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Pre-fetch and Cache Repository Data on Startup #35

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27 changes: 22 additions & 5 deletions package-lock.json
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2 changes: 2 additions & 0 deletions services/cacheService.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,8 @@ export const CacheKeys = {
prDetails: (owner: string, repo: string, prNumber: number) => `pr_${owner}_${repo}_${prNumber}`,
issueExpandedData: (owner: string, repo: string, issueNumber: number) => `expanded_${owner}_${repo}_${issueNumber}`,
workflowFiles: () => 'workflow_files',
repoPullRequests: (owner: string, repo: string) => `pulls_${owner}_${repo}`,
repoDeployments: (owner: string, repo: string) => `deployments_${owner}_${repo}`,
};

// Type for cached expanded issue data (all data needed for expanded view)
Expand Down
32 changes: 32 additions & 0 deletions services/githubService.ts
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Expand Up @@ -19,6 +19,38 @@ export const validateToken = async (token: string): Promise<GitHubUser> => {
return response.json();
};

export const fetchPullRequests = async (token: string, owner: string, repo: string): Promise<Issue[]> => {
const response = await fetch(`${GITHUB_API_BASE}/repos/${owner}/${repo}/pulls?state=all&per_page=30&sort=updated&direction=desc`, {
headers: {
Authorization: `token ${token}`,
Accept: 'application/vnd.github.v3+json',
},
cache: 'no-cache',
});

if (!response.ok) {
throw new Error('Failed to fetch pull requests');
}

return response.json();
};

export const fetchDeployments = async (token: string, owner: string, repo: string): Promise<Deployment[]> => {
const response = await fetch(`${GITHUB_API_BASE}/repos/${owner}/${repo}/deployments?per_page=30`, {
headers: {
Authorization: `token ${token}`,
Accept: 'application/vnd.github.v3+json',
},
cache: 'no-cache',
});

if (!response.ok) {
throw new Error('Failed to fetch deployments');
}

return response.json();
};

export const fetchRepositories = async (token: string, page = 1): Promise<Repository[]> => {
const response = await fetch(`${GITHUB_API_BASE}/user/repos?sort=updated&per_page=12&page=${page}`, {
headers: {
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42 changes: 28 additions & 14 deletions views/Dashboard.tsx
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
import React, { useEffect, useState, useRef } from 'react';
import { Repository, GitHubUser, RepoDraft, Issue, GitHubTemplate } from '../types';
import { fetchRepositories, createRepository, deleteRepository, fetchGitHubTemplates } from '../services/githubService';
import { fetchRepositories, createRepository, deleteRepository, fetchGitHubTemplates, fetchIssues, fetchPullRequests, fetchWorkflowRuns, fetchDeployments } from '../services/githubService';
import { completeRepositorySetup } from '../services/repoSetupUtils';
import { RepoCard } from '../components/RepoCard';
import { Button } from '../components/Button';
Expand Down Expand Up @@ -142,23 +142,37 @@ export const Dashboard: React.FC<DashboardProps> = ({ token, user, onRepoSelect,
// Cache the repos for instant display on next visit
setCache(CacheKeys.repos(), data);

// Load issues for first 4 repos - reuse cache when available
const reposToShow = data.slice(0, 4);
// Pre-fetch issues, PRs, actions, and deployments for the top 4 repos
const reposToPreload = data.slice(0, 4);
const issuesMap: Record<number, Issue[]> = {};

for (const repo of reposToShow) {
const cacheKey = CacheKeys.repoIssues(repo.owner.login, repo.name);
const cachedIssues = getCached<Issue[]>(cacheKey);

if (cachedIssues) {
// Reuse cached issues - filter to actual issues (not PRs) and take first 3
const actualIssues = cachedIssues.filter(issue => !issue.pull_request).slice(0, 3);

await Promise.allSettled(reposToPreload.map(async (repo) => {
try {
// Fetch all data in parallel
const [issues, pullRequests, workflowRuns, deployments] = await Promise.all([
fetchIssues(token, repo.owner.login, repo.name),
fetchPullRequests(token, repo.owner.login, repo.name),
fetchWorkflowRuns(token, repo.owner.login, repo.name),
fetchDeployments(token, repo.owner.login, repo.name),
]);

// Cache each dataset
setCache(CacheKeys.repoIssues(repo.owner.login, repo.name), issues);
setCache(CacheKeys.repoPullRequests(repo.owner.login, repo.name), pullRequests);
setCache(CacheKeys.workflowRuns(repo.owner.login, repo.name), workflowRuns);
setCache(CacheKeys.repoDeployments(repo.owner.login, repo.name), deployments);

// Update the local state for immediate UI update (for issues)
const actualIssues = issues.filter(issue => !issue.pull_request).slice(0, 3);
issuesMap[repo.id] = actualIssues;

