/*!
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 *
 * 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.
 */
import RestAPIUtil from 'nfvo-utils/RestAPIUtil.js';
import Configuration from 'sdc-app/config/Configuration.js';
import {actionTypes as entitlementPoolsActionTypes } from './EntitlementPoolsConstants.js';
import LicenseModelActionHelper from 'sdc-app/onboarding/licenseModel/LicenseModelActionHelper.js';
import {actionTypes as limitEditorActions} from 'sdc-app/onboarding/licenseModel/limits/LimitEditorConstants.js';
import getValue from 'nfvo-utils/getValue.js';

function baseUrl(licenseModelId, version) {
	const restPrefix = Configuration.get('restPrefix');
	const {id: versionId} = version;
	return `${restPrefix}/v1.0/vendor-license-models/${licenseModelId}/versions/${versionId}/entitlement-pools`;
}

function fetchEntitlementPoolsList(licenseModelId, version) {	
	return RestAPIUtil.fetch(`${baseUrl(licenseModelId, version)}`);
}

function postEntitlementPool(licenseModelId, entitlementPool, version) {	
	return RestAPIUtil.post(baseUrl(licenseModelId, version), {
		name: entitlementPool.name,
		description: entitlementPool.description,
		thresholdValue: entitlementPool.thresholdValue,
		thresholdUnits: getValue(entitlementPool.thresholdUnits),
		entitlementMetric: entitlementPool.entitlementMetric,
		increments: entitlementPool.increments,
		operationalScope: getValue(entitlementPool.operationalScope),
		time: entitlementPool.time,
		startDate: entitlementPool.startDate,
		expiryDate: entitlementPool.expiryDate
	});
}


function putEntitlementPool(licenseModelId, previousEntitlementPool, entitlementPool, version) {
	
	return RestAPIUtil.put(`${baseUrl(licenseModelId, version)}/${entitlementPool.id}`, {
		name: entitlementPool.name,
		description: entitlementPool.description,
		thresholdValue: entitlementPool.thresholdValue,
		thresholdUnits: getValue(entitlementPool.thresholdUnits),
		entitlementMetric: entitlementPool.entitlementMetric,
		increments: entitlementPool.increments,
		operationalScope: getValue(entitlementPool.operationalScope),
		time: entitlementPool.time,
		startDate: entitlementPool.startDate,
		expiryDate: entitlementPool.expiryDate
	});
}

function deleteEntitlementPool(licenseModelId, entitlementPoolId, version) {
	return RestAPIUtil.destroy(`${baseUrl(licenseModelId, version)}/${entitlementPoolId}`);
}

function fetchLimitsList(licenseModelId, entitlementPoolId, version) {	
	return RestAPIUtil.fetch(`${baseUrl(licenseModelId, version)}/${entitlementPoolId}/limits`);
}

function deleteLimit(licenseModelId, entitlementPoolId, version, limitId) {	
	return RestAPIUtil.destroy(`${baseUrl(licenseModelId, version)}/${entitlementPoolId}/limits/${limitId}`);
}

function postLimit(licenseModelId, entitlementPoolId, version, limit) {	
	return RestAPIUtil.post(`${baseUrl(licenseModelId, version)}/${entitlementPoolId}/limits`, {
		name: limit.name,
		type: limit.type,
		description: limit.description,
		metric: limit.metric,
		value: limit.value,
		unit: limit.unit,
		aggregationFunction: getValue(limit.aggregationFunction),
		time: getValue(limit.time)
	});
}

function putLimit(licenseModelId, entitlementPoolId, version, limit) {
	
	return RestAPIUtil.put(`${baseUrl(licenseModelId, version)}/${entitlementPoolId}/limits/${limit.id}`, {
		name: limit.name,
		type: limit.type,
		description: limit.description,
		metric: limit.metric,
		value: limit.value,
		unit: limit.unit,
		aggregationFunction: getValue(limit.aggregationFunction),
		time: getValue(limit.time)
	});	
}

