import {Injectable} from '@angular/core';
// import {DeviceDetectorService} from 'ngx-device-detector';

export class JsonFilter {
    ExpressionId: number;
    ComplexId: number;
    ApiName: string;
    Operation: string;
    Values: string[];
    constructor() {
        this.ExpressionId = 1;
        this.ApiName = '';
        this.Operation = '';
        this.Values = [];
    }

    initFromObj(obj: JsonFilter) {
        if (obj) {
            this.ExpressionId = obj.ExpressionId;
            this.ApiName = obj.ApiName;
            this.Operation = obj.Operation;

            if (this.Values != obj.Values) {
                this.Values = [];
                if (obj.Values) {
                    obj.Values.forEach((value) => this.Values.push(value));
                }
            }
        }
    }

    Valid(): boolean {
        return this.Operation != '' && this.ApiName != '';
    }
}

export class JsonFilters {
    leftNode: string;
    rightNode: string;
    operator: string;
    ComplexId: number;

    constructor(left = '', right = '', operator = 'AND', complexId = 2) {
        this.leftNode = left;
        this.rightNode = right;
        this.operator = operator;
        this.ComplexId = complexId;
    }

    toString(): string {
        let retVal = '';
        if (this.leftNode != '' && this.rightNode === '') {
            retVal = this.leftNode;
        } else if (this.leftNode === '' && this.rightNode != '') {
            retVal = this.rightNode;
        } else if (this.leftNode != '' && this.rightNode != '') {
            retVal = '{ "ComplexId":' + this.ComplexId + ',';
            retVal += ' "Operation":"' + this.operator + '",';
            retVal += ' "LeftNode": ' + this.leftNode + ',';
            retVal += ' "RightNode": ' + this.rightNode + '}';
        }
        return retVal;
    }
}

export enum DATE_RANGE {
    None = 0,
    InTheLast = 1,
    Today = 2,
    ThisWeek = 3,
    ThisMonth = 4,
    /*Before = 5, After = 6,*/ Between = 5,
    DueIn = 6,
    On = 7,
    NotInTheLast = 8,
    NotDueIn = 9,
    IsEmpty = 10,
    IsNotEmpty = 11,
}
export enum DATE_PERIOD {
    None = 0,
    Days = 1,
    Weeks = 2,
    Months = 3,
    Years = 4,
}
export enum DATE_RANGE_VIEWTYPE {
    None = 0,
    Period = 1,
    OneCalendar = 2,
    TwoCalendars = 3,
    NoCalendars = 4,
}

@Injectable({
    providedIn: 'root',
})
export class UtilitiesService {
    constructor(
        // private deviceService: DeviceDetectorService
        ) {}

    parseDate(dateStr: string, showTime: boolean = false) {
        let retVal = null;
        if (dateStr != '') {
            retVal = new Date(dateStr);
            let dateText = dateStr.split('-');
            if (dateText.length == 3 && !showTime) {
                const year = Number(dateText[0]);
                const month = Number(dateText[1]) - 1;
                const day = Number(dateText[2]);
                retVal = new Date(year, month, day);
            }
        }
        if (retVal && isNaN(retVal.getTime())) {
            retVal = null;
        }
        return retVal;
    }

    stringifyDate(date: Date, showTime: boolean = false) {
        if (date) {
            let dateText = [];
            dateText.push(date.getFullYear(), '-', date.getMonth() + 1, '-', date.getDate());

            if (showTime) {
                dateText.push(
                    'T',
                    (date.getHours() < 10 ? '0' : '') + date.getHours(),
                    ':',
                    (date.getMinutes() < 10 ? '0' : '') + date.getMinutes(),
                    ':',
                    (date.getSeconds() < 10 ? '0' : '') + date.getSeconds(),
                    'Z'
                );
            }

            return dateText.join('');
        } else {
            return '';
        }
    }

    stringifyDateWithOffset(date: Date, showTime: boolean = false) {
        if (showTime) {
            const offsetMinutes = new Date().getTimezoneOffset() * -1;
            date.setMinutes(date.getMinutes() - offsetMinutes);
        }

        return this.stringifyDate(date, showTime);
    }

    isValueHtml(value) {
        let res = false;
        const REGEXP = /<\/?[a-z][\s\S]*>/i;
        res = REGEXP.test(value);

        return res;
    }

    isMobile() {
        // TODO:
        const isMobile = false;//this.deviceService.isMobile();
        return isMobile;
    }

    isTablet() {
        // TODO:
        const isTablet = false;//this.deviceService.isTablet();
        return isTablet;
    }
}