name: Release

on:
  push:
    branches:
      - 'release/**'

jobs:
  release:
    runs-on: docker
    
    steps:
      # Install software dependencies into the runner container
      - name: Install system dependencies
        run: |
          apt-get update
          apt-get install -y nodejs npm openjdk-17-jdk maven git jq
          export JAVA_HOME=$(dirname $(dirname $(readlink -f $(which javac))))
          echo "JAVA_HOME=$JAVA_HOME" >> $GITHUB_ENV

      - name: Check Java and Node versions
        run: |
          java -version
          mvn -v
          mvn help:evaluate -Dexpression=settings.localRepository -q -DforceStdout
          node -v
          npm -v
          
      # Checkout (clone) a fresh repo source of the project
      - name: Checkout repository
        uses: actions/checkout@v4
      
      # ##################################################################
      # ## THIS IS A RELEASE                                            ##
      # ##    #1. Get full version string                               ##
      # ##    #2. Remove sufix "-SNAPSHOT" from version string          ##
      # ##        And commit                                            ##
      # ##    #3. Tag the release                                       ##
      # ##                                                              ##
      - name: Extract version from pom.xml
        id: version
        run: |
          VERSION=$(mvn help:evaluate -Dexpression=project.version -q -DforceStdout)
          RELEASE_VERSION="${VERSION/-SNAPSHOT/}"
          echo "release_version=$RELEASE_VERSION" >> $GITHUB_OUTPUT

      - name: Set release version (remove -SNAPSHOT)
        run: |
          mvn versions:set -DnewVersion=${{ steps.version.outputs.release_version }}
          mvn versions:commit
          git config user.name "forgejo-actions"
          git config user.email "ci@forgejo.local"
          git commit -am "Release ${{ steps.version.outputs.release_version }}"
          git push

      # Create the release notes (closed issues)
      # Must be here, before the new tag, to get closed issued from the LAST TAG to NOW
      - name: Generate release notes from closed issues
        id: generate_notes
        run: |
          REPO_OWNER="root"
          REPO_NAME="resilient"
          TOKEN="${{ secrets.FORGEJO_TOKEN }}"
          VERSION="${{ steps.version.outputs.release_version }}"
          API_BASE="https://git.oguerreiro.com/api/v1"

          echo "Fetching latest release tag..."
          LATEST_TAG=$(curl -sf -H "Authorization: token $TOKEN" \
            "$API_BASE/repos/$REPO_OWNER/$REPO_NAME/tags" \
            | jq -r '.[0].name')

          if [[ -z "$LATEST_TAG" || "$LATEST_TAG" == "null" ]]; then
            echo "No previous tags found. Assuming first release."
            CLOSED_ISSUES=""
          else
            echo "Latest tag is: $LATEST_TAG"

            # Get ISO timestamp of the latest tag commit
            LATEST_TAG_COMMIT_DATE=$(curl -sf -H "Authorization: token $TOKEN" \
              "$API_BASE/repos/$REPO_OWNER/$REPO_NAME/git/refs/tags/$LATEST_TAG" \
              | jq -r '.[0].object.sha' \
              | xargs -I{} curl -sf -H "Authorization: token $TOKEN" \
                "$API_BASE/repos/$REPO_OWNER/$REPO_NAME/git/commits/{}" \
              | jq -r '.committer.date')
            COMMIT_DATE="$LATEST_TAG_COMMIT_DATE"
            echo "Fetching closed issues since $COMMIT_DATE..."

            CLOSED_ISSUES_JSON=$(curl -sf -H "Authorization: token $TOKEN" \
              "$API_BASE/repos/$REPO_OWNER/$REPO_NAME/issues?state=closed&since=$COMMIT_DATE")

            if [[ -z "$CLOSED_ISSUES_JSON" ]]; then
              echo "Warning: No closed issues or invalid response."
              CLOSED_ISSUES=""
            else
              CLOSED_ISSUES=$(echo "$CLOSED_ISSUES_JSON" | jq -r '.[] | "- [#\(.number)](\(.html_url)) \(.title)"')
            fi
          fi
    
          # Build release notes markdown
          {
            echo "## Release v$VERSION"
            echo
            if [[ -n "$CLOSED_ISSUES" ]]; then
              echo "### Closed Issues"
              echo "$CLOSED_ISSUES"
            else
              echo "No issues closed since last release."
            fi
          } > release-notes.md
          cat release-notes.md
          
      - name: Tag release
        run: |
          git tag -a v${{ steps.version.outputs.release_version }} -m "Release ${{ steps.version.outputs.release_version }}"
          git push origin v${{ steps.version.outputs.release_version }}
      # ##                                                              ##
      # ##################################################################
            
