// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package casbin

import (
	"encoding/json"
	"os"
	"regexp"
	"strings"
	"testing"
)

func TestCasbinJsGetPermissionForUser(t *testing.T) {
	e, err := NewSyncedEnforcer("examples/rbac_model.conf", "examples/rbac_with_hierarchy_policy.csv")
	if err != nil {
		panic(err)
	}
	receivedString, err := CasbinJsGetPermissionForUser(e, "alice") // make sure CasbinJsGetPermissionForUser can be used with a SyncedEnforcer.
	if err != nil {
		t.Errorf("Test error: %s", err)
	}
	received := map[string]interface{}{}
	err = json.Unmarshal([]byte(receivedString), &received)
	if err != nil {
		t.Errorf("Test error: %s", err)
	}
	expectedModel, err := os.ReadFile("examples/rbac_model.conf")
	if err != nil {
		t.Errorf("Test error: %s", err)
	}
	// Normalize line endings to \n for cross-platform compatibility
	expectedModelStr := regexp.MustCompile("(\r?\n)+").ReplaceAllString(string(expectedModel), "\n")
	actualModelStr := strings.TrimSpace(received["m"].(string))
	expectedModelStr = strings.TrimSpace(expectedModelStr)

	if actualModelStr != expectedModelStr {
		t.Errorf("%s supposed to be %s", actualModelStr, expectedModelStr)
	}

	expectedPolicies, err := os.ReadFile("examples/rbac_with_hierarchy_policy.csv")
	if err != nil {
		t.Errorf("Test error: %s", err)
	}
	expectedPoliciesItem := regexp.MustCompile(",|\n").Split(string(expectedPolicies), -1)
	i := 0
	for _, sArr := range received["p"].([]interface{}) {
		for _, s := range sArr.([]interface{}) {
			if strings.TrimSpace(s.(string)) != strings.TrimSpace(expectedPoliciesItem[i]) {
				t.Errorf("%s supposed to be %s", strings.TrimSpace(s.(string)), strings.TrimSpace(expectedPoliciesItem[i]))
			}
			i++
		}
	}
}