const fastify = require('fastify')({ logger: true });
const path = require('path');
const { spawn } = require('child_process');
const fs = require('fs');
import { initHeadless } from "./src/shared/headless";

const { initDatabase } = require('./src/shared/database');
const { loadExtensions } = require('./src/shared/extensions');

const viewsRoutes = require('./src/views/views.routes');
const animeRoutes = require('./src/api/anime/anime.routes');
const booksRoutes = require('./src/api/books/books.routes');
const proxyRoutes = require('./src/api/proxy/proxy.routes');
const extensionsRoutes = require('./src/api/extensions/extensions.routes');
const galleryRoutes = require('./src/api/gallery/gallery.routes');

fastify.register(require('@fastify/static'), {
    root: path.join(__dirname, 'public'),
    prefix: '/public/',
    decorateReply: false
});

fastify.register(require('@fastify/static'), {
    root: path.join(__dirname, 'views'),
    prefix: '/views/',
    decorateReply: false
});

fastify.register(require('@fastify/static'), {
    root: path.join(__dirname, 'src', 'scripts'),
    prefix: '/src/scripts/',
    decorateReply: false
});

fastify.register(viewsRoutes);
fastify.register(animeRoutes, { prefix: '/api' });
fastify.register(booksRoutes, { prefix: '/api' });
fastify.register(proxyRoutes, { prefix: '/api' });
fastify.register(extensionsRoutes, { prefix: '/api' });
fastify.register(galleryRoutes, { prefix: '/api' });

function startCppScraper() {
    const exePath = path.join(
        __dirname,
        'src',
        'metadata',
        process.platform === 'win32' ? 'anilist.exe' : 'anilist'
    );
    const dllPath = path.join(__dirname, 'src', 'metadata', 'binaries');

    if (!fs.existsSync(exePath)) {
        console.error(`❌ C++ Error: Could not find executable at: ${exePath}`);
        console.error("   Did you compile it? (g++ src/metadata/anilist.cpp -o src/metadata/anilist.exe ...)");
        return;
    }

    const env = { ...process.env };
    env.PATH = `${dllPath};${env.PATH}`;

    console.log("⚡ Starting WaifuBoard Scraper Engine (C++)...");

    const scraper = spawn(exePath, [], {
        stdio: 'inherit',
        cwd: __dirname,
        env: env
    });

    scraper.on('error', (err) => {
        console.error('❌ Failed to spawn C++ process:', err);
    });

    scraper.on('close', (code) => {
        console.log(`✅ Scraper process finished with code ${code}`);
    });
}

const start = async () => {
    try {
        initDatabase("anilist");
        initDatabase("favorites");
        initDatabase("cache");
        await loadExtensions();

        await fastify.listen({ port: 3000, host: '0.0.0.0' });
        console.log(`Server running at http://localhost:3000`);

        startCppScraper();

        await initHeadless();

    } catch (err) {
        fastify.log.error(err);
        process.exit(1);
    }
};

start();