TyrealGray/Qin.js

//@flow
import { CONDITION_CHECK } from './shuoCore/conditionCheckType';

export const peelPropsString = (propsString:string) => {
    return {
        peeledPropArray: propsString.split('-'),
    };
};

export const checkCondition = (
    data: Object,
    conditions: Object,
    condition: string,
    checkCallback: (Object, Object) => boolean,
): Object | null => {
    for (const expectConditionProps of conditions[condition]) {
        let matched = 0;
        let props = [];
        for (const prop in expectConditionProps) {
            const { peeledPropArray } = peelPropsString(prop);

            let value = data;
            for (let i = 0; i < peeledPropArray.length; i++) {
                value = value[peeledPropArray[i]];
            }

            if (checkCallback(expectConditionProps[prop], value)) {
                matched++;
                props.push(prop);
            }
        }
        if (matched === Object.entries(expectConditionProps).length) {
            return { props, condition };
        }
    }

    return null;
};

export const checkConditions = (
    data: Object,
    conditions: Object,
): Object | null => {

    for (const condition in conditions) {
        const trigger = checkCondition(
            data,
            conditions,
            condition,
            CONDITION_CHECK[condition],
        );

        if (trigger) {
            return trigger;
        }
    }

    return null;
};