// This is a generated file, modify: generate/templates/templates/class_content.cc

#include <nan.h>
#include <string.h>

extern "C" {
  #include <git2.h>
 }

#include "../include/nodegit.h"
#include "../include/lock_master.h"
#include "../include/functions/copy.h"
#include "../include/odb.h"
#include "nodegit_wrapper.cc"

  #include "../include/oid.h"
  #include "../include/odb_object.h"
 
#include <iostream>

using namespace std;
using namespace v8;
using namespace node;

  GitOdb::~GitOdb() {
    // this will cause an error if you have a non-self-freeing object that also needs
    // to save values. Since the object that will eventually free the object has no
    // way of knowing to free these values.
                                        }

  void GitOdb::InitializeComponent(v8::Local<v8::Object> target, nodegit::Context *nodegitContext) {
    Nan::HandleScope scope;

    v8::Local<v8::External> nodegitExternal = Nan::New<v8::External>(nodegitContext);
    v8::Local<FunctionTemplate> tpl = Nan::New<FunctionTemplate>(JSNewFunction, nodegitExternal);

    tpl->InstanceTemplate()->SetInternalFieldCount(1);
    tpl->SetClassName(Nan::New("Odb").ToLocalChecked());

          Nan::SetPrototypeMethod(tpl, "addDiskAlternate", AddDiskAlternate, nodegitExternal);
            Nan::SetPrototypeMethod(tpl, "existsPrefix", ExistsPrefix, nodegitExternal);
             Nan::SetMethod(tpl, "hashfile", Hashfile, nodegitExternal);
             Nan::SetMethod(tpl, "open", Open, nodegitExternal);
            Nan::SetPrototypeMethod(tpl, "read", OdbRead, nodegitExternal);
            Nan::SetPrototypeMethod(tpl, "readPrefix", ReadPrefix, nodegitExternal);
            Nan::SetPrototypeMethod(tpl, "write", Write, nodegitExternal);
    
    InitializeTemplate(tpl);

    v8::Local<Function> constructor_template = Nan::GetFunction(tpl).ToLocalChecked();
    nodegitContext->SaveToPersistent("GitOdb::Template", constructor_template);
    Nan::Set(target, Nan::New("Odb").ToLocalChecked(), constructor_template);
  }

 
/*
   * @param String path
     */
NAN_METHOD(GitOdb::AddDiskAlternate) {

  if (info.Length() == 0 || !info[0]->IsString()) {
    return Nan::ThrowError("String path is required.");
  }

  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  AddDiskAlternateBaton* baton = new AddDiskAlternateBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

        baton->odb = Nan::ObjectWrap::Unwrap<GitOdb>(info.This())->GetValue();
// start convert_from_v8 block
  const char * from_path = NULL;

  Nan::Utf8String path(Nan::To<v8::String>(info[0]).ToLocalChecked());
  // malloc with one extra byte so we can add the terminating null character C-strings expect:
  from_path = (const char *) malloc(path.length() + 1);
  // copy the characters from the nodejs string into our C-string (used instead of strdup or strcpy because nulls in
  // the middle of strings are valid coming from nodejs):
  memcpy((void *)from_path, *path, path.length());
  // ensure the final byte of our new string is null, extra casts added to ensure compatibility with various C types
  // used in the nodejs binding generation:
  memset((void *)(((char *)from_path) + path.length()), 0, 1);
// end convert_from_v8 block
          baton->path = from_path;

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  AddDiskAlternateWorker *worker = new AddDiskAlternateWorker(baton, callback, cleanupHandles);

        worker->Reference<GitOdb>("odb", info.This());
           worker->Reference("path", info[0]);
 
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::AddDiskAlternateWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->odb
          ,baton->path
  );

  return lockMaster;
}

void GitOdb::AddDiskAlternateWorker::Execute() {
  git_error_clear();

    int result = git_odb_add_disk_alternate(
baton->odb,baton->path  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::AddDiskAlternateWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.addDiskAlternate").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }


  delete baton;
}

void GitOdb::AddDiskAlternateWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> result = Nan::Undefined();
     
