// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

(function() {
  CouchHTTP.prototype.base_url = "http://127.0.0.1:5984"

  if(typeof(CouchHTTP) != "undefined") {
    CouchHTTP.prototype.open = function(method, url, async) {
      if(/^\s*http:\/\//.test(url)) {
        return this._open(method, url, async);
      } else {
        return this._open(method, this.base_url + url, async);
      }
    };
    
    CouchHTTP.prototype.setRequestHeader = function(name, value) {
      // Drop content-length headers because cURL will set it for us
      // based on body length
      if(name.toLowerCase().replace(/^\s+|\s+$/g, '') != "content-length") {
        this._setRequestHeader(name, value);
      }
    }
    
    CouchHTTP.prototype.send = function(body) {
      this._send(body || "");
      var headers = {};
      this._headers.forEach(function(hdr) {
          var pair = hdr.split(":");
          var name = pair.shift();
          headers[name] = pair.join(":").replace(/^\s+|\s+$/g, "");
      });
      this.headers = headers;
    };

    CouchHTTP.prototype.getResponseHeader = function(name) {
      for(var hdr in this.headers) {
        if(hdr.toLowerCase() == name.toLowerCase()) {
          return this.headers[hdr];
        }
      }
      return null;
    };
  }
})();

CouchDB.newXhr = function() {
  return new CouchHTTP();
};