CACHE+=(--no-cache)
  shift
fi

UPDATE=0
if [[ "${1:-}" == "--update" ]]; then
  UPDATE=1
  shift
fi

DRY_RUN=false
if [[ "${1:-}" == "--dry-run" ]]; then
  DRY_RUN=true
  shift
fi

if (($#)); then
  echo "Usage: $0 [--no-cache] [--update] [--dry-run]" >&2
  exit 2
fi

if ((UPDATE)); then
  echo "Update requested: rebuilding ${IMAGE} with current Ubuntu package metadata."
  podman rmi ${IMAGE_REPO}
fi

if [ DRY_RUN = false ]; then
  podman build \
    "${NO_CACHE[@]}" \
    --build-arg "UBUNTU_VERSION=${UBUNTU_VERSION}" \
    --build-arg "OPENCODE_VERSION=${OPENCODE_VERSION}" \
    --build-arg "NODE_VERSION=${NODE_VERSION}" \
    -t "$IMAGE" \
    .

  echo
  echo "Built: $IMAGE"
else
  echo "running: podman build ${NO_CACHE[@]} --build-arg UBUNTU_VERSION=${UBUNTU_VERSION} --build-arg OPENCODE_VERSION=${OPENCODE_VERSION} --build-arg NODE_VERSION=${NODE_VERSION} -t $IMAGE"
fi