#!/usr/bin/env bash
# Regression test: in k3d mode, init_registry.sh should derive K3D cluster name
# from the active kubectl context when K3D_CLUSTER_NAME is unset.

set -euo pipefail

SCRIPT_DIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
KNOE_HOME=$(cd "$SCRIPT_DIR/../.." && pwd)
ETC_DIR="$KNOE_HOME/etc"
SCRIPT_UNDER_TEST="$ETC_DIR/init_registry.sh"

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

export PROLE_TEST_TMP_DIR="$TMP_DIR"

# Mock tools
cat > "$TMP_DIR/kubectl" <<'EOF'
#!/usr/bin/env bash
set -euo pipefail

LOG_DIR="${PROLE_TEST_TMP_DIR:-/tmp}"

if [[ "${1:-}" == "config" && "${2:-}" == "current-context" ]]; then
  echo "k3d-knoe-system"
  exit 0
fi

# If kubectl is being fed a manifest via stdin (e.g. `-f -`), consume it so
# upstream renderers don't fail with SIGPIPE under `set -o pipefail`.
for ((i=1; i<=$#; i++)); do
  if [[ "${!i}" == "-f" ]]; then
    j=$((i+1))
    if [[ "${!j:-}" == "-" ]]; then
      cat >/dev/null || true
      break
    fi
  fi
done

echo "kubectl called with $*" >> "${LOG_DIR}/mock_calls.log"
exit 0
EOF

cat > "$TMP_DIR/docker" <<'EOF'
#!/usr/bin/env bash
set -euo pipefail

LOG_DIR="${PROLE_TEST_TMP_DIR:-/tmp}"
echo "docker called with $*" >> "${LOG_DIR}/mock_calls.log"
exit 0
EOF

cat > "$TMP_DIR/k3d" <<'EOF'
#!/usr/bin/env bash
set -euo pipefail

LOG_DIR="${PROLE_TEST_TMP_DIR:-/tmp}"
echo "k3d called with $*" >> "${LOG_DIR}/mock_calls.log"
exit 0
EOF

cat > "$TMP_DIR/curl" <<'EOF'
#!/usr/bin/env bash
set -euo pipefail

LOG_DIR="${PROLE_TEST_TMP_DIR:-/tmp}"
echo "curl called with $*" >> "${LOG_DIR}/mock_calls.log"
exit 0
EOF

chmod +x "$TMP_DIR/kubectl" "$TMP_DIR/docker" "$TMP_DIR/k3d" "$TMP_DIR/curl"

# Minimal knoe.cfg
mkdir -p "$TMP_DIR/conf"
cat <<C_EOF > "$TMP_DIR/conf/knoe.cfg"
[globals]
knoe.home = $KNOE_HOME
knoe.mode = k3d
[k3s]
server = https://localhost:6443
token = test-token
C_EOF

export PATH="$TMP_DIR:$PATH"
export KNOE_HOME="$KNOE_HOME"
export KNOE_CONF="$TMP_DIR/conf"

# Ensure we are testing kubectl-context based resolution.
unset K3D_CLUSTER_NAME

set +e
bash "$SCRIPT_UNDER_TEST" initialize >"$TMP_DIR/stdout" 2>"$TMP_DIR/stderr"
RC=$?
set -e

if [[ $RC -ne 0 ]]; then
  echo "FAILURE: init_registry.sh exited $RC"
  echo "--- stderr ---"
  cat "$TMP_DIR/stderr" || true
  exit 1
fi

if ! grep -q "docker called with network connect --alias k3d-knoe-registry k3d-knoe-system k3d-knoe-registry" "$TMP_DIR/mock_calls.log"; then
  echo "FAILURE: expected registry network connect to target k3d-knoe-system network (derived from kubectx)"
  echo "--- mock_calls.log ---"
  cat "$TMP_DIR/mock_calls.log" || true
  exit 1
fi

echo "SUCCESS"