import logging
from datetime import datetime, timedelta

import jwt as pyjwt

from odoo import http
from odoo.http import request

from .base import EncoachMixin

_logger = logging.getLogger(__name__)


class RegistrationController(EncoachMixin, http.Controller):

    @http.route('/api/register', type='http', auth='public', methods=['POST', 'OPTIONS'], csrf=False, cors='*')
    def register(self, **kwargs):
        try:
            body = self._get_json_body()
            email = body.get('email', '').strip()
            password = body.get('password', '')
            name = body.get('name', '').strip()
            user_type = body.get('type', 'student')

            if not email or not password or not name:
                return self._error_response('name, email, and password are required', 400)

            Users = request.env['res.users'].sudo()
            existing = Users.search([('login', '=', email)], limit=1)
            if existing:
                return self._error_response('A user with this email already exists', 409)

            main_company = request.env['res.company'].sudo().search([], limit=1, order='id')
            vals = {
                'name': name,
                'login': email,
                'password': password,
                'encoach_type': user_type,
                'is_verified': False,
                'company_id': main_company.id,
                'company_ids': [(6, 0, [main_company.id])],
            }

            code_str = body.get('code')
            if code_str:
                result = request.env['encoach.code'].sudo().validate_code(code_str)
                if result.get('valid'):
                    code_rec = request.env['encoach.code'].sudo().search([('code', '=', code_str)], limit=1)
                    if code_rec and code_rec.user_type:
                        vals['encoach_type'] = code_rec.user_type

            user = Users.create(vals)

            if code_str:
                code_rec = request.env['encoach.code'].sudo().search([('code', '=', code_str)], limit=1)
                if code_rec:
                    if code_rec.entity_id:
                        request.env['encoach.user.entity.rel'].sudo().create({
                            'user_id': user.id,
                            'entity_id': code_rec.entity_id.id,
                        })
                    code_rec.sudo().write({'uses': code_rec.uses + 1})

            secret = request.env['ir.config_parameter'].sudo().get_param('encoach.jwt_secret')
            token = pyjwt.encode({
                'user_id': user.id,
                'email': user.login,
                'iat': datetime.utcnow(),
                'exp': datetime.utcnow() + timedelta(hours=72),
            }, secret, algorithm='HS256')

            return self._json_response({
                'user': self._serialize(user),
                'token': token,
            }, status=201)
        except Exception:
            _logger.exception("Registration error")
            return self._error_response('Internal server error', 500)

    @http.route(
        '/api/code/<string:code>', type='http', auth='public',
        methods=['GET', 'OPTIONS'], csrf=False, cors='*',
    )
    def validate_code(self, code, **kwargs):
        try:
            result = request.env['encoach.code'].sudo().validate_code(code)
            if not result.get('valid'):
                return self._error_response(result.get('error', 'Invalid code'), 404)
            return self._json_response(result['code'])
        except Exception:
            _logger.exception("Validate code error")
            return self._error_response('Internal server error', 500)

    @http.route('/api/batch_users', type='http', auth='public', methods=['POST', 'OPTIONS'], csrf=False, cors='*')
    def batch_users(self, **kwargs):
        try:
            user = self._authenticate()
            if not user:
                return self._error_response('Unauthorized', 401)

            body = self._get_json_body()
            users_data = body.get('users', [])
            if not users_data:
                return self._error_response('users array is required', 400)

            mixin = request.env['encoach.registration.mixin'].sudo()
            result = mixin.batch_import(users_data, user.id)
            return self._json_response(result)
        except Exception:
            _logger.exception("Batch users error")
            return self._error_response('Internal server error', 500)

    @http.route('/api/make_user', type='http', auth='public', methods=['POST', 'OPTIONS'], csrf=False, cors='*')
    def make_user(self, **kwargs):
        try:
            user = self._authenticate()
            if not user:
                return self._error_response('Unauthorized', 401)

            body = self._get_json_body()
            email = body.get('email', '').strip()
            name = body.get('name', '').strip()
            password = body.get('password', '')
            if not email or not name:
                return self._error_response('name and email are required', 400)

            Users = request.env['res.users'].sudo()
            existing = Users.search([('login', '=', email)], limit=1)
            if existing:
                return self._error_response('A user with this email already exists', 409)

            import secrets
            if not password:
                password = secrets.token_urlsafe(12)

            new_user = Users.create({
                'name': name,
                'login': email,
                'password': password,
                'encoach_type': body.get('type', 'student'),
                'is_verified': body.get('isVerified', True),
            })

            result = self._serialize(new_user)
            result['tempPassword'] = password
            return self._json_response(result, status=201)
        except Exception:
            _logger.exception("Make user error")
            return self._error_response('Internal server error', 500)