name: release

on:
  workflow_dispatch:
    inputs:
      stableVersion:
        description: "Stable release version (e.g., 1.8.0)"
        required: true
      betaVersion:
        description: "Beta release version (e.g., 1.8.0-beta15)"
        required: true
      branch:
        description: "Branch to release from (e.g., 'main' for minor releases, 'release/x.y.z' for patch releases)"
        required: false
        default: "main"
      startFrom:
        description: "Phase to start from (use to resume after a failed release)"
        required: false
        default: "core-and-parent"
        type: choice
        options:
          - core-and-parent
          - in-process-embeddings
          - rest-of-modules
          - commit-and-tag

env:
  STABLE_VERSION: ${{ github.event.inputs.stableVersion || github.event.client_payload.stableVersion }}
  BETA_VERSION: ${{ github.event.inputs.betaVersion || github.event.client_payload.betaVersion }}
  BRANCH: ${{ github.event.inputs.branch || github.event.client_payload.branch || 'main' }}
  START_FROM: ${{ github.event.inputs.startFrom || github.event.client_payload.startFrom || 'core-and-parent' }}

permissions:
  contents: write

concurrency:
  group: release
  cancel-in-progress: false

jobs:
  release:
    runs-on: ubuntu-latest
    steps:

      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
        with:
          ref: ${{ env.BRANCH }}
          fetch-depth: 0
          # PAT is required to push the version commit and release tag to a protected branch
          token: ${{ secrets.GH_RELEASE_AUTOMATION }}

      - name: Set up JDK 25
        uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5
        with:
          java-version: '25'
          distribution: 'temurin'
          cache: maven
          server-id: central
          server-username: MAVEN_CENTRAL_USERNAME
          server-password: MAVEN_CENTRAL_PASSWORD
          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
          gpg-passphrase: GPG_PASSPHRASE

      - name: Show inputs
        run: |
          echo "Stable version: $STABLE_VERSION"
          echo "Beta version: $BETA_VERSION"
          echo "Branch to release from: $BRANCH"
          echo "Start from phase: $START_FROM"

      - name: Compute start phase number
        id: phase
        run: |
          case "$START_FROM" in
            core-and-parent)       echo "num=1" >> "$GITHUB_OUTPUT" ;;
            in-process-embeddings) echo "num=2" >> "$GITHUB_OUTPUT" ;;
            rest-of-modules)       echo "num=3" >> "$GITHUB_OUTPUT" ;;
            commit-and-tag)        echo "num=4" >> "$GITHUB_OUTPUT" ;;
            *) echo "Unknown startFrom: $START_FROM" >&2; exit 1 ;;
          esac

      - name: Extract current stable SNAPSHOT version from POM property
        id: extract-stable-snapshot-version
        run: |
          REVISION=$(mvn help:evaluate -Dexpression=langchain4j.stable.version -q -DforceStdout)
          echo "stableVersionSnapshot=$REVISION" >> $GITHUB_OUTPUT

      - name: Update stable versions
        run: mvn versions:set -DnewVersion="$STABLE_VERSION" -DoldVersion=${{ steps.extract-stable-snapshot-version.outputs.stableVersionSnapshot }} -DgroupId=* -DartifactId=* -DgenerateBackupPoms=false

      - name: Update stable version property
        run: mvn versions:set-property -Dproperty=langchain4j.stable.version -DnewVersion="$STABLE_VERSION" -DgenerateBackupPoms=false

      - name: Extract current beta SNAPSHOT version from POM property
        id: extract-beta-snapshot-version
        run: |
          REVISION=$(mvn help:evaluate -Dexpression=langchain4j.beta.version -q -DforceStdout)
          echo "betaVersionSnapshot=$REVISION" >> $GITHUB_OUTPUT

      - name: Update beta versions
        run: mvn versions:set -DnewVersion="$BETA_VERSION" -DoldVersion=${{ steps.extract-beta-snapshot-version.outputs.betaVersionSnapshot }} -DgroupId=* -DartifactId=* -DgenerateBackupPoms=false

      - name: Update beta version property
        run: mvn versions:set-property -Dproperty=langchain4j.beta.version -DnewVersion="$BETA_VERSION" -DgenerateBackupPoms=false

