1 files changed, 57 insertions, 0 deletions
diff --git a/src/loading.js b/src/loading.js
new file mode 100644
index 0000000..2fed39f
--- /dev/null
+++ b/src/loading.js
@@ -0,0 +1,57 @@
+import { writable } from 'svelte/store';
+import { initSearch } from './search';
+import { initDeck } from './deck';
+import { setCardDb, setAltId } from './card_db';
+
+let isLoading = writable(true);
+
+async function fetchCardDb() {
+    let localVer = localStorage.getItem('card_db_ver');
+    try {
+        // load card db
+        let response = await fetch("https://raye.mistivia.com/card_db_parts/version");
+        if (!response.ok) {
+            throw new Error('Network response was not ok');
+        }
+        let data = await response.json();
+        data = String(data)
+        if (localVer === data && localStorage.getItem('card_db') !== null) {
+            setCardDb(JSON.parse(localStorage.getItem('card_db')));
+        } else {
+            localVer = data;
+            response = await fetch("https://raye.mistivia.com/card_db_parts/index.json");
+            if (!response.ok) {
+                throw new Error('Network response was not ok');
+            }
+            data = await response.json();
+            let tasks = data.map((i)=>fetch('https://raye.mistivia.com/card_db_parts/' + i));
+            let datas = await Promise.all(tasks);
+            datas = await Promise.all(datas.map((x) => x.text()));
+            data = JSON.parse(datas.join(''));
+            setCardDb(data);
+            localStorage.setItem('card_db_ver', localVer);
+            localStorage.setItem('card_db', datas.join(''));
+        }
+
+        // load alt id
+        response = await fetch("https://ygocdb.com/api/v0/idChangelog.jsonp");
+        if (!response.ok) {
+            throw new Error('Network response was not ok');
+        }
+        data = await response.json();
+        setAltId(data);
+    } catch (error) {
+        console.log(error);
+        alert("加载失败！请刷新重试");
+        return;
+    }
+    isLoading.set(false);
+    initDeck();
+    initSearch();
+}
+
+fetchCardDb();
+
+export {
+    isLoading,
+};