Add download UI indicator, download progress, update bookshelf item to show local items and items matches with local item, remove item before downloading if already exists in file system

store/globals.js

@@ -1,8 +1,11 @@
 export const state = () => ({
-
+  itemDownloads: []
 })
 
 export const getters = {
+  getDownloadItem: state => libraryItemId => {
+    return state.itemDownloads.find(i => i.id == libraryItemId)
+  },
   getLibraryItemCoverSrc: (state, getters, rootState, rootGetters) => (libraryItem, placeholder = '/book_placeholder.jpg') => {
     if (!libraryItem) return placeholder
     var media = libraryItem.media
@@ -28,5 +31,15 @@ export const actions = {
 }
 
 export const mutations = {
-
+  addUpdateItemDownload(state, downloadItem) {
+    var index = state.itemDownloads.findIndex(i => i.id == downloadItem.id)
+    if (index >= 0) {
+      state.itemDownloads.splice(index, 1, downloadItem)
+    } else {
+      state.itemDownloads.push(downloadItem)
+    }
+  },
+  removeItemDownload(state, id) {
+    state.itemDownloads = state.itemDownloads.filter(i => i.id != id)
+  }
 }

store/libraries.js

@@ -17,6 +17,10 @@ export const getters = {
   getCurrentLibraryName: (state, getters) => {
     var currLib = getters.getCurrentLibrary
     return currLib ? currLib.name : null
+  },
+  getCurrentLibraryMediaType: (state, getters) => {
+    var currLib = getters.getCurrentLibrary
+    return currLib ? currLib.mediaType : null
   }
 }