# Reusable GitLab CI template for the KoSIT validator.
#
# Include it and extend the hidden job:
#
#   include:
#     - remote: "https://raw.githubusercontent.com/itplr-kosit/validator/<ref>/gitlab/validator.gitlab-ci.yml"
#
#   validate-invoices:
#     extends: .kosit-validate
#     variables:
#       KOSIT_CONFIGURATION_URL: "https://github.com/itplr-kosit/validator-configuration-xrechnung/releases/download/v2026-01-31/xrechnung-3.0.2-validator-configuration-2026-01-31.zip"
#       KOSIT_FILES: "invoices/"
#
# Variables (mirroring the GitHub Action inputs):
#   KOSIT_VERSION                  validator release, default 1.6.2
#   KOSIT_CHECKSUM                 optional SHA-256 of the validator jar
#   KOSIT_CONFIGURATION_URL        URL of a configuration zip, or
#   KOSIT_CONFIGURATION_DIR        path to an unpacked configuration
#   KOSIT_CONFIGURATION_CHECKSUM   optional SHA-256 of the configuration zip
#   KOSIT_FILES                    file, directory or glob of XML documents
#   KOSIT_REPORT_DIR               report output directory, default validator-reports

.kosit-validate:
  image: eclipse-temurin:21-jre
  variables:
    KOSIT_VERSION: "1.6.2"
    KOSIT_CHECKSUM: ""
    KOSIT_CONFIGURATION_URL: ""
    KOSIT_CONFIGURATION_DIR: ""
    KOSIT_CONFIGURATION_CHECKSUM: ""
    KOSIT_FILES: ""
    KOSIT_REPORT_DIR: "validator-reports"
  script:
    - |
      set -euo pipefail
      apt-get update -qq >/dev/null && apt-get install -qqy --no-install-recommends curl unzip >/dev/null

      verify() {
        echo "$1  $2" | sha256sum -c - >/dev/null
      }

      jar="validator-$KOSIT_VERSION-standalone.jar"
      if [ ! -f "$jar" ]; then
        curl -fsSL "https://github.com/itplr-kosit/validator/releases/download/v$KOSIT_VERSION/$jar" -o "$jar"
      fi
      if [ -n "$KOSIT_CHECKSUM" ]; then verify "$KOSIT_CHECKSUM" "$jar"; fi

      if [ -n "$KOSIT_CONFIGURATION_URL" ]; then
        config_dir="kosit-configuration"
        if [ ! -f "$config_dir/scenarios.xml" ]; then
          curl -fsSL "$KOSIT_CONFIGURATION_URL" -o configuration.zip
          if [ -n "$KOSIT_CONFIGURATION_CHECKSUM" ]; then verify "$KOSIT_CONFIGURATION_CHECKSUM" configuration.zip; fi
          unzip -o -q configuration.zip -d "$config_dir"
        fi
      else
        config_dir="$KOSIT_CONFIGURATION_DIR"
      fi
      test -f "$config_dir/scenarios.xml"

      files=""
      if [ -d "$KOSIT_FILES" ]; then
        files="$(find "$KOSIT_FILES" -name '*.xml' -type f | sort)"
      else
        files="$(ls $KOSIT_FILES)"
      fi
      test -n "$files"

      mkdir -p "$KOSIT_REPORT_DIR"
      rejected=0
      for f in $files; do
        if java -jar "$jar" -s "$config_dir/scenarios.xml" -r "$config_dir" -o "$KOSIT_REPORT_DIR" "$f"; then
          echo "PASS  $f"
        else
          rejected=$((rejected + 1))
          echo "FAIL  $f"
        fi
      done
      test "$rejected" -eq 0
  artifacts:
    when: always
    paths:
      - $KOSIT_REPORT_DIR