task TNseq {

  String sample
  String SENTIEON_INSTALL_DIR
  String SENTIEON_LICENSE
  File tumor_recaled_bam
  File tumor_recaled_bam_index
  File? normal_recaled_bam
  File? normal_recaled_bam_index
  String tumor_name
  String normal_name

  File ref_dir
  String fasta
  File germline_resource
  File germline_resource_tbi
  File? regions
  Int? interval_padding
  File? pon_vcf

  String docker
  String cluster_config  
  String disk_size

  command <<<
    set -o pipefail
    set -e
    export SENTIEON_LICENSE=${SENTIEON_LICENSE}
    nt=$(nproc)

    if [ ${regions} ]; then
      INTERVAL="--interval ${regions} --interval_padding ${interval_padding}"
    else
      INTERVAL=""
    fi

    if [ ${pon_vcf} ]; then
      PON="--pon ${pon_vcf}"
      ${SENTIEON_INSTALL_DIR}/bin/sentieon util vcfindex ${pon_vcf}
    else
      PON=""
    fi

    if [ ${normal_recaled_bam} ]; then
      INPUT="-i ${tumor_recaled_bam} -i ${normal_recaled_bam}"
      SAMPLE="--tumor_sample ${tumor_name} --normal_sample ${normal_name}"
      typ="TN"
    else
      INPUT="-i ${tumor_recaled_bam}"
      SAMPLE="--tumor_sample ${tumor_name}"
      typ="T"
    fi

    ${SENTIEON_INSTALL_DIR}/bin/sentieon driver -t $nt -r ${ref_dir}/${fasta} \
    $INPUT $INTERVAL \
    --algo TNhaplotyper2 $SAMPLE \
    --germline_vcf ${germline_resource} \
    $PON \
    ${sample}.TNseq.$typ.vcf \
    --algo OrientationBias --tumor_sample ${tumor_name} \
    ${sample}.orientation \
    --algo ContaminationModel $SAMPLE \
    --vcf ${germline_resource} \
    --tumor_segments ${sample}.contamination.segments \
    ${sample}.contamination
    
    ${SENTIEON_INSTALL_DIR}/bin/sentieon driver -t $nt \
    -r ${ref_dir}/${fasta} \
    --algo TNfilter $SAMPLE \
    -v ${sample}.TNseq.$typ.vcf \
    --contamination ${sample}.contamination \
    --tumor_segments ${sample}.contamination.segments \
    --orientation_priors ${sample}.orientation \
    ${sample}.TNseq.$typ.filter.vcf
  >>>

  runtime {
    docker: docker
    cluster: cluster_config
    systemDisk: "cloud_ssd 40"
    dataDisk: "cloud_ssd " + disk_size + " /cromwell_root/"
  }

  output {
    File TNseq_filter_vcf = "${sample}.TNseq.${typ}.filter.vcf"
    File TNseq_filter_vcf_index = "${sample}.TNseq.${typ}.filter.vcf.idx"
    File TNseq_vcf = "${sample}.TNseq.${typ}.vcf"
    File TNseq_vcf_index = "${sample}.TNseq.${typ}.vcf.idx"
    File contamination = "${sample}.contamination"
    File contamination_segments = "${sample}.contamination.segments"
    File orientation = "${sample}.orientation"
  }
}