const express = require("express");
const axios = require("axios");
const cors = require("cors");
const bodyParser = require("body-parser");
require("dotenv").config();

const app = express();
const PORT = 3000;

app.use(cors());
app.use(bodyParser.json());

const GITHUB_API = "https://api.github.com";
const GITHUB_FILE_PATH = "j.json";
const OWNER = process.env.GITHUB_REPO_OWNER;
const REPO = process.env.GITHUB_REPO_NAME;
const TOKEN = process.env.GITHUB_TOKEN;

// === Fetch Notes from GitHub ===
async function getNotes() {
    const url = `${GITHUB_API}/repos/${OWNER}/${REPO}/contents/${GITHUB_FILE_PATH}`;
    try {
        const response = await axios.get(url, { headers: { Authorization: `Bearer ${TOKEN}` } });
        const fileContent = Buffer.from(response.data.content, "base64").toString();
        return JSON.parse(fileContent);
    } catch (error) {
        return [];
    }
}

// === Update Notes in GitHub ===
async function updateNotes(notes) {
    const url = `${GITHUB_API}/repos/${OWNER}/${REPO}/contents/${GITHUB_FILE_PATH}`;
    try {
        const fileData = await axios.get(url, { headers: { Authorization: `Bearer ${TOKEN}` } });
        const sha = fileData.data.sha;

        const contentEncoded = Buffer.from(JSON.stringify(notes, null, 2)).toString("base64");

        await axios.put(url, {
            message: "Update notes",
            content: contentEncoded,
            sha: sha
        }, { headers: { Authorization: `Bearer ${TOKEN}` } });

        return true;
    } catch (error) {
        return false;
    }
}

// === Get Notes API ===
app.get("/show-notes", async (req, res) => {
    const notes = await getNotes();
    res.json(notes);
});

// === Create Note API ===
app.post("/create-note", async (req, res) => {
    const { title, content, image, gameId, user } = req.body;
    const notes = await getNotes();
    
    let gameTitle = "";
    if (gameId) {
        try {
            const gameResponse = await axios.get(`https://games.roblox.com/v1/games?universeIds=${gameId}`);
            gameTitle = gameResponse.data.data[0]?.name || "Unknown Game";
        } catch (error) {
            gameTitle = "Unknown Game";
        }
    }

    const newNote = {
        id: notes.length + 1,
        user,
        title: gameTitle || title,
        content,
        image,
        approved: false
    };

    notes.push(newNote);
    const success = await updateNotes(notes);

    res.json({ success });
});

// === Approve Note API ===
app.post("/approve-note", async (req, res) => {
    const { noteId } = req.body;
    const notes = await getNotes();

    const note = notes.find(n => n.id === noteId);
    if (note) note.approved = true;

    const success = await updateNotes(notes);
    res.json({ success });
});

// === Start Server ===
app.listen(PORT, () => console.log(`Server running on port ${PORT}`));