// Generated file -- DO NOT MODIFY.
#include "{{file}}.server.h"

#include <mammoth/util/debug.h>
#include <zcall.h>

{% if package != None %}
namespace {{package.cpp_namespace()}} {
{% endif %}
namespace {

const uint32_t kSentinel = 0xBEEFDEAD;
const uint32_t kHeaderSize = 0x10;

void WriteError(glcr::ByteBuffer& buffer, glcr::ErrorCode err) {
  buffer.WriteAt<uint32_t>(0, kSentinel);
  buffer.WriteAt<uint32_t>(4, kHeaderSize);
  buffer.WriteAt<uint64_t>(8, err); 
}

void WriteHeader(glcr::ByteBuffer& buffer, uint64_t message_length) {
  buffer.WriteAt<uint32_t>(0, kSentinel);
  buffer.WriteAt<uint32_t>(4, kHeaderSize + message_length);
  buffer.WriteAt<uint64_t>(8, glcr::OK); 
}

}  // namespace


{% for interface in interfaces %}
void {{interface.name}}ServerBaseThreadBootstrap(void* server_base) {
  (({{interface.name}}ServerBase*)server_base)->ServerThread();
}

{{interface.name}}ServerBase::~{{interface.name}}ServerBase() {
  if (endpoint_ != 0) {
    check(ZCapRelease(endpoint_));
  }
}

glcr::ErrorOr<z_cap_t> {{interface.name}}ServerBase::CreateClientCap() {
  uint64_t client_cap;
  RET_ERR(ZCapDuplicate(endpoint_, ~(kZionPerm_Read), &client_cap));
  return client_cap;
}

glcr::ErrorOr<{{interface.name}}Client> {{interface.name}}ServerBase::CreateClient() {
  uint64_t client_cap;
  RET_ERR(ZCapDuplicate(endpoint_, ~(kZionPerm_Read), &client_cap));
  return {{interface.name}}Client(client_cap);
}

Thread {{interface.name}}ServerBase::RunServer() {
  return Thread({{interface.name}}ServerBaseThreadBootstrap, this);
}

void {{interface.name}}ServerBase::ServerThread() {
  glcr::ByteBuffer recv_buffer(0x1000);
  glcr::CapBuffer recv_cap(0x10);
  glcr::ByteBuffer resp_buffer(0x1000);
  glcr::CapBuffer resp_cap(0x10);
  z_cap_t reply_port_cap;

  while (true) {
    uint64_t recv_cap_size = 0x10;
    uint64_t recv_buf_size = 0x1000;
    recv_cap.Reset();
    glcr::ErrorCode recv_err = static_cast<glcr::ErrorCode>(ZEndpointRecv(endpoint_, &recv_buf_size, recv_buffer.RawPtr(), &recv_cap_size, recv_cap.RawPtr(), &reply_port_cap));
    if (recv_err != glcr::OK) {
      dbgln("Error in receive: {x}", recv_err);
      continue;
    }

    uint64_t resp_length = 0;
    
    glcr::ErrorCode reply_err = glcr::OK;
    resp_cap.Reset();
    glcr::Status err = HandleRequest(recv_buffer, recv_cap, resp_buffer, resp_length, resp_cap);
    if (!err) {
      WriteError(resp_buffer, err.code());
      dbgln("Responding Error {}", err.message());
      reply_err = static_cast<glcr::ErrorCode>(ZReplyPortSend(reply_port_cap, kHeaderSize, resp_buffer.RawPtr(), 0, nullptr));
    } else {
      WriteHeader(resp_buffer, resp_length);
      reply_err = static_cast<glcr::ErrorCode>(ZReplyPortSend(reply_port_cap, kHeaderSize + resp_length, resp_buffer.RawPtr(), resp_cap.UsedSlots(), resp_cap.RawPtr()));
    }
    if (reply_err != glcr::OK) {
      dbgln("Error in reply: {x}", reply_err);
    }
  }

}

glcr::Status {{interface.name}}ServerBase::HandleRequest(const glcr::ByteBuffer& request,
                                                         const glcr::CapBuffer& req_caps,
                                                         glcr::ByteBuffer& response, uint64_t& resp_length,
                                                         glcr::CapBuffer& resp_caps) {
  if (request.At<uint32_t>(0) != kSentinel) {
    return glcr::InvalidArgument("Request Not Valid");
  } 
  
  uint64_t method_select = request.At<uint64_t>(8);

  switch(method_select) {
{%- for method in interface.methods %}
    case {{method.number}}: {

  {% if method.request != None %}
      {{method.request}} yunq_request;
      yunq::MessageView request_view(request, kHeaderSize);
      RETURN_ERROR(yunq_request.ParseFromBytes(request_view, req_caps));
  {% endif %}

  {% if method.response != None %}
      {{method.response}} yunq_response;
  {% endif %}

  {% if method.request == None %}
      RETURN_ERROR(Handle{{method.name}}(yunq_response));
  {% elif method.response == None %}
      RETURN_ERROR(Handle{{method.name}}(yunq_request));
  {% else %}
      RETURN_ERROR(Handle{{method.name}}(yunq_request, yunq_response));
  {% endif %}

  {% if method.response != None %}
      resp_length = yunq_response.SerializeToBytes(response, kHeaderSize, resp_caps);
  {% else %}
      resp_length = 0;
  {% endif %}
      break;
    }
{%- endfor %}
    default: {
      return glcr::Unimplemented("Method unimplemented by server.");
    }
  }
  return glcr::Status::Ok();
}
{% endfor %}

{% if package != None %}
}  // namepace {{package.cpp_namespace()}}
{% endif %}