openecomp-ui/src/sdc-app/common/reducers/JSONSchemaReducer.js

/*!
 * 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 { actionTypes } from './JSONSchemaReducerConstants.js';
import Validator from 'nfvo-utils/Validator.js';
import JSONSchema from 'nfvo-utils/json/JSONSchema.js';
import JSONPointer from 'nfvo-utils/json/JSONPointer.js';
import forOwn from 'lodash/forOwn.js';
import isArray from 'lodash/isArray.js';

function flattenData(data, result, pointer = '') {
    let newPointer = pointer;
    if (typeof data === 'object' && !isArray(data)) {
        for (let i in data) {
            newPointer = newPointer ? newPointer + '/' + i : i;
            flattenData(data[i], result, newPointer);
            newPointer = pointer;
        }
    } else {
        result[newPointer] = data;
    }
}

function updateSchemaDataAndValidateReducer(
    state = {},
    action,
    questionnaireName
) {
    let genericFieldInfoClone;
    switch (action.type) {
        case actionTypes.DATA_LOADED:
            if (questionnaireName !== action.qName) {
                return { ...state };
            }
            const schema = action.payload.qschema;
            let schemaLoader = new JSONSchema();
            schemaLoader.setSchema(schema);
            schemaLoader.setSupportedValidationFunctions(
                Object.keys(Validator.globalValidationFunctions)
            );
            let { genericFieldInfo } = schemaLoader.flattenSchema();

            let data = action.payload.qdata;
            let dataMap = {};
            flattenData(data, dataMap);

            return {
                ...state,
                qdata: action.payload.qdata, // the original hierarchical data. to be used for submit and save
                qgenericFieldInfo: genericFieldInfo, // information about the fields that the view will require and reducer will need, such as validations, enum to use, etc.
                dataMap //  flattened schema data for ease of use
            };

        case actionTypes.DATA_CHANGED:
            let changedData = action.deltaData;
            if (questionnaireName !== action.qName) {
                return { ...state };
            }

            genericFieldInfoClone = { ...state.qgenericFieldInfo };
            let qDataClone = { ...state.qdata };
            let dataMapClone = { ...state.dataMap };

            forOwn(changedData, (value, key) => {
                if (state.qgenericFieldInfo[key]) {
                    let result = Validator.validate(
                        key,
                        value,
                        state.qgenericFieldInfo[key].validations,
                        state,
                        action.customValidations
                    );
                    genericFieldInfoClone[key] = {
                        ...genericFieldInfoClone[key],
                        isValid: result.isValid,
                        errorText: result.errorText
                    };
                    qDataClone = JSONPointer.setValue(
                        state.qdata,
                        '/' + key,
                        value
                    );
                    dataMapClone[key] = value;
                }
            });

            return {
                ...state,
                qdata: qDataClone,
                dataMap: dataMapClone,
                qgenericFieldInfo: genericFieldInfoClone
            };

        case actionTypes.VALIDATE_DATA:
            let specificFields = action.data;
            if (questionnaireName !== action.qName) {
                return { ...state };
            }
            genericFieldInfoClone = { ...state.qgenericFieldInfo };
            forOwn(specificFields, (value, key) => {
                let result = Validator.validate(
                    key,
                    value,
                    state.qgenericFieldInfo[key].validations,
                    state,
                    action.customValidations
                );
                genericFieldInfoClone[key] = {
                    ...genericFieldInfoClone[key],
                    isValid: result.isValid,
                    errorText: result.errorText
                };
            });
            return {
                ...state,
                formReady: null,
                qgenericFieldInfo: genericFieldInfoClone
            };

        case actionTypes.VALIDATE_FORM:
            if (questionnaireName !== action.qName) {
                return { ...state };
            }
            genericFieldInfoClone = { ...state.qgenericFieldInfo };
            let formReady = true;
            forOwn(state.qgenericFieldInfo, (value, key) => {
                let val = state.dataMap[key] ? state.dataMap[key] : '';
                let result = Validator.validate(
                    key,
                    val,
                    state.qgenericFieldInfo[key].validations,
                    state,
                    action.customValidations
                );
                genericFieldInfoClone[key] = {
                    ...genericFieldInfoClone[key],
                    isValid: result.isValid,
                    errorText: result.errorText
                };
                if (!result.isValid) {
                    formReady = false;
                }
            });
            return {
                ...state,
                formReady,
                qgenericFieldInfo: genericFieldInfoClone
            };

        default:
            return state;
    }
}

export function createJSONSchemaReducer(questionnaireName) {
    return (state = {}, action) => {
        return updateSchemaDataAndValidateReducer(
            state,
            action,
            questionnaireName
        );
    };
}

export function createComposedJSONSchemaReducer(
    questionnaireName,
    additionalActionsReducer
) {
    return (state = {}, action) => {
        if (
            action.type === actionTypes.VALIDATE_DATA ||
            action.type === actionTypes.VALIDATE_FORM ||
            action.type === actionTypes.DATA_CHANGED ||
            action.type === actionTypes.DATA_LOADED
        ) {
            return updateSchemaDataAndValidateReducer(
                state,
                action,
                questionnaireName
            );
        } else {
            return additionalActionsReducer(state, action);
        }
    };
}