#!/bin/bash
set -e

REPO_ROOT=$(git rev-parse --show-toplevel)
BACKEND_DIR="$REPO_ROOT/veza-backend-api"
CORE_DIR="internal/core"

echo "📍 Backend Core Isolation Check"

cd "$BACKEND_DIR"

if [ ! -d "$CORE_DIR" ]; then
    echo "⚠️  $CORE_DIR does not exist. Skipping."
    exit 0
fi

echo "🔎 Analyzing dependencies of $CORE_DIR..."

# List all imports of packages in internal/core
IMPORTS=$(go list -f '{{.Imports}}' ./$CORE_DIR/...)

# Check for forbidden packages
FORBIDDEN="database/sql github.com/lib/pq github.com/jackc/pgx"

FAILED=0
for PKG in $FORBIDDEN; do
    if echo "$IMPORTS" | grep -q "$PKG"; then
        echo "❌ Violation: $CORE_DIR depends on $PKG"
        FAILED=1
    fi
done

if [ $FAILED -eq 1 ]; then
    echo "❌ Core isolation check FAILED. Core domain logic must not be coupled to DB drivers."
    exit 1
fi

echo "✅ Core isolation verified."