---
# workflow_vars.yml
# Exercises workflow:rules:variables: injection.
# The matching workflow rule sets DEPLOY_TARGET; job rules use it.
#
# Expected behaviour per context:
#   (no context)       → all jobs active (no context evaluation)
#   --branch main      → deploy-prod active, deploy-staging skipped
#   --branch develop   → deploy-prod skipped, deploy-staging active
#   --branch feat/x    → deploy-prod skipped, deploy-staging skipped (manual)

stages:
  - build
  - deploy

variables:
  DEPLOY_TARGET:
    value: ""
    description: "Deployment target — set by workflow rules"

workflow:
  rules:
    - if: '$CI_COMMIT_BRANCH == "main"'
      variables:
        DEPLOY_TARGET: production
    - if: '$CI_COMMIT_BRANCH == "develop"'
      variables:
        DEPLOY_TARGET: staging
    - when: always

build:
  stage: build
  script: make build
  rules:
    - when: always

deploy-prod:
  stage: deploy
  script: make deploy ENV=production
  rules:
    - if: '$DEPLOY_TARGET == "production"'
      when: on_success
    - when: never

deploy-staging:
  stage: deploy
  script: make deploy ENV=staging
  rules:
    - if: '$DEPLOY_TARGET == "staging"'
      when: on_success
    - when: never