function setModelFromLocalParameters()

in ui-modules/blueprint-composer/app/components/spec-editor/spec-editor.directive.js [1236:1310]
65 lines of code
22 McCabe index (conditional complexity)

        function setModelFromLocalParameters() {
            if (scope.state.parameters && scope.state.parameters.edit && scope.state.parameters.edit.item) {
                let item = scope.state.parameters.edit.item;
                scope.state.parameters.edit.errors = [];
                if (scope.state.parameters.codeModeActive[item.name]) {
                    try {
                        let parsed = parseYamlOrJson(scope.state.parameters.edit.json);
                        checkNameChange(item.name, parsed.name);
                        if (JSON.stringify(item)==JSON.stringify(parsed)) {
                            // no change; don't change else we get a digest cycle
                        } else {
                            Object.keys(item).forEach((k) => delete item[k]);
                            Object.assign(item, parsed);
                        }

                    } catch (e) {
                        // $log.warn("ERROR parsing json", scope.state.parameters.edit.json, e);
                        scope.state.parameters.edit.errors.push({ message: "Invalid JSON for parameter" });
                    }

                } else {
                    if (scope.state.parameters.edit.newName) {
                        if (blueprintService.isReservedKey(scope.state.parameters.edit.newName)) {
                            scope.state.parameters.edit.errors.push({ message: "Illegal key name" });
                        } else if (checkNameChange(item.name, scope.state.parameters.edit.newName)) {
                            item.oldName = item.name; // Parameter name change.
                            item.name = scope.state.parameters.edit.newName;
                        }
                    } else {
                        scope.state.parameters.edit.errors.push({ message: "Key name must not be blank" });
                    }

                    try {
                        let c = scope.state.parameters.edit.constraints ? JSON.parse(scope.state.parameters.edit.constraints) : [];
                        if (Array.isArray(c)) {
                            if (c.length==0) {
                                delete item['constraints'];
                            } else {
                                item.constraints = c;
                            }
                        } else {
                            scope.state.parameters.edit.errors.push({ message: "Constraint JSON must be a list" });
                        }
                    } catch (e) {
                        $log.warn("ERROR parsing constraints", scope.state.parameters.edit.constraints, e);
                        scope.state.parameters.edit.errors.push({ message: "Invalid constraint JSON" });
                    }

                    // empty values are removed
                    if (item.description === '') {
                        delete item['description'];
                    }
                    if (item.label === '') {
                        delete item['label'];
                    }
                    if (item.default === '') {
                        if (scope.state.parameters.edit.original.default!=='') {
                            // don't delete if default was explicitly set in yaml as "";
                            // this allows empty string defaults to be used (although you can't set them in the visual ui)
                            delete item['default'];
                        }
                    }
                }
            }

            let localParams = scope.parameters;
            let result = [];
            for (let paramRef of localParams) {
                if (angular.isUndefined(paramRef) || paramRef === null || paramRef.length < 1) {
                    continue;
                }
                result.push(paramRef);
            }
            scope.model.setParametersFromJson(result);
        }