name: Build Release

on:
  push:
    tags:
      - 'v*'

jobs:
  # ── Create the release first (shared by all build jobs) ────
  create-release:
    runs-on: ubuntu-latest
    outputs:
      release_id: ${{ steps.create.outputs.release_id }}
    steps:
      - name: Create Gitea release
        id: create
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          TAG="${{ gitea.ref_name }}"
          BASE_URL="${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}"

          IS_PRE="false"
          if echo "$TAG" | grep -qE '(alpha|beta|rc)'; then
            IS_PRE="true"
          fi

          # Build registry path for Docker instructions
          SERVER_HOST=$(echo "${{ gitea.server_url }}" | sed -E 's|https?://||')
          REPO=$(echo "${{ gitea.repository }}" | tr '[:upper:]' '[:lower:]')
          DOCKER_IMAGE="${SERVER_HOST}/${REPO}"

          # Build release body via Python to avoid YAML escaping issues
          BODY_JSON=$(python3 -c "
          import json, sys
          tag = '$TAG'
          image = '$DOCKER_IMAGE'
          body = f'''## Downloads

          | Platform | File | Description |
          |----------|------|-------------|
          | Windows (installer) | \`LedGrab-{tag}-setup.exe\` | Install with Start Menu shortcut, optional autostart, uninstaller |
          | Windows (portable) | \`LedGrab-{tag}-win-x64.zip\` | Unzip anywhere, run LedGrab.bat |
          | Linux | \`LedGrab-{tag}-linux-x64.tar.gz\` | Extract, run ./run.sh |
          | Docker | See below | docker pull + docker run |

          After starting, open **http://localhost:8080** in your browser.

          ### Docker

          \`\`\`bash
          docker pull {image}:{tag}
          docker run -d --name ledgrab -p 8080:8080 -v ledgrab-data:/app/data {image}:{tag}
          \`\`\`

          ### First-time setup

          1. Change the default API key in config/default_config.yaml
          2. Open http://localhost:8080 and discover your WLED devices
          3. See INSTALLATION.md for detailed configuration
          '''
          import textwrap
          print(json.dumps(textwrap.dedent(body).strip()))
          ")

          RELEASE=$(curl -s -X POST "$BASE_URL/releases" \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/json" \
            -d "{
              \"tag_name\": \"$TAG\",
              \"name\": \"LedGrab $TAG\",
              \"body\": $BODY_JSON,
              \"draft\": false,
              \"prerelease\": $IS_PRE
            }")

          RELEASE_ID=$(echo "$RELEASE" | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")
          echo "release_id=$RELEASE_ID" >> "$GITHUB_OUTPUT"
          echo "Created release ID: $RELEASE_ID"

  # ── Windows portable ZIP (cross-built from Linux) ─────────
  build-windows:
    needs: create-release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install system dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends zip libportaudio2 nsis msitools

      - name: Cross-build Windows distribution
        run: |
          chmod +x build-dist-windows.sh
          ./build-dist-windows.sh "${{ gitea.ref_name }}"

      - name: Upload build artifacts
        uses: actions/upload-artifact@v3
        with:
          name: LedGrab-${{ gitea.ref_name }}-win-x64
          path: |
            build/LedGrab-*.zip
            build/LedGrab-*-setup.exe
          retention-days: 90

      - name: Attach assets to release
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          RELEASE_ID="${{ needs.create-release.outputs.release_id }}"
          BASE_URL="${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}"

          # Upload ZIP
          ZIP_FILE=$(ls build/LedGrab-*.zip | head -1)
          if [ -f "$ZIP_FILE" ]; then
            curl -s -X POST \
              "$BASE_URL/releases/$RELEASE_ID/assets?name=$(basename "$ZIP_FILE")" \
              -H "Authorization: token $GITEA_TOKEN" \
              -H "Content-Type: application/octet-stream" \
              --data-binary "@$ZIP_FILE"
            echo "Uploaded: $(basename "$ZIP_FILE")"
          fi

