#!/usr/bin/env bash
# Builds and brings up an environment, then makes sure WordPress/WooCommerce
# are installed and configured to match design doc §01/§03/§07. Safe to run
# repeatedly — every step is idempotent.
set -euo pipefail

ENVIRONMENT="${1:?Usage: deploy.sh <dev|staging|production>}"
export ENVIRONMENT
REPO_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
cd "$REPO_ROOT"

case "$ENVIRONMENT" in
  dev|staging|production) ;;
  *) echo "environment must be 'dev', 'staging', or 'production'" >&2; exit 1 ;;
esac

ENV_FILE=".env.${ENVIRONMENT}"
if [[ ! -f "$ENV_FILE" ]]; then
  echo "missing $ENV_FILE — copy .env.example to $ENV_FILE and fill it in" >&2
  exit 1
fi
# shellcheck source=lib/env.sh
source "$REPO_ROOT/deploy/lib/env.sh"

SITE_URL="$(env_get "$ENV_FILE" SITE_URL)"
SITE_TITLE="$(env_get "$ENV_FILE" SITE_TITLE)"
WP_ADMIN_USER="$(env_get "$ENV_FILE" WP_ADMIN_USER)"
WP_ADMIN_PASSWORD="$(env_get "$ENV_FILE" WP_ADMIN_PASSWORD)"
WP_ADMIN_EMAIL="$(env_get "$ENV_FILE" WP_ADMIN_EMAIL)"

# -p pins the Compose project name to the environment (default is the
# directory name, which every environment shares — that made staging quietly
# reuse dev's db_data volume/credentials the first time this ran).
COMPOSE="docker compose -p bookstore-${ENVIRONMENT} -f docker-compose.yml -f docker-compose.${ENVIRONMENT}.yml --env-file ${ENV_FILE}"

echo "==> writing DB secret files (bypasses compose's \${VAR} interpolation entirely)"
SECRETS_DIR="secrets/${ENVIRONMENT}"
mkdir -p "$SECRETS_DIR"
chmod 700 "secrets" "$SECRETS_DIR" 2>/dev/null || true
DB_PASSWORD_VALUE="$(env_get "$ENV_FILE" DB_PASSWORD)"
DB_ROOT_PASSWORD_VALUE="$(env_get "$ENV_FILE" DB_ROOT_PASSWORD)"
: "${DB_PASSWORD_VALUE:?set DB_PASSWORD in ${ENV_FILE}}"
: "${DB_ROOT_PASSWORD_VALUE:?set DB_ROOT_PASSWORD in ${ENV_FILE}}"
printf '%s' "$DB_PASSWORD_VALUE" > "$SECRETS_DIR/db_password"
printf '%s' "$DB_ROOT_PASSWORD_VALUE" > "$SECRETS_DIR/db_root_password"
# 644, not 600: the db/wordpress/cron containers read this as their own
# (non-host-matching) container UID, e.g. www-data — chmod 600 made it
# unreadable to them. The containing directory (700, above) is what
# actually keeps other host users out; these just need to be world-readable
# within that already-restricted directory.
chmod 644 "$SECRETS_DIR/db_password" "$SECRETS_DIR/db_root_password"

echo "==> building and starting ${ENVIRONMENT}"
$COMPOSE up -d --build

echo "==> waiting for the wordpress container to come up"
for i in $(seq 1 30); do
  if $COMPOSE exec -T wordpress php -v >/dev/null 2>&1; then
    break
  fi
  if [[ "$i" -eq 30 ]]; then
    echo "wordpress container did not become ready in time" >&2
    exit 1
  fi
  sleep 2
done

echo "==> ensuring WordPress is installed"
if ! $COMPOSE exec -T wordpress wp core is-installed --allow-root; then
  $COMPOSE exec -T wordpress wp core install \
    --url="${SITE_URL:?set SITE_URL in ${ENV_FILE}}" \
    --title="${SITE_TITLE:-Bookstore}" \
    --admin_user="${WP_ADMIN_USER:?set WP_ADMIN_USER in ${ENV_FILE}}" \
    --admin_password="${WP_ADMIN_PASSWORD:?set WP_ADMIN_PASSWORD in ${ENV_FILE}}" \
    --admin_email="${WP_ADMIN_EMAIL:?set WP_ADMIN_EMAIL in ${ENV_FILE}}" \
    --skip-email \
    --allow-root
fi

echo "==> installing/activating theme (Blocksy — free; Book Store starter site needs a manual license + import, see README)"
$COMPOSE exec -T wordpress wp theme install blocksy --activate --allow-root

echo "==> installing/activating required plugins"
$COMPOSE exec -T wordpress wp plugin install woocommerce redis-cache blocksy-companion --activate --allow-root
$COMPOSE exec -T wordpress wp plugin activate bookstore-core --allow-root
$COMPOSE exec -T wordpress wp redis enable --allow-root || true

echo "==> enabling WooCommerce HPOS (custom order tables)"
$COMPOSE exec -T wordpress wp option update woocommerce_custom_orders_table_enabled yes --allow-root
$COMPOSE exec -T wordpress wp option update woocommerce_custom_orders_table_data_sync_enabled yes --allow-root

if [[ "$ENVIRONMENT" != "production" ]]; then
  echo "==> discouraging search engines (non-production)"
  $COMPOSE exec -T wordpress wp option update blog_public 0 --allow-root
fi

echo "==> flushing caches and rewrite rules"
$COMPOSE exec -T wordpress wp cache flush --allow-root
$COMPOSE exec -T wordpress wp rewrite flush --allow-root

echo "==> deploy complete: ${ENVIRONMENT}"