// MobileGL - MobileGL/MG_State/GLState/ProgramState/ShaderObject.h
// Copyright (c) 2025-2026 MobileGL-Dev
// Licensed under the GNU Lesser General Public License v3.0:
//   https://www.gnu.org/licenses/gpl-3.0.txt
//   https://www.gnu.org/licenses/lgpl-3.0.txt
// SPDX-License-Identifier: LGPL-3.0-only
// End of Source File Header

#pragma once
#include <Includes.h>

namespace MobileGL {
    enum class ShaderStage {
        Vertex,
        TessControl,
        TessEval,
        Geometry,
        Fragment,
        Compute,
        ShaderStageCount,
        Unknown = -1
    };

    namespace MG_State::GLState {
        class ShaderObject {
        public:
            ShaderObject(const ShaderStage stage, Uint externalIndex)
                : m_stage(stage), m_externalIndex(externalIndex) {}
            void SetShaderSource(const String& source);
            void SetShaderSource(String&& source);
            void Compile();
            void MarkAsDeleted();

            Uint GetExternalIndex() const { return m_externalIndex; }
            ShaderStage GetShaderStage() const { return m_stage; }
            const String& GetShaderSource() const { return m_source; }
            const SharedPtr<glslang::TShader>& GetCompiledShader() const { return m_shader; }
            const String& GetInfoLog() const { return m_infoLog; }
            const UnorderedMap<String, Uint>& GetUniformLocations() const { return m_uniforms; }
            Bool GetCompileStatus() const { return m_compileStatus; }
            Bool GetDeleteStatus() const { return m_deleteStatus; }

        private:
            const Uint m_externalIndex = 0;
            const ShaderStage m_stage;
            String m_source;
            SharedPtr<glslang::TShader> m_shader;
            UnorderedMap<String, Uint> m_uniforms;

            String m_infoLog;
            Bool m_deleteStatus = false;
            Bool m_compileStatus = false;
        };
    } // namespace MG_State::GLState
} // namespace MobileGL