lambo/debug.html at master · eug-vs/lambo · GitHub

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<!doctype html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>AST Debugger</title>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/7.8.5/d3.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/d3-graphviz/5.0.2/d3-graphviz.min.js"></script>
    <style>
      body {
        font-family:
          -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        margin: 10px;
        background: #fafafa;
        font-size: 14px;
      }
      #graph {
        border: 1px solid #ddd;
        background: white;
        border-radius: 4px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        min-height: 800px;
      }
      .toolbar {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 10px;
        padding: 8px;
        background: white;
        border: 1px solid #ddd;
        border-radius: 4px;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
      }
      .file-input input[type="file"] {
        display: none;
      }
      .file-input label {
        background: #007acc;
        color: white;
        border: none;
        padding: 6px 12px;
        border-radius: 3px;
        cursor: pointer;
        font-size: 13px;
      }
      .file-input label:hover {
        background: #005a9e;
      }
      button {
        background: #f5f5f5;
        color: #333;
        border: 1px solid #ccc;
        padding: 6px 12px;
        border-radius: 3px;
        cursor: pointer;
        font-size: 13px;
      }
      button:hover:not(:disabled) {
        background: #e8e8e8;
      }
      button:disabled {
        opacity: 0.5;
        cursor: not-allowed;
      }
      .step-controls {
        display: flex;
        align-items: center;
        gap: 8px;
      }
      #stepInput,
      #stepByInput {
        width: 60px;
        padding: 4px 6px;
        border: 1px solid #ccc;
        border-radius: 3px;
        font-size: 13px;
      }
      .step-info {
        color: #666;
        font-size: 13px;
        margin-left: auto;
      }
      .playing {
        background: #dc3545 !important;
        color: white !important;
      }
      .playing:hover {
        background: #c82333 !important;
      }
    </style>
  </head>
  <body>
    <div class="toolbar">
      <div class="file-input">
        <input type="file" id="fileInput" multiple accept=".dot" />
        <label for="fileInput">Load .dot files</label>
      </div>

      <div class="step-controls">
        <button id="prevBtn" disabled>◀</button>
        <button id="nextBtn" disabled>▶</button>
        <span>Step:</span>
        <input type="number" id="stepInput" min="1" disabled />
        <span>Jump by:</span>
        <input type="number" id="stepByInput" min="1" value="1" />
        <button id="playBtn" disabled>Play</button>
      </div>

      <div class="step-info">
        <span id="fileCount">No files loaded</span>
      </div>
    </div>

    <div id="graph"></div>

    <script>
      let dotStrings = [];
      let currentIndex = 0;
      let autoInterval = null;

      // Initialize the graphviz renderer
      const graphviz = d3
        .select("#graph")
        .graphviz()
        .transition(function () {
          return d3.transition("main").ease(d3.easeLinear).duration(500);
        });

      // Update step counter and input
      function updateStepCounter() {
        const stepInput = document.getElementById("stepInput");
        if (dotStrings.length > 0) {
          stepInput.value = currentIndex + 1;
          stepInput.max = dotStrings.length;
        } else {
          stepInput.value = "";
          stepInput.max = 0;
        }
      }

      // Update file count display
      function updateFileCount(count) {
        const fileCount = document.getElementById("fileCount");
        if (count === 0) {
          fileCount.textContent = "No files loaded";
        } else {
          fileCount.textContent = `${count} step${count > 1 ? "s" : ""} loaded`;
        }
      }

      // Get current step by value
      function getStepBy() {
        const stepBy = parseInt(document.getElementById("stepByInput").value);
        return isNaN(stepBy) || stepBy < 1 ? 1 : stepBy;
      }

      // Jump to specific step
      function jumpToStep(step) {
        if (step >= 1 && step <= dotStrings.length) {
          currentIndex = step - 1;
          renderCurrentGraph();
        }
      }

