name: Publish release

# Portal does not deploy itself. Cutting a version is deliberate:
# `cargo release <level>` bumps Cargo.toml, commits, tags v<semver>,
# and pushes; this workflow reacts to the tag and publishes the
# artifact as a Gitea release. Each content repo (uhhm/questions,
# redoal/questions) pins PORTAL_RELEASE to one of these tags in its
# own deploy workflow - bumping the pin there is what rolls a version
# out to a site. Plain main pushes only run test.yml.

on:
  push:
    tags: ["v*"]

jobs:
  publish:
    runs-on: bare
    env:
      # The bare runner's own systemd service intentionally has a minimal
      # PATH/HOME (no rustup default toolchain in reach) - point it at the
      # shared toolchain install directly rather than assuming an ambient
      # dev shell environment.
      CARGO_HOME: /var/local/cargo
      RUSTUP_HOME: /var/local/rustup
      PATH: /var/local/cargo/bin:/usr/local/sbin:/usr/local/bin:/usr/bin
      # Shared with interactive dev builds (see ~/.config/fish/config.fish)
      # so a crate compiled once, by either a manual build or CI, is
      # cached for the other - real cache hits, not just a warm toolchain.
      # SCCACHE_SERVER_PORT deliberately differs from the interactive
      # dev shell's (4227): sccache's server is discovered by a fixed
      # TCP port shared by every local user, so if both contexts used
      # the same port, whichever one's server happened to be running
      # would silently "win" and serve build requests it doesn't have
      # filesystem permission for. Separate ports keep each context's
      # own server answering its own requests; the cache directory
      # (not the server process) is what's actually shared.
      SCCACHE_DIR: /var/local/sccache
      SCCACHE_SERVER_PORT: "4228"
      CARGO_TARGET_DIR: /var/local/cargo-target
      # cargo-leptos's own downloaded tools (wasm-bindgen, wasm-opt) cache
      # under $XDG_CACHE_HOME - left at its default that resolves inside
      # this unit's systemd StateDirectory, files it creates there end up
      # owned by the kernel's overflow "nobody" uid instead of the
      # runner's own dynamic uid (a StateDirectory quirk, not something
      # in our control), so a later run can't execute what an earlier run
      # downloaded. Redirecting it to our own known-good shared dir avoids
      # that entirely.
      XDG_CACHE_HOME: /var/local/leptos-cache
    steps:
      - uses: actions/checkout@v4

      # SITE_NAME is read via option_env! (src/app.rs) - compile-time,
      # not a runtime env var. It is only the last-resort fallback name:
      # each instance's site.yaml (content-driven branding) overrides it,
      # so one artifact serves every site.
      - name: Build
        run: SITE_NAME=${{ vars.PORTAL_SITE_NAME }} cargo leptos build --release

      # cargo-leptos only builds the leptos bin-target ("portal") - the
      # question-lint utility binary needs its own plain cargo build.
      - name: Build question-lint
        run: cargo build --release --bin question_lint --features ssr

      - name: Package
        run: |
          set -euo pipefail
          tag="${{ github.ref_name }}"
          stage=$(mktemp -d)
          cp "$CARGO_TARGET_DIR/release/portal" "$stage/portal"
          cp "$CARGO_TARGET_DIR/release/question_lint" "$stage/question_lint"
          # site-root ("target/site" in Cargo.toml) is project-relative,
          # not affected by CARGO_TARGET_DIR - only the plain `cargo build`
          # outputs (release/, front/) move with that override.
          cp -r target/site "$stage/site"
          tar -C "$stage" -czf "portal-$tag.tar.gz" portal question_lint site
          rm -rf "$stage"

      # The run's own ephemeral token has write access to this repo -
      # no long-lived PAT to manage. The tag already exists (cargo
      # release pushed it), so the release attaches to it; a re-run
      # finds the existing release instead of failing.
      - name: Publish release
        run: |
          set -euo pipefail
          tag="${{ github.ref_name }}"
          api="${{ github.server_url }}/api/v1/repos/${{ github.repository }}"
          auth="Authorization: token ${{ secrets.GITHUB_TOKEN }}"
          subject=$(git log -1 --format=%s)
          body=$(printf '{"tag_name":"%s","name":"%s"}' \
            "$tag" "$tag: $(echo "$subject" | sed 's/"/\\"/g')")
          id=$(curl -sf -X POST -H "$auth" -H 'Content-Type: application/json' \
            -d "$body" "$api/releases" | jq .id) \
            || id=$(curl -sf -H "$auth" "$api/releases/tags/$tag" | jq .id)
          # Replace the asset if a re-run already uploaded one.
          for aid in $(curl -sf -H "$auth" "$api/releases/$id/assets" | jq '.[].id'); do
            curl -sf -X DELETE -H "$auth" "$api/releases/$id/assets/$aid"
          done
          curl -sf -X POST -H "$auth" \
            -F "attachment=@portal-$tag.tar.gz" \
            "$api/releases/$id/assets?name=portal-$tag.tar.gz" > /dev/null
          echo "published $tag"