sync WIP

services/sync.js

@@ -1,7 +1,94 @@
 "use strict";
 
-function sync() {
+const log = require('./log');
+const rp = require('request-promise');
+const sql = require('./sql');
+const migration = require('./migration');
 
+const SYNC_SERVER = 'http://localhost:3000';
+
+
+let syncInProgress = false;
+
+async function sync() {
+    try {
+        syncInProgress = true;
+
+        if (!await migration.isDbUpToDate()) {
+            return;
+        }
+
+        const lastSynced = parseInt(await sql.getOption('last_synced'));
+
+        const resp = await rp({
+            uri: SYNC_SERVER + '/api/sync/changed/' + lastSynced,
+            headers: {
+                auth: 'sync'
+            },
+            json: true
+        });
+
+        try {
+            sql.beginTransaction();
+
+            for (const treeItem of resp.tree) {
+                delete treeItem['id'];
+
+                await sql.insert("notes_tree", treeItem, true);
+
+                log.info("Syncing notes_tree " + treeItem.note_id);
+            }
+
+            for (const audit of resp.audit_log) {
+                delete audit['id'];
+
+                await sql.insert("audit_log", audit, true);
+
+                log.info("Syncing audit_log for noteId=" + audit.note_id);
+            }
+
+            for (const noteId of resp.notes) {
+                const note = await rp({
+                    uri: SYNC_SERVER + "/api/sync/note/" + noteId + "/" + lastSynced,
+                    headers: {
+                        auth: 'sync'
+                    },
+                    json: true
+                });
+
+                console.log(noteId);
+
+                await sql.insert("notes", note.detail, true);
+
+                await sql.remove("images", noteId);
+
+                for (const image of note.images) {
+                    await sql.insert("images", image);
+                }
+
+                for (const history of note.history) {
+                    delete history['id'];
+
+                    await sql.insert("notes_history", history);
+                }
+            }
+
+            sql.commit();
+        }
+        catch (e) {
+            sql.rollback();
+
+            throw e;
+        }
+    }
+    catch (e) {
+        log.error("sync failed: " + e.stack);
+    }
+    finally {
+        syncInProgress = false;
+    }
 }
 
-setInterval(sync, 60000);
+setInterval(sync, 60000);
+
+setTimeout(sync, 1000);