      // Render current graph
      function renderCurrentGraph() {
        if (dotStrings.length === 0) return;
        graphviz.renderDot(dotStrings[currentIndex]);
        updateStepCounter();
        updateButtons();
      }

      // Update button states
      function updateButtons() {
        const hasFiles = dotStrings.length > 0;
        document.getElementById("prevBtn").disabled =
          !hasFiles || currentIndex === 0;
        document.getElementById("nextBtn").disabled =
          !hasFiles || currentIndex === dotStrings.length - 1;
        document.getElementById("playBtn").disabled =
          !hasFiles || dotStrings.length < 2;
        document.getElementById("stepInput").disabled = !hasFiles;
      }

      // Toggle play/stop
      function togglePlayback() {
        const playBtn = document.getElementById("playBtn");

        if (autoInterval) {
          // Stop playing
          clearInterval(autoInterval);
          autoInterval = null;
          playBtn.textContent = "Play";
          playBtn.classList.remove("playing");
        } else {
          // Start playing
          autoInterval = setInterval(function () {
            const stepBy = getStepBy();
            const nextIndex = currentIndex + stepBy;

            if (nextIndex < dotStrings.length) {
              currentIndex = nextIndex;
              renderCurrentGraph();
            } else if (currentIndex < dotStrings.length - 1) {
              // Jump to the last step if we would overshoot
              currentIndex = dotStrings.length - 1;
              renderCurrentGraph();
              togglePlayback(); // Stop at the end
            } else {
              // Stop at the end, don't loop
              togglePlayback();
            }
          }, 600);
          playBtn.textContent = "Stop";
          playBtn.classList.add("playing");
        }
      }

      // File input handler
      document
        .getElementById("fileInput")
        .addEventListener("change", async function (e) {
          const files = Array.from(e.target.files);
          if (files.length === 0) return;

          try {
            // Sort files by name for consistent ordering
            files.sort((a, b) => a.name.localeCompare(b.name));

            dotStrings = [];
            currentIndex = 0;

            // Read all files
            for (const file of files) {
              const content = await readFileContent(file);
              if (content.trim()) {
                dotStrings.push(content);
              }
            }

            updateFileCount(dotStrings.length);
            updateStepCounter();
            updateButtons();

            // Render first graph if available
            if (dotStrings.length > 0) {
              renderCurrentGraph();
            }
          } catch (error) {
            alert("Error reading files: " + error.message);
          }
        });

      // Helper function to read file content
      function readFileContent(file) {
        return new Promise((resolve, reject) => {
          const reader = new FileReader();
          reader.onload = (e) => resolve(e.target.result);
          reader.onerror = (e) => reject(new Error("Failed to read file"));
          reader.readAsText(file);
        });
      }

      // Event handlers
      document.getElementById("nextBtn").addEventListener("click", function () {
        const stepBy = getStepBy();
        const nextIndex = Math.min(
          currentIndex + stepBy,
          dotStrings.length - 1,
        );
        if (nextIndex > currentIndex) {
          currentIndex = nextIndex;
          renderCurrentGraph();
        }
      });

      document.getElementById("prevBtn").addEventListener("click", function () {
        const stepBy = getStepBy();
        const prevIndex = Math.max(currentIndex - stepBy, 0);
        if (prevIndex < currentIndex) {
          currentIndex = prevIndex;
          renderCurrentGraph();
        }
      });

      document
        .getElementById("playBtn")
        .addEventListener("click", togglePlayback);

      document
        .getElementById("stepInput")
        .addEventListener("change", function () {
          const step = parseInt(this.value);
          if (!isNaN(step)) {
            jumpToStep(step);
          }
        });

      document
        .getElementById("stepInput")
        .addEventListener("keypress", function (e) {
          if (e.key === "Enter") {
            const step = parseInt(this.value);
            if (!isNaN(step)) {
              jumpToStep(step);
            }
          }
        });

      // Initialize
      updateStepCounter();
      updateFileCount(0);
      updateButtons();
    </script>
  </body>
</html>