const UserError = require('vn-loopback/util/user-error');

module.exports = Self => {
    Self.remoteMethodCtx('updateTimeEntry', {
        description: 'Updates a time entry for a worker if the user role is above the worker',
        accessType: 'WRITE',
        accepts: [{
            arg: 'id',
            type: 'number',
            required: true,
            description: 'The time entry id',
            http: {source: 'path'}
        },
        {
            arg: 'direction',
            type: 'string',
            required: true
        }],
        returns: {
            type: 'boolean',
            root: true
        },
        http: {
            path: `/:id/updateTimeEntry`,
            verb: 'POST'
        }
    });

    Self.updateTimeEntry = async(ctx, timeEntryId, direction, options) => {
        const currentUserId = ctx.req.accessToken.userId;
        const models = Self.app.models;
        const myOptions = {userId: currentUserId};
        let tx;

        if (typeof options == 'object')
            Object.assign(myOptions, options);

        if (!myOptions.transaction) {
            tx = await Self.beginTransaction({});
            myOptions.transaction = tx;
        }

        try {
            const {id, userFk, timed, manual} = await Self.findById(timeEntryId, null, myOptions);
            const isSubordinate = await models.Worker.isSubordinate(ctx, userFk, myOptions);
            const isTeamBoss = await models.ACL.checkAccessAcl(ctx, 'Worker', 'isTeamBoss', 'WRITE');
            const isHimself = currentUserId == userFk;

            const notAllowed = isSubordinate === false || (isSubordinate && isHimself && !isTeamBoss);
            if (notAllowed) throw new UserError(`You don't have enough privileges`);

            await models.WorkerTimeControl.deleteById(id, myOptions);
            const {id: newTimeEntryId} = await Self.clockIn(
                userFk, timed, direction, null, myOptions
            );

            if (!manual) await Self.updateAll({id: newTimeEntryId}, {manual: false}, myOptions);
            await models.WorkerTimeControl.resendWeeklyHourEmail(ctx, userFk, timed, myOptions);

            if (tx) await tx.commit();
            return newTimeEntryId;
        } catch (e) {
            if (tx) await tx.rollback();
            throw e;
        }
    };
};