/*
 * Copyright (c) 2010-2016 Isode Limited.
 * All rights reserved.
 * See the COPYING file for more information.
 */

#pragma once

#include <cassert>
#include <string>
#include <vector>

#include <Swiften/Base/API.h>
#include <Swiften/Elements/FormField.h>
#include <Swiften/Elements/FormPage.h>
#include <Swiften/Elements/FormSection.h>
#include <Swiften/Elements/Payload.h>
#include <Swiften/JID/JID.h>

namespace Swift {
    /**
     * XEP-0004 Data form.
     * For the relevant Fields, the parsers and serialisers protect the API user against
     * the strange multi-value instead of newline thing by transforming them.
     */
    class SWIFTEN_API Form : public Payload {
        public:
            typedef std::shared_ptr<Form> ref;
            typedef std::vector<FormField::ref> FormItem;

            enum Type { FormType, SubmitType, CancelType, ResultType };

        public:
            Form(Type type = FormType) : type_(type) {}

            void addPage(std::shared_ptr<FormPage> page) {
                assert(page);
                pages_.push_back(page);
            }

            const std::vector<std::shared_ptr<FormPage> >& getPages() const {
                return pages_;
            }

            void addField(std::shared_ptr<FormField> field) {
                assert(field);
                fields_.push_back(field);
            }

            const std::vector<std::shared_ptr<FormField> >& getFields() const {
                return fields_;
            }

            void clearFields() {
                fields_.clear();
            }

            void addTextElement(std::shared_ptr<FormText> text) {
                assert(text);
                textElements_.push_back(text);
            }

            const std::vector<std::shared_ptr<FormText> >& getTextElements() const {
                return textElements_;
            }

            void addReportedRef(std::shared_ptr<FormReportedRef> reportedRef) {
                assert(reportedRef);
                reportedRefs_.push_back(reportedRef);
            }

            const std::vector<std::shared_ptr<FormReportedRef> >& getReportedRefs() const {
                return reportedRefs_;
            }

            void setTitle(const std::string& title) {
                title_ = title;
            }

            const std::string& getTitle() const {
                return title_;
            }

            void setInstructions(const std::string& instructions) {
                instructions_ = instructions;
            }

            const std::string& getInstructions() const {
                return instructions_;
            }

            /** Returns the Form::Type enum (ie. ResultType, CancelType etc.).
             * NOT to be confused with Form::getFormType().
             */
            Type getType() const {
                return type_;
            }

            void setType(Type type) {
                type_ = type;
            }

            /** Returns the value of the field FORM_TYPE
             * NOT to be confused with Form::getType().
             */
            std::string getFormType() const;
            FormField::ref getField(const std::string& name) const;
            void addItem(const FormItem& item);
            const std::vector<FormItem>& getItems() const;
            void clearItems() { items_.clear(); }

            void clearEmptyTextFields();

            void addReportedField(FormField::ref field);
            const std::vector<FormField::ref> & getReportedFields() const;
            void clearReportedFields() { reportedFields_.clear(); }

        private:
            std::vector<std::shared_ptr<FormReportedRef> >reportedRefs_;
            std::vector<std::shared_ptr<FormText> > textElements_;
            std::vector<std::shared_ptr<FormPage> > pages_;
            std::vector<std::shared_ptr<FormField> > fields_;
            std::vector<std::shared_ptr<FormField> > reportedFields_;
            std::vector<FormItem> items_;
            std::shared_ptr<FormReportedRef> reportedRef_;
            std::string title_;
            std::string instructions_;
            Type type_;
    };
}