#pragma once

#ifdef __cplusplus
extern "C" {
#endif

#include <stdint.h>
#include <stdlib.h>

#ifndef UNUSED
#define UNUSED(x) (void)(x)
#endif

#define LWIP_UNUSED_ARG(x) UNUSED(x)

typedef void sFONT;

#define LCD_COLOR_BLACK 0
#define LCD_COLOR_WHITE 1
#define LCD_TRANSPARENT 2

#define LCD_FONT16 0
#define LCD_FONT24 (void*)1

typedef int8_t err_t;
/** Definitions for error constants. */
typedef enum {
    /** No error, everything OK. */
    ERR_OK = 0,
    /** Out of memory error.     */
    ERR_MEM = -1,
    /** Buffer error.            */
    ERR_BUF = -2,
    /** Timeout.                 */
    ERR_TIMEOUT = -3,
    /** Routing problem.         */
    ERR_RTE = -4,
    /** Operation in progress    */
    ERR_INPROGRESS = -5,
    /** Illegal value.           */
    ERR_VAL = -6,
    /** Operation would block.   */
    ERR_WOULDBLOCK = -7,
    /** Address in use.          */
    ERR_USE = -8,
    /** Already connecting.      */
    ERR_ALREADY = -9,
    /** Conn already established.*/
    ERR_ISCONN = -10,
    /** Not connected.           */
    ERR_CONN = -11,
    /** Low-level netif error    */
    ERR_IF = -12,

    /** Connection aborted.      */
    ERR_ABRT = -13,
    /** Connection reset.        */
    ERR_RST = -14,
    /** Connection closed.       */
    ERR_CLSD = -15,
    /** Illegal argument.        */
    ERR_ARG = -16
} err_enum_t;

struct pbuf {
    struct pbuf* next;
    void* payload;
    uint16_t tot_len;
    uint16_t len;
    uint8_t type_internal;
    uint8_t flags;
    // LWIP_PBUF_REF_T ref;

    uint8_t if_idx;
};

struct tcp_pcb {
    uint8_t state;
};
typedef void sFONT;

#define ERR_OK          0
#define LCD_COLOR_BLACK 0
#define LCD_COLOR_WHITE 1
#define LCD_TRANSPARENT 2

#define LCD_FONT16 0
#define LCD_FONT24 (void*)1

#define TCP_WRITE_FLAG_COPY 0x01
#define TCP_WRITE_FLAG_MORE 0x02

#define TCP_PRIO_MIN    1
#define TCP_PRIO_NORMAL 64
#define TCP_PRIO_MAX    127
#define IP_ADDR_ANY     0

typedef err_t (*tcp_recv_fn)(void* arg, struct tcp_pcb* tpcb, struct pbuf* p, err_t err);

typedef err_t (*tcp_accept_fn)(void* arg, struct tcp_pcb* newpcb, err_t err);

uint32_t logger_get_timestamp(void);

void lcd_display_text(const char* text, uint16_t x_pos, uint16_t y_pos, uint32_t color, uint32_t bg_color, sFONT* font);
void lcd_draw_img_from_fs(char* filename, uint32_t x_pos, uint32_t y_pos);
void lcd_draw_gif_from_fs(char* filename, uint32_t x_pos, uint32_t y_pos);
void lcd_draw_bmp_img(uint8_t* bmp_buff, uint32_t x_pos, uint32_t y_pos);
void lcd_draw_gif(uint8_t* gif_buff, size_t len, uint32_t x_pos, uint32_t y_pos);

void lcd_clear_images(void);
void lcd_clear_text(void);

struct tcp_pcb* tcp_new(void);
err_t tcp_bind(void* pcb, void* ipaddr, uint16_t port);
struct tcp_pcb* tcp_listen(void* pcb);
void tcp_accept(void* pcb, tcp_accept_fn arg);
void tcp_arg(void* pcb, void* arg);
void tcp_sent(void* pcb, void* arg);
void tcp_recv(void* pcb, tcp_recv_fn arg);
void tcp_setprio(void* pcb, uint8_t prio);
void tcp_err(void* pcb, void* err);
void tcp_poll(void* pcb, void* poll, uint8_t interval);
err_t tcp_close(void* pcb);

void tcp_write(void* pcb, const char* data, size_t len, uint8_t apiflags);
void tcp_output(void* pcb);
void tcp_recved(void* pcb, uint16_t len);
void pbuf_free(struct pbuf* p);

size_t tcp_sndbuf(void* pcb);

uint16_t pbuf_copy_partial(const struct pbuf* buf, void* dataptr, uint16_t len, uint16_t offset);

const char* lwip_strerr(err_t err);

#ifdef __cplusplus
}
#endif