# .gitea/workflows/helm-release.yaml
# プロジェクトへの変更（main への push）時に実行。
# Chart.yaml の version が「まだリリースされていない」場合のみ、
# タグ作成 → Gitea リリース → Helm チャート publish を行う。
# 既にリリース済みのバージョンなら lint のみで終了する（再 publish しない）。

name: Helm Chart Release

on:
  push:
    branches:
      - main
      - master
  workflow_dispatch:

env:
  REGISTRY_URL: https://git.cafepieters.com
  OWNER: helmchart

jobs:
  release-chart:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Install Helm
        uses: azure/setup-helm@v3
        with:
          version: 'v3.16.4'

      - name: Ensure jq
        run: command -v jq >/dev/null 2>&1 || (sudo apt-get update -qq && sudo apt-get install -y -qq jq)

      - name: Get chart info
        id: info
        run: |
          set -e
          CHART_NAME=$(grep '^name:' Chart.yaml | awk '{print $2}')
          CHART_VERSION=$(grep '^version:' Chart.yaml | awk '{print $2}' | tr -d '"')
          echo "name=${CHART_NAME}"       >> $GITHUB_OUTPUT
          echo "version=${CHART_VERSION}" >> $GITHUB_OUTPUT
          echo "Chart: ${CHART_NAME} ${CHART_VERSION}"

      - name: Lint
        run: helm lint .

      - name: Check whether this version is already released
        id: check
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          set -e
          V="v${{ steps.info.outputs.version }}"
          # 1) Gitea リリースの有無
          REL_ID=$(curl -s -H "Authorization: token ${GITEA_TOKEN}" \
            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/${V}" | jq -r '.id // empty')
          # 2) Package Registry 上の有無
          PKG_HTTP=$(curl -s -o /dev/null -w '%{http_code}' \
            -u "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" \
            "${REGISTRY_URL}/api/packages/${OWNER}/helm/${{ steps.info.outputs.name }}/${{ steps.info.outputs.version }}")

          if [ -n "$REL_ID" ] || [ "$PKG_HTTP" = "200" ]; then
            echo "release_needed=false" >> $GITHUB_OUTPUT
            echo "既に ${V} はリリース済み（release_id=${REL_ID:-none}, pkg_http=${PKG_HTTP}）。publish をスキップします。"
          else
            echo "release_needed=true" >> $GITHUB_OUTPUT
            echo "${V} は未リリース。リリースを実行します。"
          fi

      - name: Package
        if: steps.check.outputs.release_needed == 'true'
        run: |
          set -e
          helm package .
          echo "CHART_FILE=$(ls ${{ steps.info.outputs.name }}-*.tgz)" >> $GITHUB_ENV

      - name: Create Git tag
        if: steps.check.outputs.release_needed == 'true'
        run: |
          set -e
          git config user.name "Claude"
          git config user.email "claude@cafepieters.com"
          V="v${{ steps.info.outputs.version }}"
          if git rev-parse "$V" >/dev/null 2>&1; then
            echo "tag $V exists, skip"
          else
            git tag -a "$V" -m "Release $V"
            git push origin "$V"
          fi

      - name: Create Gitea release
        if: steps.check.outputs.release_needed == 'true'
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          set -e
          V="v${{ steps.info.outputs.version }}"
          BODY="${{ steps.info.outputs.name }} Helm Chart ${V}"
          RID=$(curl -s -X POST -H "Authorization: token ${GITEA_TOKEN}" -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"${V}\",\"name\":\"${V}\",\"body\":\"${BODY}\"}" \
            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases" | jq -r '.id // empty')
          if [ -z "$RID" ]; then
            RID=$(curl -s -H "Authorization: token ${GITEA_TOKEN}" \
              "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/${V}" | jq -r '.id // empty')
          fi
          curl --fail-with-body -X POST -H "Authorization: token ${GITEA_TOKEN}" \
            -H "Content-Type: application/gzip" --data-binary "@${CHART_FILE}" \
            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/${RID}/assets?name=${CHART_FILE}"
          echo "Gitea release ${V} 作成完了"

      - name: Publish to Gitea Package Registry
        if: steps.check.outputs.release_needed == 'true'
        run: |
          set -e
          curl --fail-with-body -u "${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_TOKEN }}" \
            -X POST --upload-file "${CHART_FILE}" \
            "${REGISTRY_URL}/api/packages/${OWNER}/helm/api/charts"
          echo "✅ ${CHART_FILE} を publish しました"

      - name: Summary
        if: always()
        run: |
          echo "================================"
          echo "Chart   : ${{ steps.info.outputs.name }} ${{ steps.info.outputs.version }}"
          echo "Released : ${{ steps.check.outputs.release_needed }}"
          echo "================================"
          echo "helm repo add cafepieters ${REGISTRY_URL}/api/packages/${OWNER}/helm"
          echo "helm repo update && helm install my-${{ steps.info.outputs.name }} cafepieters/${{ steps.info.outputs.name }}"