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

# Every push to master is a release (2026-11-02: no rolling `beta` or
# `latest` builds). Two jobs, by trust, the way imsd-messages' workflow
# splits them, both on the Catcrafts organisation's privileged `flatpak`
# runner (bubblewrap needs the privilege):
#   check    -> a pull request or a run by hand on another branch: build the
#               Flatpak, run the suite inside it, smoke-test it - cold, with
#               no host volume, since the job runs as root in a privileged
#               container and must reach neither the shared installation nor
#               the published repository or its key
#   publish  -> master, pushed or run by hand: the same, then publish it as
#               `stable` and cut release X.Y.Z, the metainfo's newest
#               <release>: its tag at the pushed commit and its notes. A
#               version that is released already fails the job before
#               anything is built or published. It mounts the volumes
#               imsd-messages' publish job mounts but its cache: the
#               crafter-build installation the publish jobs share
#               (crafter-flatpak-org-system: crafter-build //stable and its
#               runtime), /var/www/flatpak (the published repository) and
#               /etc/crafter-flatpak (its signing key, which never enters the
#               forge). flatpak-builder's state stays in the workspace, so
#               every run builds cold.
#
# It builds on the Crafter.Build Flatpak (`base:` in the manifest), whose
# crafter-build and LLVM compile this project, so a job installs that base
# from the same repo it publishes into.
#
# 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]
  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:
  check:
    if: "!(github.event_name != 'pull_request' && github.ref == 'refs/heads/master')"
    runs-on: flatpak
    container:
      image: archlinux:latest
    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 git jq gnupg go-yq ostree python util-linux
          git config --global --add safe.directory '*'

      - name: Sdk and base app
        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"

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

      - name: Version
        id: meta
        run: |
          set -eu
          version=$(grep -m1 -oP '<release version="\K[^"]+' "$METAINFO")
          echo "version=$version" >> "$GITHUB_OUTPUT"
          echo "version $version"

      - 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 --disable-rofiles-fuse \
            --state-dir=.flatpak-builder \
            --repo=repo --default-branch=stable \
            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 "{\"modes\": {\"commits\": {\"lenses\": [\"repo-better-solution\", \"repo-bug-prover\", \"repo-security\", \"repo-facts\"]}}}\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'

  publish:
    if: github.event_name != 'pull_request' && github.ref == 'refs/heads/master'
    runs-on: flatpak
    container:
      image: archlinux:latest
      options: >-
        -v crafter-flatpak-org-system:/var/lib/flatpak
        -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 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 shared installation holds them; `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
        id: meta
        run: |
          set -eu
          # The metainfo's newest release is the version and its notes. It
          # must be new: its tag must not exist yet, and a lookup that cannot
          # tell stops the job as well.
          version=$(grep -m1 -oP '<release version="\K[^"]+' "$METAINFO")
          code=0
          git ls-remote --exit-code --tags origin "refs/tags/$version" > /dev/null || code=$?
          case "$code" in
            0) echo "the metainfo's newest release, $version, is released already: a push to master names a new <release> in $METAINFO" >&2; exit 1 ;;
            2) ;;
            *) echo "git ls-remote exited $code: cannot tell whether $version is released" >&2; exit 1 ;;
          esac
          echo "version=$version" >> "$GITHUB_OUTPUT"
          echo "version $version"

      - 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 --disable-rofiles-fuse \
            --state-dir=.flatpak-builder \
            --repo=repo --default-branch=stable \
            build-dir "$CI_MANIFEST"

      - name: Smoke test
        # As the check job's.
        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 "{\"modes\": {\"commits\": {\"lenses\": [\"repo-better-solution\", \"repo-bug-prover\", \"repo-security\", \"repo-facts\"]}}}\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'

      - name: Bundle
        run: |
          mkdir -p dist
          flatpak build-bundle repo "dist/crafter-review-${{ steps.meta.outputs.version }}.flatpak" "$APP_ID" stable
          cp packaging/flatpak/net.catcrafts.CrafterReview.flatpakref dist/
          (cd dist && sha256sum * > SHA256SUMS)
          ls -la dist

      - name: Upload bundle
        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
        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/$APP_ID/x86_64/stable"
          flatpak build-update-repo --gpg-sign="$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: Tag the release
        run: |
          # The release's tag at the pushed commit. Never forced: a tag that
          # appeared since the version check fails the push.
          git tag "${{ steps.meta.outputs.version }}" "$GITHUB_SHA"
          git push origin "refs/tags/${{ steps.meta.outputs.version }}"

      - name: Release notes
        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
        uses: https://code.forgejo.org/actions/forgejo-release@v2
        with:
          direction: upload
          url: ${{ github.server_url }}
          repo: ${{ github.repository }}
          tag: ${{ steps.meta.outputs.version }}
          title: crafter-review ${{ steps.meta.outputs.version }}
          release-notes-file: release-notes.md
          release-dir: dist
          token: ${{ secrets.GITHUB_TOKEN }}