// Import generic module functions
include { initOptions; saveFiles; getSoftwareName } from './functions'

params.options = [:]
def options    = initOptions(params.options)

process DEEPTOOLS_PLOTFINGERPRINT {
    tag "$meta.id"
    label 'process_high'
    publishDir "${params.outdir}",
        mode: params.publish_dir_mode,
        saveAs: { filename -> saveFiles(filename:filename, options:params.options, publish_dir:getSoftwareName(task.process), publish_id:meta.id) }

    conda     (params.enable_conda ? "bioconda::deeptools=3.4.3" : null)
    container "quay.io/biocontainers/deeptools:3.4.3--py_0"

    input:
    tuple val(meta), path(bams), path(bais)
    
    output:
    tuple val(meta), path("*.pdf")          , emit: pdf
    tuple val(meta), path("*.raw.txt")      , emit: matrix
    tuple val(meta), path("*.qcmetrics.txt"), emit: metrics
    path  "*.version.txt"                   , emit: version

    script:
    def software = getSoftwareName(task.process)
    def prefix   = options.suffix ? "${meta.id}${options.suffix}" : "${meta.id}"
    def extend   = (meta.single_end && params.fragment_size > 0) ? "--extendReads ${params.fragment_size}" : ''
    """
    plotFingerprint \\
        $options.args \\
        $extend \\
        --bamfiles ${bams.join(' ')} \\
        --plotFile ${prefix}.plotFingerprint.pdf \\
        --outRawCounts ${prefix}.plotFingerprint.raw.txt \\
        --outQualityMetrics ${prefix}.plotFingerprint.qcmetrics.txt \\
        --numberOfProcessors $task.cpus

    plotFingerprint --version | sed -e "s/plotFingerprint //g" > ${software}.version.txt
    """
}