#ifndef BLUE_CORE_BSTR_H_
#define BLUE_CORE_BSTR_H_

#include <blue/core/misc.h>
#include <blue/core/status.h>
#include <stdarg.h>
#include <stddef.h>

#define B_BSTR_MAGIC 0x5005500550055005ULL

struct b_rope;

enum b_bstr_flags {
	B_BSTR_F_NONE = 0x00u,
	B_BSTR_F_ALLOC = 0x01u,
};

typedef struct b_bstr {
	uint64_t bstr_magic;
	enum b_bstr_flags bstr_flags;
	char *bstr_buf;
	/* total number of characters in bstr_buf, not including null terminator */
	size_t bstr_len;
	/* number of bytes allocated for bstr_buf (includes space for the null
	 * terminator) */
	size_t bstr_capacity;
	int *bstr_istack;
	int bstr_add_indent;
	size_t bstr_istack_ptr, bstr_istack_size;
} b_bstr;

BLUE_API void b_bstr_begin(b_bstr *strv, char *buf, size_t max);
BLUE_API void b_bstr_begin_dynamic(b_bstr *strv);
BLUE_API char *b_bstr_end(b_bstr *strv);
BLUE_API b_status b_bstr_reserve(b_bstr *strv, size_t len);

static inline size_t b_bstr_get_size(const b_bstr *str)
{
	return str->bstr_len;
}

static inline size_t b_bstr_get_capacity(const b_bstr *str)
{
	return str->bstr_capacity;
}

BLUE_API b_status b_bstr_push_indent(b_bstr *strv, int indent);
BLUE_API b_status b_bstr_pop_indent(b_bstr *strv);

BLUE_API b_status b_bstr_write_char(b_bstr *strv, char c);
BLUE_API b_status b_bstr_write_chars(
	b_bstr *strv, const char *cs, size_t len, size_t *nr_written);
BLUE_API b_status b_bstr_write_cstr(
	b_bstr *strv, const char *str, size_t *nr_written);
BLUE_API b_status b_bstr_write_cstr_list(
	b_bstr *strv, const char **strs, size_t *nr_written);
BLUE_API b_status b_bstr_write_cstr_array(
	b_bstr *strv, const char **strs, size_t count, size_t *nr_written);
BLUE_API b_status b_bstr_write_cstr_varg(b_bstr *strv, size_t *nr_written, ...);
BLUE_API b_status b_bstr_write_rope(
	b_bstr *strv, const struct b_rope *rope, size_t *nr_written);
BLUE_API b_status b_bstr_write_fmt(
	b_bstr *strv, size_t *nr_written, const char *format, ...);
BLUE_API b_status b_bstr_write_vfmt(
	b_bstr *strv, size_t *nr_written, const char *format, va_list arg);

BLUE_API char *b_bstr_rope(const struct b_rope *rope, size_t *nr_written);
BLUE_API char *b_bstr_fmt(size_t *nr_written, const char *format, ...);
BLUE_API char *b_bstr_vfmt(size_t *nr_written, const char *format, va_list arg);

#endif