Synch shared constants

.gitignore

@@ -10,4 +10,8 @@ src/environments/versions.ts
 
 # editor settings
 .idea
-/.project
+/.project
+
+nbproject/*
+src/.DS_Store
+.DS_Store

fromDataBlue.js

@@ -0,0 +1,76 @@
+const fs = require('fs');
+const axios = require('axios');
+const util = require('util');
+const exec = util.promisify(require('child_process').exec);
+var getRepoInfo = require('git-repo-info');
+
+// API URL.
+const apiUrlBeta = 'https://api.beta.water-fountains.org/';
+const apiUrlStable = 'https://api.water-fountains.org/';
+const apiUrlLocal = 'http://localhost:3000/'; // use in development.
+
+if (process.argv.length > 2) {
+  process.argv.forEach(function (val, index, array) {
+    if (val.indexOf('for') !== -1) {
+      const args = val.split('=')[1].split(',')
+      for (let arg of args) {
+        switch(arg) {
+          case 'fountains':
+            createSharedFile(`./src/assets/fountain_properties.json`, 'fountain_properties');
+            break;
+          case 'locations':
+            createSharedFile(`./src/assets/locations.json`, 'locations');
+            break;
+          case 'constants':
+            createSharedFile(`./src/assets/shared-constants.json`, 'shared-constants');
+            break;
+          default:
+            createSharedFile(`./src/assets/fountain_properties.json`, 'fountain_properties');
+            createSharedFile(`./src/assets/locations.json`, 'locations');
+            createSharedFile(`./src/assets/shared-constants.json`, 'shared-constants');
+        }
+      }
+    }
+  })
+} else {
+  createSharedFile(`./src/assets/fountain_properties.json`, 'fountain_properties');
+  createSharedFile(`./src/assets/locations.json`, 'locations');
+  createSharedFile(`./src/assets/shared-constants.json`, 'shared-constants');
+}
+
+
+async function createSharedFile(filename, url) {
+  const branch = process.env.TRAVIS_BRANCH ||
+               (await exec('git rev-parse --abbrev-ref HEAD', (err, stdout, stderr) => {
+                 if (err) {
+                  var info = getRepoInfo();
+                  callAPI(info.branch, filename, url)
+                 } else if (stdout) {
+                  const branch =  stdout.toString().trim()
+                  callAPI(branch, filename, url)
+                 }
+               }));
+  callAPI(branch, filename, url)
+}
+
+const callAPI = function(branch, filename, url) {
+  const apiUrl = (branch === 'stable') ? apiUrlStable : apiUrlLocal;
+
+  let metadataUrl = `${apiUrl}api/v1/metadata/${url}`;
+
+  // Get fountain_properties data from server and create file.
+  axios.get(metadataUrl)
+  .then(function (response) {
+    // handle success
+    const data = JSON.stringify(response.data, null, 4);
+    if (!fs.existsSync(filename)) {
+      fs.writeFileSync(filename, '', {encoding: 'utf8'});
+    }
+    fs.writeFileSync(filename, data, {encoding: 'utf8'});
+    console.log(`${url} sync DONE.`);
+  })
+  .catch(function (error) {
+    // handle error
+    console.log(error);
+  });
+}