const models = require('vn-loopback/server/server').models;
const LoopBackContext = require('loopback-context');

describe('Client Model', () => {
    const activeCtx = {
        accessToken: {userId: 9},
        http: {
            req: {
                headers: {origin: 'http://localhost'},
                [`__`]: value => {
                    return value;
                }
            }
        }
    };
    const ctx = {req: activeCtx};
    const chatModel = models.Chat;
    const instance = {id: 1101, name: 'Bruce Banner'};
    const previousWorkerId = 1106; // DavidCharlesHaller
    const currentWorkerId = 1107; // HankPym

    beforeEach(() => {
        spyOn(LoopBackContext, 'getCurrentContext').and.returnValue({
            active: activeCtx
        });
    });

    describe('notifyAssignment()', () => {
        it('should call to the Chat send() method for both workers', async() => {
            spyOn(chatModel, 'send').and.callThrough();

            await models.Client.notifyAssignment(instance, previousWorkerId, currentWorkerId);

            expect(chatModel.send).toHaveBeenCalledWith(ctx, '@DavidCharlesHaller', `Client assignment has changed`);
            expect(chatModel.send).toHaveBeenCalledWith(ctx, '@HankPym', `Client assignment has changed`);
        });

        it('should call to the Chat send() method for the previous worker', async() => {
            spyOn(chatModel, 'send').and.callThrough();

            await models.Client.notifyAssignment(instance, null, currentWorkerId);

            expect(chatModel.send).toHaveBeenCalledWith(ctx, '@HankPym', `Client assignment has changed`);
        });

        it('should call to the Chat send() method for the current worker', async() => {
            spyOn(chatModel, 'send').and.callThrough();

            await models.Client.notifyAssignment(instance, previousWorkerId, null);

            expect(chatModel.send).toHaveBeenCalledWith(ctx, '@DavidCharlesHaller', `Client assignment has changed`);
        });
    });

    describe('changeCredit()', () => {
        it('should fail to change the credit as a salesAssistant set to zero by a financialBoss', async() => {
            const tx = await models.Client.beginTransaction({});

            let error;

            try {
                const options = {transaction: tx};
                const context = {options};

                // Set credit to zero by a financialBoss
                const financialBoss = await models.VnUser.findOne({
                    where: {name: 'financialBoss'}
                }, options);
                context.options.accessToken = {userId: financialBoss.id};

                await models.Client.changeCredit(context, instance, {credit: 0});

                const salesAssistant = await models.VnUser.findOne({
                    where: {name: 'salesAssistant'}
                }, options);
                context.options.accessToken = {userId: salesAssistant.id};

                await models.Client.changeCredit(context, instance, {credit: 300});

                await tx.rollback();
            } catch (e) {
                error = e;
                await tx.rollback();
            }

            expect(error.message).toEqual(`You can't change the credit set to zero from a financialBoss`);
        });

        it('should fail to change to a high credit amount as a salesAssistant', async() => {
            const tx = await models.Client.beginTransaction({});

            let error;

            try {
                const options = {transaction: tx};
                const context = {options};

                const salesAssistant = await models.VnUser.findOne({
                    where: {name: 'salesAssistant'}
                }, options);
                context.options.accessToken = {userId: salesAssistant.id};

                await models.Client.changeCredit(context, instance, {credit: 99999});

                await tx.rollback();
            } catch (e) {
                error = e;
                await tx.rollback();
            }

            expect(error.message).toEqual(`You don't have enough privileges to set this credit amount`);
        });
    });
});