<tool id="sniffles" name="sniffles" version="@TOOL_VERSION@+galaxy0" profile="23.0">
    <description>Structural variation caller using third generation sequencing</description>
    <macros>
        <token name="@TOOL_VERSION@">2.4</token>
    </macros>
    <xrefs>
        <xref type="bio.tools">sniffles</xref>
    </xrefs>
    <requirements>
        <requirement type="package" version="@TOOL_VERSION@">sniffles</requirement>
    </requirements>
    <version_command>
        <![CDATA[ sniffles --version ]]>
    </version_command>
    <command detect_errors="exit_code">
        <![CDATA[
ln -f -s '${input}' input.bam &&
ln -f -s '${input.metadata.bam_index}' input.bam.bai &&
#if $reference_genome.genome_type_select != "None":
    #if $reference_genome.genome_type_select == "indexed":
        ln -f -s '${reference_genome.genome.fields.path}' 'reference.fa' &&
    #else:
        ln -f -s '${reference_genome.genome}' 'reference.fa' &&
    #end if
#end if
sniffles
-t \${GALAXY_SLOTS:-2}
-i 'input.bam'
-v '$output'
## must set allow-overwrite since the new output vcf file exists
--allow-overwrite
#if $reference_genome.genome_type_select != "None":
   --reference 'reference.fa' 
#end if
## general_options
    --minsupport '$general_options.minsupport'
    --max-splits-kb '$general_options.maxsplitskb'
    --minsvlen '$general_options.minsvlen'
    --mapq '$general_options.mapq'
    --min-alignment-length '$general_options.minalignmentlength'
## clustering_options
    --cluster-binsize '$clustering_options.clusterbinsize'
    --cluster-r '$clustering_options.clusterr'
## advanced_options 
    $advanced_options.mosaic
    ]]>
    </command>
    <inputs>
        <param type="data" name="input" format="bam" label="Input BAM file"/>
        <conditional name="reference_genome">
            <param name="genome_type_select" type="select" label="Reference genome source is required for deletion SV sequence reporting" 
              help="Optional: Select None, a built-in or history reference genome fasta">
                <option value="None" selected="True">No reference fasta - do not report DEL SV sequence</option>
                <option value="indexed">Use a Galaxy server built-in genome</option>
                <option value="history">Use a genome fasta file from the current history</option>
            </param>
            <when value="None">
                <param name="genome" type="text" value="None"/>
            </when>
            <when value="indexed">
                <param name="genome" type="select" optional="false" label="Select a built in reference genome or custom genome" 
                  help="If not listed, add a custom genome or use a reference genome from the history">
                    <options from_data_table="all_fasta">
                        <validator message="No genomes are available " type="no_options"/>
                    </options>
                </param>
            </when>
            <when value="history">
                <param name="genome" type="data" format="fasta" optional="false" label="Select the reference genome fasta from the current history"/>
            </when>
        </conditional>
        <section name="general_options" title="Set general options" expanded="False">
            <param argument="--minsupport" type="text" value="auto" label="Minimum Support" help="Minimum number of reads that support a SV. [auto]. Smaller support values -> more SV reported"/>
            <param name="maxsplitskb" type="float" value="0.1" min="0" label="Maximum Number of Splits per KB" help="Additional number of splits per kilobase read sequence allowed before reads are ignored [0.1]" />
            <param name="minsvlen" type="integer" value="50" min="2" label="Minimum Length" help="Minimum length of SV to be reported. [50]"/>
            <param name="mapq" type="integer" value="20" min="0" label="Minimum Mapping Quality" help="Minimum Mapping Quality to consider. [20]"/>
            <param name="minalignmentlength" type="integer" value="100" min="0" label="Minimum alignment length" help="Reads with alignments shorter than this length (in bp) will be ignored"/>
        </section>
        <section name="clustering_options" title="Clustering/phasing and genotyping options" expanded="False">
            <param argument="--clusterbinsize" value="100" type="integer" min="0" label="Cluster bin size" help="Initial screening bin size [100]"/>
            <param argument="--clusterr" type="float" value="2.5" min="0.0" label="Cluster Multiplier" help="Multiplier for SV start position standard deviation criterion in cluster merging [2.5]"/>
        </section>
        <section name="advanced_options" title="Advanced options" expanded="False">
            <param name="mosaic" type="boolean" value="False" truevalue="--mosaic" falsevalue="" label="Mosaic mode" help="Set Sniffles run mode to detect rare, somatic and mosaic SVs (default: False)" />
        </section>
    </inputs>
    <outputs>
        <data name="output" format="vcf" label="${tool.name} on ${on_string}"/>
    </outputs>
    <tests>
        <test> <!-- test 1 - standard run -->
            <param name="input" value="reads_region.bam"/>
            <output name="output" file="expected_output.vcf" lines_diff="4"/>
        </test>
        <test> <!-- test 2 - filter on mapq -->
            <param name="input" value="reads_region.bam"/>
            <param name="mapq" value="0"/>
            <output name="output" file="expected_output2.vcf" lines_diff="4"/>
        </test>
        <test> <!-- test 3 min support test -->
            <param name="input" value="reads_region.bam"/>
            <param name="minsupport" value="1"/>
            <output name="output" file="expected_outcome3.vcf" lines_diff="4"/>
        </test>
        <test> <!-- test 4 - clustering -->
            <param name="input" value="reads_region.bam"/>
            <param name="clusterbinsize" value="5"/>
            <output name="output" file="expected_outcome4.vcf" lines_diff="4"/>
        </test>
        <test> <!-- test 5 - Advanced - mosaic -->
            <param name="input" value="reads_region.bam"/>
            <param name="mosaic" value="--mosaic"/>
            <output name="output" file="expected_outcome5.vcf" lines_diff="4"/>
        </test>
       <test> <!-- test 6 - reference -->
            <param name="input" value="reads_region.bam"/>
            <conditional name="reference_genome">
                <param name="genome_type_select" value="history"/>
                <param name="genome" value="humsamp.fa"/>
                <param name="genome.ext" value="fasta"/>
            </conditional>
            <output name="output" file="expected_outcome6.vcf" lines_diff="4"/>
        </test>
    </tests>
    <help>
        <![CDATA[
########
Sniffles
########

