# SPDX-License-Identifier: AGPL-3.0-only
# SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
name: Flatpak

# Crafter.Build's workflow, for this app. One job, three outcomes:
#   pull request  -> build the Flatpak, run the suite inside it, smoke-test it
#   push master   -> also publish it as the `beta` branch of the Catcrafts
#                    repo and refresh the rolling `latest` release
#   tag X.Y.Z     -> publish it as `stable` and create release X.Y.Z
#
# It builds on the Crafter.Build Flatpak (`base:` in the manifest), whose
# crafter-build and LLVM compile this project, so the runner installs that
# base from the same repo it publishes into.
#
# The `crafter-flatpak` label is the privileged runner on the Hetzner box
# (bubblewrap needs it) with the Sdk install, the flatpak-builder state, the
# repo's web root and the signing key mounted. It is registered to
# Crafter.Build alone today: until this repository has such a runner, this
# workflow does not run.
#
# Both apps publish into one repo: the publish step holds
# /srv/flatpak/.publish.lock, which protects anything once Crafter.Build's
# workflow takes it too. This one writes its own flatpakref and never the
# shared catcrafts.flatpakrepo, which Crafter.Build's workflow owns.
on:
  pull_request:
    branches: [master]
  push:
    branches: [master]
    tags: ['[0-9]*.[0-9]*.[0-9]*']
  workflow_dispatch:

env:
  APP_ID: net.catcrafts.CrafterReview
  MANIFEST: packaging/flatpak/net.catcrafts.CrafterReview.yaml
  CI_MANIFEST: packaging/flatpak/ci-manifest.yaml
  METAINFO: packaging/flatpak/net.catcrafts.CrafterReview.metainfo.xml
  RUNTIME: org.freedesktop.Sdk//26.08
  BASE: net.catcrafts.CrafterBuild//stable
  REPO_DIR: /srv/flatpak/repo
  WEB_DIR: /srv/flatpak

jobs:
  flatpak:
    runs-on: crafter-flatpak
    container:
      image: archlinux:latest
      options: >-
        -v crafter-flatpak-system:/var/lib/flatpak
        -v crafter-flatpak-builder:/root/.cache/flatpak-builder
        -v /var/www/flatpak:/srv/flatpak
        -v /etc/crafter-flatpak:/run/crafter-flatpak:ro
    steps:
      - name: Install tools
        run: |
          pacman-key --init
          pacman-key --populate archlinux
          pacman -Sy --noconfirm --needed archlinux-keyring
          pacman -Syu --noconfirm --needed flatpak flatpak-builder ccache git jq gnupg go-yq ostree python util-linux
          git config --global --add safe.directory '*'

      - name: Sdk and base app
        # A no-op once the volume is warm; `update` follows point releases
        # and a new stable base.
        run: |
          flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
          flatpak remote-add --if-not-exists catcrafts https://flatpak.catcrafts.net/catcrafts.flatpakrepo
          flatpak install -y --noninteractive flathub "$RUNTIME"
          flatpak install -y --noninteractive catcrafts "$BASE"
          flatpak update -y --noninteractive

      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          persist-credentials: true

      - name: Version and channel
        id: meta
        run: |
          set -eu
          if [ "${GITHUB_REF_TYPE}" = tag ]; then
            version="$GITHUB_REF_NAME"
            branch=stable
            # The metainfo's newest release is the release notes and must be
            # the version being tagged.
            top=$(grep -m1 -oP '<release version="\K[^"]+' "$METAINFO")
            if [ "$top" != "$version" ]; then
              echo "metainfo lists $top as the newest release, but the tag is $version" >&2
              exit 1
            fi
          else
            # Named after the release it follows, as a checkout describes
            # itself: 1.0.0-3-g21746b1 is three commits past 1.0.0.
            described=$(git describe --tags --always --exclude=latest)
            case "$described" in
              [0-9]*.[0-9]*.[0-9]*) version="$described" ;;
              *) version="0.0.0-dev+$described" ;;
            esac
            branch=beta
          fi
          echo "version=$version" >> "$GITHUB_OUTPUT"
          echo "branch=$branch" >> "$GITHUB_OUTPUT"
          echo "version $version, flatpak branch $branch"

