/*
 * Copyright © 2016-2018 The Thingsboard Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
export default angular.module('thingsboard.api.ruleChain', [])
    .factory('ruleChainService', RuleChainService).name;

/*@ngInject*/
function RuleChainService($http, $q, $filter, types) {

    var ruleNodeTypes = null;

    var service = {
        getSystemRuleChains: getSystemRuleChains,
        getTenantRuleChains: getTenantRuleChains,
        getRuleChains: getRuleChains,
        getRuleChain: getRuleChain,
        saveRuleChain: saveRuleChain,
        deleteRuleChain: deleteRuleChain,
        getRuleChainMetaData: getRuleChainMetaData,
        saveRuleChainMetaData: saveRuleChainMetaData,
        getRuleNodeTypes: getRuleNodeTypes,
        getRuleNodeComponentType: getRuleNodeComponentType,
        getRuleNodeSupportedLinks: getRuleNodeSupportedLinks,
        resolveTargetRuleChains: resolveTargetRuleChains
    };

    return service;

    function getSystemRuleChains (pageLink, config) {
        var deferred = $q.defer();
        var url = '/api/system/ruleChains?limit=' + pageLink.limit;
        if (angular.isDefined(pageLink.textSearch)) {
            url += '&textSearch=' + pageLink.textSearch;
        }
        if (angular.isDefined(pageLink.idOffset)) {
            url += '&idOffset=' + pageLink.idOffset;
        }
        if (angular.isDefined(pageLink.textOffset)) {
            url += '&textOffset=' + pageLink.textOffset;
        }
        $http.get(url, config).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function getTenantRuleChains (pageLink, config) {
        var deferred = $q.defer();
        var url = '/api/tenant/ruleChains?limit=' + pageLink.limit;
        if (angular.isDefined(pageLink.textSearch)) {
            url += '&textSearch=' + pageLink.textSearch;
        }
        if (angular.isDefined(pageLink.idOffset)) {
            url += '&idOffset=' + pageLink.idOffset;
        }
        if (angular.isDefined(pageLink.textOffset)) {
            url += '&textOffset=' + pageLink.textOffset;
        }
        $http.get(url, config).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function getRuleChains (pageLink, config) {
        var deferred = $q.defer();
        var url = '/api/ruleChains?limit=' + pageLink.limit;
        if (angular.isDefined(pageLink.textSearch)) {
            url += '&textSearch=' + pageLink.textSearch;
        }
        if (angular.isDefined(pageLink.idOffset)) {
            url += '&idOffset=' + pageLink.idOffset;
        }
        if (angular.isDefined(pageLink.textOffset)) {
            url += '&textOffset=' + pageLink.textOffset;
        }
        $http.get(url, config).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function getRuleChain(ruleChainId, config) {
        var deferred = $q.defer();
        var url = '/api/ruleChain/' + ruleChainId;
        $http.get(url, config).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function saveRuleChain(ruleChain) {
        var deferred = $q.defer();
        var url = '/api/ruleChain';
        $http.post(url, ruleChain).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function deleteRuleChain(ruleChainId) {
        var deferred = $q.defer();
        var url = '/api/ruleChain/' + ruleChainId;
        $http.delete(url).then(function success() {
            deferred.resolve();
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function getRuleChainMetaData(ruleChainId, config) {
        var deferred = $q.defer();
        var url = '/api/ruleChain/' + ruleChainId + '/metadata';
        $http.get(url, config).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function saveRuleChainMetaData(ruleChainMetaData) {
        var deferred = $q.defer();
        var url = '/api/ruleChain/metadata';
        $http.post(url, ruleChainMetaData).then(function success(response) {
            deferred.resolve(response.data);
        }, function fail() {
            deferred.reject();
        });
        return deferred.promise;
    }

    function getRuleNodeSupportedLinks(nodeType) { //eslint-disable-line
        //TODO:
        var deferred = $q.defer();
        var linkLabels = [
            { name: 'Success', custom: false },
            { name: 'Fail', custom: false },
            { name: 'Custom', custom: true },
        ];
        deferred.resolve(linkLabels);
        return deferred.promise;
    }

    function getRuleNodeTypes() {
        var deferred = $q.defer();
        if (ruleNodeTypes) {
            deferred.resolve(ruleNodeTypes);
        } else {
            loadRuleNodeTypes().then(
                (nodeTypes) => {
                    ruleNodeTypes = nodeTypes;
                    ruleNodeTypes.push(
                        {
                            nodeType: types.ruleNodeType.RULE_CHAIN.value,
                            type: 'Rule chain'
                        }
                    );
                    deferred.resolve(ruleNodeTypes);
                },
                () => {
                    deferred.reject();
                }
            );
        }
        return deferred.promise;
    }

    function getRuleNodeComponentType(type) {
        var res = $filter('filter')(ruleNodeTypes, {type: type}, true);
        if (res && res.length) {
            return res[0].nodeType;
        }
        return null;
    }

    function resolveTargetRuleChains(ruleChainConnections) {
        var deferred = $q.defer();
        if (ruleChainConnections && ruleChainConnections.length) {
            var tasks = [];
            for (var i = 0; i < ruleChainConnections.length; i++) {
                tasks.push(getRuleChain(ruleChainConnections[i].targetRuleChainId.id));
            }
            $q.all(tasks).then(
                (ruleChains) => {
                    var ruleChainsMap = {};
                    for (var i = 0; i < ruleChains.length; i++) {
                        ruleChainsMap[ruleChains[i].id.id] = ruleChains[i];
                    }
                    deferred.resolve(ruleChainsMap);
                },
                () => {
                    deferred.reject();
                }
            );
        } else {
            deferred.resolve({});
        }
        return deferred.promise;
    }

    function loadRuleNodeTypes() {
        var deferred = $q.defer();
        deferred.resolve(
            [
                {
                    nodeType: types.ruleNodeType.FILTER.value,
                    type: 'Filter'
                },
                {
                    nodeType: types.ruleNodeType.FILTER.value,
                    type: 'Switch'
                },
                {
                    nodeType: types.ruleNodeType.ENRICHMENT.value,
                    type: 'Self'
                },
                {
                    nodeType: types.ruleNodeType.ENRICHMENT.value,
                    type: 'Tenant/Customer'
                },
                {
                    nodeType: types.ruleNodeType.ENRICHMENT.value,
                    type: 'Related Entity'
                },
                {
                    nodeType: types.ruleNodeType.ENRICHMENT.value,
                    type: 'Last Telemetry'
                },
                {
                    nodeType: types.ruleNodeType.TRANSFORMATION.value,
                    type: 'Modify'
                },
                {
                    nodeType: types.ruleNodeType.TRANSFORMATION.value,
                    type: 'New/Update'
                },
                {
                    nodeType: types.ruleNodeType.ACTION.value,
                    type: 'Telemetry'
                },
                {
                    nodeType: types.ruleNodeType.ACTION.value,
                    type: 'RPC call'
                },
                {
                    nodeType: types.ruleNodeType.ACTION.value,
                    type: 'Send email'
                },
                {
                    nodeType: types.ruleNodeType.ACTION.value,
                    type: 'Alarm'
                }
            ]
        );
        return deferred.promise;
    }


}