global class ConvertLeadAction {
  @InvocableMethod(label='Convert Leads')
  global static List<ConvertLeadActionResult> convertLeads(List<ConvertLeadActionRequest> requests) {
    List<ConvertLeadActionResult> results = new List<ConvertLeadActionResult>();
    for (ConvertLeadActionRequest request : requests) {
      results.add(convertLead(request));
    }
    return results;
  }

  public static ConvertLeadActionResult convertLead(ConvertLeadActionRequest request) {
    Database.LeadConvert lc = new Database.LeadConvert();
    lc.setLeadId(request.leadId);
    lc.setConvertedStatus(request.convertedStatus);

    if (request.accountId != null) {
        lc.setAccountId(request.accountId);
    }

    if (request.contactId != null) {
      lc.setContactId(request.contactId);
    }

    if (request.overWriteLeadSource != null && request.overWriteLeadSource) {
      lc.setOverwriteLeadSource(request.overWriteLeadSource);
    }

    if (request.createOpportunity != null && !request.createOpportunity) {
      lc.setDoNotCreateOpportunity(!request.createOpportunity);
    }

    if (request.opportunityName != null) {
      lc.setOpportunityName(request.opportunityName);
    }

    if (request.ownerId != null) {
      lc.setOwnerId(request.ownerId);
    }

    if (request.sendEmailToOwner != null && request.sendEmailToOwner) {
      lc.setSendNotificationEmail(request.sendEmailToOwner);
    }

    Database.LeadConvertResult lcr = Database.convertLead(lc, true);
    if (lcr.isSuccess()) {
      ConvertLeadActionResult result = new ConvertLeadActionResult();
      result.accountId = lcr.getAccountId();
      result.contactId = lcr.getContactId();
      result.opportunityId = lcr.getOpportunityId();
      return result;
    } else {
      throw new ConvertLeadActionException(lcr.getErrors()[0].getMessage());
    }
  }

  global class ConvertLeadActionRequest {
    @InvocableVariable(required=true)
    global ID leadId;

    @InvocableVariable(required=true)
    global String convertedStatus;

    @InvocableVariable
    global ID accountId;

    @InvocableVariable
    global ID contactId;

    @InvocableVariable
    global Boolean overWriteLeadSource;

    @InvocableVariable
    global Boolean createOpportunity;

    @InvocableVariable
    global String opportunityName;

    @InvocableVariable
    global ID ownerId;

    @InvocableVariable
    global Boolean sendEmailToOwner;
  }

  global class ConvertLeadActionResult {
    @InvocableVariable
    global ID accountId;

    @InvocableVariable
    global ID contactId;

    @InvocableVariable
    global ID opportunityId;
  }

  class ConvertLeadActionException extends Exception {}
}