From cc37f7f7b78c957a3f5767883507f6ed741bf0d3 Mon Sep 17 00:00:00 2001
From: Andreas E <andreas.everos@gmail.com>
Date: Sun, 13 Sep 2020 14:26:42 +0200
Subject: [PATCH] Update preview download to get link from GitHub releases
 (#344)

No longer downloads from tachiyomi.kanade.eu
---
 src/.vuepress/components/DownloadButtons.vue |  14 +-
 src/.vuepress/constants.js                   |   3 +-
 src/.vuepress/store/index.js                 | 164 ++++++++++++++-----
 3 files changed, 135 insertions(+), 46 deletions(-)

diff --git a/src/.vuepress/components/DownloadButtons.vue b/src/.vuepress/components/DownloadButtons.vue
index 4eff1544..826001a6 100644
--- a/src/.vuepress/components/DownloadButtons.vue
+++ b/src/.vuepress/components/DownloadButtons.vue
@@ -15,7 +15,7 @@
 <script>
 import CloudDownloadIcon from "vue-material-design-icons/CloudDownload.vue";
 import BugIcon from "vue-material-design-icons/Bug.vue";
-import { GITHUB_LATEST_RELEASE, KANADE_LATEST } from "../constants";
+import { GITHUB_LATEST_RELEASE, GITHUB_PREVIEW_RELEASE } from "../constants";
 
 export default {
 	components: {
@@ -27,6 +27,8 @@ export default {
 		return {
 			tagName: "",
 			browserDownloadUrl: "",
+			previewTagName: "",
+			previewbrowserDownloadUrl: "",
 		};
 	},
 
@@ -39,6 +41,14 @@ export default {
 		} catch (e) {
 			console.error(e);
 		}
+		try {
+			const { data } = await this.$store.dispatch("getPreviewReleaseData");
+			const apkAsset = data.assets.find((a) => a.name.includes(".apk"));
+			this.$data.previewTagName = data.tag_name.slice(1);
+			this.$data.previewbrowserDownloadUrl = apkAsset.browser_download_url;
+		} catch (e) {
+			console.error(e);
+		}
 	},
 
 	methods: {
@@ -95,7 +105,7 @@ export default {
 							popup: "animate__animated animate__faster animate__zoomOut",
 						},
 					});
-					window.location.assign(KANADE_LATEST);
+					window.location.assign(this.$data.previewbrowserDownloadUrl || GITHUB_PREVIEW_RELEASE);
 					window.ga("send", "event", "Action", "Download", "Tachiyomi Preview");
 				}
 			});
diff --git a/src/.vuepress/constants.js b/src/.vuepress/constants.js
index 2edf4f84..69fd9650 100644
--- a/src/.vuepress/constants.js
+++ b/src/.vuepress/constants.js
@@ -1,4 +1,5 @@
 export const GITHUB_EXTENSION_JSON = "https://raw.githubusercontent.com/inorichi/tachiyomi-extensions/repo/index.json";
 export const GITHUB_LATEST_RELEASE = "https://github.com/inorichi/tachiyomi/releases/latest";
 export const GITHUB_LATEST_API = "https://api.github.com/repos/inorichi/tachiyomi/releases/latest";
-export const KANADE_LATEST = "https://tachiyomi.kanade.eu/latest";
+export const GITHUB_PREVIEW_API = "https://api.github.com/repos/tachiyomiorg/android-app-preview/releases/latest";
+export const GITHUB_PREVIEW_RELEASE = "https://github.com/tachiyomiorg/android-app-preview/releases/latest";
diff --git a/src/.vuepress/store/index.js b/src/.vuepress/store/index.js
index 3fec8aff..ce978463 100644
--- a/src/.vuepress/store/index.js
+++ b/src/.vuepress/store/index.js
@@ -2,67 +2,145 @@ import Vue from "vue";
 import Vuex from "vuex";
 import axios from "axios";
 
-import { GITHUB_LATEST_API } from "../constants";
+import { GITHUB_LATEST_API, GITHUB_PREVIEW_API } from "../constants";
 
