{% extends 'base.html' %}

{% block content %}


<div class="row g-3">
        
<p>{{_('Disk usage is the amount of space that is used by the content of your sites, this includes databases, files, videos, images, emails and pages.')}}</p>       
        
        <div class="col-xl-7">
          <div class="card card-one">
            <div class="card-header">
              <h6 class="card-title">{{_('Disk usage per directory')}}</h6>
              <nav class="nav nav-icon nav-icon-sm ms-auto">
                <a href="#" onclick='location.reload(true); return false;' class="nav-link"><i class="bi bi-arrow-clockwise"></i></a>
              </nav>
            </div><!-- card-header -->
            <div class="card-body">
<script src="https://cdn.jsdelivr.net/npm/chart.js"></script>

<canvas id="folderChart" width="400" height="200"></canvas>

            </div><!-- card-body -->
          </div><!-- card -->
        </div><!-- col -->
        <div class="col-sm-12 col-xl-5">
          <div class="card card-one">
            <div class="card-header">
              <h6 class="card-title">{{_('Browse Directories')}}</h6>
              <nav class="nav nav-icon nav-icon-sm ms-auto">
                <a href="/disk-usage" class="nav-link"><i class="bi bi-house-fill"></i></a>
              </nav>
            </div><!-- card-header -->
            <div class="card-body">

  <table id="folders_to_navigate" class="table table-hover table-striped">
    <thead>
      <tr>
        <th>Directory</th>
        <th>Size</th>
      </tr>
    </thead>
    <tbody>
      {% if request.path != '/disk-usage/' %}
        <tr>
          <td><a href="#" id="goUp"><i class="bi bi-arrow-90deg-up"></i> {{_('Up One Level')}}</a></td>
          <td></td>
        </tr>
      {% endif %}
      {% for line in total_du_output.split('\n') %}
      {% if line.strip() %}
        <tr>
            {% set parts = line.split() %}
            {% set count = parts[0] %}
            {% set directory = parts[1:]|join(' ') %}
          <td class="file-name"><a href="#" onclick="openDirectory('{{ directory }}'); return false;"><i style="color: orange;" class="ri-folder-2-fill"></i> {{ directory }}</a>
</td>
          <td>{{ count }}</td>
        </tr>
        {% endif %}
        {% endfor %}
    </tbody>
  </table>      
            </div><!-- card-body -->
          </div><!-- card -->
        </div><!-- col -->
      </div>


<script>
async function openDirectory(directory) {
  // Display a toast message indicating that disk usage is being calculated for the specified directory
  const toastMessage = `{{_('Calculating disk usage for ')}}` + directory + `..`;
  const toast = toaster({
    body: toastMessage,
    className: `border-0 text-white bg-primary`,
  });

  // Construct the new URL by appending the directory to the current URL
  var currentUrl = window.location.href;
  var separator = currentUrl.endsWith('/') ? '' : '/';
  var newUrl = currentUrl + separator + directory;

  try {
    // Send a GET request to the server using the fetch API
    const response = await fetch(newUrl);

    // Get the response HTML content
    const resultHtml = await response.text();

    // Parse the HTML string to extract the content of the specific element
    const parser = new DOMParser();
    const doc = parser.parseFromString(resultHtml, 'text/html');
    const mainScopeContent = doc.getElementById("main-scope")?.innerHTML;

    // Replace the content of the element with the ID "main-scope"
    const mainScopeElement = document.getElementById("main-scope");
    if (mainScopeElement) {
      mainScopeElement.innerHTML = mainScopeContent || '';
    }
    
    //add to url wothout reloading!
    history.pushState({}, '', newUrl);

    // Initialize the chart after updating the content and URL
    initializeChart();

  } catch (error) {
    // Handle errors if the fetch request fails
    console.error('Error fetching data:', error);
  }
}

</script>

<script>
// Function to extract data from the table
function extractDataFromTable() {
  const data = [];
  const tableRows = document.querySelectorAll("#folders_to_navigate tbody tr");

  tableRows.forEach((row) => {
    const columns = row.querySelectorAll("td");
    if (columns.length === 2) {
      const directory = columns[0].textContent.trim();
      const disk = parseHumanReadableSize(columns[1].textContent);

      // Exclude rows with "Up One Level"
      if (directory !== "Up One Level") {
        data.push({ directory, disk });
      }
    }
  });

  return data;
}

// Function to parse human-readable size strings into MB
function parseHumanReadableSize(sizeStr) {
  const sizeRegex = /^(\d+(\.\d+)?)\s*([BKMGT])?B?$/;
  const match = sizeStr.match(sizeRegex);

  if (!match) {
    // Invalid format, return as is
    return sizeStr;
  }

  const size = parseFloat(match[1]);
  const unit = match[3];

  switch (unit) {
    case 'B':
      return size / 1024 / 1024; // Convert to MB
    case 'K':
      return size / 1024; // Convert to MB
    case 'M':
      return size; // Already in MB
    case 'G':
      return size * 1024; // Convert to MB
    case 'T':
      return size * 1024 * 1024; // Convert to MB
    default:
      return size; // Unknown unit, return as is
  }
}

// Function to create a chart
function createChart(data) {
  const labels = data.map((entry) => entry.directory);
  const values = data.map((entry) => entry.disk);

  const ctx = document.getElementById("folderChart").getContext("2d");

  const chart = new Chart(ctx, {
    type: "bar",
    data: {
      labels: labels,
      datasets: [
        {
          label: "Disk Usage (MB)",
          data: values, // The values are already in MB
          backgroundColor: "#506fd9",
        },
      ],
    },
  });
  // console.log(data);
}

// Function to initialize the chart on page load
function initializeChart() {
  const tableData = extractDataFromTable();
  createChart(tableData);
  RefreshOnBackLink();
}

// go back link
function RefreshOnBackLink() {
  const goUpElement = document.getElementById('goUp');

  if (goUpElement) {
    goUpElement.addEventListener('click', async function() {
      const toastMessage = `{{_('Calculating disk usage for parent directory..')}}`;
      const toast = toaster({
        body: toastMessage,
        className: `border-0 text-white bg-primary`,
      });

      var currentUrl = window.location.href;
      var parts = currentUrl.split('/');
      parts.pop();
      var newUrl = parts.join('/');

      try {
        const response = await fetch(newUrl);

        if (!response.ok) {
          throw new Error(`Failed to fetch ${newUrl}`);
        }

        const resultHtml = await response.text();

        // Parse the HTML string to extract the content of the specific element
        const parser = new DOMParser();
        const doc = parser.parseFromString(resultHtml, 'text/html');
        const mainScopeContent = doc.getElementById("main-scope")?.innerHTML;

        // Replace the content of the element with the ID "main-scope"
        const mainScopeElement = document.getElementById("main-scope");
        if (mainScopeElement) {
          mainScopeElement.innerHTML = mainScopeContent || '';
        }

        // Update the browser history
        history.pushState({}, '', newUrl);

        // Initialize the chart after updating the content and URL
        initializeChart();

      } catch (error) {
        console.error('Error fetching data:', error);
      }
    });
  }
}
</script>


<script>
initializeChart();
</script>    



{% endblock %}