audit.go

package audit

import (
	"encoding/json"
	"fmt"
	"github.com/r3labs/diff/v2"
	"github.com/samber/lo"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/errors"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/logs"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/number_utils"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/reflection"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/string_utils"
	"reflect"
	"regexp"
	"strconv"
	"strings"
)

type FieldChange struct {
	From any `json:"change_from"`
	To   any `json:"change_to"`
}

type IAuditFormatter interface {
	FormatForAuditEvent() string
}

func VerifyAuditEvents(original any, new any) error {
	if original != nil {
		structValue := reflect.ValueOf(original)
		if structValue.Kind() != reflect.Struct {
			return errors.Error("original object is not of type struct")
		}
	}

	if new != nil {
		structValue := reflect.ValueOf(new)
		if structValue.Kind() != reflect.Struct {
			return errors.Error("new object is not of type struct")
		}
	}

	return nil
}

func GetChanges(original any, new any) (map[string]any, error) {
	// Clean audit events
	original = cleanStruct(original)
	new = cleanStruct(new)

	changes := map[string]any{}
	changelog, err := diff.Diff(original, new)
	if err != nil {
		return changes, err
	}

	for _, change := range changelog {

		if len(change.Path) == 1 {
			// Root object change
			field := ToSnakeCase(change.Path[0])
			changes[field] = FieldChange{
				From: change.From,
				To:   change.To,
			}
		} else if len(change.Path) == 2 {
			// Child object changed
			// ["Account", "ID"]
			// 0 = Object
			// 1 = field