#ifndef ECEX_BUFFERS_H
#define ECEX_BUFFERS_H

#include "types.h"

#include <stddef.h>

buffer_t *buffer_new(const char *name, const char *path, int read_only);
void buffer_free(buffer_t *buffer);

int buffer_reserve(buffer_t *buffer, size_t needed);
int buffer_clear(buffer_t *buffer);
int buffer_set_text(buffer_t *buffer, const char *text);

int buffer_insert_at(buffer_t *buffer, size_t pos, const char *text);
int buffer_insert(buffer_t *buffer, const char *text);
int buffer_append(buffer_t *buffer, const char *text);
int buffer_prepend(buffer_t *buffer, const char *text);

int buffer_insert_char_at(buffer_t *buffer, size_t pos, char c);
int buffer_insert_char(buffer_t *buffer, char c);

int buffer_delete_range(buffer_t *buffer, size_t start, size_t end);
int buffer_delete_selection(buffer_t *buffer);
int buffer_replace_selection(buffer_t *buffer, const char *text);
int buffer_backspace(buffer_t *buffer);
int buffer_delete_forward(buffer_t *buffer);
int buffer_kill_line(buffer_t *buffer);
int buffer_undo(buffer_t *buffer);
int buffer_redo(buffer_t *buffer);
void buffer_clear_undo(buffer_t *buffer);

void buffer_set_point(buffer_t *buffer, size_t point);
void buffer_move_left(buffer_t *buffer);
void buffer_move_right(buffer_t *buffer);
void buffer_move_up(buffer_t *buffer);
void buffer_move_down(buffer_t *buffer);
void buffer_move_word_left(buffer_t *buffer);
void buffer_move_word_right(buffer_t *buffer);
void buffer_move_beginning_of_line(buffer_t *buffer);
void buffer_move_end_of_line(buffer_t *buffer);
void buffer_move_beginning_of_buffer(buffer_t *buffer);
void buffer_move_end_of_buffer(buffer_t *buffer);
int buffer_search_forward(buffer_t *buffer, const char *query, size_t start, size_t *out_pos);
int buffer_search_backward(buffer_t *buffer, const char *query, size_t start, size_t *out_pos);

void buffer_set_mark(buffer_t *buffer, size_t mark);
void buffer_clear_mark(buffer_t *buffer);
int buffer_has_selection(buffer_t *buffer);
void buffer_selection_range(buffer_t *buffer, size_t *out_start, size_t *out_end);

size_t buffer_line_start_at(buffer_t *buffer, size_t pos);
size_t buffer_line_end_at(buffer_t *buffer, size_t pos);
size_t buffer_current_line_start(buffer_t *buffer);
size_t buffer_current_line_end(buffer_t *buffer);
size_t buffer_current_column(buffer_t *buffer);
size_t buffer_current_line_number(buffer_t *buffer);
size_t buffer_line_count(buffer_t *buffer);

char *buffer_substring(buffer_t *buffer, size_t start, size_t end);
char *buffer_current_line_copy(buffer_t *buffer);

int buffer_load_file(buffer_t *buffer, const char *path);
int buffer_save(buffer_t *buffer);
int buffer_save_as(buffer_t *buffer, const char *path);

void buffer_set_interactive(buffer_t *buffer, int interactive);
int buffer_is_interactive(buffer_t *buffer);
int buffer_clear_interactive_actions(buffer_t *buffer);
int buffer_add_interactive_action(buffer_t *buffer,
                                  size_t line,
                                  ecex_interactive_line_fn fn,
                                  const char *payload,
                                  void *userdata);
ecex_interactive_line_action_t *buffer_interactive_action_at_line(buffer_t *buffer,
                                                                  size_t line);

int ecex_buffer_set_renderer(buffer_t *buffer,
                             ecex_buffer_render_fn fn,
                             void *userdata,
                             ecex_buffer_userdata_free_fn free_fn,
                             int flags);
int ecex_buffer_clear_renderer(buffer_t *buffer);
int ecex_buffer_has_renderer(buffer_t *buffer);
void *ecex_buffer_renderer_userdata(buffer_t *buffer);
int ecex_buffer_set_mouse_handler(buffer_t *buffer,
                                  ecex_buffer_mouse_fn fn,
                                  void *userdata,
                                  ecex_buffer_userdata_free_fn free_fn);
int ecex_buffer_clear_mouse_handler(buffer_t *buffer);
int ecex_buffer_has_mouse_handler(buffer_t *buffer);
void *ecex_buffer_mouse_userdata(buffer_t *buffer);
int ecex_buffer_set_animation(buffer_t *buffer,
                              ecex_buffer_tick_fn fn,
                              void *userdata,
                              ecex_buffer_userdata_free_fn free_fn,
                              double fps);
int ecex_buffer_set_animation_ms(buffer_t *buffer,
                                 ecex_buffer_tick_ms_fn fn,
                                 void *userdata,
                                 ecex_buffer_userdata_free_fn free_fn,
                                 int fps);
int ecex_buffer_clear_animation(buffer_t *buffer);
int ecex_buffer_is_animating(buffer_t *buffer);
void *ecex_buffer_animation_userdata(buffer_t *buffer);
int ecex_tick_animations(ecex_t *ed, double now_seconds);
int ecex_buffer_replace_text(buffer_t *buffer, const char *text);
void ecex_buffer_set_modified(buffer_t *buffer, int modified);
int ecex_buffer_text_len(buffer_t *buffer);
int ecex_buffer_scroll_line(buffer_t *buffer);
int ecex_buffer_line_count_i(buffer_t *buffer);
int ecex_buffer_line_copy(buffer_t *buffer, int line, char *out, int out_cap);

#endif