project/node_modules/echarts/lib/scale/Time.js

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/


/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import { __extends } from "tslib";
/*
* A third-party license is embedded for some of the code in this file:
* The "scaleLevels" was originally copied from "d3.js" with some
* modifications made for this project.
* (See more details in the comment on the definition of "scaleLevels" below.)
* The use of the source code of this file is also subject to the terms
* and consitions of the license of "d3.js" (BSD-3Clause, see
* </licenses/LICENSE-d3>).
*/
// [About UTC and local time zone]:
// In most cases, `number.parseDate` will treat input data string as local time
// (except time zone is specified in time string). And `format.formateTime` returns
// local time by default. option.useUTC is false by default. This design has
// considered these common cases:
// (1) Time that is persistent in server is in UTC, but it is needed to be displayed
// in local time by default.
// (2) By default, the input data string (e.g., '2011-01-02') should be displayed
// as its original time, without any time difference.
import * as numberUtil from '../util/number.js';
import { ONE_SECOND, ONE_MINUTE, ONE_HOUR, ONE_DAY, ONE_YEAR, format, leveledFormat, getUnitValue, timeUnits, fullLeveledFormatter, getPrimaryTimeUnit, isPrimaryTimeUnit, getDefaultFormatPrecisionOfInterval, fullYearGetterName, monthSetterName, fullYearSetterName, dateSetterName, hoursGetterName, hoursSetterName, minutesSetterName, secondsSetterName, millisecondsSetterName, monthGetterName, dateGetterName, minutesGetterName, secondsGetterName, millisecondsGetterName } from '../util/time.js';
import * as scaleHelper from './helper.js';
import IntervalScale from './Interval.js';
import Scale from './Scale.js';
import { warn } from '../util/log.js';
import { filter, isNumber, map } from 'zrender/lib/core/util.js';
// FIXME 公用？
var bisect = function (a, x, lo, hi) {
  while (lo < hi) {
    var mid = lo + hi >>> 1;
    if (a[mid][1] < x) {
      lo = mid + 1;
    } else {
      hi = mid;
    }
  }
  return lo;
};
var TimeScale = /** @class */function (_super) {
  __extends(TimeScale, _super);
  function TimeScale(settings) {
    var _this = _super.call(this, settings) || this;
    _this.type = 'time';
    return _this;
  }
  /**
   * Get label is mainly for other components like dataZoom, tooltip.
   */
  TimeScale.prototype.getLabel = function (tick) {
    var useUTC = this.getSetting('useUTC');
    return format(tick.value, fullLeveledFormatter[getDefaultFormatPrecisionOfInterval(getPrimaryTimeUnit(this._minLevelUnit))] || fullLeveledFormatter.second, useUTC, this.getSetting('locale'));
  };
  TimeScale.prototype.getFormattedLabel = function (tick, idx, labelFormatter) {
    var isUTC = this.getSetting('useUTC');
    var lang = this.getSetting('locale');
    return leveledFormat(tick, idx, labelFormatter, lang, isUTC);
  };
  /**
   * @override
   */
  TimeScale.prototype.getTicks = function () {
    var interval = this._interval;
    var extent = this._extent;
    var ticks = [];
    // If interval is 0, return [];
    if (!interval) {
      return ticks;
    }
    ticks.push({
      value: extent[0],
      level: 0
    });
    var useUTC = this.getSetting('useUTC');
