'use strict';

/**
 * Example: Weather lookup
 *
 * Demonstrates basic tool-calling with llmorbiter.
 * The LLM is given a weather tool and asked about the weather in a city.
 *
 * Usage:
 *   OPENROUTER_API_KEY=sk-or-... node examples/weather.js
 *   node examples/weather.js --key sk-or-... --city Tokyo
 */

import path from 'path';
import { fileURLToPath } from 'url';
import dotenv from 'dotenv';

import { LLMOrbiter, OpenRouterProvider } from '../src/index.js';
import { weatherTool } from './tools/weather.js';

const __dirname = path.dirname(fileURLToPath(import.meta.url));
dotenv.config({ path: path.resolve(__dirname, '.env'), quiet: true });

const args = process.argv.slice(2);
function getArg(flag) {
    const idx = args.indexOf(flag);
    return idx !== -1 && args[idx + 1] ? args[idx + 1] : null;
}

const apiKey = getArg('--key') || process.env.OPENROUTER_API_KEY;
const model = getArg('--model') || 'deepseek/deepseek-v4-flash-0731';
const city = getArg('--city') || 'Berlin';

if (!apiKey) {
    console.error('Error: Missing API key. Set OPENROUTER_API_KEY in examples/.env or pass --key <api-key>');
    process.exit(1);
}

async function main() {
    const provider = new OpenRouterProvider({ apiKey });

    const orbiter = new LLMOrbiter(provider, {
        onLLMCall: (call) => console.log(`🤖 LLM call: model="${call.model}" tools=${call.toolCount} promptSize=${call.promptSize} messages=${call.messages}`),
        onStatus: (status) => console.log(`⚡ ${status}`),
        onToolCall: (call) => console.log(`🔧 Tool called: ${call.name}(${JSON.stringify(call.args)})`),
        onToolError: (err) => console.log(`❌ Tool error:`, err.error),
        onToolResult: (res) => console.log(`📦 Tool result:`, res.result),
        onUsage: (usage) => console.log(`📊 LLM call usage:`, usage),
    });

    const result = await orbiter.run({
        prompt: `What's the weather like in ${city}?`,
        model,
        tools: [weatherTool],
    });

    console.log('\n💬 Response:', result.content);
}

main().catch(console.error);