#!/usr/bin/env bash
# Regression test: sourcing etc/knoe_cfg.sh should bootstrap config layout
# and migrate a legacy regular-file knoe.cfg entrypoint into the right root file.

set -euo pipefail

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

TMP_DIR=$(mktemp -d)
trap 'rm -rf "$TMP_DIR"' EXIT

TEST_HOME="$TMP_DIR/knoe-home"
mkdir -p "$TEST_HOME/conf"

cat >"$TEST_HOME/env.sh" <<EOF
export KNOE_HOME="$TEST_HOME"
export KNOE_CONF="$TEST_HOME/conf"
export KNOE_SERVICE="$TEST_HOME/etc"
export PROLE_DATA="$TEST_HOME/data"
export PROLE_LOGS="$TEST_HOME/logs"
EOF

# Legacy single-file entrypoint config
cat >"$TEST_HOME/conf/knoe.cfg" <<'EOF'
[Global]
DEPLOYMENT_MODE = k3d
CLUSTER_ENV = k3d-knoe-dev-cluster
NAMESPACE = knoe-db-legacy
SERVICE_NAMESPACE = default
EOF

export KNOE_HOME="$TEST_HOME"
export KNOE_CONF="$TEST_HOME/conf"

# Source the shared loader (this should bootstrap the config layout)
# shellcheck disable=SC1090
source "$PROLE_REPO_ROOT/etc/knoe_cfg.sh"

if [[ ! -f "$KNOE_CONF/k3d.cfg" ]]; then
  echo "FAILURE: expected $KNOE_CONF/k3d.cfg to exist" >&2
  exit 1
fi

if ! grep -q "NAMESPACE = knoe-db-legacy" "$KNOE_CONF/k3d.cfg"; then
  echo "FAILURE: expected migrated k3d base to contain legacy content" >&2
  echo "--- k3d.cfg ---" >&2
  cat "$KNOE_CONF/k3d.cfg" >&2 || true
  exit 1
fi

if ! ls "$KNOE_CONF"/knoe.cfg.legacy.* >/dev/null 2>&1; then
  echo "FAILURE: expected legacy backup knoe.cfg.legacy.* to be created" >&2
  ls -la "$KNOE_CONF" >&2 || true
  exit 1
fi

for env in dev service prod test; do
  if [[ ! -d "$KNOE_CONF/$env" ]]; then
    echo "FAILURE: expected env dir to exist: $KNOE_CONF/$env" >&2
    exit 1
  fi
done

echo "SUCCESS"