feat: add dateFormat (#56)

package.json

@@ -37,6 +37,7 @@
 	"dependencies": {
 		"handlebars": "^4.7.7",
 		"handlebars-group-by": "^1.0.1",
-		"handlebars-helpers": "^0.10.0"
+		"handlebars-helpers": "^0.10.0",
+		"moment": "^2.29.4"
 	}
 }

src/renderer.ts

@@ -3,6 +3,7 @@ import { IbookPluginSettings } from '@/config';
 import { RendererData } from '@/types';
 import helpers from 'handlebars-helpers';
 import groupBy from 'handlebars-group-by';
+import moment from 'moment';
 
 export class Renderer {
 	private settings: IbookPluginSettings;
@@ -15,6 +16,16 @@ export class Renderer {
 		const source = this.settings.template;
 		handlebars.registerHelper(groupBy(handlebars));
 		handlebars.registerHelper(helpers(handlebars));
+		handlebars.registerHelper("dateFormat", (date, format, utc) => {
+			// issue: https://github.com/bingryan/obsidian-ibook-plugin/issues/53
+			const cocoaOffset = 978307200;
+			if (typeof date === 'string') {
+				date = parseInt(date);
+			}
+			const dateTime = moment.unix(date + cocoaOffset);
+			return (utc === true) ? dateTime.utc().format(format) : dateTime.format(format);
+		});
+
 		const template = handlebars.compile(source);
 		return template(data);
 	}

yarn.lock

@@ -2638,7 +2638,7 @@ module-alias@^2.2.2:
   resolved "https://registry.npmmirror.com/module-alias/-/module-alias-2.2.2.tgz#151cdcecc24e25739ff0aa6e51e1c5716974c0e0"
   integrity sha512-A/78XjoX2EmNvppVWEhM2oGk3x4lLxnkEA4jTbaK97QKSDjkIoOsKQlfylt/d3kKKi596Qy3NP5XrXJ6fZIC9Q==
 
-[email protected], moment@^2.18.1:
+[email protected], moment@^2.18.1, moment@^2.29.4:
   version "2.29.4"
   resolved "https://registry.npmmirror.com/moment/-/moment-2.29.4.tgz#3dbe052889fe7c1b2ed966fcb3a77328964ef108"
   integrity sha512-5LC9SOxjSc2HF6vO2CyuTDNivEdoz2IvyJJGj6X8DJ0eFyfszE0QiEd+iXmBvUP3WHxSjFH/vIsA0EN00cgr8w==