      - name: Build
        # The manifest is rewritten beside the original so its relative
        # source paths still resolve. The suite runs inside this build.
        env:
          VERSION: ${{ steps.meta.outputs.version }}
        run: |
          set -eu
          yq '(.modules[] | select(.name == "crafter-review") | ."build-options".env.CRAFTER_REVIEW_VERSION) = strenv(VERSION)' "$MANIFEST" > "$CI_MANIFEST"
          grep -n 'CRAFTER_REVIEW_VERSION' "$CI_MANIFEST"
          flatpak-builder --force-clean --ccache --disable-rofiles-fuse \
            --state-dir=/root/.cache/flatpak-builder \
            --repo=repo --default-branch="${{ steps.meta.outputs.branch }}" \
            build-dir "$CI_MANIFEST"

      - name: Smoke test
        # In the app as it ships: the version and the home, every library
        # resolved and none through a RUNPATH outside /app, the bundled
        # tools, and a freeze and a dry run on a scratch repository (a dry run
        # joins no board and takes no lifetime lock, so it runs inside
        # `flatpak build`; it exits 2 by design).
        env:
          VERSION: ${{ steps.meta.outputs.version }}
        run: |
          set -eu
          shown=$(flatpak build build-dir crafter-review --version)
          printf '%s\n' "$shown"
          printf '%s\n' "$shown" | grep -qF "crafter-review $VERSION (prompt v"
          flatpak build build-dir sh -euc '
            for f in /app/bin/crafter-review /app/lib/node/bin/node; do
              if ldd "$f" | grep "not found"; then echo "$f: a library is missing" >&2; exit 1; fi
              bad=$(readelf -d "$f" | sed -n "s/.*(R[UN]*PATH).*\[\(.*\)\]/\1/p" | tr ":" "\n" | grep -v -e "^\$" -e "^/app" -e "^\\\$ORIGIN" || true)
              if [ -n "$bad" ]; then echo "$f: a RUNPATH outside /app: $bad" >&2; exit 1; fi
            done
            rg --version | head -1
            node --version
            npx --version
            git --version'
          flatpak build build-dir sh -euc '
            export GIT_CONFIG_GLOBAL=/dev/null GIT_CONFIG_SYSTEM=/dev/null
            export GIT_AUTHOR_NAME=CI GIT_AUTHOR_EMAIL=ci@catcrafts.net GIT_COMMITTER_NAME=CI GIT_COMMITTER_EMAIL=ci@catcrafts.net
            cd "$(mktemp -d)"
            git init -q -b main .
            git config user.email ci@catcrafts.net
            printf ".review-gates/push/\n.review-gates/trees/\n" > .gitignore
            mkdir .review-gates
            printf "{\"lenses\": {\"repo-better-solution\": {\"run\": true}, \"repo-bug-prover\": {\"run\": true}, \"repo-security\": {\"run\": true}, \"repo-facts\": {\"run\": true}}}\n" > .review-gates/config.json
            git add -A
            git commit -q -m base
            base=$(git rev-parse HEAD)
            printf "def hello(name):\n    return name\n" > hello.py
            git add hello.py
            git commit -q -m "add hello"
            crafter-review freeze --slug ci --base "$base"
            hash=$(jq -r .hash .review-gates/push/ci/freeze.json)
            code=0
            crafter-review run --artifact .review-gates/push/ci --hash "$hash" --base "$base" --trees . \
              --dispositions .review-gates/push/ci/gate-state/dispositions.json --scratch "$PWD/scratch" --dry-run || code=$?
            if [ "$code" != 2 ]; then echo "the dry run exited $code, not 2" >&2; exit 1; fi
            ls scratch/*-dry/prompts | head -3'

      # Everything below publishes and only runs on master and on tags.
      - name: Bundle
        if: github.event_name != 'pull_request'
        run: |
          mkdir -p dist
          flatpak build-bundle repo "dist/crafter-review-${{ steps.meta.outputs.version }}.flatpak" "$APP_ID" "${{ steps.meta.outputs.branch }}"
          cp packaging/flatpak/net.catcrafts.CrafterReview.flatpakref dist/
          (cd dist && sha256sum * > SHA256SUMS)
          ls -la dist

      - name: Upload bundle
        if: github.event_name != 'pull_request'
        uses: actions/upload-artifact@v3
        with:
          name: crafter-review-${{ steps.meta.outputs.version }}
          path: dist/*.flatpak
          if-no-files-found: error

