Feature/prompt versioning

README.md

@@ -1,43 +1,57 @@
-# 🗒️ closedNote
+# closedNote
 
-> *"Because even ChatGPT forgets sometimes..."*
+> **Prompts are living documents. closedNote is the only prompt manager that remembers how they evolved.**
 
-### 👉 [closednote.vercel.app](https://closednote.vercel.app) — try it live
+[![Live](https://img.shields.io/badge/live-closednote.vercel.app-black?style=flat-square)](https://closednote.vercel.app)
+[![Next.js](https://img.shields.io/badge/Next.js-14-black?style=flat-square&logo=next.js)](https://nextjs.org)
+[![TypeScript](https://img.shields.io/badge/TypeScript-5.5-3178C6?style=flat-square&logo=typescript&logoColor=white)](https://www.typescriptlang.org)
+[![Supabase](https://img.shields.io/badge/Supabase-PostgreSQL-3ECF8E?style=flat-square&logo=supabase&logoColor=white)](https://supabase.com)
+[![License: MIT](https://img.shields.io/badge/license-MIT-green?style=flat-square)](LICENSE)
+[![Deployed on Vercel](https://img.shields.io/badge/deployed-Vercel-black?style=flat-square&logo=vercel)](https://vercel.com)
 
 ---
 
-## 👋 What is closedNote?
+## Explanation
 
-A web app for saving, organizing, and re-using your best AI prompts — built for students, teachers, engineers, and anyone tired of retyping the same thing twice.
+PromptBase stores prompts. Notion organizes them. FlowGPT shares them. None of them remember how they got there.
 
----
+In real life, prompts evolve. You tweak your "code review prompt" three times, and by the fourth iteration you've forgotten what made version 2 actually work. There is no tool aimed at everyday users that tracks how your prompts change over time — until now.
+
+closedNote is built on one thesis: **a prompt is not a sticky note. It's a document with a history.**
 
-## 💡 The Story
+Beyond versioning, closedNote adds structure: organize into collections, chain into multi-step workflows, refine with AI, and import from any image via OCR — all private by default.
+
+---
 
-I got tired of re-engineering my "perfect ChatGPT prompts" every time I needed a particular kind of answer. Then my mum started doing the same thing (don't ask how she got into it 😭). Then my grandma. Then my classmates.
+## Version History — Git for Your Prompts
 
-Meanwhile, prompt engineers were dropping crazy tips on X (Twitter) and Stack Overflow, but I had nowhere to store them neatly.
+Every time you save an edit, closedNote snapshots the version. Jump back to any point in time, see exactly what changed line by line, and restore with one click — without overwriting your history.
 
-So, I built one. That's what closedNote is all about — a small home to make prompt saving easier for everyone. 🙂
+![Version History](./screenshots/versioning01.png)
 
-Completely open source, open to contributions, and continuously improving.
+- Full version timeline on every prompt
+- Visual diff — additions in green, removals in red
+- Restore any version without losing the history chain
+- Versions only created when content actually changes — no noise
 
 ---
 
-## 🧠 Features
+## All Features
 
-- 🔍 **Instant Search** — command palette (`⌘K`) across all prompts
-- 📁 **Collections** — group prompts by topic, project, or vibe
-- 🖼️ **Image to Text (OCR)** — upload screenshots → extract text → save as prompt
-- ✨ **AI Refinement** — clean up extracted text into a polished, reusable prompt
-- 💾 **One-Click Copy** — paste straight into ChatGPT, Claude, Cursor, whatever
-- 🌗 **Dark Mode** — because your eyes matter
-- 📱 **Fully Responsive** — works on mobile without crying
-- 🔒 **Private by Default** — RLS ensures your data stays yours
+- **Version History** — track every draft with a visual diff and one-click restore *(new)*
+- **Instant Search** — command palette (`⌘K`) across your entire library
+- **Collections** — group prompts by topic, project, or use case
+- **AI Refinement** — clean up rough ideas into polished, reusable prompts using your own API key
+- **OCR Import** — upload a screenshot or photo, extract the text, save it as a prompt
+- **Prompt Chains** — link prompts into multi-step workflows where each output feeds the next
+- **One-Click Copy** — paste straight into ChatGPT, Claude, Cursor, or wherever you work
+- **Private by Default** — row-level security ensures your data is never accessible to others
+- **Dark Mode** — full theme support, system-aware
+- **Fully Responsive** — works on mobile without crying
 
 ---
 
-## 🖥️ Demo
+## Demo
 
 ### Dashboard
 
@@ -53,29 +67,29 @@ Completely open source, open to contributions, and continuously improving.
 
