#pragma once
#include <cstdint>

namespace w6300 {

constexpr int SOCK_COUNT = 8;

enum class socket_id : uint8_t {};
enum class port_num : uint16_t {};

enum chip_ctl {
    CW_SYS_LOCK, CW_SYS_UNLOCK, CW_GET_SYSLOCK,
    CW_RESET_WIZCHIP, CW_INIT_WIZCHIP,
    CW_GET_INTERRUPT, CW_CLR_INTERRUPT, CW_SET_INTRMASK, CW_GET_INTRMASK,
    CW_SET_INTRTIME, CW_GET_INTRTIME, CW_SET_IEN, CW_GET_IEN,
    CW_GET_ID, CW_GET_VER, CW_SET_SYSCLK, CW_GET_SYSCLK,
    CW_RESET_PHY, CW_SET_PHYCONF, CW_GET_PHYCONF, CW_GET_PHYSTATUS,
    CW_SET_PHYPOWMODE, CW_GET_PHYPOWMODE, CW_GET_PHYLINK
};

enum net_ctl {
    CN_SET_NETINFO, CN_GET_NETINFO, CN_SET_NETMODE, CN_GET_NETMODE,
    CN_SET_TIMEOUT, CN_GET_TIMEOUT, CN_SET_PREFER, CN_GET_PREFER,
};

enum net_service_ctl {
    CNS_ARP, CNS_PING, CNS_DAD, CNS_SLAAC, CNS_UNSOL_NA, CNS_GET_PREFIX
};

enum intr_kind : uint32_t {
    IK_PPPOE_TERMINATED = (1 << 0), IK_DEST_UNREACH = (1 << 1), IK_IP_CONFLICT = (1 << 2),
    IK_DEST_UNREACH6 = (1 << 4), IK_WOL = (1 << 7), IK_NET_ALL = 0x97,
    IK_SOCK_0 = (1 << 8), IK_SOCK_1 = (1 << 9), IK_SOCK_2 = (1 << 10), IK_SOCK_3 = (1 << 11),
    IK_SOCK_4 = (1 << 12), IK_SOCK_5 = (1 << 13), IK_SOCK_6 = (1 << 14), IK_SOCK_7 = (1 << 15),
    IK_SOCK_ALL = (0xFF << 8),
    IK_SOCKL_TOUT = (1 << 16), IK_SOCKL_ARP4 = (1 << 17), IK_SOCKL_PING4 = (1 << 18),
    IK_SOCKL_ARP6 = (1 << 19), IK_SOCKL_PING6 = (1 << 20), IK_SOCKL_NS = (1 << 21),
    IK_SOCKL_RS = (1 << 22), IK_SOCKL_RA = (1 << 23), IK_SOCKL_ALL = (0xFF << 16),
    IK_INT_ALL = 0x00FFFF97
};

constexpr uint8_t SYS_CHIP_LOCK = (1 << 2);
constexpr uint8_t SYS_NET_LOCK  = (1 << 1);
constexpr uint8_t SYS_PHY_LOCK  = (1 << 0);

constexpr uint8_t PHY_MODE_MANUAL  = 0;
constexpr uint8_t PHY_MODE_AUTONEGO = 1;
constexpr uint8_t PHY_MODE_TE      = 2;
constexpr uint8_t PHY_CONFBY_HW    = 0;
constexpr uint8_t PHY_CONFBY_SW    = 1;
constexpr uint8_t PHY_SPEED_10     = 0;
constexpr uint8_t PHY_SPEED_100    = 1;
constexpr uint8_t PHY_DUPLEX_HALF  = 0;
constexpr uint8_t PHY_DUPLEX_FULL  = 1;
constexpr uint8_t PHY_LINK_OFF     = 0;
constexpr uint8_t PHY_LINK_ON      = 1;
constexpr uint8_t PHY_POWER_NORM   = 0;
constexpr uint8_t PHY_POWER_DOWN   = 1;

struct phy_conf {
    uint8_t by;
    uint8_t mode;
    uint8_t speed;
    uint8_t duplex;
};

enum ipconf_mode : uint8_t {
    NETINFO_NONE = 0x00, NETINFO_STATIC_V4 = 0x01, NETINFO_STATIC_V6 = 0x02,
    NETINFO_STATIC_ALL = 0x03, NETINFO_SLAAC_V6 = 0x04,
    NETINFO_DHCP_V4 = 0x10, NETINFO_DHCP_V6 = 0x20, NETINFO_DHCP_ALL = 0x30
};

enum dhcp_mode : uint8_t { NETINFO_STATIC = 1, NETINFO_DHCP };

