name: Deploy Documentation

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

permissions:
  contents: write

jobs:
  check-for-changes:
    name: Check for changes
    runs-on: ubuntu-latest
    outputs:
      changed: ${{ steps.check_files.outputs.any_changed }}
    steps:
      - name: Checkout Code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Check for changed documentation files
        id: check_files
        uses: tj-actions/changed-files@v46
        with:
          files: |
            docs/**
            mkdocs.yml

  deploy:
    name: Deploy MkDocs Site
    runs-on: ubuntu-latest
    timeout-minutes: 10
    needs: check-for-changes
    if: needs.check-for-changes.outputs.changed == 'true'
    env:
      CI_COMMIT_AUTHOR: 'CI Bot'
      CI_COMMIT_EMAIL: 'ci@noreply.github.com'
      CI_COMMIT_MESSAGE: 'Continuous Integration - Deploy Documentation'

    steps:
      - name: Generate GitHub App Token
        id: generate_token
        uses: tibdex/github-app-token@v2
        with:
          app_id: ${{ secrets.APP_ID }}
          private_key: ${{ secrets.APP_PRIVATE_KEY }}

      - name: Checkout Code
        uses: actions/checkout@v4
        with:
          token: ${{ steps.generate_token.outputs.token }}
          fetch-depth: 0

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - name: Install MkDocs and dependencies
        run: pip install mkdocs mkdocs-material pymdown-extensions

      - name: Deploy Docs to GitHub Pages
        run: |
          git config --global user.name "${{ env.CI_COMMIT_AUTHOR }}"
          git config --global user.email "${{ env.CI_COMMIT_EMAIL }}"
          git remote set-url origin https://x-access-token:${{ steps.generate_token.outputs.token }}@github.com/DigiLive/mushroom-strategy.git
          mkdocs gh-deploy --force --clean --message "${{ env.CI_COMMIT_MESSAGE }}"