/**
 * Utility for debugging SVG rendering issues
 */

/**
 * Adds a visible debug overlay to the SVG to test z-index rendering
 * @param {SVGElement} svgElement - The SVG DOM element
 */
export function addDebugOverlay(svgElement) {
  if (!svgElement) return;

  const svgNS = "http://www.w3.org/2000/svg";

  // Create a debug group at the highest level
  const debugGroup = document.createElementNS(svgNS, "g");
  debugGroup.setAttribute("id", "debug-overlay");
  debugGroup.setAttribute(
    "style",
    "pointer-events: none; z-index: 10000; position: relative;"
  );

  // Add a semi-transparent rectangle across the entire SVG
  const svgWidth = svgElement.viewBox?.baseVal?.width || 1000;
  const svgHeight = svgElement.viewBox?.baseVal?.height || 1000;

  const rect = document.createElementNS(svgNS, "rect");
  rect.setAttribute("x", "0");
  rect.setAttribute("y", "0");
  rect.setAttribute("width", svgWidth.toString());
  rect.setAttribute("height", svgHeight.toString());
  rect.setAttribute("fill", "rgba(255, 255, 0, 0.1)");
  rect.setAttribute("stroke", "none");

  // Add some test circles at fixed positions
  const testPositions = [
    { x: 50, y: 50, color: "red" },
    { x: 150, y: 150, color: "blue" },
    { x: 250, y: 250, color: "green" },
    { x: 350, y: 350, color: "purple" },
  ];

  testPositions.forEach((pos, i) => {
    const testCircle = document.createElementNS(svgNS, "circle");
    testCircle.setAttribute("cx", pos.x.toString());
    testCircle.setAttribute("cy", pos.y.toString());
    testCircle.setAttribute("r", "20");
    testCircle.setAttribute("fill", pos.color);
    testCircle.setAttribute("fill-opacity", "0.5");
    testCircle.setAttribute("stroke", "black");
    testCircle.setAttribute("stroke-width", "2");
    testCircle.setAttribute("class", "debug-circle");

    debugGroup.appendChild(testCircle);
  });

  // Add the debug group to the SVG
  svgElement.appendChild(debugGroup);

  console.log("Debug overlay added to SVG");
}

/**
 * Checks if clue points are visible and fixes rendering issues
 * @param {SVGElement} svgElement - The SVG DOM element
 */
export function fixCluePointsRendering(svgElement) {
  if (!svgElement) return;

  // Find the clue points overlay group
  let overlayGroup = svgElement.querySelector(".clue-points-overlay");

  // If no overlay group exists, create one
  if (!overlayGroup) {
    console.log("No clue points overlay found, creating one");
    overlayGroup = document.createElementNS("http://www.w3.org/2000/svg", "g");
    overlayGroup.setAttribute("class", "clue-points-overlay");
    overlayGroup.setAttribute(
      "style",
      "pointer-events: all !important; z-index: 9999 !important; position: relative !important;"
    );
    svgElement.appendChild(overlayGroup);
  }

  // Find all clue points
  const cluePoints = svgElement.querySelectorAll(".clue-point");
  const clickAreas = svgElement.querySelectorAll(".clue-click-area");

  console.log(
    `Found ${cluePoints.length} clue points and ${clickAreas.length} click areas`
  );

  // Ensure all clue points are in the overlay group and have proper styles
  cluePoints.forEach((point, i) => {
    // Get original coordinates if available
    const originalCx =
      point.getAttribute("data-original-cx") || point.getAttribute("cx");
    const originalCy =
      point.getAttribute("data-original-cy") || point.getAttribute("cy");

    // Clone the point to remove any existing event handlers and styling issues
    const newPoint = point.cloneNode(true);

    // Restore original coordinates if they were saved
    if (originalCx) newPoint.setAttribute("cx", originalCx);
    if (originalCy) newPoint.setAttribute("cy", originalCy);

    // Store original coordinates for future reference
    if (originalCx) newPoint.setAttribute("data-original-cx", originalCx);
    if (originalCy) newPoint.setAttribute("data-original-cy", originalCy);

    // Apply explicit styles to ensure visibility
    newPoint.setAttribute(
      "style",
      "fill: #ff9800; stroke: #e65100; stroke-width: 3px; " +
        "pointer-events: all !important; cursor: pointer !important; " +
        "z-index: 9999 !important; position: relative !important; " +
        "r: 14px; fill-opacity: 1; stroke-opacity: 1; " +
        "filter: drop-shadow(0px 0px 5px rgba(0, 0, 0, 0.7));"
    );

    // Move to overlay group
    if (point.parentNode !== overlayGroup) {
      // Remove from current location
      if (point.parentNode) {
        point.parentNode.removeChild(point);
      }

      // Add to overlay group
      overlayGroup.appendChild(newPoint);
    }

    // Update the corresponding click area position too
    if (clickAreas[i]) {
      clickAreas[i].setAttribute("cx", originalCx || point.getAttribute("cx"));
      clickAreas[i].setAttribute("cy", originalCy || point.getAttribute("cy"));
    }
  });

  // Move the overlay group to be the last child of the SVG
  svgElement.appendChild(overlayGroup);

  console.log("Clue points rendering fixed");
}

// New function to ensure clue circles match original map
export function fixCluePositionsFromOriginalMap(svgElement) {
  if (!svgElement) return;

  // Fetch the original map SVG to get circle positions
  fetch("/images/map.svg")
    .then((response) => response.text())
    .then((svgText) => {
      const parser = new DOMParser();
      const mapDoc = parser.parseFromString(svgText, "image/svg+xml");

      // Get all circles from original map
      const originalCircles = Array.from(mapDoc.querySelectorAll("circle"));
      console.log(
        `Found ${originalCircles.length} circles in original map for position fixing`
      );

      // Get current clue points
      const cluePoints = svgElement.querySelectorAll(".clue-point");
      console.log(`Found ${cluePoints.length} clue points to fix positions`);

      // Only adjust positions if we have both original circles and clue points
      if (originalCircles.length > 0 && cluePoints.length > 0) {
        // Get the clue overlay group
        let overlayGroup = svgElement.querySelector(".clue-points-overlay");

        if (!overlayGroup) return;

        // Update each clue point to match original circle position
        cluePoints.forEach((point, i) => {
          if (i < originalCircles.length) {
            const originalCircle = originalCircles[i];
            const cx = originalCircle.getAttribute("cx") || "0";
            const cy = originalCircle.getAttribute("cy") || "0";

            // Update position
            point.setAttribute("cx", cx);
            point.setAttribute("cy", cy);
            point.setAttribute("data-original-cx", cx);
            point.setAttribute("data-original-cy", cy);

            // Update the corresponding click area
            const clickArea = svgElement.querySelector(
              `.clue-click-area[data-index="${i}"]`
            );
            if (clickArea) {
              clickArea.setAttribute("cx", cx);
              clickArea.setAttribute("cy", cy);
            }
          }
        });

        console.log("Clue positions fixed to match original map");
      }
    })
    .catch((error) => {
      console.error("Error fixing clue positions from original map:", error);
    });
}