-let call = null;
+const worker = (function () {
+	const networkMap = new Map();
+
+	// Makes sure there is only one network call to API
+	// Everyone else wait for promise
+	function _getDataFromGithub(name, url) {
+		if (networkMap.has(name)) {
+			return networkMap.get(name);
+		}
+
+		const call = axios
+			.get(url)
+			.then((value) => {
+				networkMap.delete(name);
+				return Promise.resolve(value);
+			})
+			.catch((reason) => {
+				networkMap.delete(name);
+				return Promise.reject(reason);
+			});
+
+		networkMap.set(name, call);
+
+		return call;
+	}
+
+	const dataMap = new Map();
+
+	const now = new Date().getTime();
+
+	// Makes sure there is only one mutation
+	// Everyone else wait for promise
+	function _getData(store, name, type, url) {
+		if (dataMap.has(name)) {
+			return dataMap.get(name);
+		}
+
+		const promise = _getDataFromGithub(name, url)
+			.then(({ data }) => {
+				const object = {
+					updated: now,
+					data,
+				};
+				store.commit({
+					type,
+					object,
+				});
+				dataMap.delete(name);
+				return Promise.resolve();
+			})
+			.catch((reason) => {
+				const object = {
+					updated: null,
+					data: null,
+				};
+				store.commit({
+					type,
+					object,
+				});
+				dataMap.delete(name);
+				return Promise.reject(reason);
+			});
+
+		dataMap.set(name, promise);
+
+		return promise;
+	}
+
+	return {
+		getPreviewData(store, name) {
+			return new Promise((resolve, reject) => {
+				_getData(store, name, "setPreviewReleaseData", GITHUB_PREVIEW_API)
+					.then(() => {
+						resolve(store.state.preview);
+					})
+					.catch((reason) => {
+						reject(reason);
+					});
+			});
+		},
+		getStableData(store, name) {
+			return new Promise((resolve, reject) => {
+				_getData(store, name, "setStableReleaseData", GITHUB_LATEST_API)
+					.then(() => {
+						resolve(store.state.stable);
+					})
+					.catch((reason) => {
+						reject(reason);
+					});
+			});
+		},
+	};
+})();
 
 Vue.use(Vuex);
+
 export default new Vuex.Store({
 	state: {
 		stable: {
 			updated: null,
 			data: null,
 		},
+		preview: {
+			updated: null,
+			data: null,
+		},
 	},
 	mutations: {
-		setStableReleaseData(state, stable) {
+		setStableReleaseData(state, { object }) {
 			// eslint-disable-next-line no-param-reassign
-			state.stable = stable;
+			state.stable = object;
+		},
+		setPreviewReleaseData(state, { object }) {
+			// eslint-disable-next-line no-param-reassign
+			state.preview = object;
 		},
 	},
 	actions: {
-		getStableReleaseData({ commit }) {
-			return new Promise((resolve, reject) => {
-				const { updated } = this.state.stable;
-				const now = new Date().getTime();
+		getStableReleaseData() {
+			const { updated } = this.state.stable;
+			const now = new Date().getTime();
 
-				if (updated != null && now - updated <= 60 * 60 * 24 * 1000) {
-					return resolve(this.state.stable);
-				}
+			if (updated != null && now - updated <= 60 * 60 * 24 * 1000) {
+				return Promise.resolve(this.state.stable);
+			}
 
-				// Makes sure only one network call and one mutation happens
-				if (call == null) {
-					call = axios
-						.get(GITHUB_LATEST_API)
-						.then(({ data }) => {
-							const object = {
-								updated: now,
-								data,
-							};
-							commit("setStableReleaseData", object);
-							call = null;
-							return Promise.resolve(this.state.stable);
-						})
-						.catch((reason) => {
-							const object = {
-								updated: null,
-								data: null,
-							};
-							commit("setStableReleaseData", object);
-							call = null;
-							return Promise.reject(reason);
-						});
-				}
+			return worker.getStableData(this, "stable");
+		},
+		getPreviewReleaseData() {
+			const { updated } = this.state.preview;
+			const now = new Date().getTime();
 
-				// Waits for network call and mutation to be done
-				return call
-					.then((value) => {
-						return resolve(value);
-					})
-					.catch((reason) => {
-						return reject(reason);
-					});
-			});
+			if (updated != null && now - updated <= 60 * 60 * 24 * 1000) {
+				return Promise.resolve(this.state.preview);
+			}
+
+			return worker.getPreviewData(this, "preview");
 		},
 	},
 });