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method addDiskAlternate has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.addDiskAlternate").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method addDiskAlternate has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.addDiskAlternate").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

  }


  delete baton;
}

  
/*
    * @param Oid short_id
   * @param Number len
    * @param Oid callback
   */
NAN_METHOD(GitOdb::ExistsPrefix) {

  if (info.Length() == 0
    || (!info[0]->IsObject() && !info[0]->IsString())) {
    return Nan::ThrowError("Oid short_id is required.");
  }
  if (info.Length() == 1 || !info[1]->IsNumber()) {
    return Nan::ThrowError("Number len is required.");
  }

  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  ExistsPrefixBaton* baton = new ExistsPrefixBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

      baton->out = (git_oid *)malloc(sizeof(git_oid ));
        baton->db = Nan::ObjectWrap::Unwrap<GitOdb>(info.This())->GetValue();
// start convert_from_v8 block
  const git_oid * from_short_id = NULL;
  if (info[0]->IsString()) {
    // Try and parse in a string to a git_oid
    Nan::Utf8String oidString(Nan::To<v8::String>(info[0]).ToLocalChecked());
    git_oid *oidOut = (git_oid *)malloc(sizeof(git_oid));

    if (git_oid_fromstr(oidOut, (const char *) strdup(*oidString)) != GIT_OK) {
      free(oidOut);

      if (git_error_last()) {
        return Nan::ThrowError(git_error_last()->message);
      } else {
        return Nan::ThrowError("Unknown Error");
      }
    }

    from_short_id = oidOut;
  }
  else {
from_short_id = Nan::ObjectWrap::Unwrap<GitOid>(Nan::To<v8::Object>(info[0]).ToLocalChecked())->GetValue();
  }
// end convert_from_v8 block
          baton->short_id = from_short_id;
            baton->short_idNeedsFree = info[0]->IsString();
// start convert_from_v8 block
  size_t from_len;
      from_len = (size_t)   info[1].As<v8::Number>()->Value();
// end convert_from_v8 block
          baton->len = from_len;

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  ExistsPrefixWorker *worker = new ExistsPrefixWorker(baton, callback, cleanupHandles);

        worker->Reference<GitOdb>("db", info.This());
             worker->Reference<GitOid>("short_id", info[0]);
             worker->Reference("len", info[1]);
 
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::ExistsPrefixWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->out
          ,baton->db
          ,baton->short_id
  );

  return lockMaster;
}

void GitOdb::ExistsPrefixWorker::Execute() {
  git_error_clear();

    int result = git_odb_exists_prefix(
baton->out,baton->db,baton->short_id,baton->len  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::ExistsPrefixWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.existsPrefix").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }

      if (baton->short_idNeedsFree) {
        baton->short_idNeedsFree = false;
        free((void *)baton->short_id);
      }

  delete baton;
}

void GitOdb::ExistsPrefixWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> v8ConversionSlot;
// start convert_to_v8 block
    if (baton->out != NULL) {
        v8ConversionSlot = GitOid::New(
        baton->out,
        true
       );
   }
  else {
    v8ConversionSlot = Nan::Null();
  }
  // end convert_to_v8 block
      v8::Local<v8::Value> result = v8ConversionSlot;
         
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method existsPrefix has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.existsPrefix").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method existsPrefix has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.existsPrefix").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

  }

      if (baton->short_idNeedsFree) {
        baton->short_idNeedsFree = false;
        free((void *)baton->short_id);
      }

  delete baton;
}

  
/*
  * @param String path
   * @param Number type
    * @param Oid callback
   */
NAN_METHOD(GitOdb::Hashfile) {

  if (info.Length() == 0 || !info[0]->IsString()) {
    return Nan::ThrowError("String path is required.");
  }

  if (info.Length() == 1 || !info[1]->IsNumber()) {
    return Nan::ThrowError("Number type is required.");
  }

  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  HashfileBaton* baton = new HashfileBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

      baton->out = (git_oid *)malloc(sizeof(git_oid ));
// start convert_from_v8 block
  const char * from_path = NULL;

