Fix Init error #77

src/code-store.js

@@ -1,35 +1,28 @@
 import { writable, get } from 'svelte/store';
-// import mermaid from '@mermaid-js/mermaid';
-import mermaid from '@mermaid';
 import { Base64 } from 'js-base64';
-import { push, pop, replace } from 'svelte-spa-router';
-
-export const codeStore = writable({});
+import { replace } from 'svelte-spa-router';
+const isDarkMode =
+  window.matchMedia('(prefers-color-scheme: dark)').matches && false;
+const defaultState = {
+  code: `graph TD
+A[Christmas] -->|Get money| B(Go shopping)
+B --> C{Let me think}
+C -->|One| D[Laptop]
+C -->|Two| E[iPhone]
+C -->|Three| F[fa:fa-car Car]
+  `,
+  mermaid: { theme: isDarkMode ? 'dark' : 'default' },
+};
+export const codeStore = writable(defaultState);
 export const fromUrl = (data) => {
-  let code;
   let state;
-  const isDarkMode =
-    window.matchMedia('(prefers-color-scheme: dark)').matches && false;
   try {
-    let stateStr = Base64.decode(data);
+    const stateStr = Base64.decode(data);
     console.log('state from url', stateStr);
     state = JSON.parse(stateStr);
-
-    if (state.code === undefined) {
-      // not valid json
-      //      state = { code: '', mermaid: { theme: themeFromUrl } }
-    }
-    code = state.code;
   } catch (e) {
-    // console.error('Init error', e);
-    code = `graph TD
-  A[Christmas] -->|Get money| B(Go shopping)
-  B --> C{Let me think}
-  C -->|One| D[Laptop]
-  C -->|Two| E[iPhone]
-  C -->|Three| F[fa:fa-car Car]
-		`;
-    state = { code, mermaid: { theme: isDarkMode ? 'dark' : 'default' } };
+    console.error('Init error', e);
+    state = defaultState;
   }
 
   codeStore.set(state);