const express = require('express');
const router = express.Router();
const { isAuthenticated } = require('../middleware/auth');
const Ticket = require('../models/Ticket');
const Department = require('../models/Department');

router.get('/dashboard', isAuthenticated, async (req, res) => {
    try {
        const tickets = await Ticket.findByUser(req.session.user.company_id, req.session.user.id);
        res.render('client/dashboard', { tickets });
    } catch (error) {
        console.error(error);
        req.flash('error_msg', 'Error al cargar tickets');
        res.redirect('/');
    }
});

router.get('/new-ticket', isAuthenticated, async (req, res) => {
    try {
        const departments = await Department.findAll(req.session.user.company_id);
        res.render('client/new-ticket', { departments });
    } catch (error) {
        console.error(error);
        req.flash('error_msg', 'Error al cargar formulario');
        res.redirect('/client/dashboard');
    }
});

router.post('/new-ticket', isAuthenticated, async (req, res) => {
    const { department_id, asunto, mensaje, prioridad } = req.body;
    if (!asunto || !mensaje) {
        req.flash('error_msg', 'Asunto y mensaje son obligatorios');
        return res.redirect('/client/new-ticket');
    }
    try {
        await Ticket.create(req.session.user.company_id, req.session.user.id, department_id || null, asunto, mensaje, prioridad || 'media');
        req.flash('success_msg', 'Ticket creado exitosamente');
        res.redirect('/client/dashboard');
    } catch (error) {
        console.error(error);
        req.flash('error_msg', 'Error al crear ticket');
        res.redirect('/client/new-ticket');
    }
});

router.get('/ticket/:id', isAuthenticated, async (req, res) => {
    try {
        const ticket = await Ticket.findById(req.params.id);
        if (!ticket) {
            req.flash('error_msg', 'Ticket no encontrado');
            return res.redirect('/client/dashboard');
        }
        if (ticket.company_id !== req.session.user.company_id) {
            req.flash('error_msg', 'Acceso denegado');
            return res.redirect('/client/dashboard');
        }
        if (ticket.user_id !== req.session.user.id && req.session.user.rol === 'client') {
            req.flash('error_msg', 'Acceso denegado');
            return res.redirect('/client/dashboard');
        }
        const respuestas = await Ticket.getResponses(req.params.id);
        res.render('client/view-ticket', { ticket, respuestas });
    } catch (error) {
        console.error(error);
        req.flash('error_msg', 'Error al cargar ticket');
        res.redirect('/client/dashboard');
    }
});

router.post('/ticket/:id/respond', isAuthenticated, async (req, res) => {
    const { mensaje } = req.body;
    if (!mensaje) {
        req.flash('error_msg', 'El mensaje es obligatorio');
        return res.redirect(`/client/ticket/${req.params.id}`);
    }
    try {
        await Ticket.addResponse(req.params.id, req.session.user.id, mensaje);
        req.flash('success_msg', 'Respuesta enviada');
        res.redirect(`/client/ticket/${req.params.id}`);
    } catch (error) {
        console.error(error);
        req.flash('error_msg', 'Error al enviar respuesta');
        res.redirect(`/client/ticket/${req.params.id}`);
    }
});

router.post('/ticket/:id/close', isAuthenticated, async (req, res) => {
    try {
        const ticket = await Ticket.findById(req.params.id);
        if (ticket && ticket.company_id !== req.session.user.company_id) {
            req.flash('error_msg', 'Acceso denegado');
            return res.redirect('/client/dashboard');
        }
        await Ticket.update(req.params.id, { status: 'cerrado' });
        req.flash('success_msg', 'Ticket cerrado');
        res.redirect(`/client/ticket/${req.params.id}`);
    } catch (error) {
        console.error(error);
        req.flash('error_msg', 'Error al cerrar ticket');
        res.redirect(`/client/ticket/${req.params.id}`);
    }
});

module.exports = router;