  Nan::Utf8String path(Nan::To<v8::String>(info[0]).ToLocalChecked());
  // malloc with one extra byte so we can add the terminating null character C-strings expect:
  from_path = (const char *) malloc(path.length() + 1);
  // copy the characters from the nodejs string into our C-string (used instead of strdup or strcpy because nulls in
  // the middle of strings are valid coming from nodejs):
  memcpy((void *)from_path, *path, path.length());
  // ensure the final byte of our new string is null, extra casts added to ensure compatibility with various C types
  // used in the nodejs binding generation:
  memset((void *)(((char *)from_path) + path.length()), 0, 1);
// end convert_from_v8 block
          baton->path = from_path;
// start convert_from_v8 block
  git_object_t from_type;
      from_type = (git_object_t)  (int) info[1].As<v8::Number>()->Value();
// end convert_from_v8 block
          baton->type = from_type;

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  HashfileWorker *worker = new HashfileWorker(baton, callback, cleanupHandles);

           worker->Reference("path", info[0]);
            worker->Reference("type", info[1]);
 
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::HashfileWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->out
          ,baton->path
  );

  return lockMaster;
}

void GitOdb::HashfileWorker::Execute() {
  git_error_clear();

    int result = git_odb_hashfile(
baton->out,baton->path,baton->type  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::HashfileWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.hashfile").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }


  delete baton;
}

void GitOdb::HashfileWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> v8ConversionSlot;
// start convert_to_v8 block
    if (baton->out != NULL) {
        v8ConversionSlot = GitOid::New(
        baton->out,
        true
       );
   }
  else {
    v8ConversionSlot = Nan::Null();
  }
  // end convert_to_v8 block
      v8::Local<v8::Value> result = v8ConversionSlot;
       
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method hashfile has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.hashfile").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method hashfile has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.hashfile").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

  }


  delete baton;
}

  
/*
  * @param String objects_dir
    * @param Odb callback
   */
NAN_METHOD(GitOdb::Open) {

  if (info.Length() == 0 || !info[0]->IsString()) {
    return Nan::ThrowError("String objects_dir is required.");
  }

  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  OpenBaton* baton = new OpenBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

// start convert_from_v8 block
  const char * from_objects_dir = NULL;

  Nan::Utf8String objects_dir(Nan::To<v8::String>(info[0]).ToLocalChecked());
  // malloc with one extra byte so we can add the terminating null character C-strings expect:
  from_objects_dir = (const char *) malloc(objects_dir.length() + 1);
  // copy the characters from the nodejs string into our C-string (used instead of strdup or strcpy because nulls in
  // the middle of strings are valid coming from nodejs):
  memcpy((void *)from_objects_dir, *objects_dir, objects_dir.length());
  // ensure the final byte of our new string is null, extra casts added to ensure compatibility with various C types
  // used in the nodejs binding generation:
  memset((void *)(((char *)from_objects_dir) + objects_dir.length()), 0, 1);
// end convert_from_v8 block
          baton->objects_dir = from_objects_dir;

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  OpenWorker *worker = new OpenWorker(baton, callback, cleanupHandles);

           worker->Reference("objects_dir", info[0]);
 
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::OpenWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->objects_dir
  );

  return lockMaster;
}

void GitOdb::OpenWorker::Execute() {
  git_error_clear();

    int result = git_odb_open(
&baton->out,baton->objects_dir  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::OpenWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.open").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }

      git_odb_free(baton->out);

  delete baton;
}

void GitOdb::OpenWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> v8ConversionSlot;
// start convert_to_v8 block
    if (baton->out != NULL) {
        v8ConversionSlot = GitOdb::New(
        baton->out,
        true
       );
   }
  else {
    v8ConversionSlot = Nan::Null();
  }
  // end convert_to_v8 block
      v8::Local<v8::Value> result = v8ConversionSlot;
     