          # Upload installer
          SETUP_FILE=$(ls build/LedGrab-*-setup.exe 2>/dev/null | head -1)
          if [ -f "$SETUP_FILE" ]; then
            curl -s -X POST \
              "$BASE_URL/releases/$RELEASE_ID/assets?name=$(basename "$SETUP_FILE")" \
              -H "Authorization: token $GITEA_TOKEN" \
              -H "Content-Type: application/octet-stream" \
              --data-binary "@$SETUP_FILE"
            echo "Uploaded: $(basename "$SETUP_FILE")"
          fi

  # ── Linux tarball ──────────────────────────────────────────
  build-linux:
    needs: create-release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install system dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends libportaudio2

      - name: Build Linux distribution
        run: |
          chmod +x build-dist.sh
          ./build-dist.sh "${{ gitea.ref_name }}"

      - name: Upload build artifact
        uses: actions/upload-artifact@v3
        with:
          name: LedGrab-${{ gitea.ref_name }}-linux-x64
          path: build/LedGrab-*.tar.gz
          retention-days: 90

      - name: Attach tarball to release
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          TAG="${{ gitea.ref_name }}"
          RELEASE_ID="${{ needs.create-release.outputs.release_id }}"
          BASE_URL="${{ gitea.server_url }}/api/v1/repos/${{ gitea.repository }}"
          TAR_FILE=$(ls build/LedGrab-*.tar.gz | head -1)
          TAR_NAME=$(basename "$TAR_FILE")

          curl -s -X POST \
            "$BASE_URL/releases/$RELEASE_ID/assets?name=$TAR_NAME" \
            -H "Authorization: token $GITEA_TOKEN" \
            -H "Content-Type: application/octet-stream" \
            --data-binary "@$TAR_FILE"

          echo "Uploaded: $TAR_NAME"

  # ── Docker image ───────────────────────────────────────────
  build-docker:
    needs: create-release
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Extract version metadata
        id: meta
        run: |
          TAG="${{ gitea.ref_name }}"
          VERSION="${TAG#v}"
          # Strip protocol and lowercase for Docker registry path
          SERVER_HOST=$(echo "${{ gitea.server_url }}" | sed -E 's|https?://||')
          REPO=$(echo "${{ gitea.repository }}" | tr '[:upper:]' '[:lower:]')
          REGISTRY="${SERVER_HOST}/${REPO}"

          echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          echo "registry=$REGISTRY" >> "$GITHUB_OUTPUT"
          echo "server_host=$SERVER_HOST" >> "$GITHUB_OUTPUT"

      - name: Login to Gitea Container Registry
        id: docker-login
        continue-on-error: true
        run: |
          echo "${{ secrets.GITEA_TOKEN }}" | docker login \
            "${{ steps.meta.outputs.server_host }}" \
            -u "${{ gitea.actor }}" --password-stdin

      - name: Build Docker image
        if: steps.docker-login.outcome == 'success'
        run: |
          TAG="${{ gitea.ref_name }}"
          REGISTRY="${{ steps.meta.outputs.registry }}"

          docker build \
            --label "org.opencontainers.image.version=${{ steps.meta.outputs.version }}" \
            --label "org.opencontainers.image.revision=${{ gitea.sha }}" \
            -t "$REGISTRY:$TAG" \
            -t "$REGISTRY:${{ steps.meta.outputs.version }}" \
            ./server

          # Tag as latest only for stable releases
          if ! echo "$TAG" | grep -qE '(alpha|beta|rc)'; then
            docker tag "$REGISTRY:$TAG" "$REGISTRY:latest"
          fi

      - name: Push Docker image
        if: steps.docker-login.outcome == 'success'
        run: |
          TAG="${{ gitea.ref_name }}"
          REGISTRY="${{ steps.meta.outputs.registry }}"

          docker push "$REGISTRY:$TAG"
          docker push "$REGISTRY:${{ steps.meta.outputs.version }}"

          if ! echo "$TAG" | grep -qE '(alpha|beta|rc)'; then
            docker push "$REGISTRY:latest"
          fi