      - name: Publish to the Catcrafts repo
        if: github.event_name != 'pull_request'
        run: |
          set -eu
          if [ ! -s /run/crafter-flatpak/signing-key.asc ] || [ ! -s /run/crafter-flatpak/key-id ]; then
            echo "no signing key under /etc/crafter-flatpak on the runner host (Crafter.Build's AGENTS.md, CI and publishing)" >&2
            exit 1
          fi
          export GNUPGHOME=$(mktemp -d)
          gpg --batch --quiet --import /run/crafter-flatpak/signing-key.asc
          FLATPAK_GPG_KEY_ID=$(cat /run/crafter-flatpak/key-id)
          # One publish at a time into the repo both apps share: a commit and
          # the summary update of one workflow never interleave with the
          # other's.
          exec 9> "$WEB_DIR/.publish.lock"
          flock 9
          [ -f "$REPO_DIR/config" ] || ostree init --repo="$REPO_DIR" --mode=archive
          flatpak build-commit-from --src-repo=repo \
            --gpg-sign="$FLATPAK_GPG_KEY_ID" --gpg-homedir="$GNUPGHOME" \
            "$REPO_DIR" "app/$APP_ID/x86_64/${{ steps.meta.outputs.branch }}"
          flatpak build-update-repo --gpg-sign="$FLATPAK_GPG_KEY_ID" --gpg-homedir="$GNUPGHOME" \
            --generate-static-deltas --prune "$REPO_DIR"
          # This app's ref file only: catcrafts.flatpakrepo is Crafter.Build's.
          key=$(gpg --export "$FLATPAK_GPG_KEY_ID" | base64 --wrap=0)
          sed "s|GPGKey=.*|GPGKey=$key|" packaging/flatpak/net.catcrafts.CrafterReview.flatpakref > "$WEB_DIR/net.catcrafts.CrafterReview.flatpakref"
          flock -u 9

      - name: Rolling 'latest' release
        if: github.event_name != 'pull_request' && github.ref_type != 'tag'
        run: |
          git config user.email "ci@catcrafts.net"
          git config user.name "Crafter Review CI"
          git tag -f latest
          git push origin latest --force
      - name: Publish rolling 'latest' release
        if: github.event_name != 'pull_request' && github.ref_type != 'tag'
        uses: https://code.forgejo.org/actions/forgejo-release@v2
        with:
          direction: upload
          url: ${{ github.server_url }}
          repo: ${{ github.repository }}
          tag: latest
          title: Latest master build
          prerelease: true
          override: true
          release-dir: dist
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Release notes
        if: github.ref_type == 'tag'
        run: |
          # The newest <release> block's description as Markdown, the way
          # Crafter.Build's workflow writes its notes.
          python3 - > release-notes.md <<'EOF'
          import xml.etree.ElementTree as ET

          desc = ET.parse("packaging/flatpak/net.catcrafts.CrafterReview.metainfo.xml").getroot().find("releases/release/description")

          def text(el):
              parts = [el.text or ""]
              for child in el:
                  inner = text(child)
                  parts.append({"em": f"*{inner}*", "code": f"`{inner}`"}.get(child.tag, inner))
                  parts.append(child.tail or "")
              return " ".join("".join(parts).split())

          blocks = list(desc)
          out = []
          for i, el in enumerate(blocks):
              heads_list = i + 1 < len(blocks) and blocks[i + 1].tag in ("ul", "ol")
              if el.tag == "p":
                  out.append(f"## {text(el)}" if heads_list else text(el))
              elif el.tag == "ul":
                  out.append("\n".join(f"- {text(li)}" for li in el))
              elif el.tag == "ol":
                  out.append("\n".join(f"{n}. {text(li)}" for n, li in enumerate(el, 1)))
          print("\n\n".join(out))
          print("\nInstall:\n\n    flatpak remote-add --if-not-exists catcrafts https://flatpak.catcrafts.net/catcrafts.flatpakrepo\n    flatpak install catcrafts net.catcrafts.CrafterReview\n")
          EOF
      - name: Publish release
        if: github.ref_type == 'tag'
        uses: https://code.forgejo.org/actions/forgejo-release@v2
        with:
          direction: upload
          url: ${{ github.server_url }}
          repo: ${{ github.repository }}
          tag: ${{ github.ref_name }}
          title: crafter-review ${{ github.ref_name }}
          release-notes-file: release-notes.md
          release-dir: dist
          token: ${{ secrets.GITHUB_TOKEN }}