 ![OCR Feature](./screenshots/OCR.png)
 
-### 📱 Mobile
+### Mobile
 
-|                                                   |                                                   |
-| ------------------------------------------------- | ------------------------------------------------- |
+|  |  |
+|---|---|
 | ![Mobile Screenshot 1](./screenshots/mobile1.png) | ![Mobile Screenshot 2](./screenshots/mobile2.png) |
 
 ---
 
-## ⚙️ Tech Stack
-
-**Frontend:** Next.js 14 · React 18 · TypeScript · Tailwind CSS
-
-**Backend:** Supabase (PostgreSQL + PKCE Auth + RLS) · Next.js API Routes
-
-**AI / OCR:** OpenAI GPT-4o-mini · HuggingFace Zephyr-7b · Tesseract.js (offline fallback)
+## Tech Stack
 
-**Deployment:** Vercel
+| Layer | Technology |
+|---|---|
+| Frontend | Next.js 14 (App Router) · React 18 · TypeScript 5.5 · Tailwind CSS 3.4 |
+| Backend | Supabase (PostgreSQL + PKCE Auth + Row-Level Security) · Next.js API Routes |
+| AI / OCR | OpenAI GPT-4o-mini · HuggingFace Zephyr-7b · Tesseract.js (offline fallback) |
+| Diff Engine | Google diff-match-patch |
+| Deployment | Vercel |
 
-Users without API keys still get full prompt management + offline OCR. AI features unlock when they add a key in Settings.
+Users without API keys get full prompt management + offline OCR. AI features unlock when they add their own key in Settings.
 
 ---
 
-## 🧪 Tests
+## Tests
 
 ![Test Results](./screenshots/test.png)
 
@@ -87,14 +101,24 @@ npm test
 
 ---
 
-## ⚡ Run Locally
+## The Story
+
+I got tired of re-engineering my "perfect ChatGPT prompts" every time I needed a particular kind of answer. Then my mum started doing the same thing. Then my grandma. Then my classmates.
+
+Meanwhile, prompt engineers were dropping tips on X and Stack Overflow, but nobody had a good place to store, iterate on, and *remember* them.
+
+So I built one — and added version control, because the best prompt you'll ever write is usually the fourth draft of something you thought was broken.
+
+---
+
+## Run Locally
 
 ```bash
 git clone https://github.com/aboderinsamuel/closedNote.git
 cd closedNote
 npm install
 cp .env.example .env.local
-# Fill in your Supabase keys in .env.local
+# Fill in your Supabase keys
 npm run dev
 ```
 
