1 files changed, 39 insertions, 0 deletions
diff --git a/src/gapi.js b/src/gapi.js
new file mode 100644
index 0000000..975d4d9
--- /dev/null
+++ b/src/gapi.js
@@ -0,0 +1,39 @@
+/* global chrome */
+const gapi_base = 'https://www.googleapis.com/calendar/v3';
+
+function to_params(dict) {
+    return Object.entries(dict).map(([k, v]) => `${encodeURIComponent(k)}=${encodeURIComponent(v)}`).join('&');
+}
+
+export function getAuthToken() {
+    return new Promise(resolver =>
+        chrome.identity.getAuthToken(
+            {interactive: true}, token => resolver(token)));
+}
+
+export function getCalendars(token) {
+    return fetch(gapi_base + '/users/me/calendarList?' + to_params({access_token: token}),
+            { method: 'GET', async: true })
+        .then(response => response.json())
+        .then(data => data.items);
+}
+
+export function genEventsGetter(calId, timeMin, timeMax) {
+    return token => fetch(gapi_base + '/calendars/' + calId + '/events?' + to_params({
+        access_token: token,
+        timeMin,
+        timeMax
+    }), { method: 'GET', async: true })
+        .then(response => {
+            if (response.status === 200)
+                return response.json()
+            else throw `got response ${response.status}`;
+        })
+        .catch(e => { console.log(e); return []; })
+        .then(data => data.items);
+}
+
+export function getColors(token) {
+    return fetch(gapi_base + '/colors?' + to_params({access_token: token}), { method: 'GET', async: true })
+        .then(response => response.json());
+}