name: Generate cache-build key
description: "Generate the cache key for production build caching"
inputs:
  branch_key:
    required: true
    description: "Branch key for cache scoping (e.g., github.head_ref for PRs)"
outputs:
  key:
    description: "The generated cache key"
    value: ${{ steps.generate-key.outputs.key }}
runs:
  using: "composite"
  steps:
    - name: Generate cache key
      id: generate-key
      shell: bash
      env:
        CACHE_NAME: prod-build
        BRANCH_KEY: ${{ inputs.branch_key }}
        LOCKFILE_HASH: ${{ hashFiles('yarn.lock') }}
        SOURCE_HASH: ${{ hashFiles('apps/**/**.[jt]s', 'apps/**/**.[jt]sx', 'apps/**/*.json', 'apps/**/*.css', 'packages/**/**.[jt]s', 'packages/**/**.[jt]sx', 'packages/prisma/schema.prisma', 'packages/prisma/migrations/**/*.sql', '!**/node_modules/**', '!packages/prisma/generated/**', '!packages/prisma/client/**', '!packages/prisma/zod/**', '!packages/kysely/**') }}
      run: |
        echo "key=${CACHE_NAME}-${BRANCH_KEY}-${LOCKFILE_HASH}-${SOURCE_HASH}" >> $GITHUB_OUTPUT