var jsPsychCategorizeAnimation = (function (jspsych) {
  'use strict';

  const info = {
      name: "categorize-animation",
      parameters: {
          /** Array of paths to image files. */
          stimuli: {
              type: jspsych.ParameterType.IMAGE,
              pretty_name: "Stimuli",
              default: undefined,
              array: true,
          },
          /** The key to indicate correct response */
          key_answer: {
              type: jspsych.ParameterType.KEY,
              pretty_name: "Key answer",
              default: undefined,
          },
          /** Array containing the key(s) the subject is allowed to press to respond to the stimuli. */
          choices: {
              type: jspsych.ParameterType.KEYS,
              pretty_name: "Choices",
              default: "ALL_KEYS",
          },
          /** Text to describe correct answer. */
          text_answer: {
              type: jspsych.ParameterType.HTML_STRING,
              pretty_name: "Text answer",
              default: null,
          },
          /** String to show when subject gives correct answer */
          correct_text: {
              type: jspsych.ParameterType.HTML_STRING,
              pretty_name: "Correct text",
              default: "Correct.",
          },
          /** String to show when subject gives incorrect answer. */
          incorrect_text: {
              type: jspsych.ParameterType.HTML_STRING,
              pretty_name: "Incorrect text",
              default: "Wrong.",
          },
          /** Duration to display each image. */
          frame_time: {
              type: jspsych.ParameterType.INT,
              pretty_name: "Frame time",
              default: 500,
          },
          /** How many times to display entire sequence. */
          sequence_reps: {
              type: jspsych.ParameterType.INT,
              pretty_name: "Sequence repetitions",
              default: 1,
          },
          /** If true, subject can response before the animation sequence finishes */
          allow_response_before_complete: {
              type: jspsych.ParameterType.BOOL,
              pretty_name: "Allow response before complete",
              default: false,
          },
          /** How long to show feedback */
          feedback_duration: {
              type: jspsych.ParameterType.INT,
              pretty_name: "Feedback duration",
              default: 2000,
          },
          /** Any content here will be displayed below the stimulus. */
          prompt: {
              type: jspsych.ParameterType.HTML_STRING,
              pretty_name: "Prompt",
              default: null,
          },
          /**
           * If true, the images will be drawn onto a canvas element (prevents blank screen between consecutive images in some browsers).
           * If false, the image will be shown via an img element.
           */
          render_on_canvas: {
              type: jspsych.ParameterType.BOOL,
              pretty_name: "Render on canvas",
              default: true,
          },
      },
  };
  /**
   * **categorize-animation**
   *
   * jsPsych plugin for categorization trials with feedback and animated stimuli
   *
   * @author Josh de Leeuw
   * @see {@link https://www.jspsych.org/plugins/jspsych-categorize-animation/ categorize-animation plugin documentation on jspsych.org}
   */
  class CategorizeAnimationPlugin {
      constructor(jsPsych) {
          this.jsPsych = jsPsych;
      }
      trial(display_element, trial) {
          var animate_frame = 0;
          var reps = 0;
          var showAnimation = true;
          var responded = false;
          var timeoutSet = false;
          var correct;
          if (trial.render_on_canvas) {
              // first clear the display element (because the render_on_canvas method appends to display_element instead of overwriting it with .innerHTML)
              if (display_element.hasChildNodes()) {
                  // can't loop through child list because the list will be modified by .removeChild()
                  while (display_element.firstChild) {
                      display_element.removeChild(display_element.firstChild);
                  }
              }
              var canvas = document.createElement("canvas");
              canvas.id = "jspsych-categorize-animation-stimulus";
              canvas.style.margin = "0";
              canvas.style.padding = "0";
              display_element.insertBefore(canvas, null);
              var ctx = canvas.getContext("2d");
              if (trial.prompt !== null) {
                  var prompt_div = document.createElement("div");
                  prompt_div.id = "jspsych-categorize-animation-prompt";
                  prompt_div.style.visibility = "hidden";
                  prompt_div.innerHTML = trial.prompt;
                  display_element.insertBefore(prompt_div, canvas.nextElementSibling);
              }
              var feedback_div = document.createElement("div");
              display_element.insertBefore(feedback_div, display_element.nextElementSibling);
          }
          const update_display = () => {
              if (showAnimation) {
                  if (trial.render_on_canvas) {
                      display_element.querySelector("#jspsych-categorize-animation-stimulus").style.visibility = "visible";
                      var img = new Image();
