name: Update Docker Image Tags and Release Helm Chart

on:
  schedule:
    - cron: '0 3 * * 1'  # 毎週月曜日 3:00 AM (JST 12:00 PM)
  workflow_dispatch:

jobs:
  update-and-release:
    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: 'v3.12.0'

      - name: Check for new nginx version
        id: nginx
        run: |
          set -e
          echo "Checking nginx versions..."
          CURRENT=$(grep -A3 "nginx:" values.yaml | grep "tag:" | head -1 | sed 's/.*tag: *"\([^"]*\)".*/\1/' | tr -d ' ')
          echo "Current nginx: $CURRENT"
          
          # Docker Hub API v2を使用してタグを取得
          LATEST=$(curl -s "https://registry.hub.docker.com/v2/repositories/library/nginx/tags?page_size=100" | \
            jq -r '.results[].name' | \
            grep -E '^[0-9]+\.[0-9]+\.[0-9]+-alpine-perl$' | \
            sort -V | tail -1)
          
          if [ -z "$LATEST" ]; then
            echo "Warning: Could not fetch latest nginx version, using current"
            LATEST="$CURRENT"
          fi
          echo "Latest nginx: $LATEST"
          echo "current=$CURRENT" >> $GITHUB_OUTPUT
          echo "latest=$LATEST" >> $GITHUB_OUTPUT

      - name: Check for new phpMyAdmin version
        id: phpmyadmin
        run: |
          set -e
          echo "Checking phpMyAdmin versions..."
          CURRENT=$(grep -A3 "phpmyadmin:" values.yaml | grep "tag:" | head -1 | sed 's/.*tag: *"\([^"]*\)".*/\1/' | tr -d ' ')
          echo "Current phpMyAdmin: $CURRENT"
          
          # Docker Hub API v2を使用してタグを取得
          # パターン: 5.2.3-fpm-alpine 形式
          LATEST=$(curl -s "https://registry.hub.docker.com/v2/repositories/phpmyadmin/phpmyadmin/tags?page_size=100" | \
            jq -r '.results[].name' | \
            grep -E '^[0-9]+\.[0-9]+\.[0-9]+-fpm-alpine$' | \
            sort -V | tail -1)
          
          if [ -z "$LATEST" ]; then
            echo "Warning: Could not fetch latest phpMyAdmin version, using current"
            LATEST="$CURRENT"
          fi
          
          # phpMyAdminバージョンを抽出 (5.2.3の部分)
          APP_VERSION=$(echo "$LATEST" | grep -oE '^[0-9]+\.[0-9]+\.[0-9]+')
          if [ -z "$APP_VERSION" ]; then
            echo "Error: Could not extract phpMyAdmin version"
            exit 1
          fi
          
          echo "Latest phpMyAdmin: $LATEST"
          echo "phpMyAdmin version: $APP_VERSION"
          echo "current=$CURRENT" >> $GITHUB_OUTPUT
          echo "latest=$LATEST" >> $GITHUB_OUTPUT
          echo "app_version=$APP_VERSION" >> $GITHUB_OUTPUT

      - name: Determine if update is needed
        id: check_update
        run: |
          set -e
          NGINX_CURRENT="${{ steps.nginx.outputs.current }}"
          NGINX_LATEST="${{ steps.nginx.outputs.latest }}"
          PMA_CURRENT="${{ steps.phpmyadmin.outputs.current }}"
          PMA_LATEST="${{ steps.phpmyadmin.outputs.latest }}"
          
          echo "Nginx: $NGINX_CURRENT vs $NGINX_LATEST"
          echo "phpMyAdmin: $PMA_CURRENT vs $PMA_LATEST"
          
          if [ "$NGINX_CURRENT" != "$NGINX_LATEST" ] || [ "$PMA_CURRENT" != "$PMA_LATEST" ]; then
            echo "update_needed=true" >> $GITHUB_OUTPUT
            echo "Update is needed"
          else
            echo "update_needed=false" >> $GITHUB_OUTPUT
            echo "Already up to date"
          fi

      - name: Update values.yaml
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          set -e
          echo "Updating values.yaml..."
          
          # phpMyAdminバージョンを取得
          APP_VERSION="${{ steps.phpmyadmin.outputs.app_version }}"
          
          # Nginx更新
          NGINX_OLD="${{ steps.nginx.outputs.current }}"
          NGINX_NEW="${{ steps.nginx.outputs.latest }}"
          if [ "$NGINX_OLD" != "$NGINX_NEW" ]; then
            # nginxセクションのtagのみを更新（1つ目のタグ）
            sed -i "0,/tag: \"${NGINX_OLD}\"/s//tag: \"${NGINX_NEW}\"/" values.yaml
            echo "Nginx updated: $NGINX_OLD -> $NGINX_NEW"
          fi
          
