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

import {
    HttpHeaders,
} from '@angular/common/http';

import {
    BrandSettingsInterface,
} from './../../../models/index';

import {
    CurrentEnvironmentService,
} from './../index';

@Injectable()
export class ApiKeyHeaderGenerationService {
    constructor(
        @Inject('brandSettings')
        private _brandSettings: BrandSettingsInterface,
        private _currentEnvironmentService: CurrentEnvironmentService,
    ) {}

    public getProductRequestHeaders() {
        return new HttpHeaders({
            Authorization: `ApiKey ${this._getPublishableKey()}`,
        });
    }

    private _getPublishableKey() {
        return this._currentEnvironmentService.isProduction()
            ?
            this._brandSettings.publishableKey
            :
            this._brandSettings.testPublishableKey;
    }
}