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method open has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.open").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method open has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.open").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

        git_odb_free(baton->out);
  }


  delete baton;
}

  
/*
    * @param Oid id
    * @param OdbObject callback
   */
NAN_METHOD(GitOdb::OdbRead) {

  if (info.Length() == 0
    || (!info[0]->IsObject() && !info[0]->IsString())) {
    return Nan::ThrowError("Oid id is required.");
  }
  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  OdbReadBaton* baton = new OdbReadBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

        baton->db = Nan::ObjectWrap::Unwrap<GitOdb>(info.This())->GetValue();
// start convert_from_v8 block
  const git_oid * from_id = NULL;
  if (info[0]->IsString()) {
    // Try and parse in a string to a git_oid
    Nan::Utf8String oidString(Nan::To<v8::String>(info[0]).ToLocalChecked());
    git_oid *oidOut = (git_oid *)malloc(sizeof(git_oid));

    if (git_oid_fromstr(oidOut, (const char *) strdup(*oidString)) != GIT_OK) {
      free(oidOut);

      if (git_error_last()) {
        return Nan::ThrowError(git_error_last()->message);
      } else {
        return Nan::ThrowError("Unknown Error");
      }
    }

    from_id = oidOut;
  }
  else {
from_id = Nan::ObjectWrap::Unwrap<GitOid>(Nan::To<v8::Object>(info[0]).ToLocalChecked())->GetValue();
  }
// end convert_from_v8 block
          baton->id = from_id;
            baton->idNeedsFree = info[0]->IsString();

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  OdbReadWorker *worker = new OdbReadWorker(baton, callback, cleanupHandles);

        worker->Reference<GitOdb>("db", info.This());
             worker->Reference<GitOid>("id", info[0]);
  
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::OdbReadWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->db
          ,baton->id
  );

  return lockMaster;
}

void GitOdb::OdbReadWorker::Execute() {
  git_error_clear();

    int result = git_odb_read(
&baton->out,baton->db,baton->id  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::OdbReadWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.read").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }

      if (baton->idNeedsFree) {
        baton->idNeedsFree = false;
        free((void *)baton->id);
      }

  delete baton;
}

void GitOdb::OdbReadWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> v8ConversionSlot;
// start convert_to_v8 block
    if (baton->out != NULL) {
      v8::Local<v8::Array> owners = Nan::New<Array>(0);
            Nan::Set(owners, Nan::New<v8::Number>(owners->Length()), Nan::To<v8::Object>(this->GetFromPersistent("db")).ToLocalChecked());
             v8ConversionSlot = GitOdbObject::New(
        baton->out,
        true
          , owners
       );
   }
  else {
    v8ConversionSlot = Nan::Null();
  }
  // end convert_to_v8 block
      v8::Local<v8::Value> result = v8ConversionSlot;
       
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method read has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.read").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method read has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.read").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

  }

      if (baton->idNeedsFree) {
        baton->idNeedsFree = false;
        free((void *)baton->id);
      }

  delete baton;
}

  
/*
    * @param Oid short_id
   * @param Number len
    * @param OdbObject callback
   */
NAN_METHOD(GitOdb::ReadPrefix) {

  if (info.Length() == 0
    || (!info[0]->IsObject() && !info[0]->IsString())) {
    return Nan::ThrowError("Oid short_id is required.");
  }
  if (info.Length() == 1 || !info[1]->IsNumber()) {
    return Nan::ThrowError("Number len is required.");
  }

  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  ReadPrefixBaton* baton = new ReadPrefixBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

        baton->db = Nan::ObjectWrap::Unwrap<GitOdb>(info.This())->GetValue();
// start convert_from_v8 block
  const git_oid * from_short_id = NULL;
  if (info[0]->IsString()) {
    // Try and parse in a string to a git_oid
    Nan::Utf8String oidString(Nan::To<v8::String>(info[0]).ToLocalChecked());
    git_oid *oidOut = (git_oid *)malloc(sizeof(git_oid));

    if (git_oid_fromstr(oidOut, (const char *) strdup(*oidString)) != GIT_OK) {
      free(oidOut);

      if (git_error_last()) {
        return Nan::ThrowError(git_error_last()->message);
      } else {
        return Nan::ThrowError("Unknown Error");
      }
    }

    from_short_id = oidOut;
  }
  else {
from_short_id = Nan::ObjectWrap::Unwrap<GitOid>(Nan::To<v8::Object>(info[0]).ToLocalChecked())->GetValue();
  }
// end convert_from_v8 block
          baton->short_id = from_short_id;
            baton->short_idNeedsFree = info[0]->IsString();
// start convert_from_v8 block
  size_t from_len;
      from_len = (size_t)   info[1].As<v8::Number>()->Value();
// end convert_from_v8 block
          baton->len = from_len;

