#ifndef ARRAYLIST_H
#define ARRAYLIST_H

#include <inttypes.h>
#include <stddef.h>
#include <stdbool.h>

typedef struct ArrayList ArrayList;

typedef struct ArraySlice ArraySlice;

typedef enum {
    ARRLIST_OK = 0,
    ARRLIST_OUT_OF_BOUNDS,
    ARRLIST_BAD_ALLOC,
    ARRLIST_ALLOC_OVERFLOW,
    ARRLIST_EMPTY,
    ARRLIST_NULL_ARG,
    ARRLIST_INVALID_ELEM_SIZE,
    ARRLIST_INVALID_CAPACITY,
    ARRLIST_IS_BORROWED,
    ARRLIST_INVALID_SLICE,
} ArrayListErr;

ArrayList *arraylist_init(size_t capacity, size_t elem_size);
ArrayListErr arraylist_destroy(ArrayList **arr);
ArrayListErr arraylist_clear(ArrayList *arr);
ArrayList *arraylist_copy(const ArrayList *arr);

size_t arraylist_size(const ArrayList *arr);
size_t arraylist_capacity(const ArrayList *arr);
bool arraylist_is_empty(const ArrayList *arr);

ArrayListErr arraylist_push_back(ArrayList *arr, void *data);
ArrayListErr arraylist_insert(ArrayList*arr, size_t index, void *data);
ArrayListErr arraylist_push_front(ArrayList* arr, void *data);

// Here out can be null for not having anything writen
ArrayListErr arraylist_pop_back(ArrayList *arr, void *out);
ArrayListErr arraylist_remove_at(ArrayList *arr, size_t index, void *out);
ArrayListErr arraylist_pop_front(ArrayList *arr, void *out);

ArrayListErr arraylist_get(const ArrayList *arr, size_t index, void *out);
ArrayListErr arraylist_set(ArrayList *arr, size_t index, void *data);

ArrayListErr arraylist_resize(ArrayList *arr, size_t new_capacity);
ArrayListErr arraylist_reserve(ArrayList *arr, size_t size_to_reserve);

//Slice stuff
ArraySlice *arraylist_slice(ArrayList *arr, size_t start, size_t len);
ArraySlice *arraylist_slice_unsafe(ArrayList *arr, size_t start, size_t len);
ArrayListErr arrayslice_destroy(ArraySlice **slice);

bool arrayslice_is_valid(const ArraySlice *slice);
size_t arrayslice_size(const ArraySlice *slice);

// peek and next can be null, get can't, like, why would you use get without
// actually getting something?, for validating an index?, use size idiot
ArrayListErr arrayslice_peek(const ArraySlice *slice, void *out);
ArrayListErr arrayslice_next(ArraySlice *slice, void *out);

ArrayListErr arrayslice_reset(ArraySlice *slice);
ArrayListErr arrayslice_advance(ArraySlice *slice, size_t n);

ArrayList *arrayslice_to_arraylist(const ArraySlice *slice);

#endif