name: Build and publish 3D Architecture Wizzard documentation

on:
  push:
    branches: [test]
  pull_request:
    branches: [test]

jobs:
  build:
    runs-on: ubuntu-latest
    container: node:20-bookworm
    steps:
      - name: Checkout exact revision
        shell: bash
        env:
          GIT_AUTH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          REVISION: ${{ gitea.event.pull_request.head.sha || gitea.sha }}
        run: |
          set -euo pipefail
          test -n "$GIT_AUTH_TOKEN"
          test -n "$REVISION"
          git init .
          git remote add origin '${{ gitea.server_url }}/${{ gitea.repository }}.git'
          git -c http.extraheader="Authorization: token $GIT_AUTH_TOKEN" fetch --depth=1 origin "$REVISION"
          git checkout --detach FETCH_HEAD
          test "$(git rev-parse HEAD)" = "$REVISION"
      - name: Install pnpm
        run: npm install --global pnpm@10.15.1
      - name: Install dependencies
        run: pnpm install --frozen-lockfile
      - name: Validate and build
        run: pnpm validate
      - name: Verify publication contract
        shell: bash
        run: |
          set -euo pipefail
          test -f build/index.html
          grep -Fq '3DARCH-PORTAL-KICKOFF-2026-08-31' build/index.html
          find build -maxdepth 1 -type f -name 'search-index*.json' -size +0c | grep -q .
      - name: Publish to Gondor Pages
        if: gitea.event_name == 'push' && gitea.ref == 'refs/heads/test'
        shell: bash
        env:
          REVISION: ${{ gitea.sha }}
        run: |
          set -euo pipefail
          ORG_REPO='${{ gitea.repository }}'
          case "$ORG_REPO" in */*) ;; *) echo "invalid repository slug: $ORG_REPO" >&2; exit 1;; esac
          case "$ORG_REPO" in *..*|/*|*/|*//* ) echo "unsafe repository slug: $ORG_REPO" >&2; exit 1;; esac
          test -f build/index.html
          pages_root='/gondor-v1-gitea-pages'
          mountpoint -q "$pages_root" || { echo "$pages_root is not the persistent Pages mount" >&2; exit 1; }
          destination="$pages_root/$ORG_REPO"
          destination_parent="${destination%/*}"
          repository_name="${destination##*/}"
          staging="$destination_parent/.${repository_name}.staging-$REVISION"
          previous="$destination_parent/.${repository_name}.previous-$REVISION"
          rm -rf -- "$staging" "$previous"
          mkdir -p "$staging"
          cp -a build/. "$staging/"
          grep -Fq '3DARCH-PORTAL-KICKOFF-2026-08-31' "$staging/index.html"
          if test -e "$destination"; then mv -- "$destination" "$previous"; fi
          mv -- "$staging" "$destination"
          rm -rf -- "$previous"