What is Sniffles?
*****************
Sniffles is a SV caller for long reads. Sniffles2 accurately detect SVs on germline, somatic and population-level for PacBio and Oxford Nanopore read data.

SV are larger events on the genome (e.g. deletions, duplications, insertions, inversions and translocations). 
Sniffles can detect all of these type and more such as nested SVs (e.g. inversion flanked by deletions or an inverted duplication).

Inputs
******

Known to work with Minimap2 bam as input

Parameters
**********

General
-------


+---------------------------+-----------------------------------------------------------------------+
| Parameter                 | Description                                                           |
+===========================+=======================================================================+
| Minimum Support           | Minimum number of reads supporting a SV to be reported. Default:auto  |
+---------------------------+-----------------------------------------------------------------------+
| Maximum Number of Splits  | Maximum number of split segments per kb a read is aligned at before   |
|                           | it is ignored. Default: 7                                             |
+---------------------------+-----------------------------------------------------------------------+
| Minimum SV Length         | Minimum length of SV to be reported. Default: 50bp                    |
+---------------------------+-----------------------------------------------------------------------+
| Minimum Mapping Quality   | Minimum mapping quality of alignment to be taken into account.        |
|                           | Default: 20                                                           |
+---------------------------+-----------------------------------------------------------------------+
| Minimum alignment length  | Reads with less length aligned will be ignored. Default 100           |
+---------------------------+-----------------------------------------------------------------------+


Clustering Options
------------------


+----------------------------------------+-----------------------------------------------------------------------+
| Parameter                              | Description                                                           |
+========================================+=======================================================================+
| Cluster bin size                       | Initial cluster bin size. Default 100                                 |
+----------------------------------------+-----------------------------------------------------------------------+
| Cluster Multiplier                     | Multiplier for SV start position standard deviation criterion in      |
|                                        | cluster merging [2.5]                                                 |
+----------------------------------------+-----------------------------------------------------------------------+


Advanced Options
----------------


+----------------------------------------+------------------------------------------------------------------------------+
| Parameter                              | Description                                                                  |
+========================================+==============================================================================+
| Mosaic                                 | Set Sniffles run mode to detect rare, somatic and mosaic SVs (default: False)|
+----------------------------------------+------------------------------------------------------------------------------+


Output
******

VCF Info field description

Sniffles report multiple information in the Info field. The entries are delimited by:

+-------------------+------------------------------------------------------------------------------------------------------+
| IMPRECISE/PRECISE | Indicates the confidence of the exact breakpoint positions (bp).                                     |
+-------------------+------------------------------------------------------------------------------------------------------+
| CHR2=             | The chromosome of the second breakpoint of the SV reported.                                          |
+-------------------+------------------------------------------------------------------------------------------------------+
| END=              | The position (bp) of the second breakpoint of the SV reported.                                       |
+-------------------+------------------------------------------------------------------------------------------------------+
| ZMW=              | For PacBio based reads, shows the number of ZMW that support the SV.                                 |
+-------------------+------------------------------------------------------------------------------------------------------+
| SVTYPE=           | The type of the SV. (see Alt field above)                                                            |
+-------------------+------------------------------------------------------------------------------------------------------+
| SUPTYPE=          | Indicates what evidence supports the SVs (SR: Split Reads, AL: Alignment, NR: Noisy Region).         |
+-------------------+------------------------------------------------------------------------------------------------------+
| STD_quant_start=  | The standard deviation of the start breakpoints.                                                     |
+-------------------+------------------------------------------------------------------------------------------------------+
| STD_quant_stop=   | The standard deviation of the stop breakpoints.                                                      |
+-------------------+------------------------------------------------------------------------------------------------------+
| RNAMES=           | A comma separated list of read names that support the SV event. Controlled by -n Parameter.          |
+-------------------+------------------------------------------------------------------------------------------------------+
| SVLEN=            | Indicates the length of SVs.                                                                         |
+-------------------+------------------------------------------------------------------------------------------------------+
| STRANDS=          | Strand information at both breakpoints.                                                              |
+-------------------+------------------------------------------------------------------------------------------------------+
| SEQ=              | If reportable shows the sequence of the indels.                                                      |
+-------------------+------------------------------------------------------------------------------------------------------+
| RE=               | Number of reads supporting the variance.                                                             |
+-------------------+------------------------------------------------------------------------------------------------------+
| AF=               | Allele frequency (only if run with –genotype)                                                        |
+-------------------+------------------------------------------------------------------------------------------------------+

Source: https://github.com/fritzsedlazeck/Sniffles
    ]]>
    </help>
    <citations>
        <citation type="doi">10.1038/s41587-023-02024-y</citation>
    </citations>
</tool>