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  ReadPrefixWorker *worker = new ReadPrefixWorker(baton, callback, cleanupHandles);

        worker->Reference<GitOdb>("db", info.This());
             worker->Reference<GitOid>("short_id", info[0]);
             worker->Reference("len", info[1]);
 
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::ReadPrefixWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->db
          ,baton->short_id
  );

  return lockMaster;
}

void GitOdb::ReadPrefixWorker::Execute() {
  git_error_clear();

    int result = git_odb_read_prefix(
&baton->out,baton->db,baton->short_id,baton->len  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::ReadPrefixWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.readPrefix").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }

      if (baton->short_idNeedsFree) {
        baton->short_idNeedsFree = false;
        free((void *)baton->short_id);
      }

  delete baton;
}

void GitOdb::ReadPrefixWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> v8ConversionSlot;
// start convert_to_v8 block
    if (baton->out != NULL) {
      v8::Local<v8::Array> owners = Nan::New<Array>(0);
            Nan::Set(owners, Nan::New<v8::Number>(owners->Length()), Nan::To<v8::Object>(this->GetFromPersistent("db")).ToLocalChecked());
             v8ConversionSlot = GitOdbObject::New(
        baton->out,
        true
          , owners
       );
   }
  else {
    v8ConversionSlot = Nan::Null();
  }
  // end convert_to_v8 block
      v8::Local<v8::Value> result = v8ConversionSlot;
         
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method readPrefix has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.readPrefix").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method readPrefix has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.readPrefix").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

  }

      if (baton->short_idNeedsFree) {
        baton->short_idNeedsFree = false;
        free((void *)baton->short_id);
      }

  delete baton;
}

  
/*
    * @param Buffer data
   * @param Number len
   * @param Number type
    * @param Oid callback
   */
NAN_METHOD(GitOdb::Write) {

  if (info.Length() == 0 || !info[0]->IsString()) {
    return Nan::ThrowError("Buffer data is required.");
  }

  if (info.Length() == 1 || !info[1]->IsNumber()) {
    return Nan::ThrowError("Number len is required.");
  }

  if (info.Length() == 2 || !info[2]->IsNumber()) {
    return Nan::ThrowError("Number type is required.");
  }

  if (!info[info.Length() - 1]->IsFunction()) {
    return Nan::ThrowError("Callback is required and must be a Function.");
  }

  WriteBaton* baton = new WriteBaton();

  baton->error_code = GIT_OK;
  baton->error = NULL;


  nodegit::Context *nodegitContext = reinterpret_cast<nodegit::Context *>(info.Data().As<External>()->Value());
  std::map<std::string, std::shared_ptr<nodegit::CleanupHandle>> cleanupHandles;

      baton->out = (git_oid *)malloc(sizeof(git_oid ));
        baton->odb = Nan::ObjectWrap::Unwrap<GitOdb>(info.This())->GetValue();
// start convert_from_v8 block
  const void * from_data = NULL;

  Nan::Utf8String data(Nan::To<v8::String>(info[0]).ToLocalChecked());
  // malloc with one extra byte so we can add the terminating null character C-strings expect:
  from_data = (const void *) malloc(data.length() + 1);
  // copy the characters from the nodejs string into our C-string (used instead of strdup or strcpy because nulls in
  // the middle of strings are valid coming from nodejs):
  memcpy((void *)from_data, *data, data.length());
  // ensure the final byte of our new string is null, extra casts added to ensure compatibility with various C types
  // used in the nodejs binding generation:
  memset((void *)(((char *)from_data) + data.length()), 0, 1);
// end convert_from_v8 block
          baton->data = from_data;
// start convert_from_v8 block
  size_t from_len;
      from_len = (size_t)   info[1].As<v8::Number>()->Value();
// end convert_from_v8 block
          baton->len = from_len;
// start convert_from_v8 block
  git_object_t from_type;
      from_type = (git_object_t)  (int) info[2].As<v8::Number>()->Value();
// end convert_from_v8 block
          baton->type = from_type;

