name: "Documentation: update versions"

on:
  repository_dispatch:
    types: [ trigger-docs-update-version ]
  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

env:
  STABLE_VERSION: ${{ github.event.inputs.stableVersion || github.event.client_payload.stableVersion }}
  BETA_VERSION: ${{ github.event.inputs.betaVersion || github.event.client_payload.betaVersion }}

permissions:
  contents: write

jobs:
  update-docs:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7
        with:
          token: ${{ secrets.GH_RELEASE_AUTOMATION }}

      - name: Extract current stable and beta versions from docs metadata
        id: extract-current-versions
        run: |
          STABLE_CURRENT=$(grep -E "^stableVersion:" docs/docs/get-started.md | sed 's/stableVersion: *//')
          BETA_CURRENT=$(grep -E "^betaVersion:" docs/docs/get-started.md | sed 's/betaVersion: *//')
          echo "stableCurrent=$STABLE_CURRENT" >> $GITHUB_OUTPUT
          echo "betaCurrent=$BETA_CURRENT" >> $GITHUB_OUTPUT
          echo "Found stable version in docs: $STABLE_CURRENT"
          echo "Found beta version in docs: $BETA_CURRENT"

      - name: Replace versions in docs recursively
        run: |
          echo "Replacing all occurrences of stable and beta versions recursively under docs/docs/..."

          # Replace beta versions
          grep -rl "${{ steps.extract-current-versions.outputs.betaCurrent }}" docs/docs | \
            xargs sed -i "s/${{ steps.extract-current-versions.outputs.betaCurrent }}/$BETA_VERSION/g" || true

          # Replace stable versions
          grep -rl "${{ steps.extract-current-versions.outputs.stableCurrent }}" docs/docs | \
            xargs sed -i "s/${{ steps.extract-current-versions.outputs.stableCurrent }}/$STABLE_VERSION/g" || true

      - name: Update metadata in get-started.md
        run: |
          sed -i "s/betaVersion: .*/betaVersion: $BETA_VERSION/" docs/docs/get-started.md
          sed -i "s/stableVersion: .*/stableVersion: $STABLE_VERSION/" docs/docs/get-started.md

      - name: Check if any changes were made
        id: git-check
        run: |
          if git diff --quiet; then
            echo "changed=false" >> $GITHUB_OUTPUT
          else
            echo "changed=true" >> $GITHUB_OUTPUT
          fi

      - name: Commit and push changes
        if: steps.git-check.outputs.changed == 'true'
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add docs/docs
          git commit -m "docu: update versions to $STABLE_VERSION and $BETA_VERSION"
          git push origin main

      - name: Trigger documentation build and deploy
        if: steps.git-check.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh api repos/langchain4j/langchain4j/dispatches \
            -f event_type=trigger-docs-build-and-deploy

      - name: Trigger documentation chatbot update
        if: steps.git-check.outputs.changed == 'true'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh api repos/langchain4j/langchain4j/dispatches \
            -f event_type=trigger-docs-update-chatbot