verify

verify.ts

type result = {
    success: boolean;
    errors: string[];
    pull_high: number;
    pull_low: number;
    term_mark: number;
    term_length: number;
};

const verify = (high: number, low: number, term_mark: number, term_length: number): result => {

    let returnValue: result = {
        success: true,
        errors: [],
        pull_high: high,
        pull_low: low,
        term_mark: term_mark,
        term_length: term_length
    };

    if (term_mark >= high) {
        returnValue.success = false;
        returnValue.errors.push('metermark higher or equal to pull high');
    }

    if (term_mark <= low) {
        returnValue.success = false;
        returnValue.errors.push('metermark lower or equal to pull low');
    }

    if (Math.abs(term_mark - high) < Math.abs(term_mark - low)) {
        
        // is term high mark
        if (term_mark + term_length > high) {
            returnValue.success = false;
            returnValue.errors.push('metermark is higher then high pulling');
        }
    
    } else {

        // make sure its not equal first
        if (Math.abs(term_mark - high) === Math.abs(term_mark - low)) {
            if (term_mark - term_length < low || term_mark + term_length > high) {
                returnValue.success = false;
                returnValue.errors.push('metermark is higher/lower then pulling');
            }
        } else {

            // is term low mark
            if (term_mark - term_length < low) {
                returnValue.success = false;
                returnValue.errors.push('metermark is lower then low pulling');
            }
        }
    }

    return returnValue;
}






console.log(verify(20, 10, 15, 6))