name: versioning-and-changelog

on:
  pull_request:
    types:
      - closed  # Gitea utilise 'merged' et non 'closed'
    branches:
      - master
jobs:
  versioning_and_changelog:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Flutter
        uses: subosito/flutter-action@v2
        with:
          channel: stable
          flutter-version-file: pubspec.yaml

      - name: Find commits from merged pull request
        id: get_commits
        run: |
          COMMITS=$(git log HEAD^..HEAD --oneline --no-merges)
          echo "COMMITS=$COMMITS" >> "$GITEA_ENV"

      - name: Extract current version from pubspec.yaml
        id: versioning
        run: |
          CURRENT_VERSION=$(grep 'version:' pubspec.yaml | awk -F ': ' '{print $2}')
          VERSION=$(echo "$CURRENT_VERSION" | cut -d'+' -f1)
          BUILD=$(echo "$CURRENT_VERSION" | cut -d'+' -f2)

          echo "CURRENT_VERSION=$CURRENT_VERSION" >> "$GITEA_ENV"
          echo "VERSION=$VERSION" >> "$GITEA_ENV"
          echo "BUILD=$BUILD" >> "$GITEA_ENV"

      - name: Determine increment type
        id: increment_type
        run: |
          COMMITS="${{ env.COMMITS }}"
          INCREMENT_TYPE="patch"

          if echo "$COMMITS" | grep -iq "breaking:"; then
            INCREMENT_TYPE="major"
          elif echo "$COMMITS" | grep -iq "feat:"; then
            INCREMENT_TYPE="minor"
          elif echo "$COMMITS" | grep -iq "fix:"; then
            INCREMENT_TYPE="patch"
          fi  # Fermeture correcte du if
      
          echo "INCREMENT_TYPE=$INCREMENT_TYPE" >> "$GITEA_ENV"

      - name: Increment version in pubspec.yaml
        id: increment_version
        run: |
          increment_version() {
            local version=$1
            local index=$2
            IFS='.' read -r -a parts <<< "$version"
            parts[$index]=$((parts[$index] + 1))
            for ((i = index + 1; i < ${#parts[@]}; i++)); do parts[$i]=0; done
            echo "${parts[*]}" | tr ' ' '.'
          }

          VERSION="${{ env.VERSION }}"
          BUILD="${{ env.BUILD }}"
          INCREMENT_TYPE="${{ env.INCREMENT_TYPE }}"
          NEW_BUILD=$((BUILD + 1))

          case $INCREMENT_TYPE in
            major) NEW_VERSION=$(increment_version "$VERSION" 0) ;;
            minor) NEW_VERSION=$(increment_version "$VERSION" 1) ;;
            patch) NEW_VERSION=$(increment_version "$VERSION" 2) ;;
          esac

          sed -i "s/^version: .*/version: $NEW_VERSION+$NEW_BUILD/" pubspec.yaml

          echo "NEW_VERSION=$NEW_VERSION" >> "$GITEA_ENV"
          echo "NEW_BUILD=$NEW_BUILD" >> "$GITEA_ENV"

      - name: Generate Changelog
        run: |
          DATE=$(date +"%Y-%m-%d")
          COMMITS="${{ env.COMMITS }}"
          NEW_VERSION="${{ env.NEW_VERSION }}"
          NEW_BUILD="${{ env.NEW_BUILD }}"
          CHANGELOG_FILE="CHANGELOG.md"

          [ ! -f "$CHANGELOG_FILE" ] && echo "# Changelog" > "$CHANGELOG_FILE"

          TEMP_CHANGELOG="CHANGELOG_TEMP.md"
          {
            echo "## $NEW_VERSION+$NEW_BUILD ($DATE)"
            echo ""
            echo "### Features"
            echo "$COMMITS" | grep "feat:" || echo "No new features"
            echo ""
            echo "### Bug Fixes"
            echo "$COMMITS" | grep "fix:" || echo "No bug fixes"
            echo ""
            cat "$CHANGELOG_FILE"
          } > "$TEMP_CHANGELOG"

          mv "$TEMP_CHANGELOG" "$CHANGELOG_FILE"

      - name: Set remote URL
        run: |
          git remote remove origin
          git remote add origin https://${{ secrets.GITEAACCESSTOKEN }}@${{ secrets.GITEAURL#https:// }}/mobiles/flutter-mobile.git
          git remote -v  # Vérifier que l'URL est correcte

      - name: Commit and Push Changes
        run: |
          git config --global user.email "gitea-actions@bot.com"
          git config --global user.name "Gitea Actions"

          git add pubspec.yaml CHANGELOG.md
          git commit -m "chore: bump version to $NEW_VERSION+$NEW_BUILD and update changelog" || echo "No changes to commit"

          echo "🔗 Pushing to remote repository..."
          git push origin master