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#ifndef __JE_UTF8_H__
#define __JE_UTF8_H__

#include <vector>

#include "../../common/object.h"

#include "text.h"

namespace JinEngine
{
    namespace Graphics
    {
        namespace Fonts
        {

            ///
            /// Text decoder.
            ///
            class Decoder : public Object
            {
            public:

                /// 
                /// Decode a code unit.
                /// 
                /// @param data Code units. 
                /// @param codepoint Value of code point.
                /// @return Next code unit location.
                ///
                virtual const void* decode(const void* data, Codepoint* codepoint) const = 0;

                ///
                /// Get next code unit location.
                /// 
                /// @param data Code units.
                /// @return Next code unit location.
                ///
                virtual const void* next(const void* data) const = 0;

            };

            ///
            /// Utf-8 decoder.
            ///
            class Utf8 : public Decoder
            {
            public:

                /// 
                /// Decode a code unit.
                /// 
                /// @param data Code units. 
                /// @param codepoint Value of code point.
                /// @return Next code unit location.
                ///
                const void* decode(const void* data, Codepoint* codepoint) const override;

                ///
                /// Get next code unit location.
                /// 
                /// @param data Code units.
                /// @return Next code unit location.
                ///
                const void* next(const void* data) const override;

            };

            ///
            /// Ascii decoder.
            ///
            class Ascii : public Decoder
            {
            public:

                /// 
                /// Decode a code unit.
                /// 
                /// @param data Code units. 
                /// @param codepoint Value of code point.
                /// @return Next code unit location.
                ///
                const void* decode(const void* data, Codepoint* codepoint) const override;

                ///
                /// Get next code unit location.
                /// 
                /// @param data Code units.
                /// @return Next code unit location.
                ///
                const void* next(const void* data) const override;

            };

        } // namespace Fonts
    } // namespace Graphics
} // namespace JinEngine

#endif