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#pragma once
#include <LibLsp/lsp/general/lsClientCapabilities.h>
#include <LibLsp/lsp/utils.h>
#include <memory>
#include <vector>
#include <string>

class ClientPreferences
{
public:

        std::shared_ptr<lsWorkspaceClientCapabilites>  workspace;
        lsTextDocumentClientCapabilities textDocument ;

        ClientPreferences(const lsClientCapabilities& capabilities)
        {
                v3supported = capabilities.textDocument.has_value();
                if (v3supported)
                        textDocument = capabilities.textDocument.value();
                if(capabilities.workspace)
                {
                        workspace = std::make_shared<lsWorkspaceClientCapabilites>(capabilities.workspace.value());
                }
        }

        bool v3supported=false;

        bool isSignatureHelpSupported() {

                return v3supported && (textDocument.signatureHelp);
        }
        bool  isWorkspaceDidChangeConfigurationSupported() const
        {
                return workspace && isDynamicRegistrationSupported(workspace->didChangeConfiguration);
        }
        bool isWorkspaceFoldersSupported() {
                return workspace != nullptr && isTrue(workspace->workspaceFolders);
        }

        bool isCompletionDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.completion);
        }

        bool isCompletionSnippetsSupported() {
                //@formatter:off
                if(!v3supported || !textDocument.completion)
                {
                        return false;
                }
                const auto& completion = textDocument.completion.value();
                if(completion.completionItem)
                {
                        return isTrue(completion.completionItem.value().snippetSupport);
                }
                return false;
        }

        bool isV3Supported() {
                return v3supported;
        }

        bool isFormattingDynamicRegistrationSupported() {
                return v3supported && isDynamicRegistrationSupported(textDocument.formatting);
        }

        bool isRangeFormattingDynamicRegistrationSupported() {
                return v3supported && isDynamicRegistrationSupported(textDocument.rangeFormatting);
        }

        bool isOnTypeFormattingDynamicRegistrationSupported() {
                return v3supported && isDynamicRegistrationSupported(textDocument.onTypeFormatting);
        }

        bool isCodeLensDynamicRegistrationSupported() {
                return v3supported && isDynamicRegistrationSupported(textDocument.codeLens);
        }

        bool isSignatureHelpDynamicRegistrationSupported() {
                return v3supported && isDynamicRegistrationSupported(textDocument.signatureHelp);
        }
        template<typename  T>
        static bool isDynamicRegistrationSupported(boost::optional<T>& capability)
        {
                if(capability)
                        return (capability.value().dynamicRegistration.value());
                return false;
        }

        bool isTrue(const boost::optional<bool>& value)
        {
                return  value.get_value_or(false);
        }

        bool isRenameDynamicRegistrationSupported() {
                return v3supported && isDynamicRegistrationSupported(textDocument.rename);
        }

        bool isExecuteCommandDynamicRegistrationSupported() {
                return v3supported && workspace != nullptr && isDynamicRegistrationSupported(workspace->executeCommand);
        }

        bool isWorkspaceSymbolDynamicRegistered() {
                return v3supported && workspace != nullptr && isDynamicRegistrationSupported(workspace->symbol);
        }

        bool isWorkspaceChangeWatchedFilesDynamicRegistered() {
                return v3supported && workspace != nullptr && isDynamicRegistrationSupported(workspace->didChangeWatchedFiles);
        }

        bool isDocumentSymbolDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.documentSymbol);
        }

        bool isCodeActionDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.codeAction);
        }

        bool isDefinitionDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.definition);
        }

        bool isTypeDefinitionDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.typeDefinition);
        }

        bool isHoverDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.hover);
        }

        bool isReferencesDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.references);
        }

        bool isDocumentHighlightDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.documentHighlight);
        }

        bool isFoldgingRangeDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.foldingRange);
        }

        bool isImplementationDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.implementation);
        }

        bool isSelectionRangeDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.selectionRange);
        }

        bool isWillSaveRegistered() {
                return v3supported && isTrue(textDocument.synchronization.willSave);
        }

        bool isWillSaveWaitUntilRegistered() {
                return v3supported && isTrue(textDocument.synchronization.willSaveWaitUntil);
        }

        bool isWorkspaceApplyEditSupported() {
                return workspace != nullptr && isTrue(workspace->applyEdit);
        }

        bool isSupportsCompletionDocumentationMarkdown() {

                if (!v3supported || !textDocument.completion)
                {
                        return false;
                }
                const auto& completion = textDocument.completion.value();
                if (completion.completionItem)
                {
                        auto& documentationFormat = completion.completionItem.value().documentationFormat;
                        if(documentationFormat)
                        {
                                auto& data = documentationFormat.value();
                                for(auto& it : data)
                                {
                                        if(it == "markdown")
                                        {
                                                return true;
                                        }
                                }
                        }
                }
                return false;

