from flask import request
from flask_login import current_user
from flask_restful import Resource, marshal, marshal_with, reqparse
from werkzeug.exceptions import Forbidden

from controllers.console import api
from controllers.console.app.error import NoFileUploadedError
from controllers.console.datasets.error import TooManyFilesError
from controllers.console.setup import setup_required
from controllers.console.wraps import account_initialization_required, cloud_edition_billing_resource_check
from extensions.ext_redis import redis_client
from fields.annotation_fields import (
    annotation_fields,
    annotation_hit_history_fields,
)
from libs.login import login_required
from services.annotation_service import AppAnnotationService


class AnnotationReplyActionApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    @cloud_edition_billing_resource_check('annotation')
    def post(self, app_id, action):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        parser = reqparse.RequestParser()
        parser.add_argument('score_threshold', required=True, type=float, location='json')
        parser.add_argument('embedding_provider_name', required=True, type=str, location='json')
        parser.add_argument('embedding_model_name', required=True, type=str, location='json')
        args = parser.parse_args()
        if action == 'enable':
            result = AppAnnotationService.enable_app_annotation(args, app_id)
        elif action == 'disable':
            result = AppAnnotationService.disable_app_annotation(app_id)
        else:
            raise ValueError('Unsupported annotation reply action')
        return result, 200


class AppAnnotationSettingDetailApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        result = AppAnnotationService.get_app_annotation_setting_by_app_id(app_id)
        return result, 200


class AppAnnotationSettingUpdateApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    def post(self, app_id, annotation_setting_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        annotation_setting_id = str(annotation_setting_id)

        parser = reqparse.RequestParser()
        parser.add_argument('score_threshold', required=True, type=float, location='json')
        args = parser.parse_args()

        result = AppAnnotationService.update_app_annotation_setting(app_id, annotation_setting_id, args)
        return result, 200


class AnnotationReplyActionStatusApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    @cloud_edition_billing_resource_check('annotation')
    def get(self, app_id, job_id, action):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        job_id = str(job_id)
        app_annotation_job_key = '{}_app_annotation_job_{}'.format(action, str(job_id))
        cache_result = redis_client.get(app_annotation_job_key)
        if cache_result is None:
            raise ValueError("The job is not exist.")

        job_status = cache_result.decode()
        error_msg = ''
        if job_status == 'error':
            app_annotation_error_key = '{}_app_annotation_error_{}'.format(action, str(job_id))
            error_msg = redis_client.get(app_annotation_error_key).decode()

        return {
            'job_id': job_id,
            'job_status': job_status,
            'error_msg': error_msg
        }, 200


class AnnotationListApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        page = request.args.get('page', default=1, type=int)
        limit = request.args.get('limit', default=20, type=int)
        keyword = request.args.get('keyword', default=None, type=str)

        app_id = str(app_id)
        annotation_list, total = AppAnnotationService.get_annotation_list_by_app_id(app_id, page, limit, keyword)
        response = {
            'data': marshal(annotation_list, annotation_fields),
            'has_more': len(annotation_list) == limit,
            'limit': limit,
            'total': total,
            'page': page
        }
        return response, 200


class AnnotationExportApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        annotation_list = AppAnnotationService.export_annotation_list_by_app_id(app_id)
        response = {
            'data': marshal(annotation_list, annotation_fields)
        }
        return response, 200


class AnnotationCreateApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    @cloud_edition_billing_resource_check('annotation')
    @marshal_with(annotation_fields)
    def post(self, app_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        parser = reqparse.RequestParser()
        parser.add_argument('question', required=True, type=str, location='json')
        parser.add_argument('answer', required=True, type=str, location='json')
        args = parser.parse_args()
        annotation = AppAnnotationService.insert_app_annotation_directly(args, app_id)
        return annotation


class AnnotationUpdateDeleteApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    @cloud_edition_billing_resource_check('annotation')
    @marshal_with(annotation_fields)
    def post(self, app_id, annotation_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        annotation_id = str(annotation_id)
        parser = reqparse.RequestParser()
        parser.add_argument('question', required=True, type=str, location='json')
        parser.add_argument('answer', required=True, type=str, location='json')
        args = parser.parse_args()
        annotation = AppAnnotationService.update_app_annotation_directly(args, app_id, annotation_id)
        return annotation

