// Copyright (c) 2020-present, Roland Munguia & Tristan Florian Bouchard.
// Distributed under the MIT License (http://opensource.org/licenses/MIT)

#pragma once

#ifndef CSYS_HEADER_ONLY

#include "csys/script.h"

#endif

#include <fstream>
#include <utility>
#include "csys/exceptions.h"

namespace csys
{

    CSYS_INLINE Script::Script(std::string path, bool load_on_init) : m_Path(std::move(path)), m_FromMemory(false)
    {
        // Load file.
        if (load_on_init)
            Load();
    }

    CSYS_INLINE Script::Script(const char *path, bool load_on_init) : m_Path(path), m_FromMemory(false)
    {
        // Load file.
        if (load_on_init)
            Load();
    }

    CSYS_INLINE Script::Script(std::vector<std::string> data) : m_Data(std::move(data)), m_FromMemory(true)
    {}

    CSYS_INLINE void Script::Load()
    {
        std::ifstream script_fstream(m_Path);

        // Error check.
        if (!script_fstream.good())
            throw csys::Exception("Failed to load script", m_Path);

        // Check and open file.
        if (script_fstream.good() && script_fstream.is_open())
        {
            // Line buffer.
            std::string line_buf;

            // Read commands.
            while (std::getline(script_fstream, line_buf))
            {
                m_Data.emplace_back(line_buf);
            }

            // Close file.
            script_fstream.close();
        }
    }

    CSYS_INLINE void Script::Reload()
    {
        if (m_FromMemory) return;

        Unload();
        Load();
    }

    CSYS_INLINE void Script::Unload()
    {
        m_Data.clear();
    }

    CSYS_INLINE void Script::SetPath(std::string path)
    {
        m_Path = std::move(path);
    }

    CSYS_INLINE const std::vector<std::string> &Script::Data()
    {
        return m_Data;
    }
}