(function () {
  var DEBUG = false;
  var log = (message) => {
    if (DEBUG) {
      console.log(JSON.stringify(message));
    }
  };
  
  var storedPatterns;
  var positions = [];
  var dragHandler = (position) => {
    positions.push(position);
  
    debounce().then(() => {
      log(positions.length);
  
      var CIRCLE_RADIUS = 25;
      var CIRCLE_RADIUS_2 = CIRCLE_RADIUS * CIRCLE_RADIUS;
  
      var circles = [
        { x: 25, y: 25, i: 0 },
        { x: 87, y: 25, i: 1 },
        { x: 150, y: 25, i: 2 },
        { x: 25, y: 87, i: 3 },
        { x: 87, y: 87, i: 4 },
        { x: 150, y: 87, i: 5 },
        { x: 25, y: 150, i: 6 },
        { x: 87, y: 150, i: 7 },
        { x: 150, y: 150, i: 8 },
      ];
      var pattern = [];
  
      var step = Math.floor(positions.length / 100) + 1;
  
      var p, a, b, circle;
  
      for (var i = 0; i < positions.length; i += step) {
        p = positions[i];
  
        circle = circles[0];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(0, 1);
          }
        }
  
        circle = circles[1];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(1, 1);
          }
        }
  
        circle = circles[2];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(2, 1);
          }
        }
  
        circle = circles[3];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(3, 1);
          }
        }
  
        circle = circles[4];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(4, 1);
          }
        }
  
        circle = circles[5];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(5, 1);
          }
        }
  
        circle = circles[6];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(6, 1);
          }
        }
        circle = circles[7];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(7, 1);
          }
        }
  
        circle = circles[8];
        if (circle) {
          a = p.x - circle.x;
          b = p.y - circle.y;
          if (CIRCLE_RADIUS_2 - (a * a + b * b) >= 0) {
            pattern.push(circle.i);
            circles.splice(8, 1);
          }
        }
      }
      positions = [];
  
      pattern = pattern.join("");
  
      if (pattern) {
        if (storedPatterns[pattern]) {
          var app = storedPatterns[pattern].app;
          if (!!app && !!app.src) {
            if (storedPatterns.settings) {
              if (storedPatterns.settings.lockDisabled) {
                Bangle.setLCDPower(true);
              }
            }
  
            Bangle.removeListener("drag", dragHandler);
            load(app.src);
          }
        }
      }
    });
  };
  
  var debounceTimeoutId;
  var debounce = (delay) => {
    if (debounceTimeoutId) {
      clearTimeout(debounceTimeoutId);
    }
  
    return new Promise((resolve) => {
      debounceTimeoutId = setTimeout(() => {
        debounceTimeoutId = undefined;
        resolve();
      }, delay || 500);
    });
  };

  var sui = Bangle.setUI;
  Bangle.setUI = function (mode, cb) {
    sui(mode, cb);
    if (!mode) {
      Bangle.removeListener("drag", dragHandler);
      storedPatterns = {};
      return;
    }
    if (!mode.startsWith("clock")) {
      storedPatterns = {};
      Bangle.removeListener("drag", dragHandler);
      return;
    }

    var storage = require("Storage");
    storedPatterns = storage.readJSON("ptlaunch.patterns.json", 1) || {};
    if (Object.keys(storedPatterns).length > 0) {
      Bangle.on("drag", dragHandler);
      if (storedPatterns.settings) {
        if (storedPatterns.settings.lockDisabled) {
          Bangle.setOptions({ lockTimeout: 1000 * 60 * 60 * 24 * 365 });
        }
      }
    }
  };
})();