name: Generate Docs for Branch

on:
  workflow_dispatch:
    inputs:
      repository:
        description: 'Repository (owner/repo)'
        required: true
        default: 'owner/repo'
      branch_name:
        description: 'Branch name to generate docs for'
        required: true
      continue_config:
        description: 'Continue agent configuration to use'
        required: true
        # Set a default value if you have a default config your'd like to use
        # default: 'agent-config-name'
      continue_org:
        description: 'Continue org to use'
        required: true
        # Set a default value if you have a default org your'd like to use
        # default: 'your-org-name'

jobs:
  write-docs:
    runs-on: ubuntu-latest
    name: Write Documentation for Branch
    env:
      CONTINUE_API_KEY: ${{ secrets.CONTINUE_API_KEY }}
      CONTINUE_ORG: ${{ github.event.inputs.continue_org }}
      CONTINUE_CONFIG: ${{ github.event.inputs.continue_config }}

    steps:

    - name: Checkout fork repository
      uses: actions/checkout@v4
      with:
        repository: ${{ github.event.inputs.repository || 'owner/repo' }}
        token: ${{ secrets.GH_PAT }}
        fetch-depth: 0  # Full history needed for sync

    - name: Setup git configuration
      run: |
        git config user.name "github-actions[doc-writer-bot]"
        git config user.email "yourname@email.com"

    - name: Checkout target branch
      run: |
        git fetch origin ${{ github.event.inputs.branch_name }}
        git checkout ${{ github.event.inputs.branch_name }}

    - name: Setup Node.js
      uses: actions/setup-node@v4
      with:
        node-version: '18'

    - name: Install Continue CLI
      run: |
        echo "Installing Continue CLI..."
        npm i -g @continuedev/cli

    - name: Verify Continue CLI installation
      run: |
        echo "Checking Continue CLI version..."
        cn --version || exit 1

    - name: Set branch name
      id: branch
      run: |
        BRANCH_NAME="${{ github.event.inputs.branch_name }}-docs-update-$(date +%Y-%m-%d-%H-%M-%S)"
        echo "branch_name=$BRANCH_NAME" >> $GITHUB_OUTPUT
        echo "Branch name: $BRANCH_NAME"

    - name: Generate git diff context
      run: |
        echo "Git changes:" > context.txt
        git diff origin/main..HEAD --stat >> context.txt
        echo -e "\n\nFile list:" >> context.txt
        git diff origin/main..HEAD >> context.txt
        echo "Generated context file:"
        cat context.txt

    - name: Create documentation branch
      run: |
        echo "Creating branch: ${{ steps.branch.outputs.branch_name }}"
        git checkout -b "${{ steps.branch.outputs.branch_name }}"

    - name: Generate documentation with Continue CLI
      run: |
        echo "Running Continue agent to generate documentation..."
        cn --config <continue-user>/<agent-config> \
           --auto \
           --allow Write \
           -p \
           --prompt ./context.txt \
           "Analyze the provided git diff and identify any new functionality introduced. Summarise the new features in a few sentences. Then search the existing documentation in the site docs/ directory to determine whether these features are already documented in a way that enables users to use them. If documentation is missing or incomplete, create or modify Markdown files under the site diretory (without changing any code) to add clear explanations, usage instructions and examples for the new features in the same style and format as the existing documentation. Finally, print a brief summary of the documentation changes you made."

    - name: Clean up temporary files
      run: rm -f context.txt

    - name: Commit and push documentation changes
      run: |
        echo "Review git status..."
        git status

        echo "Adding files edited in site directory to git..."
        git add site/

        echo "Committing changes..."
        git commit -s -m "docs: update for new functionality from branch ${{ github.event.inputs.branch_name }}"

        echo "Pushing changes to origin..."
        git push --set-upstream origin "${{ steps.branch.outputs.branch_name }}"