import {Injectable } from '@angular/core';

@Injectable()
export class PlatformDetectorService
{
    private _userAgent: string;

    constructor() {
        this._userAgent = window.navigator.userAgent.toLowerCase();
    }

    public getPlatform(): string
    {
        if (this.isTablet())
        {
            return "Tablet";
        }
        else if(this.isMobile())
        {
            return "Mobile";
        }
        else
        {
            return "Desktop";
        }
    }

    // Public properties

    get UserAgent(): string
    {
        return this._userAgent;
    }

    private isTablet(): boolean
    {
        if(this._userAgent.match(/Tablet|iPad/i))
        {
            return true;
        }
        else
        {
            return false;
        }
    }

    private isMobile(): boolean
    {
        if(this._userAgent.match(/Mobile|Windows Phone|Lumia|Android|webOS|iPhone|iPod|Blackberry|PlayBook|BB10|Opera Mini|\bCrMo\/|Opera Mobi/i))
        {
            return true;
        }
        else
        {
            return false;
        }
    };
}