Current Dev State

static/js/ketcher2/script/api.js

@@ -0,0 +1,115 @@
+/****************************************************************************
+ * Copyright 2017 EPAM Systems
+ *
+ * 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 pollDeferred(process, complete, timeGap, startTimeGap) {
+	return new Promise(function (resolve, reject) {
+		function iterate() {
+			process().then(function (val) {
+				try {
+					var finish = complete(val);
+					if (finish)
+						resolve(val);
+					else
+						setTimeout(iterate, timeGap);
+				} catch (e) {
+					reject(e);
+				}
+			}, function (err) {
+				return reject(err);
+			});
+		}
+		setTimeout(iterate, startTimeGap || 0);
+	});
+}
+
+function parametrizeUrl(url, params) {
+	return url.replace(/:(\w+)/g, function (_, val) {
+		return params[val];
+	});
+}
+
+function api(base, defaultOptions) {
+	var baseUrl = !base || /\/$/.test(base) ? base : base + '/';
+
+	var info = request('GET', 'indigo/info').then(function (res) {
+		return { indigoVersion: res.Indigo.version };
+	}).catch(function () {
+		throw Error('Server is not compatible');
+	});
+
+	function request(method, url, data, headers) {
+		if (data && method === 'GET')
+			url = parametrizeUrl(url, data);
+		return fetch(baseUrl + url, {
+			method: method,
+			headers: Object.assign({
+				Accept: 'application/json'
+			}, headers),
+			body: method !== 'GET' ? data : undefined,
+			credentials: 'same-origin'
+		}).then(function (response) {
+			return response.json().then(function (res) {
+				return response.ok ? res : Promise.reject(res.error);
+			});
+		}).catch(function (err) {
+			throw 'Cannot parse result\n' + err;
+		});
+	}
+
+	function indigoCall(method, url, defaultData) {
+		return function (data, options) {
+			var body = Object.assign({}, defaultData, data);
+			body.options = Object.assign(body.options || {},
+			                             defaultOptions, options);
+			return info.then(function () {
+				return request(method, url, JSON.stringify(body), {
+					'Content-Type': 'application/json'
+				});
+			});
+		};
+	}
+
+	return Object.assign(info, {
+		convert: indigoCall('POST', 'indigo/convert'),
+		layout: indigoCall('POST', 'indigo/layout'),
+		clean: indigoCall('POST', 'indigo/clean'),
+		aromatize: indigoCall('POST', 'indigo/aromatize'),
+		dearomatize: indigoCall('POST', 'indigo/dearomatize'),
+		calculateCip: indigoCall('POST', 'indigo/calculate_cip'),
+		automap: indigoCall('POST', 'indigo/automap'),
+		check: indigoCall('POST', 'indigo/check'),
+		calculate: indigoCall('POST', 'indigo/calculate'),
+		recognize: function (blob) {
+			var req = request('POST', 'imago/uploads', blob, {
+				'Content-Type': blob.type || 'application/octet-stream'
+			});
+			var status = request.bind(null, 'GET', 'imago/uploads/:id');
+			return req.then(function (res) {
+				return pollDeferred(
+					status.bind(null, { id: res.upload_id }),
+					function complete(res) {
+						if (res.state === 'FAILURE')
+							throw res;
+						return res.state === 'SUCCESS';
+					}, 500, 300);
+			}).then(function correct(res) {
+				return { struct: res.metadata.mol_str };
+			});
+		}
+	});
+}
+
+// export default api;