var Promise = require("nodegit-promise");
var promisify = require("promisify-node");
var descriptors = require("../generate/idefs.json");
var rawApi;

// Attempt to load the production release first, if it fails fall back to the
// debug release.
try {
  rawApi = require("../build/Release/nodegit");
}
catch (e) {
  /* istanbul ignore next */
  rawApi = require("../build/Debug/nodegit");
}

// Native methods do not return an identifiable function, so this function will
// filter down the function identity to match the libgit2 descriptor.
descriptors.forEach(function(descriptor) {
  if (descriptor.type == "enum") {
    return;
  }
  var Ctor =  rawApi[descriptor.jsClassName];

  // Iterate over each function in the file.
  descriptor.functions.filter(function(func) {
    return func.isAsync;
  }).forEach(function(asyncFunc) {
    var original = null;

    // Special case when you have a prototype method.
    if (asyncFunc.isPrototypeMethod && Ctor.prototype) {
      original = Ctor.prototype[asyncFunc.jsFunctionName];
      Ctor.prototype[asyncFunc.jsFunctionName] = promisify(original);
    }
    else {
      original = Ctor[asyncFunc.jsFunctionName];
      Ctor[asyncFunc.jsFunctionName] = promisify(original);
    }
  });
});

// Set the exports prototype to the raw API.
exports.__proto__ = rawApi;

// Import extensions
require("./attr");
require("./blob");
require("./clone");
require("./checkout");
require("./commit");
require("./diff");
require("./index");
require("./merge");
require("./object");
require("./odb");
require("./odb_object");
require("./oid");
require("./patch");
require("./reference");
require("./remote");
require("./revwalk");
require("./repository");
require("./revwalk");
require("./signature");
require("./status");
require("./tree");
require("./tree_entry");

//must go last!
require("./enums");

// Wrap asynchronous methods to return promises.
promisify(exports);

// Set version.
exports.version = require("../package").version;

// Expose Promise implementation.
exports.Promise = Promise;

// Initialize threads.
exports.Threads.init();