# Gitea Actions — the live pipeline for this repository.
#
# Gitea Actions speaks GitHub Actions syntax, so this is a near-direct port of
# docs/reference/github-actions-oidc.yml.example (kept as the OIDC reference in
# case the repo ever moves to GitHub; it lives under docs/ rather than
# .github/workflows/ so Gitea can never fall back to it).
#
# ONE REAL DIFFERENCE: Gitea is not an AWS OIDC provider, so there is no role to
# assume. Deploys are designed to authenticate with a SCOPED IAM USER whose key
# lives only in this repository's Gitea secrets. Whether that user and key have
# actually been created is AGENTS.md Q22 — unanswered as of 2026-08-26.
#
# See docs/06-deployment.md for the exact IAM policy — it grants four actions on
# one bucket and one distribution, nothing more. Rotate the key quarterly; OIDC
# would have made that unnecessary.
#
# Requires a Gitea Actions runner registered to this repo or its organisation.

name: Build and deploy

on:
  push:
    branches: [main]
  workflow_dispatch:

concurrency:
  group: deploy-production
  cancel-in-progress: false

jobs:
  build-and-deploy:
    runs-on: ubuntu-latest

    env:
      AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
      AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
      AWS_DEFAULT_REGION: ${{ vars.AWS_REGION }}
      S3_BUCKET: ${{ vars.S3_BUCKET }}
      CLOUDFRONT_DISTRIBUTION_ID: ${{ vars.CLOUDFRONT_DISTRIBUTION_ID }}
      # Job-level so the guard can see it. An empty INTAKE_ENDPOINT does not
      # fail the build - it ships a live contact form posting to nothing.
      INTAKE_ENDPOINT: ${{ vars.INTAKE_ENDPOINT }}

    steps:
      # Runs first, before checkout and before any AWS call, so a
      # misconfiguration costs one second instead of a full build.
      #
      # Repository variables live at Settings -> Actions -> Variables. Gitea
      # only added the `vars` context in 1.21; this instance reports 1.27.2
      # [verified 2026-08-26 - /api/v1/version, AGENTS.md §7], so the guard is
      # belt-and-braces rather than load-bearing. It stays because an unset or
      # mistyped variable degrades the sync target to "s3://" and the run dies
      # obscurely somewhere in the middle, whatever the Gitea version.
      #
      # Covers the deploy-target variables, the intake endpoint, AND the two
      # secrets. The secrets matter most: AGENTS.md Q22 records that nobody has
      # confirmed the IAM user or its key exists, so an unset key is the single
      # likeliest first-run failure - and without this it would burn a whole
      # build before dying at `aws sts get-caller-identity`.
      #
      # Only emptiness is ever tested. No value is echoed, so nothing here can
      # leak a secret into the run log.
      - name: Guard - required variables and secrets are set
        run: |
          missing=''
          [ -n "$AWS_DEFAULT_REGION" ]        || missing="$missing AWS_REGION(var)"
          [ -n "$S3_BUCKET" ]                 || missing="$missing S3_BUCKET(var)"
          [ -n "$CLOUDFRONT_DISTRIBUTION_ID" ] || missing="$missing CLOUDFRONT_DISTRIBUTION_ID(var)"
          [ -n "$INTAKE_ENDPOINT" ]           || missing="$missing INTAKE_ENDPOINT(var)"
          [ -n "$AWS_ACCESS_KEY_ID" ]         || missing="$missing AWS_ACCESS_KEY_ID(secret)"
          [ -n "$AWS_SECRET_ACCESS_KEY" ]     || missing="$missing AWS_SECRET_ACCESS_KEY(secret)"
          if [ -n "$missing" ]; then
            echo "Not set:$missing"
            echo
            echo 'Variables: Settings -> Actions -> Variables.'
            echo 'Secrets:   Settings -> Actions -> Secrets.'
            echo 'See docs/06-deployment.md.'
            echo 'If the variables ARE set, this Gitea predates the vars context (1.21+).'
            exit 1
          fi
          echo 'All required variables and secrets are set.'

      - uses: actions/checkout@v4

      - uses: actions/setup-node@v4
        with:
          node-version-file: .nvmrc
          cache: npm

      - name: Install
        run: npm ci

      - name: Type and template check
        run: npm run check

      - name: Build
        run: npm run build
        env:
          PUBLIC_SITE_URL: https://adr.smlcompany.ca
          # vars, not env — Gitea expression-context support is the very thing
          # the guard above exists to not depend on.
          PUBLIC_INTAKE_ENDPOINT: ${{ vars.INTAKE_ENDPOINT }}
          PUBLIC_BOOKING_URL: ${{ vars.BOOKING_URL }}

      # Some Gitea runner images ship without the AWS CLI. Install if missing.
      - name: Ensure AWS CLI
        run: |
          if ! command -v aws >/dev/null 2>&1; then
            curl -fsSL "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o /tmp/awscliv2.zip
            unzip -q /tmp/awscliv2.zip -d /tmp
            sudo /tmp/aws/install --update
          fi
          aws --version

      - name: Verify credentials
        run: aws sts get-caller-identity

      # Three passes: hashed immutable assets first, then images, HTML last.
      # A visitor must never fetch a new page whose assets have not landed yet.
      - name: Sync hashed assets
        run: |
          aws s3 sync ./dist "s3://${S3_BUCKET}" \
            --exclude "*" \
            --include "_astro/*" --include "fonts/*" \
            --cache-control "public, max-age=31536000, immutable" \
            --no-progress

      - name: Sync images
        run: |
          aws s3 sync ./dist "s3://${S3_BUCKET}" \
            --exclude "*" \
            --include "*.avif" --include "*.webp" --include "*.jpg" \
            --include "*.png" --include "*.svg" \
            --cache-control "public, max-age=604800" \
            --no-progress

      - name: Sync HTML and the rest
        run: |
          aws s3 sync ./dist "s3://${S3_BUCKET}" \
            --exclude "_astro/*" --exclude "fonts/*" \
            --cache-control "public, max-age=0, must-revalidate" \
            --delete --no-progress

      - name: Invalidate CloudFront
        run: |
          aws cloudfront create-invalidation \
            --distribution-id "${CLOUDFRONT_DISTRIBUTION_ID}" \
            --paths "/*"

      - name: Summary
        run: echo "Deployed to https://adr.smlcompany.ca — commit ${GITHUB_SHA:0:7}"