#!/usr/bin/env bash
# Builds the development images on this Mac (native linux/arm64, nothing pushed):
#   kvitt-server:dev  from server/Dockerfile (milestone M2a)
#   kvitt-backup:dev  from infra/backup/Dockerfile
# Usage: infra/dev/build.sh [server|backup|all]   (default: all)
# Refuses to run while a Gradle build holds the gradle-serial lock (CLAUDE.md: never build images during a Gradle build).
set -euo pipefail
# shellcheck source=lib.sh
. "$(dirname "$0")/lib.sh"

what="${1:-all}"
lock=/tmp/kvitt-gradle.lock
if [[ -d "$lock" ]] && pid="$(cat "$lock/pid" 2>/dev/null)" && [[ -n "$pid" ]] && kill -0 "$pid" 2>/dev/null; then
  echo "build.sh: a Gradle build is running (pid $pid, $lock); try again when it is done." >&2
  exit 1
fi

server_image="$(env_value KVITT_SERVER_IMAGE)"; server_image="${server_image:-kvitt-server:dev}"
backup_image="$(env_value KVITT_BACKUP_IMAGE)"; backup_image="${backup_image:-kvitt-backup:dev}"

build_server() {
  local dockerfile="$repo_root/server/Dockerfile"
  local context="${KVITT_SERVER_BUILD_CONTEXT:-$repo_root/server}"
  if [[ ! -f "$dockerfile" ]]; then
    echo "build.sh: $dockerfile does not exist yet (it comes with milestone M2a)." >&2
    return 1
  fi
  echo "Building $server_image from server/Dockerfile"
  docker build --platform linux/arm64 -f "$dockerfile" -t "$server_image" "$context"
}

build_backup() {
  echo "Building $backup_image from infra/backup/Dockerfile"
  docker build --platform linux/arm64 -f "$repo_root/infra/backup/Dockerfile" -t "$backup_image" "$repo_root/infra/backup"
}

case "$what" in
  server) build_server ;;
  backup) build_backup ;;
  all) build_backup; build_server ;;
  *) echo "usage: $0 [server|backup|all]" >&2; exit 2 ;;
esac