name: Build and publish release

on:
  push:
    branches:
      - main
    tags:
      - '*'
  workflow_dispatch:
    inputs:
      release_tag:
        description: 'GitHub Release tag to publish'
        required: true
        default: '0.7.3'
      source_ref:
        description: 'Source branch/tag/commit to compile'
        required: true
        default: 'main'

permissions:
  contents: write

env:
  ZIG_VERSION: '0.16.0'
  CUSTOM_WEIRDPERFORMANCE_TAG: '0.7.3'

jobs:
  release:
    name: Build DLLs and publish release
    runs-on: ubuntu-latest

    steps:
      - name: Resolve build metadata
        shell: bash
        run: |
          set -euo pipefail
          if [[ "${{ github.event_name }}" == "workflow_dispatch" ]]; then
            echo "RELEASE_TAG=${{ inputs.release_tag }}" >> "$GITHUB_ENV"
            echo "SOURCE_DESCRIPTION=${{ inputs.source_ref }}" >> "$GITHUB_ENV"
          elif [[ "${GITHUB_REF}" == refs/tags/* ]]; then
            echo "RELEASE_TAG=${GITHUB_REF_NAME}" >> "$GITHUB_ENV"
            echo "SOURCE_DESCRIPTION=${GITHUB_REF_NAME}" >> "$GITHUB_ENV"
          else
            echo "RELEASE_TAG=dev" >> "$GITHUB_ENV"
            echo "SOURCE_DESCRIPTION=${GITHUB_SHA}" >> "$GITHUB_ENV"
          fi

      - name: Checkout source
        uses: actions/checkout@v4
        with:
          ref: ${{ github.event_name == 'workflow_dispatch' && inputs.source_ref || github.ref }}
          fetch-depth: 0

      - name: Install Zig
        uses: mlugg/setup-zig@v2
        with:
          version: ${{ env.ZIG_VERSION }}

      - name: Build public DLL variants
        shell: bash
        run: |
          set -euo pipefail
          zig build all-variants -Doptimize=ReleaseSmall \
            -Dweirdperformance=false \
            -Doutline=true \
            -Dframecrash=true \
            -Ddpslog=true

      - name: Collect release DLLs
        shell: bash
        run: |
          set -euo pipefail
          mkdir -p release

          dlls=(
            bigcursor.dll
            clickthrough.dll
            customassets.dll
            dpslog.dll
            framecrash.dll
            healtextfix.dll
            interact.dll
            logsessions.dll
            minimapicons.dll
            outline.dll
            pngscreenshots.dll
            transmogfix.dll
            worldmarkers.dll
          )

          for dll in "${dlls[@]}"; do
            src="zig-out/variants/$dll"
            if [[ ! -s "$src" ]]; then
              echo "Missing expected DLL: $src" >&2
              exit 1
            fi
            cp "$src" "release/$dll"
          done

      - name: Add custom WeirdPerformance v0.7.3
        shell: bash
        run: |
          set -euo pipefail

          api_url="https://codeberg.org/api/v1/repos/Dusk92/WeirdUtils/releases/tags/${CUSTOM_WEIRDPERFORMANCE_TAG}"
          release_json="$(curl --retry 3 --retry-all-errors -fsSL "$api_url")"

          download_url="$(printf '%s' "$release_json" | python3 -c '
          import json, sys
          data = json.load(sys.stdin)
          for asset in data.get("assets", []):
              if asset.get("name", "").lower() == "weirdperformance.dll":
                  print(asset.get("browser_download_url", ""))
                  break
          ')"

          if [[ -z "$download_url" ]]; then
            echo "Could not find weirdperformance.dll in Codeberg release ${CUSTOM_WEIRDPERFORMANCE_TAG}" >&2
            exit 1
          fi

          curl --retry 3 --retry-all-errors -fsSL "$download_url" -o release/weirdperformance.dll

          python3 - <<'PY'
          from pathlib import Path
          p = Path('release/weirdperformance.dll')
          data = p.read_bytes()
          if len(data) < 1024 or data[:2] != b'MZ':
              raise SystemExit('Downloaded weirdperformance.dll is not a valid-looking Windows DLL')
          print(f'Custom WeirdPerformance: {len(data)} bytes, PE header OK')
          PY

      - name: Create checksums and ZIP
        shell: bash
        run: |
          set -euo pipefail
          (
            cd release
            sha256sum *.dll > SHA256SUMS.txt
          )
          zip -j "WeirdUtils-${RELEASE_TAG}.zip" release/*.dll release/SHA256SUMS.txt

      - name: Publish GitHub Release
        if: github.event_name == 'workflow_dispatch' || startsWith(github.ref, 'refs/tags/')
        shell: bash
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          set -euo pipefail

          cat > release-notes.md <<EOF
          WeirdUtils ${RELEASE_TAG}

          - Standard module DLLs are compiled from `${SOURCE_DESCRIPTION}` with Zig ${ZIG_VERSION} in ReleaseSmall mode.
          - The upstream WeirdPerformance variant is intentionally excluded.
          - `weirdperformance.dll` is the custom Dusk-92 v${CUSTOM_WEIRDPERFORMANCE_TAG} build from the Codeberg release.
          - `SHA256SUMS.txt` is included for integrity checks.
          EOF

          if gh release view "$RELEASE_TAG" >/dev/null 2>&1; then
            echo "Release $RELEASE_TAG already exists; replacing assets."
          else
            gh release create "$RELEASE_TAG" \
              --title "WeirdUtils ${RELEASE_TAG}" \
              --notes-file release-notes.md
          fi

          gh release upload "$RELEASE_TAG" \
            release/*.dll \
            release/SHA256SUMS.txt \
            "WeirdUtils-${RELEASE_TAG}.zip" \
            --clobber