#ifndef ANT_STREAM_MODULE_H
#define ANT_STREAM_MODULE_H

#include "types.h"

typedef void (*stream_finalize_fn)(
  ant_t *js,
  ant_value_t stream_obj,
  void *state
);

typedef struct {
  bool writing;
  bool pending_final;
  bool final_started;
  void *attached_state;
  stream_finalize_fn attached_state_finalize;
} stream_private_state_t;

void stream_init_constructors(ant_t *js);

ant_value_t stream_library(ant_t *js);
ant_value_t stream_promises_library(ant_t *js);
ant_value_t stream_web_library(ant_t *js);

ant_value_t stream_readable_constructor(ant_t *js);
ant_value_t stream_writable_constructor(ant_t *js);
ant_value_t stream_readable_prototype(ant_t *js);
ant_value_t stream_writable_prototype(ant_t *js);
ant_value_t stream_duplex_prototype(ant_t *js);

ant_value_t stream_construct_readable(ant_t *js, ant_value_t base_proto, ant_value_t options);
ant_value_t stream_construct_writable(ant_t *js, ant_value_t base_proto, ant_value_t options);
ant_value_t stream_readable_push(ant_t *js, ant_value_t stream_obj, ant_value_t chunk, ant_value_t encoding);
ant_value_t stream_readable_maybe_read(ant_t *js, ant_value_t stream_obj);
ant_value_t stream_readable_flush(ant_t *js, ant_value_t stream_obj);
ant_value_t stream_readable_push_value(ant_t *js, ant_value_t stream_obj, ant_value_t chunk, ant_value_t encoding);
ant_value_t stream_readable_continue_flowing(ant_t *js, ant_value_t *args, int nargs);
ant_value_t stream_readable_begin_flowing(ant_t *js, ant_value_t stream_obj);
ant_value_t stream_writable_begin_end(ant_t *js, ant_value_t stream_obj, ant_value_t callback);

void stream_init_readable_object(ant_t *js, ant_value_t obj, ant_value_t options);
void stream_init_writable_object(ant_t *js, ant_value_t obj, ant_value_t options);
void stream_init_duplex_object(ant_t *js, ant_value_t obj, ant_value_t options);

void *stream_get_attached_state(ant_value_t stream_obj);
void stream_clear_attached_state(ant_value_t stream_obj);
void stream_set_attached_state(ant_value_t stream_obj, void *state, stream_finalize_fn finalize);

#endif