import { division, multiply } from "../aggregation/aggregation";

export class TrUtils {
    // static DecimalsNumber:number=2;
    static IsNull(Value: any) {
        return Value === null || typeof Value === 'undefined';
    }
  
    static IsEmpty(Value: any) {
        return Value === null || typeof Value === 'undefined' || Value === '';
    }

    static IsZero(Value: any) {
        return Value === null || typeof Value === 'undefined' || Value === 0;
    }

    static IsFixedZero(Value: any) {
        return Value === null || typeof Value === 'undefined' || Value === '0.00';
    }

    static Stringify(RecordData: any) {
        if (this.IsNull(RecordData)) {
            return RecordData;
        }
        let StringifiedResult: any = JSON.parse(JSON.stringify(RecordData));
        return StringifiedResult;
    }

    static ConcatObjects(obj1: any, obj2: any) {
        // tslint:disable-next-line:forin
        for (let key in obj2) {
            obj1[key] = obj2[key];
        }
        return obj1;
    }

    static ConvertPercToVal(Discount: any, Total: any, DecimalsNumber: number = 2) {
        if (this.IsNull(Total)) {
            return null;
        } else {
            if (this.IsNull(Discount)) {
                Discount = 0;
            }
            if (this.IsNull(Total)) {
                Total = 0;
            }
            let value = this.FixedTo(division(multiply(Total, Discount), 100), DecimalsNumber);
            if (isNaN(value)) {
                value = 0;
            }
            return value;
        }
    }

    static FixedTo(value: any, DecimalsNumber: number = 2) {
        if (this.IsNull(value)) {
            value = 0;
        }
        value = Number(value);
        let Result: string = value.toFixed(DecimalsNumber);
        return Number(Result);
    }

    static FixPriceValue(Value: any, DecimalsNumber: number = 2) {
        if (this.IsNull(Value)) {
            Value = 0;
        }
        if (typeof Value === 'string') {
            Value = Number(Value);
        }
        let Result: string = Value.toFixed(DecimalsNumber);
        return Result;
    }

    static SetValueToZeroIfNull(Value: any) {
        if (this.IsNull(Value)) {
            Value = 0;
        }
        return Value;
    }

    static SetPercToStringIfNull(Value: any) {
        if (this.IsNull(Value)) {
            Value = '';
        }
        return Value;
    }

    static SetPercToTrueIfNull(Value: any) {
        if (this.IsNull(Value)) {
            Value = true;
        }
        return Value;
    }

    static CheckInvalidSelect(Value: any) {
        return Value === null || typeof Value === 'undefined' || Value === '' || Value === -1 || Value === '-1';
    }

    static isTaxable(tax: string) {
        return (tax === 'TI') ? true : false;
    }
    
}