from odoo import models, fields, api
import requests
import logging

_logger = logging.getLogger(__name__)


class WhatsAppMessage(models.Model):
    _name = 'whatsapp.message'
    _description = 'WhatsApp Message'
    _order = 'create_date desc'

    external_id = fields.Char(string='ID Externo', index=True)
    conversation_id = fields.Many2one(
        'whatsapp.conversation',
        string='Conversación',
        required=True,
        ondelete='cascade',
    )
    direction = fields.Selection([
        ('inbound', 'Entrante'),
        ('outbound', 'Saliente'),
    ], string='Dirección', required=True)
    message_type = fields.Selection([
        ('text', 'Texto'),
        ('image', 'Imagen'),
        ('audio', 'Audio'),
        ('video', 'Video'),
        ('document', 'Documento'),
        ('location', 'Ubicación'),
        ('contact', 'Contacto'),
        ('sticker', 'Sticker'),
    ], string='Tipo', default='text')
    content = fields.Text(string='Contenido')
    media_url = fields.Char(string='URL Media')
    status = fields.Selection([
        ('pending', 'Pendiente'),
        ('sent', 'Enviado'),
        ('delivered', 'Entregado'),
        ('read', 'Leído'),
        ('failed', 'Fallido'),
    ], string='Estado', default='pending')
    is_read = fields.Boolean(string='Leído', default=False)
    sent_by_id = fields.Many2one(
        'res.users',
        string='Enviado por',
    )
    error_message = fields.Text(string='Error')

    @api.model
    def create(self, vals):
        message = super().create(vals)
        if message.conversation_id:
            message.conversation_id.write({
                'last_message_at': fields.Datetime.now(),
            })
        return message

    def action_resend(self):
        """Resend failed message"""
        self.ensure_one()
        if self.status != 'failed':
            return

        self._send_to_whatsapp_central()

    def _send_to_whatsapp_central(self):
        """Send message via WhatsApp Central API"""
        self.ensure_one()
        account = self.conversation_id.account_id

        try:
            response = requests.post(
                f'{account.api_url}/api/whatsapp/conversations/{self.conversation_id.external_id}/messages',
                headers=account._get_headers(),
                json={
                    'type': self.message_type,
                    'content': self.content,
                    'media_url': self.media_url,
                },
                timeout=30,
            )

            if response.status_code == 200:
                data = response.json()
                self.write({
                    'external_id': data.get('id'),
                    'status': 'sent',
                    'error_message': False,
                })
            else:
                self.write({
                    'status': 'failed',
                    'error_message': response.text,
                })

        except Exception as e:
            _logger.error(f'Error sending WhatsApp message: {e}')
            self.write({
                'status': 'failed',
                'error_message': str(e),
            })

    @api.model
    def send_message(self, conversation_id, content, message_type='text', media_url=None):
        """Helper to send a new message"""
        message = self.create({
            'conversation_id': conversation_id,
            'direction': 'outbound',
            'message_type': message_type,
            'content': content,
            'media_url': media_url,
            'sent_by_id': self.env.user.id,
        })
        message._send_to_whatsapp_central()
        return message