const app = require('vn-loopback/server/server');

describe('Worker absences()', () => {
    it('should get the absence calendar for a full year contract', async() => {
        let ctx = {req: {accessToken: {userId: 106}}};
        let workerFk = 106;

        const started = new Date();
        started.setHours(0, 0, 0, 0);
        started.setMonth(0);
        started.setDate(1);

        const monthIndex = 11;
        const ended = new Date();
        ended.setHours(0, 0, 0, 0);
        ended.setMonth(monthIndex + 1);
        ended.setDate(0);

        let result = await app.models.Calendar.absences(ctx, workerFk, started, ended);
        let calendar = result[0];
        let absences = result[1];

        expect(calendar.totalHolidays).toEqual(27.5);
        expect(calendar.holidaysEnjoyed).toEqual(5);

        let firstType = absences[0].absenceType().name;
        let sixthType = absences[5].absenceType().name;

        expect(firstType).toMatch(/(Holidays|Leave of absence)/);
        expect(sixthType).toMatch(/(Holidays|Leave of absence)/);
    });

    it('should get the absence calendar for a permanent contract', async() => {
        let workerFk = 106;
        let worker = await app.models.WorkerLabour.findById(workerFk);
        let endedDate = worker.ended;

        await app.models.WorkerLabour.rawSql(
            `UPDATE postgresql.business SET date_end = ? WHERE business_id = ?`,
            [null, worker.businessFk]
        );

        let ctx = {req: {accessToken: {userId: 9}}};

        const started = new Date();
        started.setHours(0, 0, 0, 0);
        started.setMonth(0);
        started.setDate(1);

        const monthIndex = 11;
        const ended = new Date();
        ended.setHours(0, 0, 0, 0);
        ended.setMonth(monthIndex + 1);
        ended.setDate(0);

        let result = await app.models.Calendar.absences(ctx, workerFk, started, ended);
        let calendar = result[0];
        let absences = result[1];

        expect(calendar.totalHolidays).toEqual(27.5);
        expect(calendar.holidaysEnjoyed).toEqual(5);

        let firstType = absences[0].absenceType().name;
        let sixthType = absences[5].absenceType().name;

        expect(firstType).toMatch(/(Holidays|Leave of absence)/);
        expect(sixthType).toMatch(/(Holidays|Leave of absence)/);

        // restores the contract end date
        await app.models.WorkerLabour.rawSql(
            `UPDATE postgresql.business SET date_end = ? WHERE business_id = ?`,
            [endedDate, worker.businessFk]
        );
    });

    it('should give the same holidays as worked days since the holidays amount matches the amount of days in a year', async() => {
        const today = new Date();

        // getting how many days in a year
        const yearStart = new Date();
        yearStart.setHours(0, 0, 0, 0);
        yearStart.setMonth(0);
        yearStart.setDate(1);

        const yearEnd = new Date();
        const currentYear = yearEnd.getFullYear();
        yearEnd.setFullYear(currentYear + 1);
        yearEnd.setHours(0, 0, 0, 0);
        yearEnd.setMonth(0);
        yearEnd.setDate(1);
        const startedTime = yearStart.getTime();
        const endedTime = yearEnd.getTime();
        const dayTimestamp = 1000 * 60 * 60 * 24;

        const daysInYear = Math.round((endedTime - startedTime) / dayTimestamp);

        // sets the holidays per year to the amount of days in the current year
        let holidaysConfig = await app.models.WorkCenterHoliday.findOne({
            where: {
                workCenterFk: 1,
                year: today.getFullYear()
            }});

        let originalHolidaysValue = holidaysConfig.days;

        await holidaysConfig.updateAttribute('days', daysInYear);

        // normal test begins
        const userId = 106;
        const contract = await app.models.WorkerLabour.findById(userId);
        const contractStartDate = contract.started;

        const startingContract = new Date();
        startingContract.setHours(0, 0, 0, 0);
        startingContract.setMonth(today.getMonth());
        startingContract.setDate(1);

        await app.models.WorkerLabour.rawSql(
            `UPDATE postgresql.business SET date_start = ?, date_end = ? WHERE business_id = ?`,
            [startingContract, yearEnd, contract.businessFk]
        );

        let ctx = {req: {accessToken: {userId: userId}}};

        let result = await app.models.Calendar.absences(ctx, userId, yearStart, yearEnd);
        let calendar = result[0];
        let absences = result[1];

        let remainingDays = 0;
        for (let i = today.getMonth(); i < 12; i++) {
            today.setDate(1);
            today.setMonth(i + 1);
            today.setDate(0);

            remainingDays += today.getDate();
        }

        expect(calendar.totalHolidays).toEqual(remainingDays);
        expect(calendar.holidaysEnjoyed).toEqual(5);

        let firstType = absences[0].absenceType().name;
        let sixthType = absences[5].absenceType().name;

        expect(firstType).toMatch(/(Holidays|Leave of absence)/);
        expect(sixthType).toMatch(/(Holidays|Leave of absence)/);

        // resets the holidays per year with originalHolidaysValue and the contract starting date
        await app.models.WorkCenterHoliday.updateAll(
            {
                workCenterFk: 1,
                year: today.getFullYear()
            },
            {
                days: originalHolidaysValue
            }
        );

        await app.models.WorkerLabour.rawSql(
            `UPDATE postgresql.business SET date_start = ? WHERE business_id = ?`,
            [contractStartDate, contract.businessFk]
        );
    });
});