#ifndef file_hh_INCLUDED
#define file_hh_INCLUDED

#include "array_view.hh"
#include "completion.hh"
#include "exception.hh"
#include "regex.hh"

namespace Kakoune
{

struct file_access_error : runtime_error
{
public:
    file_access_error(StringView filename,
                      StringView error_desc)
        : runtime_error(filename + ": "_str + error_desc) {}
};

struct file_not_found : file_access_error
{
    file_not_found(StringView filename)
        : file_access_error(filename, "file not found") {}
};

class Buffer;
class String;
class StringView;

// parse ~/ and $env values in filename and returns the translated filename
String parse_filename(StringView filename);
String real_path(StringView filename);
String compact_path(StringView filename);

// returns pair { directory, filename }
std::pair<StringView, StringView> split_path(StringView path);

String get_kak_binary_path();

String read_fd(int fd);
String read_file(StringView filename);

Buffer* create_buffer_from_file(StringView filename);

void write_buffer_to_file(Buffer& buffer, StringView filename);
void write_buffer_to_fd(Buffer& buffer, int fd);
void write_buffer_to_backup_file(Buffer& buffer);

String find_file(StringView filename, ConstArrayView<String> paths);

time_t get_fs_timestamp(StringView filename);

CandidateList complete_filename(StringView prefix, const Regex& ignore_regex,
                                ByteCount cursor_pos = -1);

CandidateList complete_command(StringView prefix, ByteCount cursor_pos = -1);
}

#endif // file_hh_INCLUDED