private async _validatePicklists()

in src/Common/ProcessImporter.ts [699:739]
36 lines of code
11 McCabe index (conditional complexity)

    private async _validatePicklists(payload: IProcessPayload): Promise<void> {
        assert(payload.targetAccountInformation && payload.targetAccountInformation.collectionFields, "[Unexpected] - targetInformation not properly populated");

        const fieldToPicklistIdMapping = payload.targetAccountInformation.fieldRefNameToPicklistId; // This is output for import picklist/field
        const currentTargetFieldToPicklist = await this._populatePicklistDictionary(payload.targetAccountInformation.collectionFields);

        for (const picklistEntry of payload.witFieldPicklists) {
            const fieldRefName = picklistEntry.fieldRefName;
            const currentTargetPicklist = currentTargetFieldToPicklist[fieldRefName];
            if (currentTargetPicklist) {
                // Compare the pick list items 
                let conflict: boolean;
                if (currentTargetPicklist.items.length === picklistEntry.picklist.items.length && !currentTargetPicklist.isSuggested === !picklistEntry.picklist.isSuggested) {
                    for (const sourceItem of picklistEntry.picklist.items) {
                        if (currentTargetPicklist.items.filter(targetItem => targetItem.value === sourceItem.value).length !== 1) {
                            conflict = true;
                            break;
                        }
                    }
                }
                else {
                    conflict = true;
                }

                if (conflict) {
                    if (!(this._config.options && this._config.options.overwritePicklist === true)) {
                        throw new ValidationError(`Picklist field ${fieldRefName} exist on target account but have different items than source, set 'overwritePicklist' option to overwrite`);
                    }
                    else {
                        fieldToPicklistIdMapping[fieldRefName] = currentTargetPicklist.id; // We will need to update the picklist later when import picklists
                    }
                }
                else {
                    fieldToPicklistIdMapping[fieldRefName] = PICKLIST_NO_ACTION; // No action needed since picklist values match.
                }
            }
            else {
                // No-op, leave payload.targetAccountInformation.fieldRefNameToPicklistId[picklistEntry.fieldRefName] = undefined, which indicates creating new picklist.
            }
        }
    }