fix: compatible for old version wiki cache #215 (#218)

Author: szl97

api/api.py

@@ -81,9 +81,10 @@ class WikiCacheData(BaseModel):
     """
     wiki_structure: WikiStructureModel
     generated_pages: Dict[str, WikiPage]
-    repo: RepoInfo
-    provider: str
-    model: str
+    repo_url: Optional[str] = None  #compatible for old cache
+    repo: Optional[RepoInfo] = None
+    provider: Optional[str] = None
+    model: Optional[str] = None
 
 class WikiCacheRequest(BaseModel):
     """

src/app/[owner]/[repo]/page.tsx

@@ -1526,11 +1526,21 @@ IMPORTANT:
             const cachedData = await response.json(); // Returns null if no cache
             if (cachedData && cachedData.wiki_structure && cachedData.generated_pages && Object.keys(cachedData.generated_pages).length > 0) {
               console.log('Using server-cached wiki data');
+              if(cachedData.mode) {
+                setSelectedModelState(cachedData.model);
+              }
+              if(cachedData.provider) {
+                setSelectedProviderState(cachedData.provider);
+              }
 
-              setSelectedModelState(cachedData.model);
-              setSelectedProviderState(cachedData.provider);
-              // Update repoInfo 
-              setEffectiveRepoInfo(cachedData.repo); 
+              // Update repoInfo
+              if(cachedData.repo) {
+                setEffectiveRepoInfo(cachedData.repo);
+              } else if (cachedData.repo_url && !effectiveRepoInfo.repoUrl) {
+                const updatedRepoInfo = { ...effectiveRepoInfo, repoUrl: cachedData.repo_url };
+                setEffectiveRepoInfo(updatedRepoInfo); // Update effective repo info state
+                console.log('Using cached repo_url:', cachedData.repo_url);
+              }
 
               // Ensure the cached structure has sections and rootSections
               const cachedStructure = {