import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import 'rxjs/Rx';

@Injectable()

export class ManageRoleService {

    private environment: any;

    constructor(public http: HttpClient) {
    }
    public setEnvironment = (environment: any) => {
        this.environment = environment;
    }

    public getRoleMembers = (campus, role) => {
        return this.http.get(`${this.environment.SERVER_URL}/secure/roles/${role}/campusCode/${campus}`);
    }

    public addRole = (userId, campus, role) => {
        return this.http.put(`${this.environment.SERVER_URL}/secure/roles/${role}/campusCode/${campus}/members/${userId}`, {}, {});
    }

    public removeRole = (userId, campus, role) => {
        return this.http.delete(`${this.environment.SERVER_URL}/secure/roles/${role}/campusCode/${campus}/members/${userId}`);
    }

    public getSearchResultsByCampus = (startsWith: string, campusCode: string) => {
        if (campusCode)
            return this.http.get(`${this.environment.PEOPLE_SERVICE_URL}/search/campusCode/${campusCode}/maxResults/20?searchTerms=${startsWith}`);
        else
            return this.http.get(`${this.environment.PEOPLE_SERVICE_URL}/search/maxResults/20?searchTerms=${startsWith}`);
    }

    public highlightSearchText(people: any, searchText: string) {
        let displayText = people.firstName + " " + people.lastName + (people.email?" (" + people.email + ")":"");
        let SearchTextArr = [], displayTextArr = [];
        let result = "";
        if (searchText.trim().indexOf(" ") > 0) {
            SearchTextArr = searchText.split(' ');
            displayTextArr = displayText.split(' ');
            displayTextArr.forEach(building => {
                for (var i = 0; i < SearchTextArr.length; i++) {
                    let res = this.replaceHighlightText(SearchTextArr[i], building);
                    if (res == building && i == SearchTextArr.length - 1)
                        result += building + " ";
                    else if (this.containsHTML(res)) {
                        result += res + " ";
                        break;
                    }
                }
            });
        }
        else {
            result = this.replaceHighlightText(searchText, displayText);
        }
        return result;
    }

    private containsHTML(html: string) {
        var textMatcher = new RegExp(/<span/g);
        return html.match(textMatcher) ? true : false;
    }

    private replaceHighlightText(searchKey: string, srcText: string) {
        if (searchKey.trim()) {
            var textMatcher = new RegExp(searchKey, 'ig');
            var result = srcText.replace(textMatcher, function (match) {
                if (match.length > 0) {
                    let tag = document.createElement('span');
                    tag.innerHTML = match;
                    tag.className = "highlight-text-auto"
                    return tag.outerHTML;
                }
                else {
                    return srcText;
                }
            });
            return result;
        }
        else
            return srcText;
    }
}