      # Install @Angular dependencies
      - name: Install frontend dependencies
        if: false # DISABLED for testing. To check if backend build is also doing frontend.
        run: |
          cd src/main/webapp
          npm ci

      # Build the frontend
      - name: Build frontend
        if: false # DISABLED for testing. To check if backend build is also doing frontend.
        run: |
          cd src/main/webapp
          npm run build
    
      # Build the backend (JAR). NOTE:  the -Dmaven.download.parallel=false will force MAVEN to have a single connection for downloads, without this I can get "Connection reset"
      - name: Build backend (Spring Boot)
        if: false # DISABLED for testing. Justo to make it faster to reach the CREATE RELEASE step
        run: |
          echo "DEBUG Outputs ************************* "
          echo "Container hostname: $(hostname)"
          echo "Runner working dir: $PWD"
          echo "Runner user: $(whoami)"
          echo "Listing contents of ~/.m2/repository:"
          ls -lhR ~/.m2/repository | head -n 100 || echo "No .m2/repository found"
          echo "Disk usage:"
          du -sh ~/.m2/repository || echo "No .m2 directory found"
          echo " "
          echo "BUILD Outputs ************************* "
          mvn clean package -Pprod -DskipTests -Dmaven.download.parallel=false -Dmaven.repo.local=/root/.m2/repository -s .forgejo/workflows/ci-settings.xml 
        container:
          image: maven:3.9-eclipse-temurin-17
          volumes:
            - docker-forgejo_maven-cache:/root/.m2
            
      # Log output
      - name: List output files
        run: |
          ls -lh target/*.jar || true
        
      # save artifacts
      - name: Upload backend JAR
        uses: actions/upload-artifact@v3
        with:
          name: app-backend
          path: target/resilient*.jar
          
      # Create the release
      #   NOTE: added system dependency install "jq"
      - name: Create release and upload JAR
        run: |
          VERSION=${{ steps.version.outputs.release_version }}
          API="https://git.oguerreiro.com/api/v1"
          REPO="root/resilient"

          # Create release
          RESPONSE=$(curl -s -X POST "$API/repos/$REPO/releases" \
            -H "Authorization: token ${{ secrets.FORGEJO_TOKEN }}" \
            -H "Content-Type: application/json" \
            -d "{
              \"tag_name\": \"v$VERSION\",
              \"target_commitish\": \"master\",
              \"name\": \"Release v$VERSION\",
              \"body\": $(jq -Rs < release-notes.md)
            }")
            
          RELEASE_ID=$(echo "$RESPONSE" | jq -r '.id')
          echo "Created release ID: $RELEASE_ID"

          # Upload artifact
          curl -s -X POST "$API/repos/$REPO/releases/$RELEASE_ID/assets?name=resilient.jar" \
            -H "Authorization: token ${{ secrets.FORGEJO_TOKEN }}" \
            -H "Content-Type: application/java-archive" \
            --data-binary @"target/resilient*.jar"


      # ##################################################################
      # ## THIS IS A RELEASE - Change master version to next SNAPSHOT   ##
      # ##    #4. Checkout master                                       ##
      # ##    #5. Calculate the new version string                      ##
      # ##        Update pom.xml                                        ##
      # ##        Calculate the new version string                      ##
      - name: Checkout main
        if: false # DISABLED for testing. DON't atually change master version
        uses: actions/checkout@v3
        with:
          ref: master

      - name: Bump to next SNAPSHOT version
        if: false # DISABLED for testing. DON't atually change master version
        run: |
          # Extract the version from the ref, handling tags like v1.0.2 or branches like release/1.0.2
          RAW_REF="${GITHUB_REF##*/}"  # gets 'v1.0.2' or '1.0.2'
          VERSION="${RAW_REF#v}"       # strips leading 'v' if present → gives '1.0.2'

          echo "Current version: $VERSION"

          MAJOR=$(echo "$VERSION" | cut -d. -f1)
          MINOR=$(echo "$VERSION" | cut -d. -f2)
          PATCH=$(echo "$VERSION" | cut -d. -f3)
          NEXT_PATCH=$((PATCH + 1))
          NEXT_VERSION="$MAJOR.$MINOR.$NEXT_PATCH-SNAPSHOT"

          echo "Next version: $NEXT_VERSION"

          mvn versions:set -DnewVersion="$NEXT_VERSION"
          mvn versions:commit

          git config user.name "forgejo-actions"
          git config user.email "ci@forgejo.local"
          git commit -am "Start next development cycle $NEXT_VERSION"
          git push origin master
      # ##                                                              ##
      # ##################################################################