<tool id="extract_min_max_lines" name="Extract lines corresponding" version="0.1.0">
    <description>to minimum and maximum values of a column</description>

    <requirements>
    </requirements>

    <stdio>
    </stdio>

    <version_command></version_command>

    <command><![CDATA[
        python $__tool_directory__/extract_min_max_lines.py
            --input_file $input_file
            --output_file $output_file
            --column_id $column_id
            --extraction_type $extraction_type
            --extraction_nb $extraction_nb
    ]]></command>

    <inputs>
        <param name="input_file" type="data" format="tabular,tsv,csv" label="Input file" help="File in tabular format with tab-separated columns (--input_file)"/>

        <param name="column_id" type="data_column" data_ref="input_file" label="Column containing data to extract minimum or maximum values" multiple="false" numerical="true" help="(--column_id)"/>

        <param name="extraction_type" label="Type of values to extract lines" type="select" help="(--extraction_type)">
            <option value="min" selected="True">Minimal values</option>
            <option value="max">Maximal values</option>
        </param>

        <param name="extraction_nb" type="integer" value="10" label="Number of lines to extract" help="(--extraction_nb)"/>
    </inputs>

    <outputs>
        <data name="output_file" format="tabular"
            label="${tool.name} on ${on_string}: Extracted lines" />
    </outputs>

    <tests>
        <test>
            <param name="input_file" value="input_file.tabular"/>
            <param name="column_id" value="3"/>
            <param name="extraction_type" value="min"/>
            <param name="extraction_nb" value="10"/>
            <output name="output_file" file="output_test_col_3_min.tabular"/>
        </test>
        <test>
            <param name="input_file" value="input_file.tabular"/>
            <param name="column_id" value="3"/>
            <param name="extraction_type" value="max"/>
            <param name="extraction_nb" value="10"/>
            <output name="output_file" file="output_test_col_3_max.tabular"/>
        </test>
        <test>
            <param name="input_file" value="input_file.tabular"/>
            <param name="column_id" value="4"/>
            <param name="extraction_type" value="min"/>
            <param name="extraction_nb" value="10"/>
            <output name="output_file" file="output_test_col_4_min.tabular"/>
        </test>
        <test>
            <param name="input_file" value="input_file.tabular"/>
            <param name="column_id" value="4"/>
            <param name="extraction_type" value="max"/>
            <param name="extraction_nb" value="10"/>
            <output name="output_file" file="output_test_col_4_max.tabular"/>
        </test>
    </tests>

    <help><![CDATA[
**What it does**

This tool extract a variable number of lines corresponding to minimum or maximum values of a chosen column.

The file must be in tabular format with tabular separated columns. To chosen column to extract minimum or maximum values must be data columns.
    ]]></help>

    <citations>
    </citations>
</tool>