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/*  Starshatter: The Open Source Project
    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
    Copyright (c) 1997-2006, Destroyer Studios LLC.
*/

#ifndef DataSource_h
#define DataSource_h

#include <cstdint>

#include "Archive.h"
#include "List.h"
#include "Text.h"


class DataSource
{
public:
    static const char* TYPENAME() { return "DataSource"; }

    enum class Group { DEFAULT, BASE, MOD };

    explicit DataSource(Group group=Group::DEFAULT);
    virtual ~DataSource();

    Group GetGroup() const;
    void SetPrefix(const char* prefix=nullptr);

    virtual bool Find(const char* name) const = 0;
    virtual int ListFiles(Text filter, List<Text>& items, bool recurse=false) const = 0;
    virtual int Load(const char* name, std::uint8_t*& buf, bool null_terminate=false) const = 0;

protected:
    Text m_prefix;
    Group m_group;
};


class ArchiveDataSource : public DataSource
{
public:
    explicit ArchiveDataSource(const char* name, Group group=Group::DEFAULT);
    explicit ArchiveDataSource(DataArchive* archive, Group group=Group::DEFAULT);
    ~ArchiveDataSource() override;

    bool Find(const char* name) const override;
    int ListFiles(Text filter, List<Text>& items, bool recurse=false) const override;
    int Load(const char* name, std::uint8_t*& buf, bool null_terminate=false) const override;

protected:
    DataArchive* m_archive;
};


class FileSystemDataSource : public DataSource
{
public:
    explicit FileSystemDataSource(const char* path=".", Group group=Group::DEFAULT);
    ~FileSystemDataSource() override;

    bool Find(const char* name) const override;
    int ListFiles(Text filter, List<Text>& items, bool recurse=false) const override;
    int Load(const char* name, std::uint8_t*& buf, bool null_terminate=false) const override;

protected:
    const char* m_path;
};


#endif  // DataSource_h