<!doctype html>
<html lang="en-us">
<head>
  <meta charset="utf-8">
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <style>
    .vtk_test_suite {
      padding-right: 0;
      margin-left: auto;
      margin-right: auto;
      display: block;
    }
    body {
      background-color: black;
    }
    /* the canvas *must not* have any border or padding, or mouse coords will be wrong */
    canvas.vtk_test_suite {
      border: 0px none;
      background-color: black;
    }
  </style>
</head>
<body>
  <canvas class="vtk_test_suite" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1></canvas>
  <script>
    var wasmStdOutErr = Array();
    var exitCodeSent = false;
    function closeWindow() {
      try {
        window.close();
      }
      catch (err) {
        console.error(`Failed to close window ${err}`);
      }
    }
    function postExitCode(code) {
      return new Promise((resolve) => {
        try {
          const req = new XMLHttpRequest;
          req.open("POST", "exit");
          req.send(code);
          req.onload = (e) => {
            if (req.readyState === req.DONE && req.status === 200) {
              if (req.responseText !== 'undefined') {
                resolve(req.responseText);
              }
            }
          };
        } catch (err) {
          reject(err);
        }
      })
    };
    function flushConsoleMessages() {
      return new Promise((resolve, reject) => {
        try {
          if (!wasmStdOutErr.length) {
            // Nothing was printed by C++ test, this is fine.
            resolve();
          } else {
            const req = new XMLHttpRequest;
            const encoder = new TextEncoder();
            let view = encoder.encode(wasmStdOutErr.join("\n"));
            wasmStdOutErr.length = 0;
            req.open("POST", "console_output");
            req.send(view);
            req.onload = (e) => {
              if (req.readyState === req.DONE && req.status === 200) {
                resolve();
              }
            };
          }
        }
        catch (err) {
          reject(err)
        }
      });
    };
    function finalize(code) {
      if (exitCodeSent) {
        return;
      }
      exitCodeSent = true;
      flushConsoleMessages()
        .then(() => {
          postExitCode(code)
            .then((responseText) => {
              if (responseText.includes("close-window")) {
                closeWindow();
              } else {
                console.log("Leaving window open.");
              }
            }).catch((err) => {
              console.error(`postExitCode failed. ${err}`);
              closeWindow();
            })
        })
        .catch((err) => {
          console.error(`flushConsoleMessages failed. ${err}`);
          closeWindow();
        });
    };
    /**
     * Lock canvas size for VTK rendering unit tests. These settings make the canvas ignore
     * resize events from the parent HTML element.
     */
    function lockCanvasSize(wasmRuntime) {
      try {
        if (typeof wasmRuntime._setDefaultExpandVTKCanvasToContainer !== 'undefined') {
          wasmRuntime._setDefaultExpandVTKCanvasToContainer(false);
        }
        if (typeof wasmRuntime._setDefaultInstallHTMLResizeObserver !== 'undefined') {
          wasmRuntime._setDefaultInstallHTMLResizeObserver(false);
        }
      } catch (_e) { }
    }
    window.onunhandledrejection = (event) => {
      let message = `Uncaught rejection from ${event.promise}: ${event.reason}`;
      console.error(message);
      wasmStdOutErr.push(message);
      finalize(1);
      return true;
    };
    window.onerror = (message, source, lineno, colno, error) => {
      if (error !== null) {
        console.error(error);
        wasmStdOutErr.push(`${error.message} at ${source}:${lineno}#${colno}`)
      }
      else {
        console.error(`${message} at ${source}:${lineno}#${colno}`);
        wasmStdOutErr.push(`${message} at ${source}:${lineno}#${colno}`)
      }
      finalize(1);
      return true;
    };
    var vtkWasmRuntime = null;
    var Module = {
      print: (() => {
        return (...args) => {
          const text = args.join(" ");
          if (text.length > 0) {
            wasmStdOutErr.push(text);
            console.log(text);
          }
        };
      })(),
      printErr: (() => {
        return (...args) => {
          const text = args.join(" ");
          if (text.length > 0) {
            wasmStdOutErr.push(text);
            console.error(text);
            // Some VTK tests write to stderr when they should infact write to stdout.
            // This block only posts exit code when the message has the word "Error" in all it's case avatars.
            if (text.includes('ERROR') || text.includes("Error") || text.includes("error")) {
              // catch some more of those "ERROR" messages to give some context before finalizing.
              setTimeout(finalize, 2000, 1);
            }
          }
        };
      })(),
      canvas: (() => {
        let canvasElement = document.getElementById("canvas");
        canvasElement.addEventListener("click", _e => canvasElement.focus());
        canvasElement.addEventListener("webglcontextlost", (e) => { alert("WebGL context lost. You will need to reload the page."); e.preventDefault(); }, false);
        return canvasElement;
      })(),
      preRun: (runtime) => {
        // cache the VTK wasm runtime instance.
        vtkWasmRuntime = runtime;
      },
      onRuntimeInitialized: () => {
        if (vtkWasmRuntime !== null) {
          lockCanvasSize(vtkWasmRuntime);
        }
      },
      onExit: finalize,
      arguments: [{{ test_args }}]
    };
  </script>
  {% if js_type == "module" %}
  <script type="module">
    import initModule from "./{{ js_filename }}";
    initModule(Module);
  </script>
  {% else %}
  <script async src="{{ js_filename }}"></script>
  {% endif %}
</body>
</html>