    var innerTicks = getIntervalTicks(this._minLevelUnit, this._approxInterval, useUTC, extent);
    ticks = ticks.concat(innerTicks);
    ticks.push({
      value: extent[1],
      level: 0
    });
    return ticks;
  };
  TimeScale.prototype.calcNiceExtent = function (opt) {
    var extent = this._extent;
    // If extent start and end are same, expand them
    if (extent[0] === extent[1]) {
      // Expand extent
      extent[0] -= ONE_DAY;
      extent[1] += ONE_DAY;
    }
    // If there are no data and extent are [Infinity, -Infinity]
    if (extent[1] === -Infinity && extent[0] === Infinity) {
      var d = new Date();
      extent[1] = +new Date(d.getFullYear(), d.getMonth(), d.getDate());
      extent[0] = extent[1] - ONE_DAY;
    }
    this.calcNiceTicks(opt.splitNumber, opt.minInterval, opt.maxInterval);
  };
  TimeScale.prototype.calcNiceTicks = function (approxTickNum, minInterval, maxInterval) {
    approxTickNum = approxTickNum || 10;
    var extent = this._extent;
    var span = extent[1] - extent[0];
    this._approxInterval = span / approxTickNum;
    if (minInterval != null && this._approxInterval < minInterval) {
      this._approxInterval = minInterval;
    }
    if (maxInterval != null && this._approxInterval > maxInterval) {
      this._approxInterval = maxInterval;
    }
    var scaleIntervalsLen = scaleIntervals.length;
    var idx = Math.min(bisect(scaleIntervals, this._approxInterval, 0, scaleIntervalsLen), scaleIntervalsLen - 1);
    // Interval that can be used to calculate ticks
    this._interval = scaleIntervals[idx][1];
    // Min level used when picking ticks from top down.
    // We check one more level to avoid the ticks are to sparse in some case.
    this._minLevelUnit = scaleIntervals[Math.max(idx - 1, 0)][0];
  };
  TimeScale.prototype.parse = function (val) {
    // val might be float.
    return isNumber(val) ? val : +numberUtil.parseDate(val);
  };
  TimeScale.prototype.contain = function (val) {
    return scaleHelper.contain(this.parse(val), this._extent);
  };
  TimeScale.prototype.normalize = function (val) {
    return scaleHelper.normalize(this.parse(val), this._extent);
  };
  TimeScale.prototype.scale = function (val) {
    return scaleHelper.scale(val, this._extent);
  };
  TimeScale.type = 'time';
  return TimeScale;
}(IntervalScale);
/**
 * This implementation was originally copied from "d3.js"
 * <https://github.com/d3/d3/blob/b516d77fb8566b576088e73410437494717ada26/src/time/scale.js>
 * with some modifications made for this program.
 * See the license statement at the head of this file.
 */
var scaleIntervals = [
// Format                           interval
['second', ONE_SECOND], ['minute', ONE_MINUTE], ['hour', ONE_HOUR], ['quarter-day', ONE_HOUR * 6], ['half-day', ONE_HOUR * 12], ['day', ONE_DAY * 1.2], ['half-week', ONE_DAY * 3.5], ['week', ONE_DAY * 7], ['month', ONE_DAY * 31], ['quarter', ONE_DAY * 95], ['half-year', ONE_YEAR / 2], ['year', ONE_YEAR] // 1Y
];

function isUnitValueSame(unit, valueA, valueB, isUTC) {
  var dateA = numberUtil.parseDate(valueA);
  var dateB = numberUtil.parseDate(valueB);
  var isSame = function (unit) {
    return getUnitValue(dateA, unit, isUTC) === getUnitValue(dateB, unit, isUTC);
  };
  var isSameYear = function () {
    return isSame('year');