export default {

	fetchEntitlementPoolsList(dispatch, {licenseModelId, version}) {
		return fetchEntitlementPoolsList(licenseModelId, version).then(response => dispatch({
			type: entitlementPoolsActionTypes.ENTITLEMENT_POOLS_LIST_LOADED,
			response
		}));
	},

	openEntitlementPoolsEditor(dispatch, {entitlementPool, licenseModelId, version} = {}) {
		if (licenseModelId && version) {
			this.fetchLimits(dispatch, {licenseModelId, version, entitlementPool});
		}
		dispatch({
			type: entitlementPoolsActionTypes.entitlementPoolsEditor.OPEN,
			entitlementPool
		});
	},

	deleteEntitlementPool(dispatch, {licenseModelId, entitlementPoolId, version}) {
		return deleteEntitlementPool(licenseModelId, entitlementPoolId, version).then(() => {
			dispatch({
				type: entitlementPoolsActionTypes.DELETE_ENTITLEMENT_POOL,
				entitlementPoolId
			});
		});
	},

	entitlementPoolsEditorDataChanged(dispatch, {deltaData}) {
		dispatch({
			type: entitlementPoolsActionTypes.entitlementPoolsEditor.DATA_CHANGED,
			deltaData
		});
	},

	closeEntitlementPoolsEditor(dispatch) {
		dispatch({
			type: entitlementPoolsActionTypes.entitlementPoolsEditor.CLOSE
		});
	},

	saveEntitlementPool(dispatch, {licenseModelId, previousEntitlementPool, entitlementPool, version}) {
		if (previousEntitlementPool) {
			return putEntitlementPool(licenseModelId, previousEntitlementPool, entitlementPool, version).then(() => {
				dispatch({
					type: entitlementPoolsActionTypes.EDIT_ENTITLEMENT_POOL,
					entitlementPool
				});
			});
		}
		else {
			return postEntitlementPool(licenseModelId, entitlementPool, version).then(response => {
				dispatch({
					type: entitlementPoolsActionTypes.ADD_ENTITLEMENT_POOL,
					entitlementPool: {
						...entitlementPool,
						referencingFeatureGroups: [],
						id: response.value
					}
				});
			});
		}
	},

	hideDeleteConfirm(dispatch) {
		dispatch({
			type: entitlementPoolsActionTypes.ENTITLEMENT_POOLS_DELETE_CONFIRM,
			entitlementPoolToDelete: false
		});
	},
	openDeleteEntitlementPoolConfirm(dispatch, {entitlementPool}) {
		dispatch({
			type: entitlementPoolsActionTypes.ENTITLEMENT_POOLS_DELETE_CONFIRM,
			entitlementPoolToDelete: entitlementPool
		});
	},

	switchVersion(dispatch, {licenseModelId, version}) {
		LicenseModelActionHelper.fetchLicenseModelById(dispatch, {licenseModelId, version}).then(() => {
			this.fetchEntitlementPoolsList(dispatch, {licenseModelId, version});
		});
	},


	fetchLimits(dispatch, {licenseModelId, version, entitlementPool}) {
		return fetchLimitsList(licenseModelId, entitlementPool.id, version). then (response => {
			dispatch({
				type: entitlementPoolsActionTypes.entitlementPoolsEditor.LIMITS_LIST_LOADED,
				response
			});
		});		
	},

	submitLimit(dispatch, {licenseModelId, version, entitlementPool, limit}) {	
		const propmise  =  limit.id ? putLimit(licenseModelId,entitlementPool.id, version, limit)
			: postLimit(licenseModelId,entitlementPool.id, version, limit);
		return propmise.then(() => {
			dispatch({
				type: limitEditorActions.CLOSE
			});
			this.fetchLimits(dispatch, {licenseModelId, version, entitlementPool});
		});		
	},

	deleteLimit(dispatch, {licenseModelId, version, entitlementPool, limit}) {				
		return  deleteLimit(licenseModelId,entitlementPool.id, version, limit.id).then(() => {
			this.fetchLimits(dispatch, {licenseModelId, version, entitlementPool});		
		});				
	}
};