条件节点

wujingjing

2024-12-11 3229f6a34f4982d1a551d86e68d313482e33f701

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import { HandleType } from '@vue-flow/core';
import { v4 as uuid } from 'uuid';
import { VueFlowConstant } from './VueFlowConstant';
import { CompareOperation, ConditionOperator, NodeType, VarType, nodeTypeMap } from './vueFlowEnum';
import { get } from 'lodash';
 
export class VueFlowHelper {
    static genId() {
        return uuid().slice(0, 8);
    }
 
    static genGeometryId(){
        return uuid().slice(0, 12);
    }
 
    static getDefaultData = (type: NodeType) => {
        let data: any = {
            title: nodeTypeMap[type],
        };
        switch (type) {
            case NodeType.Start:
                data[VueFlowConstant.GROUP_PARAMS_KEY] = [
                    {
                        [VueFlowConstant.PARAMS_KEY]: [
                            {
                                key: 'var_list',
                                label: '',
                                type: 'var_list',
                                value: [],
                            },
                        ],
                    },
                ];
                break;
            case NodeType.Condition:
                data[VueFlowConstant.GROUP_PARAMS_KEY] = [
                    {
                        [VueFlowConstant.PARAMS_KEY]: [
                            {
                                key: 'condition',
                                label: '',
                                type: 'condition',
                                value: [ConditionHelper.getDefaultConditionGroup()],
                            },
                        ],
                    },
                ];
                break;
            default:
                break;
        }
        return data;
    };
 
    static getHandleId = (node: any, handleType: HandleType, order?: number) => {
        const orderSuffix = order == undefined ? '' : `__${order + ''}`;
        return `${node.id}__handle-${handleType}${orderSuffix}`;
    };
 
    static getFieldValue = (data, key, index = 0) => {
        let varList = [];
        const group = data?.[VueFlowConstant.GROUP_PARAMS_KEY];
        if (group && group.length > 0) {
            if (index !== null) {
                const val = group?.[index]?.[VueFlowConstant.PARAMS_KEY]?.find((item) => item.key === key)?.value;
                if (val) {
                    varList.push(val);
                }
            } else {
                for (const item of group) {
                    if (item[VueFlowConstant.PARAMS_KEY].key === key) {
                        varList.push(item[VueFlowConstant.PARAMS_KEY].value);
                    }
                }
            }
        }
        if (varList.length === 0) {
            return null;
        } else if (varList.length === 1) {
            return varList[0];
        } else {
            return varList;
        }
    };
}
 
export class StartNodeHelper {
    // static getDefaultData = () => {
    //     return {
    //         title: nodeTypeMap[NodeType.Start],
    //     };
    // };
 
    static getVarList = (data) => {
        const varList = data[VueFlowConstant.GROUP_PARAMS_KEY][0][VueFlowConstant.PARAMS_KEY].find(
            (item) => item.key === 'condition'
        ).value;
        return varList;
    };
}
 
export class ConditionHelper {
    static getConditionItem = (
        left?: {
            var: string;
            label: string;
        },
        right?: {
            type: VarType;
            value: string;
            label: string;
        },
        operation?: CompareOperation
    ) => {
        return {
            id: VueFlowHelper.genId(),
            left_var: left?.var ?? '',
            left_label: left?.label ?? '',
            comparison_operation: operation ?? '',
            right_value_type: right?.type ?? VarType.Input,
            right_value: right?.value ?? '',
            right_label: right?.label ?? '',
        };
    };
 
    static getDefaultConditionGroup = () => {
        return {
            id: VueFlowHelper.genId(),
            operator: ConditionOperator.And,
            conditions: [],
        };
    };
}