  Nan::Callback *callback = new Nan::Callback(v8::Local<Function>::Cast(info[info.Length() - 1]));
  WriteWorker *worker = new WriteWorker(baton, callback, cleanupHandles);

        worker->Reference<GitOdb>("odb", info.This());
           worker->Reference("data", info[0]);
            worker->Reference("len", info[1]);
            worker->Reference("type", info[2]);
 
  nodegitContext->QueueWorker(worker);
  return;
}

nodegit::LockMaster GitOdb::WriteWorker::AcquireLocks() {
  nodegit::LockMaster lockMaster(
    /*asyncAction: */true
          ,baton->out
          ,baton->odb
          ,baton->data
  );

  return lockMaster;
}

void GitOdb::WriteWorker::Execute() {
  git_error_clear();

    int result = git_odb_write(
baton->out,baton->odb,baton->data,baton->len,baton->type  );

      baton->error_code = result;

      if (result != GIT_OK && git_error_last() != NULL) {
        baton->error = git_error_dup(git_error_last());
      }

}

void GitOdb::WriteWorker::HandleErrorCallback() {
  if (!GetIsCancelled()) {
    v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error(ErrorMessage())).ToLocalChecked();
    Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.write").ToLocalChecked());
    v8::Local<v8::Value> argv[1] = {
      err
    };
    callback->Call(1, argv, async_resource);
  }

  if (baton->error) {
    if (baton->error->message) {
      free((void *)baton->error->message);
    }

    free((void *)baton->error);
  }


  delete baton;
}

void GitOdb::WriteWorker::HandleOKCallback() {
    if (baton->error_code == GIT_OK) {
    v8::Local<v8::Value> v8ConversionSlot;
// start convert_to_v8 block
    if (baton->out != NULL) {
        v8ConversionSlot = GitOid::New(
        baton->out,
        true
       );
   }
  else {
    v8ConversionSlot = Nan::Null();
  }
  // end convert_to_v8 block
      v8::Local<v8::Value> result = v8ConversionSlot;
           
    v8::Local<v8::Value> argv[2] = {
      Nan::Null(),
      result
    };
    callback->Call(2, argv, async_resource);
  } else {
    if (baton->error) {
      v8::Local<v8::Object> err;
      if (baton->error->message) {
        err = Nan::To<v8::Object>(Nan::Error(baton->error->message)).ToLocalChecked();
      } else {
        err = Nan::To<v8::Object>(Nan::Error("Method write has thrown an error.")).ToLocalChecked();
      }
      Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
      Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.write").ToLocalChecked());
      v8::Local<v8::Value> argv[1] = {
        err
      };
      callback->Call(1, argv, async_resource);
      if (baton->error->message)
        free((void *)baton->error->message);
      free((void *)baton->error);
    } else if (baton->error_code < 0) {
      bool callbackFired = false;
      if (!callbackErrorHandle.IsEmpty()) {
        v8::Local<v8::Value> maybeError = Nan::New(callbackErrorHandle);
        if (!maybeError->IsNull() && !maybeError->IsUndefined()) {
          v8::Local<v8::Value> argv[1] = {
            maybeError
          };
          callback->Call(1, argv, async_resource);
          callbackFired = true;
        }
      }

      if (!callbackFired) {
        v8::Local<v8::Object> err = Nan::To<v8::Object>(Nan::Error("Method write has thrown an error.")).ToLocalChecked();
        Nan::Set(err, Nan::New("errno").ToLocalChecked(), Nan::New(baton->error_code));
        Nan::Set(err, Nan::New("errorFunction").ToLocalChecked(), Nan::New("Odb.write").ToLocalChecked());
        v8::Local<v8::Value> argv[1] = {
          err
        };
        callback->Call(1, argv, async_resource);
      }
    } else {
      callback->Call(0, NULL, async_resource);
    }

  }


  delete baton;
}

    // force base class template instantiation, to make sure we get all the
// methods, statics, etc.
template class NodeGitWrapper<GitOdbTraits>;