} catch (error) {
// Log errors but don't block the UI
console.error(`Failed to preload data for ${repo.name}:`, error);
}
// If not cached, leave empty - issues will be cached when user visits repo detail
}
}));

setRepoIssues(issuesMap);
setRepoIssues(prev => ({ ...prev, ...issuesMap }));
} catch (err) {
// Only show error if we don't have cached data to display
if (!hasCachedData) {
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56 changes: 37 additions & 19 deletions views/RepoDetail.tsx
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
import React, { useEffect, useState, useRef } from 'react';
import { Repository, Issue, WorkflowFile, RepoSecret } from '../types';
import { fetchIssues, createIssue, fetchAllWorkflowFiles, fetchRepositorySecrets, setRepositorySecret, deleteRepositorySecret, createIssueComment } from '../services/githubService';
import { Repository, Issue, WorkflowFile, RepoSecret, WorkflowRun, Deployment } from '../types';
import { fetchIssues, createIssue, fetchAllWorkflowFiles, fetchRepositorySecrets, setRepositorySecret, deleteRepositorySecret, createIssueComment, fetchPullRequests, fetchWorkflowRuns, fetchDeployments } from '../services/githubService';
import { autoSetAllTokens, setupRepositoryWorkflows } from '../services/repoSetupUtils';
import { Button } from '../components/Button';
import { ToastContainer, useToast } from '../components/Toast';
Expand All @@ -16,15 +16,17 @@ interface RepoDetailProps {

export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onIssueSelect }) => {
const { toasts, dismissToast, showError } = useToast();
const cacheKey = CacheKeys.repoIssues(repo.owner.login, repo.name);

// Initialize from cache for instant display
const [issues, setIssues] = useState<Issue[]>(() => {
return getCached<Issue[]>(cacheKey) || [];
});
// Initialize all data from cache for instant display
const [issues, setIssues] = useState<Issue[]>(() => getCached<Issue[]>(CacheKeys.repoIssues(repo.owner.login, repo.name)) || []);
const [pullRequests, setPullRequests] = useState<Issue[]>(() => getCached<Issue[]>(CacheKeys.repoPullRequests(repo.owner.login, repo.name)) || []);
const [workflowRuns, setWorkflowRuns] = useState<WorkflowRun[]>(() => getCached<WorkflowRun[]>(CacheKeys.workflowRuns(repo.owner.login, repo.name)) || []);
const [deployments, setDeployments] = useState<Deployment[]>(() => getCached<Deployment[]>(CacheKeys.repoDeployments(repo.owner.login, repo.name)) || []);

const [loading, setLoading] = useState(() => {
// Only show loading if no cached data
return !getCached<Issue[]>(cacheKey);
// Show loading if any of the primary data is not cached
return !getCached(CacheKeys.repoIssues(repo.owner.login, repo.name)) ||
!getCached(CacheKeys.repoPullRequests(repo.owner.login, repo.name));
});
const [isRefreshing, setIsRefreshing] = useState(false);
const [isModalOpen, setIsModalOpen] = useState(false);
Expand Down Expand Up @@ -81,32 +83,48 @@ export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onI
// Filter out pull requests from the main list
const issuesOnly = issues.filter(issue => !issue.pull_request);

const loadIssues = React.useCallback(async (isManualRefresh = false) => {
const hasCachedData = issues.length > 0;
const loadRepoData = React.useCallback(async (isManualRefresh = false) => {
const hasCachedData = issues.length > 0 || pullRequests.length > 0;

// Show full loading only on first load with no cache
if (!hasCachedData) {
setLoading(true);
} else if (isManualRefresh) {
setIsRefreshing(true);
}

try {
const data = await fetchIssues(token, repo.owner.login, repo.name);
setIssues(data);
// Cache the issues for instant display on next visit
setCache(cacheKey, data);
// Fetch all data in parallel
const [fetchedIssues, fetchedPrs, fetchedRuns, fetchedDeployments] = await Promise.all([
fetchIssues(token, repo.owner.login, repo.name),
fetchPullRequests(token, repo.owner.login, repo.name),
fetchWorkflowRuns(token, repo.owner.login, repo.name),
fetchDeployments(token, repo.owner.login, repo.name),
]);

// Update state
setIssues(fetchedIssues);
setPullRequests(fetchedPrs);
setWorkflowRuns(fetchedRuns);
setDeployments(fetchedDeployments);

// Cache all the data for next time
setCache(CacheKeys.repoIssues(repo.owner.login, repo.name), fetchedIssues);
setCache(CacheKeys.repoPullRequests(repo.owner.login, repo.name), fetchedPrs);
setCache(CacheKeys.workflowRuns(repo.owner.login, repo.name), fetchedRuns);
setCache(CacheKeys.repoDeployments(repo.owner.login, repo.name), fetchedDeployments);

} catch (err) {
console.error(err);
showError("Failed to load repository data.");
} finally {
setLoading(false);
setIsRefreshing(false);
}
}, [token, repo, cacheKey, issues.length]);
}, [token, repo, issues.length, pullRequests.length, showError]);

useEffect(() => {
// Always fetch fresh data on mount, but show cached immediately
loadIssues(false);
loadRepoData(false);
}, []); // eslint-disable-line react-hooks/exhaustive-deps

const handleCreateIssue = async (e: React.FormEvent) => {
Expand Down Expand Up @@ -301,7 +319,7 @@ export const RepoDetail: React.FC<RepoDetailProps> = ({ token, repo, onBack, onI
{isRefreshing && (
<span className="text-sm text-slate-500 dark:text-slate-400 animate-pulse">Updating...</span>
)}
<Button variant="secondary" onClick={() => loadIssues(true)} icon={<RefreshCw size={16} className={isRefreshing ? 'animate-spin' : ''} />} disabled={isRefreshing}>
<Button variant="secondary" onClick={() => loadRepoData(true)} icon={<RefreshCw size={16} className={isRefreshing ? 'animate-spin' : ''} />} disabled={isRefreshing}>
Refresh
</Button>
<Button variant="secondary" onClick={() => setIsSecretsModalOpen(true)} icon={<Key size={16} />}>
Expand Down