  };
  // const isSameHalfYear = () => isSameYear() && isSame('half-year');
  // const isSameQuater = () => isSameYear() && isSame('quarter');
  var isSameMonth = function () {
    return isSameYear() && isSame('month');
  };
  var isSameDay = function () {
    return isSameMonth() && isSame('day');
  };
  // const isSameHalfDay = () => isSameDay() && isSame('half-day');
  var isSameHour = function () {
    return isSameDay() && isSame('hour');
  };
  var isSameMinute = function () {
    return isSameHour() && isSame('minute');
  };
  var isSameSecond = function () {
    return isSameMinute() && isSame('second');
  };
  var isSameMilliSecond = function () {
    return isSameSecond() && isSame('millisecond');
  };
  switch (unit) {
    case 'year':
      return isSameYear();
    case 'month':
      return isSameMonth();
    case 'day':
      return isSameDay();
    case 'hour':
      return isSameHour();
    case 'minute':
      return isSameMinute();
    case 'second':
      return isSameSecond();
    case 'millisecond':
      return isSameMilliSecond();
  }
}
// const primaryUnitGetters = {
//     year: fullYearGetterName(),
//     month: monthGetterName(),
//     day: dateGetterName(),
//     hour: hoursGetterName(),
//     minute: minutesGetterName(),
//     second: secondsGetterName(),
//     millisecond: millisecondsGetterName()
// };
// const primaryUnitUTCGetters = {
//     year: fullYearGetterName(true),
//     month: monthGetterName(true),
//     day: dateGetterName(true),
//     hour: hoursGetterName(true),
//     minute: minutesGetterName(true),
//     second: secondsGetterName(true),
//     millisecond: millisecondsGetterName(true)
// };
// function moveTick(date: Date, unitName: TimeUnit, step: number, isUTC: boolean) {
//     step = step || 1;
//     switch (getPrimaryTimeUnit(unitName)) {
//         case 'year':
//             date[fullYearSetterName(isUTC)](date[fullYearGetterName(isUTC)]() + step);
//             break;
//         case 'month':
//             date[monthSetterName(isUTC)](date[monthGetterName(isUTC)]() + step);
//             break;
//         case 'day':
//             date[dateSetterName(isUTC)](date[dateGetterName(isUTC)]() + step);
//             break;
//         case 'hour':
//             date[hoursSetterName(isUTC)](date[hoursGetterName(isUTC)]() + step);
//             break;
//         case 'minute':
//             date[minutesSetterName(isUTC)](date[minutesGetterName(isUTC)]() + step);
//             break;
//         case 'second':
//             date[secondsSetterName(isUTC)](date[secondsGetterName(isUTC)]() + step);
//             break;
//         case 'millisecond':
//             date[millisecondsSetterName(isUTC)](date[millisecondsGetterName(isUTC)]() + step);
//             break;
//     }
//     return date.getTime();
// }
// const DATE_INTERVALS = [[8, 7.5], [4, 3.5], [2, 1.5]];
// const MONTH_INTERVALS = [[6, 5.5], [3, 2.5], [2, 1.5]];
// const MINUTES_SECONDS_INTERVALS = [[30, 30], [20, 20], [15, 15], [10, 10], [5, 5], [2, 2]];
function getDateInterval(approxInterval, daysInMonth) {
  approxInterval /= ONE_DAY;
  return approxInterval > 16 ? 16
  // Math.floor(daysInMonth / 2) + 1  // In this case we only want one tick between two months.
  : approxInterval > 7.5 ? 7 // TODO week 7 or day 8?
