private copyMove()

in src/app/files/files.service.ts [703:735]
29 lines of code
12 McCabe index (conditional complexity)

    private copyMove(copy: boolean, sources: Array<ApiFile>, destination: ApiFile, name: string = null): Promise<Array<ApiFile>> {
        let forAll = null;
        let promises = [];

        this.getChildren(destination)
            .then(children => {
                for (let source of sources) {
                    let n = name ? name : source.name;
                    let existing = children.find(c => c.name === n);

                    if (existing) {
                        promises.push(this.get(source.id)
                            .then(s => {
                                if (s.parent.id == destination.id) {
                                    return copy ? this.performCopy(s, destination, this.getUniqueName(children, n, " - Copy")) : Promise.resolve(s);
                                }
                                else if ((forAll || confirm('The destination already has a file named "' + n + '". Do you want to overwrite it?'))) {
                                    if (sources.length > 1 && forAll === null) {
                                        forAll = confirm("Do this for all conflicts?");
                                    }

                                    return copy ? this.performCopy(s, destination, n) : this.performMove(s, destination, n);
                                }
                            }));
                    }
                    else {
                        promises.push(copy ? this.performCopy(source, destination, n) : this.performMove(source, destination, n));
                    }
                }
            });

        return Promise.all(promises);
    }