using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using DocuWare.Platform.ServerClient;

namespace DocuWare.PlatformClientExamples
{
    static partial class ExamplesAsync
    {
        /// <summary>
        /// Escaping special symbols by adding backslash before the symbol.
        /// </summary>
        /// <remarks>Some of the special symbols that have to be escaped by backslash are ( ) "</remarks>
        public static void SearchEscapingByBackslash(Organization org)
        {
            FileCabinets fileCabinets = org.GetFileCabinetsFromFilecabinetsRelation();
            FileCabinet cabinet = fileCabinets.FileCabinet.FirstOrDefault((fc) => fc.Name == "Green FC");
            cabinet = cabinet.GetFileCabinetFromSelfRelation();

            string inputValue = "\"Invoice\" (In)"; // "Invoice" (In)

            // store a document with a field which contains some symbols that have to be escaped
            Document doc = StoreDocument(cabinet, inputValue);

            string searchCriteria = inputValue;

            try
            {
                // searching for a value without escaping with backslash symbol will throw an exception
                SearchForDocuments(cabinet, searchCriteria);
            }
            catch
            {
            }

            // create search criteria by escaping the symbols with backslash
            searchCriteria = EscapeSpecialSymbols(inputValue);

            // get the documents
            DocumentsQueryResult result = SearchForDocuments(cabinet, searchCriteria);
        }

        /// <summary>
        /// Stores a document in a file cabinet.
        /// </summary>
        private static Document StoreDocument(FileCabinet cabinet, string fieldValue)
        {
            var doc = new Document();
            doc.Fields = new List<DocumentIndexField>();
            doc.Fields.Add(new DocumentIndexField() { FieldName = "COMPANY", Item = fieldValue, ItemElementName = ItemChoiceType.String });

            doc = cabinet.UploadDocument(doc, new[] { new FileInfo("DOC NATIVE.doc") });
            doc = doc.GetDocumentFromSelfRelation();

            return doc;
        }

        /// <summary>
        /// Searches for documents in a file cabinet by search criteria.
        /// </summary>
        private static DocumentsQueryResult SearchForDocuments(FileCabinet cabinet, string searchCriteria)
        {
            DialogInfo cusomDialogInfo = cabinet.GetDialogFromCustomSearchRelation();
            Dialog customDialog = cusomDialogInfo.GetDialogFromSelfRelation();
            DocumentsQueryResult result = customDialog.Query.PostToDialogExpressionRelationForDocumentsQueryResult(new DialogExpression()
            {
                Condition = new List<DialogExpressionCondition>()
                {
                    new DialogExpressionCondition()
                    {
                        DBName = "COMPANY",
                        Value = new List<string>() { searchCriteria },
                    }
                }
            });

            return result;
        }

        /// <summary>
        /// Searches escaping symbols by backslash.
        /// </summary>
        /// <remarks>Some symbols that could be escaped by backslash are ( ) "</remarks>
        private static string EscapeSpecialSymbols(string searchCriteria)
        {
            string nonEscapedOpenBracket = "(?<!\\\\)[(]";  // match non escaped (
            string nonEscapedCloseBracket = "(?<!\\\\)[)]"; // match non escaped )
            string nonEscapedQuote = "(?<!\\\\)[\\\"]"; // match non escaped "

            var regex = new Regex(nonEscapedOpenBracket);
            var m = regex.Matches(searchCriteria);
            searchCriteria = regex.Replace(searchCriteria, @"\(");
            regex = new Regex(nonEscapedCloseBracket);
            searchCriteria = regex.Replace(searchCriteria, @"\)");
            regex = new Regex(nonEscapedQuote);
            searchCriteria = regex.Replace(searchCriteria, "\\\"");

            return searchCriteria;
        }
    }
}

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using DocuWare.Platform.ServerClient;

namespace DocuWare.PlatformClientExamples
{
    public class SearchEscapingByQuates
    {
        /// <summary>
        /// Escaping special symbols by closing the search criteria by quotes.
        /// </summary>
        /// <remarks>
        /// Some of the special symbols that could be escaped are ( ) &lt; &gt; = 
        /// </remarks>
        public void SearchEscapeByQuotes(Organization org)
        {
            FileCabinets fileCabinets = org.GetFileCabinetsFromFilecabinetsRelation();
            FileCabinet cabinet = fileCabinets.FileCabinet.FirstOrDefault((fc) => fc.Name == "Green FC");
            cabinet = cabinet.GetFileCabinetFromSelfRelation();

            string inputValue = "(1) One is = to one, one is < then two, one is > then zero.";

            // store a document with a field which contains some symbols that have to be escaped
            Document doc = StoreDocument(cabinet, inputValue);

            string searchCriteria = inputValue;

            try
            {
                // searching for a value without escaping with backslash symbols will throw an exception
                SearchForDocuments(cabinet, searchCriteria);
            }
            catch
            {
            }

            // create search criteria by escaping the symbols with backslash
            searchCriteria = EscapeSpecialSymbols(inputValue);

            // get the documents
            DocumentsQueryResult result = SearchForDocuments(cabinet, searchCriteria);
        }

        private static Document StoreDocument(FileCabinet cabinet, string fieldValue)
        {
            var doc = new Document();
            doc.Fields = new List<DocumentIndexField>();
            doc.Fields.Add(new DocumentIndexField() { FieldName = "COMPANY", Item = fieldValue, ItemElementName = ItemChoiceType.String });

            doc = cabinet.UploadDocument(doc, new[] { new FileInfo("DOC NATIVE.doc") });
            doc = doc.GetDocumentFromSelfRelation();

            return doc;
        }

        private DocumentsQueryResult SearchForDocuments(FileCabinet cabinet, string searchCriteria)
        {
            DialogInfo cusomDialogInfo = cabinet.GetDialogFromCustomSearchRelation();
            Dialog customDialog = cusomDialogInfo.GetDialogFromSelfRelation();
            DocumentsQueryResult result = customDialog.Query.PostToDialogExpressionRelationForDocumentsQueryResult(new DialogExpression()
            {
                Condition = new List<DialogExpressionCondition>()
                {
                    new DialogExpressionCondition()
                    {
                        DBName = "COMPANY",
                        Value = new List<string>() { searchCriteria },
                    }
                }
            });

            return result;
        }

        /// <summary>
        /// Searches escaping symbols by backslash.
        /// </summary>
        /// <remarks>Some symbols that could be escaped by backslash are  ( ) &lt; &gt; = </remarks>
        /// <param name="searchCriteria"></param>
        public static string EscapeSpecialSymbols(string searchCriteria)
        {
            searchCriteria = string.Format("\"{0}\"", searchCriteria);

            return searchCriteria;
        }
    }
}