package slangc.streams;

public class File {
    private VFS vfs;
    private String path;

    File(VFS vfs, String path) {
        this.vfs = vfs;
        this.path = path;
    }

    public VFS getVFS() {
        return vfs;
    }

    FileInput openInput() throws Error {
        return vfs.openInput(path);
    }

    FileOutput openOutput() throws Error {
        return vfs.openOutput(path);
    }

    File[] list() throws Error {
        return vfs.list(path);
    }

    public String path() {
        return path;
    }

    private static String trimPathSeparator(String path, String sep) {
        int l = path.searchLast(sep);
        if (l >= 0) {
            return path.sub(l + sep.ints().length);
        } else {
            return path;
        }
    }

    public String name() {
        String p = path;
        String[] seps = vfs.allSeparators();
        for (int i = 0; i < seps.length; i++) {
            p = trimPathSeparator(p, seps[i]);
        }
        return p;
    }

    public long size() {
        return vfs.size(path);
    }
}