#!/bin/bash

lint_xmls() {
    local xml_file_pattern=$1
    local xml_lint_summary=$2

    if [ "$#" -ne 2 ] ; then
        echo "$0: wrong number of arguments."
        echo "Expected:"
        echo "    $0 xml_file_pattern summary_file_name"
        return 255
    fi

    echo "Running xmllint for pattern '${xml_file_pattern}'"
    echo "Current directory is '$(pwd)'"
    echo "Result will be stored in ${xml_lint_summary}"
    echo

    echo "file,xmllint_status" > ${xml_lint_summary}

    local files_list=$(find . -name "${xml_file_pattern}")
    local nb_files=$(echo "${files_list}" | wc -l)
    local nb_ok=0
    local nb_errors=0

    echo "${nb_files} files will be checked"

    while IFS= read -d $'\n' -r xml_file ; do
        xmllint --noout ${xml_file}
        local xmllint_result=$?
        echo "${xml_file},${xmllint_result}" >> ${xml_lint_summary}
        if [ ${xmllint_result} -eq 0 ] ; then
            echo "'${xml_file}' is OK"
            ((nb_ok++))
        else
            echo "'${xml_file}' has errors"
            ((nb_errors++))
        fi
    done <<< "${files_list}"

    echo "Results of xmllint for pattern '${xml_file_pattern}'"
    echo "    Checked: ${nb_files}"
    echo "    OK:      ${nb_ok}"
    echo "    Errors:  ${nb_errors}"

    return ${nb_errors}

}