1 files changed, 30 insertions, 0 deletions
diff --git a/info.js b/info.js
new file mode 100644
index 0000000..95813b6
--- /dev/null
+++ b/info.js
@@ -0,0 +1,30 @@
+const fs = require("fs").promises
+
+module.exports.doujins = shortNames => fs.readdir(".", {encoding: "utf8", withFileTypes: true})
+	.then(doujins => doujins
+		.map(dirent => fs.readFile(`${dirent.name}/metadata.json`)
+			.then(data => JSON.parse(data.toString()))
+			.then(data => [dirent.name, data])
+			.catch(_ => [])))
+	.then(promises => Promise.all(promises))
+	.then(doujins => doujins
+		.filter(([title, data]) => title && data)
+		.filter(([title, data]) => (title == data.title) == !shortNames))
+	.then(doujins => Object.fromEntries(doujins))
+
+module.exports.tags = _ => {
+	const tags = {"*": []}
+
+	return module.exports.doujins()
+		.then(doujins => Object.values(doujins))
+		.then(doujins => doujins
+			.forEach(doujin => {
+				tags["*"].push(doujin.title)	
+
+				doujin.tag && doujin.tag.forEach(tag => {
+					tags[tag] = tags[tag] || []
+					tags[tag].push(doujin.title)
+				})
+			}))
+		.then(_ => tags)
+}