        }


        bool isWorkspaceEditResourceChangesSupported() {
                if(!workspace) return false;

                if(workspace->workspaceEdit)
                {
                        return isTrue(workspace->workspaceEdit.value().resourceChanges);
                }
                return false;
        }
        static  bool contains(const std::vector<std::string>& v, const std::string& target)
        {
                for(auto& it : v)
                {
                        if(it == target) return true;
                }
                return false;
        }
        bool isResourceOperationSupported() const
        {
                if (!workspace) return false;
                if (!workspace->workspaceEdit)
                {
                        return false;
                }
                auto& it = (workspace->workspaceEdit.value());
                if(!it.resourceOperations) return false;
                const auto& resourceOperations = it.resourceOperations.value();
                return contains(resourceOperations, "create") && contains(resourceOperations, "rename") && contains(resourceOperations, "delete");

        }

        /**
         * {@code true} if the client has explicitly set the
         * {@code textDocument.documentSymbol.hierarchicalDocumentSymbolSupport} to
         * {@code true} when initializing the LS. Otherwise, {@code false}.
         */
        bool isHierarchicalDocumentSymbolSupported() {
                if(!v3supported || !textDocument.documentSymbol) return false;
                return  isTrue(textDocument.documentSymbol.value().hierarchicalDocumentSymbolSupport);

        }

        bool isSemanticHighlightingSupported() {
                //@formatter:off
                if (!v3supported || !textDocument.semanticHighlightingCapabilities) return false;
                return  isTrue(textDocument.semanticHighlightingCapabilities.value().semanticHighlighting);
                //@formatter:on
        }

        /**
         * {@code true} if the client has explicitly set the
         * {@code textDocument.codeAction.codeActionLiteralSupport.codeActionKind.valueSet}
         * value. Otherwise, {@code false}.
         */
        bool isSupportedCodeActionKind(const std::string& kind) {
                if (!v3supported || !textDocument.codeAction) return false;
                //@formatter:off
                const auto& codeAction = textDocument.codeAction.value();
                if(codeAction.codeActionLiteralSupport)
                {
                        const auto& codeActionKind = codeAction.codeActionLiteralSupport.value().codeActionKind;
                        if(codeActionKind)
                        {
                                const auto& valueSet = codeActionKind.value().valueSet;
                                if(valueSet)
                                {
                                        for(auto& k : valueSet.value())
                                        {
                                                if(lsp::StartsWith(kind,k))
                                                {
                                                        return true;
                                                }
                                        }
                                }
                        }
                }
                return false;

                //@formatter:on
        }

        /**
         * {@code true} if the client has explicitly set the
         * {@code textDocument.publishDiagnostics.tagSupport} to
         * {@code true} when initializing the LS. Otherwise, {@code false}.
         */
        bool isDiagnosticTagSupported() {
                if (!v3supported || !textDocument.publishDiagnostics) return false;
                const auto& publishDiagnostics = textDocument.publishDiagnostics.value();
                if(publishDiagnostics.tagSupport)
                {
                        isTagSupported(publishDiagnostics.tagSupport);
                }
                return false;
        }

        bool isTagSupported(const boost::optional < std::pair<boost::optional<bool>,
                boost::optional<DiagnosticsTagSupport> > >& tagSupport) {
                if(tagSupport)
                {
                        auto &v = tagSupport.value();
                        if (v.first)
                        {
                                return v.first.value();
                        }
                        if (v.second) {
                                return !v.second.value().valueSet.empty();
                        }
                }
                return false;
        }

        bool isCallHierarchyDynamicRegistered() {
                return v3supported && isDynamicRegistrationSupported(textDocument.callHierarchy);
        }

};