struct net_info {
    uint8_t mac[6];
    uint8_t ip[4];
    uint8_t sn[4];
    uint8_t gw[4];
    uint8_t lla[16];
    uint8_t gua[16];
    uint8_t sn6[16];
    uint8_t gw6[16];
    uint8_t dns[4];
    uint8_t dns6[16];
    ipconf_mode ipmode;
    dhcp_mode dhcp;
};

enum netmode_type : uint32_t {
    NM_IPB_V4 = (1 << 0), NM_IPB_V6 = (1 << 1), NM_WOL = (1 << 2),
    NM_PB6_MULTI = (1 << 4), NM_PB6_ALLNODE = (1 << 5), NM_MR_MASK = 0x37,
    NM_PPPoE = (1 << 8), NM_DHA_SELECT = (1 << 15), NM_MR2_MASK = (0x09 << 8),
    NM_PB4_ALL = (1 << 16), NM_TRSTB_V4 = (1 << 17), NM_PARP_V4 = (1 << 18),
    NM_UNRB_V4 = (1 << 19), NM_NET4_MASK = (0x0F << 16),
    NM_PB6_ALL = (1 << 24), NM_TRSTB_V6 = (1 << 25), NM_PARP_V6 = (1 << 26),
    NM_UNRB_V6 = (1 << 27), NM_NET6_MASK = (0x0F << 24),
    NM_MASK_ALL = 0x0F0F0937
};

struct net_timeout {
    uint8_t  s_retry_cnt;
    uint16_t s_time_100us;
    uint8_t  sl_retry_cnt;
    uint16_t sl_time_100us;
};

struct ip_address {
    uint8_t ip[16];
    uint8_t len;
};

struct prefix {
    uint8_t  len;
    uint8_t  flag;
    uint32_t valid_lifetime;
    uint32_t preferred_lifetime;
    uint8_t  prefix[16];
};

struct arp_request {
    ip_address destinfo;
    uint8_t dha[6];
};

struct ping_request {
    uint16_t id;
    uint16_t seq;
    ip_address destinfo;
};

int8_t ctl_chip(chip_ctl type, void* arg);
int8_t ctl_net(net_ctl type, void* arg);
int8_t ctl_net_service(net_service_ctl type, void* arg);

void   soft_reset();
int8_t init_buffers(uint8_t* txsize, uint8_t* rxsize);
void   clear_interrupt(intr_kind intr);
intr_kind get_interrupt();
void   set_interrupt_mask(intr_kind intr);
intr_kind get_interrupt_mask();

int8_t get_phy_link();
int8_t get_phy_power_mode();
void   reset_phy();
void   set_phy_conf(phy_conf* conf);
void   get_phy_conf(phy_conf* conf);
void   get_phy_status(phy_conf* conf);
void   set_phy_power_mode(uint8_t pmode);

void set_net_info(net_info* info);
void get_net_info(net_info* info);
void set_net_mode(netmode_type mode);
netmode_type get_net_mode();
void set_timeout(net_timeout* timeout);
void get_timeout(net_timeout* timeout);

int8_t send_arp(arp_request* arp);
int8_t send_ping(ping_request* ping);
int8_t send_dad(uint8_t* ipv6);
int8_t send_slaac(prefix* pfx);
int8_t send_unsolicited();
int8_t get_prefix(prefix* pfx);

void init_spi();
void init_critical_section();
void reset();
void init();
bool check();
void init_net(net_info info);

using iodata_t = uint8_t;
using datasize_t = int16_t;

constexpr int16_t SOCK_OK             = 1;
constexpr int16_t SOCK_BUSY           = 0;
constexpr int16_t SOCK_FATAL          = -1000;
constexpr int16_t SOCK_ERROR          = 0;
constexpr int16_t SOCKERR_SOCKNUM     = SOCK_ERROR - 1;
constexpr int16_t SOCKERR_SOCKOPT     = SOCK_ERROR - 2;
constexpr int16_t SOCKERR_SOCKINIT    = SOCK_ERROR - 3;
constexpr int16_t SOCKERR_SOCKCLOSED  = SOCK_ERROR - 4;
constexpr int16_t SOCKERR_SOCKMODE    = SOCK_ERROR - 5;
constexpr int16_t SOCKERR_SOCKFLAG    = SOCK_ERROR - 6;
constexpr int16_t SOCKERR_SOCKSTATUS  = SOCK_ERROR - 7;
constexpr int16_t SOCKERR_ARG         = SOCK_ERROR - 10;
constexpr int16_t SOCKERR_PORTZERO    = SOCK_ERROR - 11;
constexpr int16_t SOCKERR_IPINVALID   = SOCK_ERROR - 12;
constexpr int16_t SOCKERR_TIMEOUT     = SOCK_ERROR - 13;
constexpr int16_t SOCKERR_DATALEN     = SOCK_ERROR - 14;
constexpr int16_t SOCKERR_BUFFER      = SOCK_ERROR - 15;
constexpr int16_t SOCKFATAL_PACKLEN   = SOCK_FATAL - 1;

