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

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
IMAGE="${IMAGE:-localhost/wiki-print:latest}"
MANIFEST="$ROOT_DIR/podman/wiki-print.pod.yaml"
SECRET_NAME="wiki-print-config"

if [ -z "${WIKI_URL:-}" ]; then
  echo "WIKI_URL is not set." >&2
  echo "Export the Wiki.js URL before starting the pod, for example:" >&2
  echo "  export WIKI_URL='https://wiki.example.com'" >&2
  exit 1
fi

if [ -z "${WIKI_API_KEY:-}" ]; then
  echo "WIKI_API_KEY is not set." >&2
  echo "Export the Wiki.js API key before starting the pod, for example:" >&2
  echo "  export WIKI_API_KEY='your-wiki-js-api-key'" >&2
  exit 1
fi

if ! podman info >/dev/null 2>&1; then
  echo "Podman is not ready. Starting the Podman machine…"
  podman machine start
fi

if ! podman image exists "$IMAGE"; then
  "$ROOT_DIR/scripts/build.sh"
fi

# Recreate the pod before replacing the secret: a running container still
# references the old secret, and Podman refuses to remove a secret in use.
if podman pod exists wiki-print >/dev/null 2>&1; then
  podman play kube --down "$MANIFEST" >/dev/null 2>&1 || podman pod rm -f wiki-print >/dev/null 2>&1 || true
fi

if podman secret exists "$SECRET_NAME" >/dev/null 2>&1; then
  podman secret rm "$SECRET_NAME" >/dev/null
fi
# Remove the secret used by older versions of these scripts.
if podman secret exists wiki-print-api-key >/dev/null 2>&1; then
  podman secret rm wiki-print-api-key >/dev/null 2>&1 || true
fi

# podman play kube expects the secret content to be a JSON map of raw values
# (base64-encoded) or a Kubernetes Secret object.
printf '{"WIKI_URL":"%s","WIKI_API_KEY":"%s"}' \
  "$(printf %s "$WIKI_URL" | base64 | tr -d '\n')" \
  "$(printf %s "$WIKI_API_KEY" | base64 | tr -d '\n')" \
  | podman secret create "$SECRET_NAME" - >/dev/null

echo "Creating pod wiki-print…"
podman play kube --replace "$MANIFEST"

echo -n "Waiting for the web UI"
for _ in $(seq 1 60); do
  if curl -fsS http://127.0.0.1:8080/healthz >/dev/null 2>&1; then
    echo
    echo "wiki-print is ready at http://localhost:8080"
    exit 0
  fi
  echo -n "."
  sleep 1
done

echo
echo "The pod was created, but the health check did not become ready in time."
echo "Inspect it with: ./scripts/logs.sh"
exit 1