    @setup_required
    @login_required
    @account_initialization_required
    def delete(self, app_id, annotation_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        annotation_id = str(annotation_id)
        AppAnnotationService.delete_app_annotation(app_id, annotation_id)
        return {'result': 'success'}, 200


class AnnotationBatchImportApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    @cloud_edition_billing_resource_check('annotation')
    def post(self, app_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        app_id = str(app_id)
        # get file from request
        file = request.files['file']
        # check file
        if 'file' not in request.files:
            raise NoFileUploadedError()

        if len(request.files) > 1:
            raise TooManyFilesError()
        # check file type
        if not file.filename.endswith('.csv'):
            raise ValueError("Invalid file type. Only CSV files are allowed")
        return AppAnnotationService.batch_import_app_annotations(app_id, file)


class AnnotationBatchImportStatusApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    @cloud_edition_billing_resource_check('annotation')
    def get(self, app_id, job_id):
        # The role of the current user in the ta table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        job_id = str(job_id)
        indexing_cache_key = 'app_annotation_batch_import_{}'.format(str(job_id))
        cache_result = redis_client.get(indexing_cache_key)
        if cache_result is None:
            raise ValueError("The job is not exist.")
        job_status = cache_result.decode()
        error_msg = ''
        if job_status == 'error':
            indexing_error_msg_key = 'app_annotation_batch_import_error_msg_{}'.format(str(job_id))
            error_msg = redis_client.get(indexing_error_msg_key).decode()

        return {
            'job_id': job_id,
            'job_status': job_status,
            'error_msg': error_msg
        }, 200


class AnnotationHitHistoryListApi(Resource):
    @setup_required
    @login_required
    @account_initialization_required
    def get(self, app_id, annotation_id):
        # The role of the current user in the table must be admin or owner
        if not current_user.is_admin_or_owner:
            raise Forbidden()

        page = request.args.get('page', default=1, type=int)
        limit = request.args.get('limit', default=20, type=int)
        app_id = str(app_id)
        annotation_id = str(annotation_id)
        annotation_hit_history_list, total = AppAnnotationService.get_annotation_hit_histories(app_id, annotation_id,
                                                                                               page, limit)
        response = {
            'data': marshal(annotation_hit_history_list, annotation_hit_history_fields),
            'has_more': len(annotation_hit_history_list) == limit,
            'limit': limit,
            'total': total,
            'page': page
        }
        return response


api.add_resource(AnnotationReplyActionApi, '/apps/<uuid:app_id>/annotation-reply/<string:action>')
api.add_resource(AnnotationReplyActionStatusApi,
                 '/apps/<uuid:app_id>/annotation-reply/<string:action>/status/<uuid:job_id>')
api.add_resource(AnnotationListApi, '/apps/<uuid:app_id>/annotations')
api.add_resource(AnnotationExportApi, '/apps/<uuid:app_id>/annotations/export')
api.add_resource(AnnotationUpdateDeleteApi, '/apps/<uuid:app_id>/annotations/<uuid:annotation_id>')
api.add_resource(AnnotationBatchImportApi, '/apps/<uuid:app_id>/annotations/batch-import')
api.add_resource(AnnotationBatchImportStatusApi, '/apps/<uuid:app_id>/annotations/batch-import-status/<uuid:job_id>')
api.add_resource(AnnotationHitHistoryListApi, '/apps/<uuid:app_id>/annotations/<uuid:annotation_id>/hit-histories')
api.add_resource(AppAnnotationSettingDetailApi, '/apps/<uuid:app_id>/annotation-setting')
api.add_resource(AppAnnotationSettingUpdateApi, '/apps/<uuid:app_id>/annotation-settings/<uuid:annotation_setting_id>')