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import {Injectable} from "@angular/core";
import {MultiselectFormControl} from "../../../../models/formControlModels/multiselectFormControl.model";
import {MultiSelectItem} from "./multiselect.model";
import * as _ from "lodash";
@Injectable()
export class MultiselectFormControlService {
convertOriginalItems = (control : MultiselectFormControl) : Promise<MultiSelectItem[]> => {
return new Promise<MultiSelectItem[]>((resolve) =>{
let result: MultiSelectItem[] = [];
if(control.options$) {
let index: number = 1;
control.options$.map((originalItems: any) => {
result.push(new MultiSelectItem(index, originalItems[control.ngValue], originalItems[control.selectedFieldName]));
index++;
});
}
resolve(result);
})
};
convertOptionsToHashMap = (config : MultiselectFormControl) => {
let index = 1;
return _.reduce(config.options$ , (obj, param: any ) => {
param.index = index;
index++;
obj[param[config.ngValue]] = param;
return obj;
}, {});
};
convertSelectedItems(control : MultiselectFormControl) : Promise<MultiSelectItem[]>{
return new Promise<MultiSelectItem[]>((resolve) =>{
let result: MultiSelectItem[] = [];
const hashMap = this.convertOptionsToHashMap(control);
if(control.options$ && control.value) {
const convertArray = control.convertOriginalDataToArray ? control.convertOriginalDataToArray(control.value) : control.value;
convertArray.map((itemId) => {
const uniqueIdentifier = itemId.trim();
result.push(new MultiSelectItem(hashMap[uniqueIdentifier].index, hashMap[uniqueIdentifier][control.ngValue], hashMap[uniqueIdentifier][control.selectedFieldName]));
});
}
resolve(result);
});
}
}
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