import logging

from odoo import http
from odoo.http import request

from .base import EncoachMixin

_logger = logging.getLogger(__name__)


class UsersController(EncoachMixin, http.Controller):

    # ---------------------------------------------------------- current user
    @http.route('/api/user', type='http', auth='public', methods=['GET', 'OPTIONS'], csrf=False, cors='*')
    def get_current_user(self, **kwargs):
        try:
            user = self._authenticate()
            if not user:
                return self._error_response('Unauthorized', 401)
            return self._json_response(self._serialize(user))
        except Exception:
            _logger.exception("Get current user error")
            return self._error_response('Internal server error', 500)

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

            body = self._get_json_body()
            vals = {}
            field_map = {
                'name': 'name',
                'phone': 'phone',
                'nativeLanguage': 'encoach_native_language',
                'country': 'encoach_country',
                'learningGoal': 'encoach_learning_goal',
                'image': 'encoach_image_url',
            }
            for api_field, odoo_field in field_map.items():
                if api_field in body:
                    vals[odoo_field] = body[api_field]

            if 'password' in body and body['password']:
                vals['password'] = body['password']

            if vals:
                user.sudo().write(vals)

            updated = request.env['res.users'].sudo().browse(user.id)
            return self._json_response(self._serialize(updated))
        except Exception:
            _logger.exception("Update user error")
            return self._error_response('Internal server error', 500)

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

            offset, limit, page = self._paginate_params(kwargs)
            domain = []

            search = kwargs.get('search', '').strip()
            if search:
                domain.append('|')
                domain.append(('name', 'ilike', search))
                domain.append(('login', 'ilike', search))

            user_type = kwargs.get('type')
            if user_type:
                domain.append(('encoach_type', '=', user_type))

            entity_id = kwargs.get('entityID')
            if entity_id:
                domain.append(('entity_rel_ids.entity_id', '=', int(entity_id)))

            Users = request.env['res.users'].sudo()
            total = Users.search_count(domain)
            records = Users.search(domain, offset=offset, limit=limit, order='name asc')

            return self._json_response({
                'users': [self._serialize(u) for u in records],
                'total': total,
                'page': page,
                'limit': limit,
            })
        except Exception:
            _logger.exception("List users error")
            return self._error_response('Internal server error', 500)

    # ---------------------------------------------------------- get user by id
    @http.route('/api/users/<int:user_id>', type='http', auth='public', methods=['GET', 'OPTIONS'], csrf=False, cors='*')
    def get_user(self, user_id, **kwargs):
        try:
            auth_user = self._authenticate()
            if not auth_user:
                return self._error_response('Unauthorized', 401)

            target = request.env['res.users'].sudo().browse(user_id)
            if not target.exists():
                return self._error_response('User not found', 404)

            return self._json_response(self._serialize(target))
        except Exception:
            _logger.exception("Get user error")
            return self._error_response('Internal server error', 500)

    # --------------------------------------------------- user controller action
    @http.route('/api/users/controller', type='http', auth='public', methods=['POST', 'OPTIONS'], csrf=False, cors='*')
    def user_controller(self, **kwargs):
        """Handle user controller actions such as transferring users between groups."""
        try:
            user = self._authenticate()
            if not user:
                return self._error_response('Unauthorized', 401)

            body = self._get_json_body()
            action = body.get('action')
            if not action:
                return self._error_response('Action is required', 400)

            Group = request.env['encoach.group'].sudo()

            if action == 'transfer':
                user_ids = body.get('userIds', [])
                from_group_id = body.get('fromGroupId')
                to_group_id = body.get('toGroupId')
                if not user_ids or not to_group_id:
                    return self._error_response('userIds and toGroupId are required', 400)

                if from_group_id:
                    from_group = Group.browse(int(from_group_id))
                    if from_group.exists():
                        from_group.write({
                            'participant_ids': [(3, int(uid)) for uid in user_ids],
                        })

                to_group = Group.browse(int(to_group_id))
                if not to_group.exists():
                    return self._error_response('Target group not found', 404)
                to_group.write({
                    'participant_ids': [(4, int(uid)) for uid in user_ids],
                })
                return self._json_response({'ok': True})

            if action == 'remove':
                user_ids = body.get('userIds', [])
                group_id = body.get('groupId')
                if not user_ids or not group_id:
                    return self._error_response('userIds and groupId are required', 400)
                group = Group.browse(int(group_id))
                if group.exists():
                    group.write({
                        'participant_ids': [(3, int(uid)) for uid in user_ids],
                    })
                return self._json_response({'ok': True})

            return self._error_response(f'Unknown action: {action}', 400)
        except Exception:
            _logger.exception("User controller error")
            return self._error_response('Internal server error', 500)

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

            balance = getattr(user, 'encoach_balance', 0)
            return self._json_response({'balance': balance})
        except Exception:
            _logger.exception("User balance error")
            return self._error_response('Internal server error', 500)