// First, init config.
import { config, configPath, loadConfig } from "@/src/services/configService";
import fs from "fs";
try {
    loadConfig();
} catch (e) {
    if (fs.existsSync("config.json")) {
        console.log("Failed to load " + configPath + ": " + (e as Error).message);
    } else {
        console.log("Failed to load " + configPath + ". You can copy config.json.example to create your config file.");
    }
    process.exit(1);
}

// Now we can init the logger with the settings provided in the config.
import { logger } from "@/src/utils/logger";
logger.info("Starting up...");

// Proceed with normal startup: bring up config watcher service, validate config, connect to MongoDB, and finally start listening for HTTP.
import mongoose from "mongoose";
import { JSONStringify } from "json-with-bigint";
import { startWebServer } from "./services/webService";

import { syncConfigWithDatabase, validateConfig } from "@/src/services/configWatcherService";
import { updateWorldStateCollections } from "./services/worldStateService";
import { pluginManager } from "@/src/managers/pluginManager";

// Patch JSON.stringify to work flawlessly with Bigints.
JSON.stringify = JSONStringify;

validateConfig();

// Handle graceful shutdown
process.on('SIGINT', async () => {
    logger.info('Received SIGINT, starting graceful shutdown...');
    await pluginManager.cleanup();
    process.exit(0);
});

process.on('SIGTERM', async () => {
    logger.info('Received SIGTERM, starting graceful shutdown...');
    await pluginManager.cleanup();
    process.exit(0);
});

mongoose
    .connect(config.mongodbUrl)
    .then(async () => {
        logger.info("Connected to MongoDB");
        syncConfigWithDatabase();

        // Initialize plugins before starting the web server
        logger.info("Loading plugins...");
        await pluginManager.loadPlugins();

        startWebServer();

        void updateWorldStateCollections();
        setInterval(() => {
            void updateWorldStateCollections();
        }, 60_000);
    })
    .catch(error => {
        if (error instanceof Error) {
            logger.error(`Error connecting to MongoDB server: ${error.message}`);
        }
        process.exit(1);
    });