@@ -104,43 +128,44 @@ NEXT_PUBLIC_SUPABASE_URL=your_supabase_url
 NEXT_PUBLIC_SUPABASE_ANON_KEY=your_supabase_anon_key
 ```
 
-AI features are optional — users add their own OpenAI or HuggingFace key in Settings.
+**Supabase setup:** run the four migration files in [`/supabase/migrations`](./supabase/migrations) in order inside the Supabase SQL editor.
 
 ---
 
-## 🚀 Deploy
+## Deploy
 
 1. Fork this repo
 2. Import to [Vercel](https://vercel.com) and add the two env vars above
 3. In Supabase → Authentication → URL Configuration, add your Vercel domain to Redirect URLs
 
 ---
 
-## 🛣️ Open Issues & Roadmap
+## Contributing
 
-See the [open issues](https://github.com/aboderinsamuel/closedNote_v0.01/issues) for what's being worked on.
+Got ideas? Contributions welcome.
 
-Got ideas? Dark mode themes, AI tag suggestions, team sharing, prompt history — contributions welcome!
+1. Fork this repo
+2. Create a branch: `git checkout -b feature/your-idea`
+3. Commit and push
+4. Open a pull request
 
-1. Fork this repo 🍴
-2. Create a branch (`feature/my-new-idea`)
-3. Commit, push, and open a pull request 🚀
+See [open issues](https://github.com/aboderinsamuel/closedNote/issues) for what's being worked on.
 
 ---
 
-## 👨🏽‍🎓 About
+## Built by
 
-Built by [**Samuel Aboderin**](https://github.com/aboderinsamuel),
-Computer Engineering student at **UNILAG 🇳🇬**
+**Samuel Aboderin** — Computer Engineering, UNILAG 🇳🇬
 
-[LinkedIn](https://www.linkedin.com/in/samuelaboderin) · [GitHub](https://github.com/aboderinsamuel)
+[![GitHub](https://img.shields.io/badge/GitHub-aboderinsamuel-black?style=flat-square&logo=github)](https://github.com/aboderinsamuel)
+[![LinkedIn](https://img.shields.io/badge/LinkedIn-samuelaboderin-0A66C2?style=flat-square&logo=linkedin&logoColor=white)](https://www.linkedin.com/in/samuelaboderin)
 
 ---
 
-## 🧾 License
+## License
 
-MIT — use it, remix it, improve it. Just don't lock it behind a paywall. 🙏🏽
+MIT — use it, remix it, improve it.
 
 ---
 
-*closedNote — because your prompts deserve better than browser history.* ✨
+*closedNote — because your prompts deserve better than browser history.*

__tests__/components/PromptForm.test.tsx

@@ -56,7 +56,7 @@ describe("PromptForm – rendering", () => {
   it("renders all form fields", () => {
     renderWithAuth();
     expect(screen.getByPlaceholderText("Give your prompt a name")).toBeInTheDocument();
-    expect(screen.getByPlaceholderText("Enter your prompt here...")).toBeInTheDocument();
+    expect(screen.getByPlaceholderText("Paste or type your prompt here...")).toBeInTheDocument();
     expect(screen.getByPlaceholderText("e.g. coding")).toBeInTheDocument();
     expect(screen.getByRole("button", { name: /save prompt/i })).toBeInTheDocument();
   });
@@ -72,7 +72,7 @@ describe("PromptForm – unauthenticated behavior", () => {
   it("redirects to /login on submit when user is not authenticated", async () => {
     renderWithAuth(null);
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Test Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Some content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Some content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     expect(mockPush).toHaveBeenCalledWith("/login");
@@ -90,7 +90,7 @@ describe("PromptForm – authenticated submission", () => {
   it("calls addOptimistic and navigates home on valid submit", async () => {
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "My Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Prompt content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Prompt content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     expect(mockAddOptimistic).toHaveBeenCalledWith(
@@ -102,7 +102,7 @@ describe("PromptForm – authenticated submission", () => {
   it("defaults collection to 'uncategorized' when left blank", async () => {
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     expect(mockAddOptimistic).toHaveBeenCalledWith(
@@ -113,7 +113,7 @@ describe("PromptForm – authenticated submission", () => {
   it("uses the entered collection name when provided", async () => {
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Content");
     await userEvent.type(screen.getByPlaceholderText("e.g. coding"), "engineering");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
@@ -125,7 +125,7 @@ describe("PromptForm – authenticated submission", () => {
   it("calls savePrompt asynchronously after optimistic update", async () => {
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     await waitFor(() => {
@@ -138,7 +138,7 @@ describe("PromptForm – authenticated submission", () => {
   it("calls refresh after savePrompt resolves", async () => {
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     await waitFor(() => expect(mockRefresh).toHaveBeenCalled());
@@ -150,7 +150,7 @@ describe("PromptForm – authenticated submission", () => {
     jest.spyOn(console, "error").mockImplementation(() => {});
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     await waitFor(() => expect(mockRefresh).toHaveBeenCalled());
@@ -159,7 +159,7 @@ describe("PromptForm – authenticated submission", () => {
   it("generated prompt has a non-empty id and ISO timestamp", async () => {
     renderWithAuth();
     await userEvent.type(screen.getByPlaceholderText("Give your prompt a name"), "Prompt");
-    await userEvent.type(screen.getByPlaceholderText("Enter your prompt here..."), "Content");
+    await userEvent.type(screen.getByPlaceholderText("Paste or type your prompt here..."), "Content");
     await userEvent.click(screen.getByRole("button", { name: /save prompt/i }));
 
     const optimisticArg = mockAddOptimistic.mock.calls[0][0];

app/api/prompts/[id]/versions/route.ts

@@ -0,0 +1,44 @@
+import { NextRequest, NextResponse } from "next/server";
+import { createClient } from "@supabase/supabase-js";
+
+export async function GET(
+  req: NextRequest,
+  { params }: { params: { id: string } }
+) {
+  const authHeader = req.headers.get("authorization");
+  const token = authHeader?.startsWith("Bearer ") ? authHeader.slice(7).trim() : null;
+
+  if (!token) {
+    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
+  }
+
+  const url = process.env.NEXT_PUBLIC_SUPABASE_URL ?? "";
+  const key = process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY ?? "";
+
+  // Pass the user's JWT so RLS can resolve auth.uid()
+  const supabase = createClient(url, key, {
+    auth: { persistSession: false, autoRefreshToken: false },
+    global: { headers: { Authorization: `Bearer ${token}` } },
+  });
+
+  const { data, error } = await supabase
+    .from("prompt_versions")
+    .select("*")
+    .eq("prompt_id", params.id)
+    .order("version_number", { ascending: false });
+
+  if (error) {
+    return NextResponse.json({ error: error.message }, { status: 500 });
+  }
+
+  const versions = (data ?? []).map((v) => ({
+    id: v.id,
+    promptId: v.prompt_id,
+    title: v.title,
+    content: v.content,
+    versionNumber: v.version_number,
+    createdAt: v.created_at,
+  }));
+
+  return NextResponse.json(versions);
+}