  : approxInterval > 3.5 ? 4 : approxInterval > 1.5 ? 2 : 1;
}
function getMonthInterval(approxInterval) {
  var APPROX_ONE_MONTH = 30 * ONE_DAY;
  approxInterval /= APPROX_ONE_MONTH;
  return approxInterval > 6 ? 6 : approxInterval > 3 ? 3 : approxInterval > 2 ? 2 : 1;
}
function getHourInterval(approxInterval) {
  approxInterval /= ONE_HOUR;
  return approxInterval > 12 ? 12 : approxInterval > 6 ? 6 : approxInterval > 3.5 ? 4 : approxInterval > 2 ? 2 : 1;
}
function getMinutesAndSecondsInterval(approxInterval, isMinutes) {
  approxInterval /= isMinutes ? ONE_MINUTE : ONE_SECOND;
  return approxInterval > 30 ? 30 : approxInterval > 20 ? 20 : approxInterval > 15 ? 15 : approxInterval > 10 ? 10 : approxInterval > 5 ? 5 : approxInterval > 2 ? 2 : 1;
}
function getMillisecondsInterval(approxInterval) {
  return numberUtil.nice(approxInterval, true);
}
function getFirstTimestampOfUnit(date, unitName, isUTC) {
  var outDate = new Date(date);
  switch (getPrimaryTimeUnit(unitName)) {
    case 'year':
    case 'month':
      outDate[monthSetterName(isUTC)](0);
    case 'day':
      outDate[dateSetterName(isUTC)](1);
    case 'hour':
      outDate[hoursSetterName(isUTC)](0);
    case 'minute':
      outDate[minutesSetterName(isUTC)](0);
    case 'second':
      outDate[secondsSetterName(isUTC)](0);
      outDate[millisecondsSetterName(isUTC)](0);
  }
  return outDate.getTime();
}
function getIntervalTicks(bottomUnitName, approxInterval, isUTC, extent) {
  var safeLimit = 10000;
  var unitNames = timeUnits;
  var iter = 0;
  function addTicksInSpan(interval, minTimestamp, maxTimestamp, getMethodName, setMethodName, isDate, out) {
    var date = new Date(minTimestamp);
    var dateTime = minTimestamp;
    var d = date[getMethodName]();
    // if (isDate) {
    //     d -= 1; // Starts with 0;   PENDING
    // }
    while (dateTime < maxTimestamp && dateTime <= extent[1]) {
      out.push({
        value: dateTime
      });
      d += interval;
      date[setMethodName](d);
      dateTime = date.getTime();
    }
    // This extra tick is for calcuating ticks of next level. Will not been added to the final result
    out.push({
      value: dateTime,
      notAdd: true
    });
  }
  function addLevelTicks(unitName, lastLevelTicks, levelTicks) {
    var newAddedTicks = [];
    var isFirstLevel = !lastLevelTicks.length;
    if (isUnitValueSame(getPrimaryTimeUnit(unitName), extent[0], extent[1], isUTC)) {
      return;
    }
    if (isFirstLevel) {
      lastLevelTicks = [{
        // TODO Optimize. Not include so may ticks.
        value: getFirstTimestampOfUnit(new Date(extent[0]), unitName, isUTC)
      }, {
        value: extent[1]
      }];
    }
    for (var i = 0; i < lastLevelTicks.length - 1; i++) {
      var startTick = lastLevelTicks[i].value;
      var endTick = lastLevelTicks[i + 1].value;
      if (startTick === endTick) {
        continue;
      }
      var interval = void 0;
      var getterName = void 0;
      var setterName = void 0;
      var isDate = false;
      switch (unitName) {
        case 'year':
          interval = Math.max(1, Math.round(approxInterval / ONE_DAY / 365));
          getterName = fullYearGetterName(isUTC);
          setterName = fullYearSetterName(isUTC);
          break;
        case 'half-year':
        case 'quarter':
        case 'month':
          interval = getMonthInterval(approxInterval);
          getterName = monthGetterName(isUTC);
          setterName = monthSetterName(isUTC);
          break;
        case 'week': // PENDING If week is added. Ignore day.
        case 'half-week':
        case 'day':
          interval = getDateInterval(approxInterval, 31); // Use 32 days and let interval been 16
          getterName = dateGetterName(isUTC);
          setterName = dateSetterName(isUTC);
          isDate = true;
          break;
        case 'half-day':
        case 'quarter-day':
        case 'hour':
          interval = getHourInterval(approxInterval);
          getterName = hoursGetterName(isUTC);
          setterName = hoursSetterName(isUTC);
          break;
        case 'minute':
          interval = getMinutesAndSecondsInterval(approxInterval, true);
          getterName = minutesGetterName(isUTC);
          setterName = minutesSetterName(isUTC);
          break;
        case 'second':
          interval = getMinutesAndSecondsInterval(approxInterval, false);
          getterName = secondsGetterName(isUTC);
          setterName = secondsSetterName(isUTC);
          break;
        case 'millisecond':
          interval = getMillisecondsInterval(approxInterval);
          getterName = millisecondsGetterName(isUTC);
          setterName = millisecondsSetterName(isUTC);
          break;
      }
      addTicksInSpan(interval, startTick, endTick, getterName, setterName, isDate, newAddedTicks);
      if (unitName === 'year' && levelTicks.length > 1 && i === 0) {
        // Add nearest years to the left extent.
