this.getTriggerAssignment = function()

in action/lib/Database.js [93:132]

• 30 lines of code
• 7 McCabe index (conditional complexity)

    this.getTriggerAssignment = function(workers) {

        return new Promise((resolve, reject) => {
            var assignment = workers[0] || 'worker0';

            if (workers.length > 1) {
                this.db.view(designDoc, assignmentView, {group: true}, (err, result) => {
                    if (err) {
                        reject(err);
                    } else {
                        // a map between available workers and their number of assigned triggers
                        // values will be populated with the results of the assignment view
                        var counter = {};
                        workers.forEach(worker => {
                            counter[worker] = 0;
                        });

                        // update counter values with the number of assigned triggers
                        // for each worker
                        result.rows.forEach(row => {
                            if (row.key in counter) {
                                counter[row.key] = row.value;
                            }
                        });

                        // find which of the available workers has the least number of
                        // assigned triggers
                        for (availableWorker in counter) {
                            if (counter[availableWorker] < counter[assignment]) {
                                assignment = availableWorker;
                            }
                        }
                        resolve(assignment);
                    }
                });
            } else {
                resolve(assignment);
            }
        });
    };