                      img.src = trial.stimuli[animate_frame];
                      canvas.height = img.naturalHeight;
                      canvas.width = img.naturalWidth;
                      ctx.drawImage(img, 0, 0);
                  }
                  else {
                      display_element.innerHTML +=
                          '<img src="' +
                              trial.stimuli[animate_frame] +
                              '" class="jspsych-categorize-animation-stimulus"></img>';
                  }
              }
              if (!responded && trial.allow_response_before_complete) {
                  // in here if the user can respond before the animation is done
                  if (trial.prompt !== null) {
                      if (trial.render_on_canvas) {
                          prompt_div.style.visibility = "visible";
                      }
                      else {
                          display_element.innerHTML += trial.prompt;
                      }
                  }
                  if (trial.render_on_canvas) {
                      if (!showAnimation) {
                          canvas.remove();
                      }
                  }
              }
              else if (!responded) {
                  // in here if the user has to wait to respond until animation is done.
                  // if this is the case, don't show the prompt until the animation is over.
                  if (!showAnimation) {
                      if (trial.prompt !== null) {
                          if (trial.render_on_canvas) {
                              prompt_div.style.visibility = "visible";
                          }
                          else {
                              display_element.innerHTML += trial.prompt;
                          }
                      }
                      if (trial.render_on_canvas) {
                          canvas.remove();
                      }
                  }
              }
              else {
                  // user has responded if we get here.
                  // show feedback
                  var feedback_text = "";
                  if (correct) {
                      feedback_text = trial.correct_text.replace("%ANS%", trial.text_answer);
                  }
                  else {
                      feedback_text = trial.incorrect_text.replace("%ANS%", trial.text_answer);
                  }
                  if (trial.render_on_canvas) {
                      if (trial.prompt !== null) {
                          prompt_div.remove();
                      }
                      feedback_div.innerHTML = feedback_text;
                  }
                  else {
                      display_element.innerHTML += feedback_text;
                  }
                  // set timeout to clear feedback
                  if (!timeoutSet) {
                      timeoutSet = true;
                      this.jsPsych.pluginAPI.setTimeout(() => {
                          endTrial();
                      }, trial.feedback_duration);
                  }
              }
          };
          // show animation
          var animate_interval = setInterval(() => {
              if (!trial.render_on_canvas) {
                  display_element.innerHTML = ""; // clear everything
              }
              animate_frame++;
              if (animate_frame == trial.stimuli.length) {
                  animate_frame = 0;
                  reps++;
                  // check if reps complete //
                  if (trial.sequence_reps != -1 && reps >= trial.sequence_reps) {
                      // done with animation
                      showAnimation = false;
                  }
              }
              update_display();
          }, trial.frame_time);
          update_display();
          const endTrial = () => {
              clearInterval(animate_interval); // stop animation!
              display_element.innerHTML = ""; // clear everything
              this.jsPsych.finishTrial(trial_data);
          };
          var keyboard_listener;
          var trial_data = {};
          // @ts-expect-error Error is: Unreachable code detected: Not all code paths return a value
          const after_response = (info) => {
              // ignore the response if animation is playing and subject
              // not allowed to respond before it is complete
              if (!trial.allow_response_before_complete && showAnimation) {
                  return false;
              }
              correct = false;
              if (this.jsPsych.pluginAPI.compareKeys(trial.key_answer, info.key)) {
                  correct = true;
              }
              responded = true;
              trial_data = {
                  stimulus: trial.stimuli,
                  rt: info.rt,
                  correct: correct,
                  response: info.key,
              };
              this.jsPsych.pluginAPI.cancelKeyboardResponse(keyboard_listener);
          };
          keyboard_listener = this.jsPsych.pluginAPI.getKeyboardResponse({
              callback_function: after_response,
              valid_responses: trial.choices,
              rt_method: "performance",
              persist: true,
              allow_held_key: false,
          });
      }
  }
  CategorizeAnimationPlugin.info = info;

  return CategorizeAnimationPlugin;

})(jsPsychModule);
