From 0eb18d206d83b2a51fe57641d6ee9a3c865a07d8 Mon Sep 17 00:00:00 2001
From: Ben Fisher <jamon.ben@gmail.com>
Date: Sun, 11 Nov 2018 12:17:43 -0800
Subject: [PATCH] Patch to implement feature, exporting notes to JSON (#912,
 issues/912). (#927)

* Patch to implement feature, exporting notes to JSON (#912, issues/912).

* Revising based on feedback

* Directly calling JSON.stringify on the item
---
 CliClient/tests/services_InteropService.js    | 21 +++++++++++++
 ReactNativeClient/lib/models/BaseItem.js      | 11 +++++--
 .../lib/services/InteropService.js            |  4 +++
 .../services/InteropService_Exporter_Json.js  | 30 +++++++++++++++++++
 4 files changed, 63 insertions(+), 3 deletions(-)
 create mode 100644 ReactNativeClient/lib/services/InteropService_Exporter_Json.js

diff --git a/CliClient/tests/services_InteropService.js b/CliClient/tests/services_InteropService.js
index 40b9f0959..d53f8f628 100644
--- a/CliClient/tests/services_InteropService.js
+++ b/CliClient/tests/services_InteropService.js
@@ -310,4 +310,25 @@ describe('services_InteropService', function() {
 		expect(note2_2.body.indexOf(note1_2.id) >= 0).toBe(true);
 	}));
 
+	it('should export into json format', asyncTest(async () => {
+		const service = new InteropService();
+		let folder1 = await Folder.save({ title: 'folder1' });
+		let note1 = await Note.save({ title: 'ma note', parent_id: folder1.id });
+		note1 = await Note.load(note1.id);
+		const filePath = exportDir();
+
+		await service.export({ path: filePath, format: 'json' });
+
+		// verify that the json files exist and can be parsed
+		const items = [folder1, note1];
+		for (let i = 0; i < items.length; i++) {
+			const jsonFile = filePath + '/' + items[i].id + '.json'; 
+			let json = await fs.readFile(jsonFile, 'utf-8');
+			let obj = JSON.parse(json);
+			expect(obj.id).toBe(items[i].id);
+			expect(obj.type_).toBe(items[i].type_);
+			expect(obj.title).toBe(items[i].title);
+			expect(obj.body).toBe(items[i].body);
+		}
+	}));
 });
\ No newline at end of file
diff --git a/ReactNativeClient/lib/models/BaseItem.js b/ReactNativeClient/lib/models/BaseItem.js
index 36773d510..7930a1820 100644
--- a/ReactNativeClient/lib/models/BaseItem.js
+++ b/ReactNativeClient/lib/models/BaseItem.js
@@ -75,9 +75,14 @@ class BaseItem extends BaseModel {
 		return r.total;
 	}
 
-	static systemPath(itemOrId) {
-		if (typeof itemOrId === 'string') return itemOrId + '.md';
-		return itemOrId.id + '.md';
+	static systemPath(itemOrId, extension = null) {
+		if (extension === null)
+			extension = 'md';
+
+		if (typeof itemOrId === 'string')
+			return itemOrId + '.' + extension;
+		else
+			return itemOrId.id + '.' + extension;
 	}
 
 	static isSystemPath(path) {
diff --git a/ReactNativeClient/lib/services/InteropService.js b/ReactNativeClient/lib/services/InteropService.js
index f7a14db37..c67f0b947 100644
--- a/ReactNativeClient/lib/services/InteropService.js
+++ b/ReactNativeClient/lib/services/InteropService.js
@@ -58,6 +58,10 @@ class InteropService {
 				format: 'raw',
 				target: 'directory',
 				description: _('Joplin Export Directory'),
+			}, {
+				format: 'json',
+				target: 'directory',
+				description: _('Json Export Directory'),
 			}, {
 				format: 'md',
 				target: 'directory',
diff --git a/ReactNativeClient/lib/services/InteropService_Exporter_Json.js b/ReactNativeClient/lib/services/InteropService_Exporter_Json.js
new file mode 100644
index 000000000..8bcb634af
--- /dev/null
+++ b/ReactNativeClient/lib/services/InteropService_Exporter_Json.js
@@ -0,0 +1,30 @@
+const InteropService_Exporter_Base = require('lib/services/InteropService_Exporter_Base');
+const { basename, filename } = require('lib/path-utils.js');
+const { shim } = require('lib/shim');
+
+class InteropService_Exporter_Json extends InteropService_Exporter_Base {
+
+	async init(destDir) {
+		this.destDir_ = destDir;
+		this.resourceDir_ = destDir ? destDir + '/resources' : null;
+
+		await shim.fsDriver().mkdir(this.destDir_);
+		await shim.fsDriver().mkdir(this.resourceDir_);
+	}
+
+	async processItem(ItemClass, item) {
+		const fileName = ItemClass.systemPath(item, "json");
+		const filePath = this.destDir_ + '/' + fileName;
+		const serialized = JSON.stringify(item);
+		await shim.fsDriver().writeFile(filePath, serialized, 'utf-8');
+	}
+
+	async processResource(resource, filePath) {
+		const destResourcePath = this.resourceDir_ + '/' + basename(filePath);
+		await shim.fsDriver().copy(filePath, destResourcePath);
+	}
+
+	async close() {}
+}
+
+module.exports = InteropService_Exporter_Json;
\ No newline at end of file