added indexDB

src/api/idb.js

@@ -0,0 +1,114 @@
+const DB_NAME = 'getbibledb';
+const DB_VERSION = 1;
+let DB;
+
+export default {
+
+	async getDb() {
+		return new Promise((resolve, reject) => {
+
+			if(DB) { return resolve(DB); }
+			console.log('OPENING DB', DB);
+			let request = window.indexedDB.open(DB_NAME, DB_VERSION);
+			
+			request.onerror = e => {
+				console.log('Error opening db', e);
+				reject('Error');
+			};
+	
+			request.onsuccess = e => {
+				DB = e.target.result;
+				resolve(DB);
+			};
+			
+			request.onupgradeneeded = e => {
+				console.log('onupgradeneeded');
+				let db = e.target.result;
+				db.createObjectStore("savedTranslations", { autoIncrement: true, keyPath:'id' });
+			};
+		});
+	},
+	async deleteTranslation(tr) {
+
+		let db = await this.getDb();
+
+		return new Promise(resolve => {
+
+			let trans = db.transaction(['savedTranslations'],'readwrite');
+			trans.oncomplete = () => {
+				resolve();
+			};
+
+			let store = trans.objectStore('savedTranslations');
+			store.delete(tr.id);
+		});	
+	},
+	async getTranslations() {
+
+		let db = await this.getDb();
+
+		return new Promise(resolve => {
+
+			let trans = db.transaction(['savedTranslations'],'readonly');
+			trans.oncomplete = () => {
+				resolve(tr);
+			};
+			
+			let store = trans.objectStore('savedTranslations');
+			let tr = [];
+			
+			store.openCursor().onsuccess = e => {
+				let cursor = e.target.result;
+				if (cursor) {
+					tr.push(cursor.value)
+					cursor.continue();
+				}
+			};
+
+		});
+	},
+
+	async saveTranslation(tr) {
+
+		let db = await this.getDb();
+
+		return new Promise(resolve => {
+
+			let trans = db.transaction(['savedTranslations'],'readwrite');
+			trans.oncomplete = () => {
+				resolve();
+			};
+
+			let store = trans.objectStore('savedTranslations');
+			store.put(tr);
+
+		});
+	
+    },
+    async getTranslation(abbr) {
+
+		let db = await this.getDb();
+
+		return new Promise(resolve => {
+
+			let trans = db.transaction(['savedTranslations'],'readonly');
+			trans.oncomplete = () => {
+				resolve(tr);
+			};
+			
+			let store = trans.objectStore('savedTranslations');
+			let tr = {};
+			
+			store.openCursor().onsuccess = e => {
+				let cursor = e.target.result;
+				if (cursor) {
+                    if(abbr == cursor.value.abbreviation)
+					tr = cursor.value
+					cursor.continue();
+				}
+			};
+
+		});
+	},
+
+}