deleteFolder

browser/main/lib/dataApi/deleteFolder.js

@@ -0,0 +1,75 @@
+const _ = require('lodash')
+const path = require('path')
+const resolveStorageData = require('./resolveStorageData')
+const resolveStorageNotes = require('./resolveStorageNotes')
+const CSON = require('season')
+const sander = require('sander')
+
+/**
+ * @param {String} storageKey
+ * @param {String} folderKey
+ *
+ * @return {Object}
+ * ```
+ * {
+ *   storage: Object,
+ *   folder: folderKey
+ * }
+ * ```
+ */
+function deleteFolder (storageKey, folderKey) {
+  let rawStorages
+  let targetStorage
+  try {
+    rawStorages = JSON.parse(localStorage.getItem('storages'))
+    if (!_.isArray(rawStorages)) throw new Error('Target storage doesn\'t exist.')
+
+    targetStorage = _.find(rawStorages, {key: storageKey})
+    if (targetStorage == null) throw new Error('Target storage doesn\'t exist.')
+  } catch (e) {
+    return Promise.reject(e)
+  }
+
+  return resolveStorageData(targetStorage)
+    .then(function assignNotes (storage) {
+      return resolveStorageNotes(storage)
+        .then((notes) => {
+          return {
+            storage,
+            notes
+          }
+        })
+    })
+    .then(function deleteFolderAndNotes (data) {
+      let { storage, notes } = data
+      storage.folders = storage.folders
+        .filter(function excludeTargetFolder (folder) {
+          return folder.key !== folderKey
+        })
+
+      let targetNotes = notes.filter(function filterTargetNotes (note) {
+        return note.folder === folderKey
+      })
+
+      let deleteAllNotes = targetNotes
+        .map(function deleteNote (note) {
+          const notePath = path.join(storage.path, 'notes', note.key + '.cson')
+          return sander.unlink(notePath)
+            .catch(function (err) {
+              console.warn('Failed to delete', notePath, err)
+            })
+        })
+      return Promise.all(deleteAllNotes)
+        .then(() => storage)
+    })
+    .then(function (storage) {
+      CSON.writeFileSync(path.join(storage.path, 'boostnote.json'), _.pick(storage, ['folders', 'version']))
+
+      return {
+        storage,
+        folder: folderKey
+      }
+    })
+}
+
+module.exports = deleteFolder