'use strict';

import chalk from 'chalk';
import { input } from '@inquirer/prompts';
import { defineTool } from 'llmorbiter';
import { emitToolCall, clip } from './notify.js';

export const askExpertTool = defineTool({
    name: 'ask_an_expert',
    description:
        'Escalate to a human expert when you are genuinely stuck (a confusing or unclear problem, or ' +
        'you have tried and are still spinning). Do not use it for things you can resolve yourself. ' +
        'Question shown to user as copy-pasteable block for their expert; reply returned to you. ' +
        'Self-contained `question`; put supporting detail (errors, code, what you tried) in optional `context`.',
    parameters: {
        type: 'object',
        additionalProperties: false,
        required: ['question'],
        properties: {
            question: {
                type: 'string',
                description: 'Question for the expert. Concise & specific.',
            },
            context: {
                type: 'string',
                description:
                    'Opt supporting detail the expert needs (errors, code, what you tried).',
            },
        },
    },
    invoke: async ({ question, context = '' }) => {
        const hasContext = context && context.trim().length > 0;

        // Present the question as a single, self-contained block the user can
        // select and copy straight into a chat with their expert.
        const lines = [hasContext ? `Question: ${question}` : question];
        if (hasContext) {
            lines.push('', 'Context:', context.trim());
        }
        const message = lines.join('\n');

        console.log('');
        console.log(chalk.blue.bold('  🧑\u200d🔬 Ask an expert — copy & paste this to your expert:'));
        console.log(chalk.dim('  ┌' + '─'.repeat(60)));
        for (const line of message.split('\n')) {
            console.log(chalk.white('  │ ' + line));
        }
        console.log(chalk.dim('  └' + '─'.repeat(60)));
        console.log('');

        // Wait for the user to bring back the expert's answer.
        const answer = await input({
            message: chalk.bold.blue("Expert's answer (paste it here)"),
            prefix: chalk.blue('›'),
            theme: {
                prefix: chalk.blue('›'),
                style: { answer: chalk.white, message: chalk.bold.blue },
            },
        });

        console.log('');
        return { answer };
    },
});

/**
 * Call notification: the question being put to the expert.
 */
export function notifyCall(args = {}) {
    emitToolCall(askExpertTool.name, clip(JSON.stringify(args.question ?? '')));
}