name: Generate and Update README.MD File List

on:
 push:
  branches:
   - main
 pull_request:
  branches:
   - main
 workflow_dispatch: # Allows manual triggering

permissions:
 contents: write
 pull-requests: write

jobs:
 build:
  runs-on: ubuntu-latest

  steps:
   - name: Checkout repository
     uses: actions/checkout@v4

   - name: List files in the repository
     run: |
      ls -al

   - name: Verify README.md exists
     run: |
      if [ ! -f README.md ]; then
        echo "README.md not found!"
        exit 1
      fi

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

   - name: Create src directory
     run: mkdir -p src

   - name: Download generate_file_list.py
     run: |
      curl -L -o src/generate_file_list.py https://github.com/Nick2bad4u/generate-repo-file-list/raw/refs/heads/main/src/generate_file_list.py
      chmod +x src/generate_file_list.py

   - name: Install dependencies (if any)
     run: |
      python -m pip install tqdm==4.66.4
      # Add any dependencies your script needs here
      # For example: pip install requests

   - name: Run Generate Repo File List Action
     uses: nick2bad4u/generate-repo-file-list@main
     with:
      log-level: "INFO"
      directory: "."
      repo-url: "https://github.com/${{ github.repository }}"
      fallback-repo-url: "https://github.com/${{ github.repository }}"
      output-format: "html"
      output-file: "file_list.html"
      color-source: "random"
      color-list: "#FF0000 #00FF00 #0000FF #FFFF00 #FF00FF #00FFFF"
      color-range-start: "#000000"
      color-range-end: "#FFFFFF"
      file-categories: ""
      overwrite-file-categories: "false"
      ignore-list: ""
      overwrite-ignore-list: "false"
      max-attempts: "1000000"
      exclude-blacks-threshold: "#222222"
      exclude-dark-colors: "false"
      exclude-bright-colors: "false"
      exclude-blacks: "false"
      ensure-readable-colors: "false"
      repo-root-header: "Repo Root"
      header-text: "## File List"
      intro-text: "# Here is a list of files included in this repository:"
      dark-color-luminance-threshold: "128"
      bright-color-luminance-threshold: "200"
      chunk-size: "40"
      viewport-mobile: "768"
      viewport-tablet: "1024"
      viewport-small-desktop: "1440"
      root-margin-large-desktop: "0px 0px 400px 0px"
      root-margin-small-desktop: "0px 0px 300px 0px"
      root-margin-tablet: "0px 0px 200px 0px"
      root-margin-mobile: "0px 0px 100px 0px"
      respect-gitignore: "true"
      default-branch: "${{ github.event.repository.default_branch }}"
      link-ref: "${{ github.sha }}"
      gtm-id: "GTM-T8J6HPLF"
      output-file-stdout: "false"

   - name: Update README.md
     uses: actions/github-script@v7
     with:
      script: |
       const fs = require('fs');
            const readmePath = './README.md';
            let fileListPath = './file_list.md';
            const fileListHTMLPath = './file_list.html';

            // Determine which file to use based on which is newer
            if (fs.existsSync(fileListPath) && fs.existsSync(fileListHTMLPath)) {
         const fileListStat = fs.statSync(fileListPath);
         const fileListHTMLStat = fs.statSync(fileListHTMLPath);

         if (fileListHTMLStat.mtime > fileListStat.mtime) {
           fileListPath = fileListHTMLPath;
           console.log('Using file_list.html because it is newer than file_list.md');
         } else {
           console.log('Using file_list.md because it is newer than file_list.html');
         }
            } else if (fs.existsSync(fileListHTMLPath)) {
         fileListPath = fileListHTMLPath;
         console.log('Using file_list.html because file_list.md does not exist');
            } else if (!fs.existsSync(fileListPath)) {
         console.warn('Neither file_list.md nor file_list.html exist.  Aborting README.md update.');
         return;
            }

       try {
         // Check if README.md exists, if not create it
         if (!fs.existsSync(readmePath)) {
         console.warn('README.md not found. Creating a new README.md file.');
         fs.writeFileSync(readmePath, '# Project Title\n\n<!-- FILE_LIST_START -->\n<!-- FILE_LIST_END -->\n');
         }

         // Read the contents of README.md
         let readmeContent = fs.readFileSync(readmePath, 'utf8');

         // Read the contents of file_list.md
         const fileListContent = fs.readFileSync(fileListPath, 'utf8');

         // Define start and end markers for the file list section
         const startMarker = '<!-- FILE_LIST_START -->';
         const endMarker = '<!-- FILE_LIST_END -->';

         // Find the start and end positions of the file list section
         const startPosition = readmeContent.indexOf(startMarker);
         const endPosition = readmeContent.indexOf(endMarker);

         // Check if the markers exist in the README.md file
         if (startPosition === -1 || endPosition === -1) {
           console.warn('Start or end markers not found in README.md.  The action will add the markers with the file list to the end of the file.');
           readmeContent += `\n${startMarker}\n${fileListContent}\n${endMarker}\n`;
         } else {
           // Replace the existing file list with the new content
           readmeContent = readmeContent.substring(0, startPosition + startMarker.length) +
             '\n' + fileListContent + '\n' +
             readmeContent.substring(endPosition);
         }

         // Write the updated content back to README.md
         fs.writeFileSync(readmePath, readmeContent);
         console.log('Successfully updated README.md');
       } catch (error) {
         console.error('Failed to update README.md:', error);
       }

   - name: Commit and push changes
     uses: stefanzweifel/git-auto-commit-action@v5
     with:
      commit_message: "Update file list in README.md automatically with GitHub Action"
      file_pattern: "README.md"
      commit_user_name: "{{ github.actor }}"
      commit_user_email: "{{ github.actor }}@users.noreply.github.com"
      commit_author: "{{ github.actor }} <{{ github.actor }}@users.noreply.github.com>"