// Metro module 318 (f319).
import _createClass from "./_createClass";
import _classCallCheck from "./_classCallCheck";
let c330_2;
let FillRateHelper;
let env330 = {};
const Info = function Info() {
  _classCallCheck(this, Info);
  this.any_blank_count = 0;
  this.any_blank_ms = 0;
  this.any_blank_speed_sum = 0;
  this.mostly_blank_count = 0;
  this.mostly_blank_ms = 0;
  this.pixels_blank = 0;
  this.pixels_sampled = 0;
  this.pixels_scrolled = 0;
  this.total_time_spent = 0;
  this.sample_count = 0;
};
c330_2 = _createClass(Info);
env330[3] = [];
env330[4] = 10;
env330[5] = null;
FillRateHelper = function FillRateHelper(a0) {
  _classCallCheck(this, FillRateHelper);
  this._anyBlankStartTime = null;
  this._enabled = false;
  this._info = new c330_2();
  this._mostlyBlankStartTime = null;
  this._samplesStartTime = null;
  this._listMetrics = a0;
  this._enabled = (env330[5] || 0) > Math.random();
  this._resetData();
};
export default _createClass(FillRateHelper, [{
  key: "activate",
  value: function activate() {
    if (this._enabled && this._samplesStartTime == null) {
      this._samplesStartTime = global.performance.now();
    }
  }
}, {
  key: "deactivateAndFlush",
  value: function deactivateAndFlush() {
    if (this._enabled) {
      const _samplesStartTime = this._samplesStartTime;
      if (_samplesStartTime != null) {
        if (this._info.sample_count < env330[4]) {
          this._resetData();
        } else {
          let c23650_0 = {
            ...this._info,
            total_time_spent: global.performance.now() - _samplesStartTime
          };
          env330[3].forEach((item) => item(c23650_0));
          this._resetData();
        }
      }
    }
  }
}, {
  key: "computeBlankness",
  value: function computeBlankness(a0, a1, a2) {
    let r68, r69, r91, r92;
    if (this._enabled && a0.getItemCount(a0.data) !== 0 && !(a1.last < a1.first) && this._samplesStartTime != null) {
      const { dOffset, offset, velocity, visibleLength } = a2;
      const _info = this._info;
      _info.sample_count = _info.sample_count + 1;
      const _info2 = this._info;
      _info2.pixels_sampled = _info2.pixels_sampled + Math.round(visibleLength);
      const _info3 = this._info;
      _info3.pixels_scrolled = _info3.pixels_scrolled + Math.round(Math.abs(dOffset));
      const r46 = Math.round(1000 * Math.abs(velocity));
      const _anyBlankStartTime = global.performance.now();
      if (this._anyBlankStartTime != null) {
        const _info4 = this._info;
        _info4.any_blank_ms = _info4.any_blank_ms + (_anyBlankStartTime - this._anyBlankStartTime);
      }
      this._anyBlankStartTime = null;
      if (this._mostlyBlankStartTime != null) {
        const _info5 = this._info;
        _info5.mostly_blank_ms = _info5.mostly_blank_ms + (_anyBlankStartTime - this._mostlyBlankStartTime);
      }
      L14: {
        this._mostlyBlankStartTime = null;
        const first = a1.first;
        const cellMetrics2 = this._listMetrics.getCellMetrics(first, a0);
        const last = a1.last;
        r68 = cellMetrics2;
        r69 = first;
        if (first <= last) {
          let r70 = first;
          if (cellMetrics2) {
            const isMounted = cellMetrics2.isMounted;
            r70 = first;
            r68 = cellMetrics2;
            r69 = r70;
            if (isMounted) {
              break L14;
            }
          }
          while (true) {
            const cellMetrics3 = this._listMetrics.getCellMetrics(r70, a0);
            const r75 = r70 + 1;
            const last2 = a1.last;
            r68 = cellMetrics3;
            r69 = r75;
            if (!(r75 <= last2)) {
              break;
            }
            r70 = r75;
            if (cellMetrics3) {
              const isMounted2 = cellMetrics3.isMounted;
              r70 = r75;
              r68 = cellMetrics3;
              r69 = r70;
              if (isMounted2) {
                break;
              }
            }
          }
        }
      }
      const r79 = r68 && r69 > 0 ? Math.min(visibleLength, Math.max(0, r68.offset - offset)) : 0;
      L24: {
        const last3 = a1.last;
        const cellMetrics = this._listMetrics.getCellMetrics(last3, a0);
        const first2 = a1.first;
        r91 = cellMetrics;
        r92 = last3;
        if (last3 >= first2) {
          let r93 = last3;
          if (cellMetrics) {
            const isMounted3 = cellMetrics.isMounted;
            r93 = last3;
            r91 = cellMetrics;
            r92 = r93;
            if (isMounted3) {
              break L24;
            }
          }
          while (true) {
            const cellMetrics4 = this._listMetrics.getCellMetrics(r93, a0);
            const r98 = r93 - 1;
            const first3 = a1.first;
            r91 = cellMetrics4;
            r92 = r98;
            if (!(r98 >= first3)) {
              break;
            }
            r93 = r98;
            if (cellMetrics4) {
              const isMounted4 = cellMetrics4.isMounted;
              r93 = r98;
              r91 = cellMetrics4;
              r92 = r93;
              if (isMounted4) {
                break;
              }
            }
          }
        }
      }
      const r121 = Math.round(r79 + (r91 ? r92 < a0.getItemCount(a0.data) - 1 ? Math.min(visibleLength, Math.max(0, offset + visibleLength - (r91.offset + r91.length))) : 0 : 0));
      const r122 = r121 / visibleLength;
      if (r122 > 0) {
        this._anyBlankStartTime = _anyBlankStartTime;
        const _info6 = this._info;
        _info6.any_blank_speed_sum = _info6.any_blank_speed_sum + r46;
        const _info7 = this._info;
        _info7.any_blank_count = _info7.any_blank_count + 1;
        const _info8 = this._info;
        _info8.pixels_blank = _info8.pixels_blank + r121;
        if (r122 > 0.5) {
          this._mostlyBlankStartTime = _anyBlankStartTime;
          const _info9 = this._info;
          _info9.mostly_blank_count = _info9.mostly_blank_count + 1;
        }
      } else if (r46 < 0.01 || Math.abs(dOffset) < 1) {
        this.deactivateAndFlush();
      }
      return r122;
    }
    return 0;
  }
}, {
  key: "enabled",
  value: function enabled() {
    return this._enabled;
  }
}, {
  key: "_resetData",
  value: function _resetData() {
    this._anyBlankStartTime = null;
    this._info = new c330_2();
    this._mostlyBlankStartTime = null;
    this._samplesStartTime = null;
  }
}], [{
  key: "addListener",
  value: function addListener(a0) {
    if (env330[5] === null) {
      console.warn("Call `FillRateHelper.setSampleRate` before `addListener`.");
    }
    env330[3].push(a0);
    return {
      remove: () => {
        env330[3] = env330[3].filter((item) => a0 !== item);
      }
    };
  }
}, {
  key: "setSampleRate",
  value: function setSampleRate(a0) {
    env330[5] = a0;
  }
}, {
  key: "setMinSampleCount",
  value: function setMinSampleCount(a0) {
    env330[4] = a0;
  }
}]);