import {
    AbstractConsentHandler,
    BeslistConsentType, ConsentStatusData,
    ConsentTypeMapping
} from './abstract.consent-handler';

export type ComplianzConsentType = 'necessary' | 'functional' | 'preferences' | 'statistics' | 'marketing';

export class ComplianzConsentHandler extends AbstractConsentHandler {
    public static consentHandlerName = 'complianz-gdpr';
    public static consentTypeMapping: ConsentTypeMapping<ComplianzConsentType | undefined> = {
        necessary: 'functional',
        functional: 'functional',
        analytics: 'statistics',
        performance: undefined,
        marketing: 'marketing',
    }
    public static cookieNameMapping: ConsentTypeMapping<string | undefined> = {
        necessary: 'cmplz_functional',
        functional: 'cmplz_functional',
        analytics: 'cmplz_statistics',
        performance: undefined,
        marketing: 'cmplz_marketing',
    };

    protected getConsentHandlerName(): string {
        return ComplianzConsentHandler.consentHandlerName;
    };

    protected getConsentTypeMapping(): ConsentTypeMapping<ComplianzConsentType | undefined> {
        return ComplianzConsentHandler.consentTypeMapping;
    }

    protected getCookieNameMapping(): ConsentTypeMapping<string | undefined> {
        return ComplianzConsentHandler.cookieNameMapping;
    }

    protected getInitialConsent(): ConsentStatusData {
        return {
            necessary: this.getConsentFromCookie('necessary') === true ? 'granted' : 'denied',
            functional: this.getConsentFromCookie('functional') === true ? 'granted' : 'denied',
            analytics: this.getConsentFromCookie('analytics') === true ? 'granted' : 'denied',
            performance: this.getConsentFromCookie('performance') === true ? 'granted' : 'denied',
            marketing: this.getConsentFromCookie('marketing') === true ? 'granted' : 'denied',
        };
    }

    public initializeConsentUpdateListener(): void {
        document.addEventListener('cmplz_status_change', (event: any) => {
            const consentStatusData: ConsentStatusData = {};

            if (event.detail.category === this.mapConsentType('necessary')) {
                consentStatusData.necessary = event.detail.value === 'allow' ? 'granted' : 'denied';
            }

            if (event.detail.category === this.mapConsentType('functional')) {
                consentStatusData.functional = event.detail.value === 'allow' ? 'granted' : 'denied';
            }

            if (event.detail.category === this.mapConsentType('analytics')) {
                consentStatusData.analytics = event.detail.value === 'allow' ? 'granted' : 'denied';
            }

            if (event.detail.category === this.mapConsentType('marketing')) {
                consentStatusData.marketing = event.detail.value === 'allow' ? 'granted' : 'denied';
            }

            this.updateConsent(consentStatusData);
        });
    }

    protected parseConsentCookieValue(consentType: BeslistConsentType, cookieValue: string): boolean {
        return cookieValue.includes('allow');
    }
}