      - name: Release core and parent modules
        if: ${{ fromJSON(steps.phase.outputs.num) <= 1 }}
        run: mvn -B -U -pl internal/langchain4j-internal-test-retry,langchain4j-core,langchain4j-parent -Psign clean deploy
        env:
          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
          MAVEN_CENTRAL_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
          MAVEN_CENTRAL_PASSWORD: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}

      - name: Release in-process embeddings modules
        if: ${{ fromJSON(steps.phase.outputs.num) <= 2 }}
        run: |
          EMBEDDING_MODULES=$(find embeddings -mindepth 1 -maxdepth 1 -type d -exec test -f "{}/pom.xml" \; -print | paste -sd , -)
          
          mvn -B -U --fail-at-end \
            -DskipTests -DskipITs \
            -pl "$EMBEDDING_MODULES" \
            -Psign clean deploy
        env:
          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
          MAVEN_CENTRAL_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
          MAVEN_CENTRAL_PASSWORD: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}

      - name: Release the rest of the modules
        if: ${{ fromJSON(steps.phase.outputs.num) <= 3 }}
        run: |
          EMBEDDING_MODULES=$(find embeddings -mindepth 1 -maxdepth 1 -type d -exec test -f "{}/pom.xml" \; -print | paste -sd , -)
          
          EXCLUDES="!internal/langchain4j-internal-test-retry,!langchain4j-core,!langchain4j-parent"

          # Append embeddings exclusions (converted to !path syntax)
          if [ -n "$EMBEDDING_MODULES" ]; then
            EMBEDDING_MODULES_EXCLUDES=$(echo "$EMBEDDING_MODULES" | sed 's/[^,]*/!\0/g')
            EXCLUDES="$EXCLUDES,$EMBEDDING_MODULES_EXCLUDES"
          fi

          # Exclude integration-tests and all its submodules
          INTEGRATION_TEST_MODULES=$(find integration-tests -mindepth 1 -maxdepth 2 -type d -exec test -f "{}/pom.xml" \; -print | paste -sd , -)
          EXCLUDES="$EXCLUDES,!integration-tests"
          if [ -n "$INTEGRATION_TEST_MODULES" ]; then
            INTEGRATION_TEST_EXCLUDES=$(echo "$INTEGRATION_TEST_MODULES" | sed 's/[^,]*/!\0/g')
            EXCLUDES="$EXCLUDES,$INTEGRATION_TEST_EXCLUDES"
          fi

          # Exclude internal modules
          EXCLUDES="$EXCLUDES,!internal/langchain4j-docu-chatbot-updater"

          echo "Excluding modules: $EXCLUDES"
    
          mvn -B -U --fail-at-end \
            -DskipTests -DskipITs \
            -pl "$EXCLUDES" \
            -Psign clean deploy
        env:
          GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
          MAVEN_CENTRAL_USERNAME: ${{ secrets.MAVEN_CENTRAL_USERNAME }}
          MAVEN_CENTRAL_PASSWORD: ${{ secrets.MAVEN_CENTRAL_PASSWORD }}

      - name: Commit version changes
        if: ${{ fromJSON(steps.phase.outputs.num) <= 4 }}
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add pom.xml '**/pom.xml'
          git commit -m "Release versions $STABLE_VERSION and $BETA_VERSION"

      - name: Push
        if: ${{ fromJSON(steps.phase.outputs.num) <= 4 }}
        run: |
          git push origin "$BRANCH"

      - name: Tag release
        if: ${{ fromJSON(steps.phase.outputs.num) <= 4 }}
        run: |
          git tag "$STABLE_VERSION"
          git push origin "$STABLE_VERSION"

      - name: Trigger release in the langchain4j/langchain4j-spring repo
        env:
          GH_TOKEN: ${{ secrets.GH_RELEASE_AUTOMATION }}
        run: |
          gh api repos/langchain4j/langchain4j-spring/dispatches \
            -f event_type=trigger-release \
            -f "client_payload[stableVersion]=$STABLE_VERSION" \
            -f "client_payload[betaVersion]=$BETA_VERSION" \
            -f "client_payload[branch]=$BRANCH"