import BaseModel from 'Common/Models/BaseModel';
import BadDataException from 'Common/Types/Exception/BadDataException';
import { JSONObject } from 'Common/Types/JSON';
import Permission from 'Common/Types/Permission';
import BillingInvoice from 'Model/Models/BillingInvoice';
import Project from 'Model/Models/Project';
import { IsBillingEnabled } from '../Config';
import UserMiddleware from '../Middleware/UserAuthorization';
import BillingInvoiceService, {
    Service as BillingInvoiceServiceType,
} from '../Services/BillingInvoiceService';
import BillingService, { Invoice } from '../Services/BillingService';
import ProjectService from '../Services/ProjectService';
import {
    ExpressRequest,
    ExpressResponse,
    NextFunction,
} from '../Utils/Express';
import Response from '../Utils/Response';
import BaseAPI from './BaseAPI';

export default class UserAPI extends BaseAPI<
    BillingInvoice,
    BillingInvoiceServiceType
> {
    public constructor() {
        super(BillingInvoice, BillingInvoiceService);

        this.router.post(
            `/${new this.entityType().getCrudApiPath()?.toString()}/pay`,
            UserMiddleware.getUserMiddleware,
            async (
                req: ExpressRequest,
                res: ExpressResponse,
                next: NextFunction
            ) => {
                try {
                    if (!IsBillingEnabled) {
                        throw new BadDataException(
                            'Billign is not enabled for this server'
                        );
                    }

                    if (req.body['projectId']) {
                        throw new BadDataException(
                            'projectId is required in request body'
                        );
                    }

                    const userPermissions = (await this.getPermissionsForTenant(
                        req
                    )).filter((permission) => {
                        console.log(permission.permission);
                        //FIX: Change "Project"
                        return (
                            permission.permission.toString() === Permission.ProjectOwner.toString() || permission.permission.toString() === Permission.CanEditInvoices.toString()
                        );
                    });

                    if (userPermissions.length === 0) {
                        throw new BadDataException(
                            `You need ${Permission.ProjectOwner} or ${Permission.CanEditInvoices} permission to pay invoices.`
                        );
                    }

                    const project: Project | null =
                        await ProjectService.findOneById({
                            id: this.getTenantId(req)!,
                            props: {
                                isRoot: true,
                            },
                            select: {
                                _id: true,
                                paymentProviderCustomerId: true,
                                paymentProviderSubscriptionId: true
                            },
                        });

                    if (!project) {
                        throw new BadDataException('Project not found');
                    }

                    if (!project) {
                        throw new BadDataException('Project not found');
                    }

                    if (!project.paymentProviderCustomerId) {
                        throw new BadDataException(
                            'Payment Provider customer not found'
                        );
                    }

                    if (!project.paymentProviderSubscriptionId) {
                        throw new BadDataException(
                            'Payment Provider subscription not found'
                        );
                    }

                    const body: JSONObject = req.body;

                    const item: BillingInvoice = BaseModel.fromJSON<BillingInvoice>(
                        body['data'] as JSONObject,
                        this.entityType
                    ) as BillingInvoice;


                    if (!item.paymentProviderInvoiceId) {
                        throw new BadDataException("Invoice ID not found");
                    }

                    if (!item.paymentProviderCustomerId) {
                        throw new BadDataException("Customer ID not found");
                    }

                    const invoice: Invoice =
                        await BillingService.payInvoice(
                            item.paymentProviderCustomerId!,
                            item.paymentProviderInvoiceId!,
                        );


                    // save updated status. 

                    await this.service.updateOneBy({
                        query: {
                            paymentProviderInvoiceId: invoice.id!
                        },
                        props: {
                            isRoot: true,
                            ignoreHooks: true
                        },
                        data: {
                            status: invoice.status
                        }
                    })

                    // refresh subscription status. 
                    const subscriptionState = await BillingService.getSubscriptionStatus(project.paymentProviderSubscriptionId as string);

                    await ProjectService.updateOneById({
                        id: project.id!,
                        data: {
                            paymentProviderSubscriptionStatus: subscriptionState
                        },
                        props: {
                            isRoot: true,
                            ignoreHooks: true
                        }
                    });

                    return Response.sendEmptyResponse(req, res);
                    
                } catch (err) {
                    next(err);
                }
            }
        );
    }
}