          # phpMyAdmin更新
          PMA_OLD="${{ steps.phpmyadmin.outputs.current }}"
          PMA_NEW="${{ steps.phpmyadmin.outputs.latest }}"
          if [ "$PMA_OLD" != "$PMA_NEW" ]; then
            # phpmyadminセクションのtagのみを更新（2つ目のタグ）
            sed -i "0,/tag: \"${NGINX_NEW}\"/b; s/tag: \"${PMA_OLD}\"/tag: \"${PMA_NEW}\"/" values.yaml
            echo "phpMyAdmin updated: $PMA_OLD -> $PMA_NEW"
          fi
          
          echo "values.yaml updated"
          git diff values.yaml

      - name: Update Chart.yaml version
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          set -e
          APP_VERSION="${{ steps.phpmyadmin.outputs.app_version }}"
          sed -i "s/^version: .*/version: \"$APP_VERSION\"/" Chart.yaml
          sed -i "s/^appVersion: .*/appVersion: \"$APP_VERSION\"/" Chart.yaml
          echo "Chart.yaml updated to version $APP_VERSION"
          cat Chart.yaml

      - name: Commit changes
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          git config user.name "Gitea Actions Bot"
          git config user.email "actions@gitea.local"
          git add values.yaml Chart.yaml
          git commit -m "chore: update to phpMyAdmin ${{ steps.phpmyadmin.outputs.app_version }}, nginx ${{ steps.nginx.outputs.latest }}"
          git push origin main

      - name: Package Helm Chart
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          helm package .
          echo "Helm chart packaged"

      - name: Create Git Tag
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          APP_VERSION="${{ steps.phpmyadmin.outputs.app_version }}"
          git tag -a "v$APP_VERSION" -m "Release phpMyAdmin $APP_VERSION"
          git push origin "v$APP_VERSION"
          echo "Git tag v$APP_VERSION created"

      - name: Create Gitea Release
        if: steps.check_update.outputs.update_needed == 'true'
        env:
          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
        run: |
          APP_VERSION="${{ steps.phpmyadmin.outputs.app_version }}"
          CHART_NAME=$(grep '^name:' Chart.yaml | awk '{print $2}')
          PACKAGE_FILE="${CHART_NAME}-${APP_VERSION}.tgz"
          RELEASE_BODY="phpMyAdmin Helm Chart v${APP_VERSION} - phpMyAdmin: ${{ steps.phpmyadmin.outputs.latest }}, Nginx: ${{ steps.nginx.outputs.latest }}"
          
          # リリースを作成
          curl -X POST \
            -H "Authorization: token ${GITEA_TOKEN}" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"v${APP_VERSION}\",\"name\":\"v${APP_VERSION}\",\"body\":\"${RELEASE_BODY}\"}" \
            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases"
          
          # リリースIDを取得
          RELEASE_ID=$(curl -s \
            -H "Authorization: token ${GITEA_TOKEN}" \
            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/tags/v${APP_VERSION}" | jq -r '.id')
          
          # アセットをアップロード
          curl -X POST \
            -H "Authorization: token ${GITEA_TOKEN}" \
            -H "Content-Type: application/gzip" \
            --data-binary "@${PACKAGE_FILE}" \
            "${GITHUB_API_URL}/repos/${GITHUB_REPOSITORY}/releases/${RELEASE_ID}/assets?name=${PACKAGE_FILE}"
          
          echo "Release created with asset: ${PACKAGE_FILE}"

      - name: Checkout Helm Repository
        if: steps.check_update.outputs.update_needed == 'true'
        uses: actions/checkout@v3
        with:
          repository: helmchart/repo
          token: ${{ secrets.GITEA_TOKEN }}
          path: helm-repo
          fetch-depth: 0

      - name: Update Helm Repository Index
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          set -e
          APP_VERSION="${{ steps.phpmyadmin.outputs.app_version }}"
          CHART_NAME=$(grep '^name:' Chart.yaml | awk '{print $2}')
          PACKAGE_FILE="${CHART_NAME}-${APP_VERSION}.tgz"
          
          echo "Updating Helm repository..."
          
          # パッケージファイルをHelmリポジトリにコピー
          cp "${PACKAGE_FILE}" helm-repo/
          
          cd helm-repo
          
          # index.yamlを生成/更新
          helm repo index . --url "https://git.cafepieters.com/helmchart/repo/raw/branch/main"
          
          # コミットしてプッシュ
          git config user.name "Gitea Actions Bot"
          git config user.email "actions@gitea.local"
          git add "${PACKAGE_FILE}" index.yaml
          git commit -m "chore: add ${CHART_NAME} v${APP_VERSION}" || echo "No changes to commit"
          git push origin main
          
          echo "Helm repository updated successfully"

      - name: Summary
        if: steps.check_update.outputs.update_needed == 'true'
        run: |
          APP_VERSION="${{ steps.phpmyadmin.outputs.app_version }}"
          NGINX_VERSION="${{ steps.nginx.outputs.latest }}"
          PMA_VERSION="${{ steps.phpmyadmin.outputs.latest }}"
          echo "========================================"
          echo "Update completed successfully!"
          echo "========================================"
          echo "Chart Version: ${APP_VERSION}"
          echo "phpMyAdmin: ${PMA_VERSION}"
          echo "Nginx: ${NGINX_VERSION}"
          echo "========================================"
          echo "Helm repository updated at:"
          echo "https://git.cafepieters.com/helmchart/repo"
          echo "========================================"