name: offline-release

on:
  workflow_dispatch:

jobs:
  package-and-deploy:
    runs-on: build-host
    steps:
      - name: Prepare local worktree
        env:
          MAIBOT_REPO_URL: http://127.0.0.1:3000/${{ gitea.repository }}.git
          MAIBOT_REPO_SHA: ${{ gitea.sha }}
        shell: bash
        run: |
          set -euo pipefail

          worktree_root=/tmp/maibot-actions
          worktree="${worktree_root}/${MAIBOT_REPO_SHA}"

          rm -rf "$worktree"
          mkdir -p "$worktree_root"

          git clone --no-checkout "$MAIBOT_REPO_URL" "$worktree"
          git -C "$worktree" checkout --force "$MAIBOT_REPO_SHA"
          git -C "$worktree" clean -dffx

          app_tag="$(git -C "$worktree" rev-parse --short=12 HEAD)"
          printf 'APP_TAG=%s\n' "$app_tag" >> "$GITHUB_ENV"
          printf 'MAIBOT_WORKTREE=%s\n' "$worktree" >> "$GITHUB_ENV"

      - name: Stage release directory
        shell: bash
        run: |
          set -euo pipefail

          release_root="${MAIBOT_RELEASE_ROOT:-/srv/maibot/releases}"
          case "$release_root" in
            /srv/maibot/releases|/srv/maibot/releases/*) ;;
            *)
              echo "release root must stay under /srv/maibot/releases" >&2
              exit 1
              ;;
          esac

          release_dir="${release_root}/${APP_TAG}"
          rm -rf "$release_dir"
          mkdir -p "$release_dir"
          git -C "$MAIBOT_WORKTREE" archive HEAD | tar -x -C "$release_dir"

          printf 'RELEASE_DIR=%s\n' "$release_dir" >> "$GITHUB_ENV"

      - name: Deploy release
        shell: bash
        run: |
          set -euo pipefail

          runtime_root="${MAIBOT_RUNTIME_ROOT:-/root/maibot-offline}"
          chmod +x "$RELEASE_DIR/deploy/server-maibot/activate-release.sh"
          MAIBOT_RUNTIME_ROOT="$runtime_root" "$RELEASE_DIR/deploy/server-maibot/activate-release.sh" "$RELEASE_DIR"

      - name: Cleanup worktree
        if: ${{ always() }}
        shell: bash
        run: |
          set -euo pipefail

          worktree_root=/tmp/maibot-actions/
          case "${MAIBOT_WORKTREE:-}" in
            ${worktree_root}*)
              rm -rf "$MAIBOT_WORKTREE"
              ;;
          esac