const models = require("../models");
const db = models.db;
const redis = models.redis;
const {sequelize, Sequelize} = db;
const Intent = db.intent;

exports.getAllIntents = async (req, res) => {
    try {
        const intents = await Intent.findAll();

        return res.status(200).send(intents);
    } catch (err) {
        console.error("getIntents error:", err);

        return res.status(500).send({message: err.message || "Internal server error."});
    }
};

exports.getIntentCommand = async (req, res) => {
    try {
        const {text, device_id} = req.body;

        if (!text || !device_id) {
            return res.status(400).json({
                error: 'Missing required fields: text, device_id',
            });
        }

        console.log(`\n[FALLBACK API] Processing intent.`);

        const intents = await Intent.findAll();
        const intent = intents.find(intent => intent.description === text);

        if (intent) {
            const commandId = await redis.client.xAdd(
                'commands',
                '*',
                {
                    device_id: device_id,
                    command: intent.command,
                    processed_at: new Date().toISOString(),
                    source: 'fallback_api',
                }
            );

            console.log(`Intent matched and published to stream: ${commandId}`);

            return res.json({
                success: true,
                intent: intent.description,
                command: intent.command
            });
        } else {
            const errorId = await redis.client.xAdd(
                'commands',
                '*',
                {
                    device_id: device_id,
                    intent: 'error',
                    command: 'intent_not_found',
                    processed_at: new Date().toISOString(),
                    source: 'fallback_api'
                }
            );

            console.log(`No intent match, error published: ${errorId}`);

            return res.status(400).json({
                success: false,
                error: 'intent_not_found',
                message: `Could not understand: "${text}"`,
                stream_id: errorId,
                source: 'fallback_api',
            });
        }
    } catch (err) {
        console.error("getIntentCommand error:", err);

        return res.status(500).send({message: err.message || "Internal server error."});
    }
};