جمّع LaTeX في GitLab CI/CD

# .gitlab-ci.yml
stages:
  - build

compile-latex:
  stage: build
  image: alpine:latest
  before_script:
    - apk add --no-cache curl jq
  script:
    - |
      curl -X POST https://api.formatex.io/api/v1/compile \
        -H "X-API-Key: $FORMATEX_API_KEY" \
        -H "Content-Type: application/json" \
        -d "{\"latex\": $(cat main.tex | jq -Rs .), \"engine\": \"pdflatex\"}" \
        --output output.pdf
  artifacts:
    paths:
      - output.pdf
    expire_in: 1 week
  only:
    - main
    - merge_requests

# .gitlab-ci.yml — advanced with matrix and error handling
stages:
  - validate
  - build
  - publish

variables:
  FORMATEX_API_URL: "https://api.formatex.io/api/v1"

.compile-template: &compile
  image: alpine:latest
  before_script:
    - apk add --no-cache curl jq
  script:
    - |
      RESPONSE=$(curl -s -w "\n%{http_code}" \
        -X POST "$FORMATEX_API_URL/compile" \
        -H "X-API-Key: $FORMATEX_API_KEY" \
        -H "Content-Type: application/json" \
        -d "{\"latex\": $(cat $TEX_FILE | jq -Rs .), \"engine\": \"$ENGINE\"}")
      
      HTTP_CODE=$(echo "$RESPONSE" | tail -n1)
      if [ "$HTTP_CODE" != "200" ]; then
        echo "Error: $(echo "$RESPONSE" | head -n-1)"
        exit 1
      fi
      echo "$RESPONSE" | head -n-1 > "$OUTPUT_FILE"
  artifacts:
    paths:
      - "*.pdf"
    expire_in: 30 days

compile-main:
  <<: *compile
  stage: build
  variables:
    TEX_FILE: main.tex
    ENGINE: pdflatex
    OUTPUT_FILE: main.pdf

compile-presentation:
  <<: *compile
  stage: build
  variables:
    TEX_FILE: presentation.tex
    ENGINE: xelatex
    OUTPUT_FILE: presentation.pdf

pages:
  stage: publish
  script:
    - mkdir -p public
    - cp *.pdf public/
  artifacts:
    paths:
      - public
  only:
    - main