        levelTicks.unshift({
          value: levelTicks[0].value - interval
        });
      }
    }
    for (var i = 0; i < newAddedTicks.length; i++) {
      levelTicks.push(newAddedTicks[i]);
    }
    // newAddedTicks.length && console.log(unitName, newAddedTicks);
    return newAddedTicks;
  }
  var levelsTicks = [];
  var currentLevelTicks = [];
  var tickCount = 0;
  var lastLevelTickCount = 0;
  for (var i = 0; i < unitNames.length && iter++ < safeLimit; ++i) {
    var primaryTimeUnit = getPrimaryTimeUnit(unitNames[i]);
    if (!isPrimaryTimeUnit(unitNames[i])) {
      // TODO
      continue;
    }
    addLevelTicks(unitNames[i], levelsTicks[levelsTicks.length - 1] || [], currentLevelTicks);
    var nextPrimaryTimeUnit = unitNames[i + 1] ? getPrimaryTimeUnit(unitNames[i + 1]) : null;
    if (primaryTimeUnit !== nextPrimaryTimeUnit) {
      if (currentLevelTicks.length) {
        lastLevelTickCount = tickCount;
        // Remove the duplicate so the tick count can be precisely.
        currentLevelTicks.sort(function (a, b) {
          return a.value - b.value;
        });
        var levelTicksRemoveDuplicated = [];
        for (var i_1 = 0; i_1 < currentLevelTicks.length; ++i_1) {
          var tickValue = currentLevelTicks[i_1].value;
          if (i_1 === 0 || currentLevelTicks[i_1 - 1].value !== tickValue) {
            levelTicksRemoveDuplicated.push(currentLevelTicks[i_1]);
            if (tickValue >= extent[0] && tickValue <= extent[1]) {
              tickCount++;
            }
          }
        }
        var targetTickNum = (extent[1] - extent[0]) / approxInterval;
        // Added too much in this level and not too less in last level
        if (tickCount > targetTickNum * 1.5 && lastLevelTickCount > targetTickNum / 1.5) {
          break;
        }
        // Only treat primary time unit as one level.
        levelsTicks.push(levelTicksRemoveDuplicated);
        if (tickCount > targetTickNum || bottomUnitName === unitNames[i]) {
          break;
        }
      }
      // Reset if next unitName is primary
      currentLevelTicks = [];
    }
  }
  if (process.env.NODE_ENV !== 'production') {
    if (iter >= safeLimit) {
      warn('Exceed safe limit.');
    }
  }
  var levelsTicksInExtent = filter(map(levelsTicks, function (levelTicks) {
    return filter(levelTicks, function (tick) {
      return tick.value >= extent[0] && tick.value <= extent[1] && !tick.notAdd;
    });
  }), function (levelTicks) {
    return levelTicks.length > 0;
  });
  var ticks = [];
  var maxLevel = levelsTicksInExtent.length - 1;
  for (var i = 0; i < levelsTicksInExtent.length; ++i) {
    var levelTicks = levelsTicksInExtent[i];
    for (var k = 0; k < levelTicks.length; ++k) {
      ticks.push({
        value: levelTicks[k].value,
        level: maxLevel - i
      });
    }
  }
  ticks.sort(function (a, b) {
    return a.value - b.value;
  });
  // Remove duplicates
  var result = [];
  for (var i = 0; i < ticks.length; ++i) {
    if (i === 0 || ticks[i].value !== ticks[i - 1].value) {
      result.push(ticks[i]);
    }
  }
  return result;
}
Scale.registerClass(TimeScale);
export default TimeScale;