#pragma once

// This file is autogenerated by:
//   cbindgen --config cbindgen.toml src/ffi.rs -o include/lmp.h
// Don't modify manually.

#include <stdint.h>

/// Link Manager callbacks
struct LinkManagerOps {
  void* user_pointer;
  uint16_t (*get_handle)(void* user, const uint8_t (*address)[6]);
  void (*get_address)(void* user, uint16_t handle, uint8_t (*result)[6]);
  uint64_t (*extended_features)(void* user, uint8_t features_page);
  void (*send_hci_event)(void* user, const uint8_t* data, uintptr_t len);
  void (*send_lmp_packet)(void* user, const uint8_t (*to)[6],
                          const uint8_t* data, uintptr_t len);
};

extern "C" {

/// Create a new link manager instance
/// # Arguments
/// * `ops` - Function callbacks required by the link manager
const LinkManager* link_manager_create(LinkManagerOps ops);

/// Register a new link with a peer inside the link manager
/// # Arguments
/// * `lm` - link manager pointer
/// * `peer` - peer address as array of 6 bytes
/// # Safety
/// - This should be called from the thread of creation
/// - `lm` must be a valid pointer
/// - `peer` must be valid for reads for 6 bytes
bool link_manager_add_link(const LinkManager* lm, const uint8_t (*peer)[6]);

/// Unregister a link with a peer inside the link manager
/// Returns true if successful
/// # Arguments
/// * `lm` - link manager pointer
/// * `peer` - peer address as array of 6 bytes
/// # Safety
/// - This should be called from the thread of creation
/// - `lm` must be a valid pointer
/// - `peer` must be valid for reads for 6 bytes
bool link_manager_remove_link(const LinkManager* lm, const uint8_t (*peer)[6]);

/// Run the Link Manager procedures
/// # Arguments
/// * `lm` - link manager pointer
/// # Safety
/// - This should be called from the thread of creation
/// - `lm` must be a valid pointer
void link_manager_tick(const LinkManager* lm);

/// Process an HCI packet with the link manager
/// Returns true if successful
/// # Arguments
/// * `lm` - link manager pointer
/// * `data` - HCI packet data
/// * `len` - HCI packet len
/// # Safety
/// - This should be called from the thread of creation
/// - `lm` must be a valid pointer
/// - `data` must be valid for reads of len `len`
bool link_manager_ingest_hci(const LinkManager* lm, const uint8_t* data,
                             uintptr_t len);

/// Process an LMP packet from a peer with the link manager
/// Returns true if successful
/// # Arguments
/// * `lm` - link manager pointer
/// * `from` - Address of peer as array of 6 bytes
/// * `data` - HCI packet data
/// * `len` - HCI packet len
/// # Safety
/// - This should be called from the thread of creation
/// - `lm` must be a valid pointers
/// - `from` must be valid pointer for reads for 6 bytes
/// - `data` must be valid for reads of len `len`
bool link_manager_ingest_lmp(const LinkManager* lm, const uint8_t (*from)[6],
                             const uint8_t* data, uintptr_t len);

/// Deallocate the link manager instance
/// # Arguments
/// * `lm` - link manager pointer
/// # Safety
/// - This should be called from the thread of creation
/// - `lm` must be a valid pointers and must not be reused afterwards
void link_manager_destroy(const LinkManager* lm);

}  // extern "C"