/*
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Config file for defining DSL2 per module options and publishing paths
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    Available keys to override module options:
        ext.args   = Additional arguments appended to command in module.
        ext.args2  = Second set of arguments appended to command in module (multi-tool modules).
        ext.args3  = Third set of arguments appended to command in module (multi-tool modules).
        ext.prefix = File name prefix for output files.
        ext.when   = When to run the module.
----------------------------------------------------------------------------------------
*/

// TRIMMING

process {

    withName: 'FASTP' {
        ext.args = [ "",
            !params.trim_fastq             ? "--disable_adapter_trimming"                 : "", // Disable adapter trimming
            params.clip_r1 > 0             ? "--trim_front1 ${params.clip_r1}"            : "", // Remove bp from the 5' end of read 1
            params.clip_r2   > 0           ? "--trim_front2 ${params.clip_r2}"            : "", // Remove bp from the 5' end of read 2
            params.three_prime_clip_r1 > 0 ? "--trim_tail1 ${params.three_prime_clip_r1}" : "", // Remove bp from the 3' end of read 1 AFTER adapter/quality trimming has been performed
            params.three_prime_clip_r2 > 0 ? "--trim_tail2 ${params.three_prime_clip_r2}" : "", // Remove bp from the 3' end of read 2 AFTER adapter/quality trimming has been performed
            params.trim_nextseq            ? "--trim_poly_g"                              : "", // Apply the --nextseq=X option, to trim based on quality after removing poly-G tails
            params.split_fastq > 0         ? "--split_by_lines ${params.split_fastq * 4}" : ""
        ].join(" ").trim()
        publishDir = [
            [
                path: { "${params.outdir}/reports/fastp/${meta.sample}" },
                mode: params.publish_dir_mode,
                pattern: "*.{html,json,log}"
            ],
            [
                enabled: params.save_trimmed || params.save_split_fastqs,
                path: { "${params.outdir}/preprocessing/fastp/${meta.sample}/" },
                mode: params.publish_dir_mode,
                pattern: "*.fastp.fastq.gz"
            ]
        ]
    }
}
