import {
    Component,
    OnInit,
} from '@angular/core';
import { Router } from '@angular/router';

import { ToasterService } from 'angular2-toaster';

import { SubscriptionResponse } from 'jslib-common/models/response/subscriptionResponse';

import { ApiService } from 'jslib-common/abstractions/api.service';
import { I18nService } from 'jslib-common/abstractions/i18n.service';
import { LogService } from 'jslib-common/abstractions/log.service';
import { PlatformUtilsService } from 'jslib-common/abstractions/platformUtils.service';
import { TokenService } from 'jslib-common/abstractions/token.service';

@Component({
    selector: 'app-user-subscription',
    templateUrl: 'user-subscription.component.html',
})
export class UserSubscriptionComponent implements OnInit {
    loading = false;
    firstLoaded = false;
    adjustStorageAdd = true;
    showAdjustStorage = false;
    showUpdateLicense = false;
    sub: SubscriptionResponse;
    selfHosted = false;

    cancelPromise: Promise<any>;
    reinstatePromise: Promise<any>;

    constructor(private tokenService: TokenService, private apiService: ApiService,
        private platformUtilsService: PlatformUtilsService, private i18nService: I18nService,
        private toasterService: ToasterService, private router: Router, private logService: LogService) {
        this.selfHosted = platformUtilsService.isSelfHost();
    }

    async ngOnInit() {
        await this.load();
        this.firstLoaded = true;
    }

    async load() {
        if (this.loading) {
            return;
        }

        if (this.tokenService.getPremium()) {
            this.loading = true;
            this.sub = await this.apiService.getUserSubscription();
        } else {
            this.router.navigate(['/settings/premium']);
            return;
        }

        this.loading = false;
    }

    async reinstate() {
        if (this.loading) {
            return;
        }

        if (this.usingInAppPurchase) {
            this.platformUtilsService.showDialog(this.i18nService.t('manageSubscriptionFromStore'),
                this.i18nService.t('cancelSubscription'), null, null, 'warning');
            return;
        }

        const confirmed = await this.platformUtilsService.showDialog(this.i18nService.t('reinstateConfirmation'),
            this.i18nService.t('reinstateSubscription'), this.i18nService.t('yes'), this.i18nService.t('cancel'));
        if (!confirmed) {
            return;
        }

        try {
            this.reinstatePromise = this.apiService.postReinstatePremium();
            await this.reinstatePromise;
            this.toasterService.popAsync('success', null, this.i18nService.t('reinstated'));
            this.load();
        } catch (e) {
            this.logService.error(e);
        }
    }

    async cancel() {
        if (this.loading) {
            return;
        }

        if (this.usingInAppPurchase) {
            this.platformUtilsService.showDialog(this.i18nService.t('manageSubscriptionFromStore'),
                this.i18nService.t('cancelSubscription'), null, null, 'warning');
            return;
        }

        const confirmed = await this.platformUtilsService.showDialog(this.i18nService.t('cancelConfirmation'),
            this.i18nService.t('cancelSubscription'), this.i18nService.t('yes'), this.i18nService.t('no'), 'warning');
        if (!confirmed) {
            return;
        }

        try {
            this.cancelPromise = this.apiService.postCancelPremium();
            await this.cancelPromise;
            this.toasterService.popAsync('success', null, this.i18nService.t('canceledSubscription'));
            this.load();
        } catch (e) {
            this.logService.error(e);
        }
    }

    downloadLicense() {
        if (this.loading) {
            return;
        }

        const licenseString = JSON.stringify(this.sub.license, null, 2);
        this.platformUtilsService.saveFile(window, licenseString, null, 'bitwarden_premium_license.json');
    }

    updateLicense() {
        if (this.loading) {
            return;
        }
        this.showUpdateLicense = true;
    }

    closeUpdateLicense(load: boolean) {
        this.showUpdateLicense = false;
        if (load) {
            this.load();
        }
    }

    adjustStorage(add: boolean) {
        if (this.usingInAppPurchase) {
            this.platformUtilsService.showDialog(this.i18nService.t('cannotPerformInAppPurchase'),
                this.i18nService.t(add ? 'addStorage' : 'removeStorage'), null, null, 'warning');
            return;
        }
        this.adjustStorageAdd = add;
        this.showAdjustStorage = true;
    }

    closeStorage(load: boolean) {
        this.showAdjustStorage = false;
        if (load) {
            this.load();
        }
    }

    get subscriptionMarkedForCancel() {
        return this.subscription != null && !this.subscription.cancelled && this.subscription.cancelAtEndDate;
    }

    get subscription() {
        return this.sub != null ? this.sub.subscription : null;
    }

    get nextInvoice() {
        return this.sub != null ? this.sub.upcomingInvoice : null;
    }

    get storagePercentage() {
        return this.sub != null && this.sub.maxStorageGb ?
            +(100 * (this.sub.storageGb / this.sub.maxStorageGb)).toFixed(2) : 0;
    }

    get storageProgressWidth() {
        return this.storagePercentage < 5 ? 5 : 0;
    }

    get usingInAppPurchase() {
        return this.sub != null ? this.sub.usingInAppPurchase : false;
    }
}