const SEVERITIES = ['WATCH', 'WARNING', 'CRITICAL'];
const NAMESPACE = '/Example/fault-';
const getRandom = {
    severity: () => SEVERITIES[Math.floor(Math.random() * 3)],
    value: () => Math.random() + Math.floor(Math.random() * 21) - 10,
    fault: (num, staticFaults) => {
        let val = getRandom.value();
        let severity = getRandom.severity();
        let time = Date.now() - num;

        if (staticFaults) {
            let severityIndex = num > 3 ? num % 3 : num;

            val = num;
            severity = SEVERITIES[severityIndex - 1];
            time = num;
        }

        return {
            type: num,
            fault: {
                acknowledged: false,
                currentValueInfo: {
                    value: val,
                    rangeCondition: severity,
                    monitoringResult: severity
                },
                id: `id-${num}`,
                name: `Example Fault ${num}`,
                namespace: NAMESPACE + num,
                seqNum: 0,
                severity: severity,
                shelved: false,
                shortDescription: '',
                triggerTime: time,
                triggerValueInfo: {
                    value: val,
                    rangeCondition: severity,
                    monitoringResult: severity
                }
            }
        };
    }
};

function shelveFault(fault, opts = {
    shelved: true,
    comment: '',
    shelveDuration: 90000
}) {
    fault.shelved = true;

    setTimeout(() => {
        fault.shelved = false;
    }, opts.shelveDuration);
}

function acknowledgeFault(fault) {
    fault.acknowledged = true;
}

function randomFaults(staticFaults, count = 5) {
    let faults = [];

    for (let x = 1, y = count + 1; x < y; x++) {
        faults.push(getRandom.fault(x, staticFaults));
    }

    return faults;
}

export default {
    randomFaults,
    shelveFault,
    acknowledgeFault
};