constexpr uint8_t SF_MULTI_ENABLE     = 1 << 7;
constexpr uint8_t SF_ETHER_OWN        = 1 << 7;
constexpr uint8_t SF_BROAD_BLOCK      = 1 << 6;
constexpr uint8_t SF_TCP_FPSH         = 1 << 6;
constexpr uint8_t SF_TCP_NODELAY      = 1 << 5;
constexpr uint8_t SF_IGMP_VER2        = 1 << 5;
constexpr uint8_t SF_SOLICIT_BLOCK    = 1 << 5;
constexpr uint8_t SF_ETHER_MULTI4B    = 1 << 5;
constexpr uint8_t SF_UNI_BLOCK        = 1 << 4;
constexpr uint8_t SF_ETHER_MULIT6B    = 1 << 4;
constexpr uint8_t SF_FORCE_ARP        = 1 << 0;
constexpr uint8_t SF_DHA_MANUAL       = 1 << 1;
constexpr uint8_t SF_IO_NONBLOCK      = 1 << 3;

constexpr uint8_t PACK_IPv6           = 1 << 7;
constexpr uint8_t PACK_IPV6_ALLNODE   = PACK_IPv6 | (1 << 6);
constexpr uint8_t PACK_IPV6_MULTI     = PACK_IPv6 | (1 << 5);
constexpr uint8_t PACK_IPV6_LLA       = PACK_IPv6 | (1 << 4);
constexpr uint8_t PACK_COMPLETED      = 1 << 3;
constexpr uint8_t PACK_REMAINED       = 1 << 2;
constexpr uint8_t PACK_FIRST          = 1 << 1;
constexpr uint8_t PACK_NONE           = 0x00;

constexpr uint8_t SRCV6_PREFER_AUTO   = 0x00;
constexpr uint8_t SRCV6_PREFER_LLA    = 0x02;
constexpr uint8_t SRCV6_PREFER_GUA    = 0x03;

constexpr uint8_t TCPSOCK_MODE        = 1 << 2;
constexpr uint8_t TCPSOCK_OP          = 1 << 1;
constexpr uint8_t TCPSOCK_SIP         = 1 << 0;

constexpr uint8_t SOCK_IO_BLOCK       = 0;
constexpr uint8_t SOCK_IO_NONBLOCK    = 1;

int8_t  open_socket(socket_id sn, uint8_t protocol, port_num port, uint8_t flag);
int8_t  close(socket_id sn);
int8_t  listen(socket_id sn);
int8_t  disconnect(socket_id sn);
int32_t send(socket_id sn, uint8_t* buf, uint16_t len);
int32_t recv(socket_id sn, uint8_t* buf, uint16_t len);

enum sockint_kind {
    SIK_CONNECTED     = (1 << 0),
    SIK_DISCONNECTED  = (1 << 1),
    SIK_RECEIVED      = (1 << 2),
    SIK_TIMEOUT       = (1 << 3),
    SIK_SENT          = (1 << 4),
    SIK_ALL           = 0x1F
};

enum sock_ctl {
    CS_SET_IOMODE,
    CS_GET_IOMODE,
    CS_GET_MAXTXBUF,
    CS_GET_MAXRXBUF,
    CS_CLR_INTERRUPT,
    CS_GET_INTERRUPT,
    CS_SET_PREFER,
    CS_GET_PREFER,
    CS_SET_INTMASK,
    CS_GET_INTMASK
};

enum sockopt_type {
    SO_FLAG,
    SO_TTL,
    SO_TOS,
    SO_MSS,
    SO_DESTIP,
    SO_DESTPORT,
    SO_KEEPALIVESEND,
    SO_KEEPALIVEAUTO,
    SO_SENDBUF,
    SO_RECVBUF,
    SO_STATUS,
    SO_EXTSTATUS,
    SO_MODE,
    SO_REMAINSIZE,
    SO_PACKINFO
};

int8_t  ctl_socket(socket_id sn, sock_ctl type, void* arg);
int8_t  set_sockopt(socket_id sn, sockopt_type type, void* arg);
int8_t  get_sockopt(socket_id sn, sockopt_type type, void* arg);
int16_t peek_socket_msg(socket_id sn, uint8_t* submsg, uint16_t subsize);

int8_t  connect(socket_id sn, uint8_t* addr, port_num port, uint8_t addrlen);
int32_t sendto(socket_id sn, uint8_t* buf, uint16_t len, uint8_t* addr, port_num port, uint8_t addrlen);
int32_t recvfrom(socket_id sn, uint8_t* buf, uint16_t len, uint8_t* addr, port_num* port, uint8_t* addrlen);

} // namespace w6300