/* jigs.mjs CC BY @taisuke */

const exports = {}

exports.cr = function (tag, cls) {
  var res = document.createElement(tag)
  if (cls != null) {
    res.className = cls
  }
  return res
}
exports.clear = function (id) {
  var div = typeof id === 'string' ? document.getElementById(id) : id
  while (div.hasChildNodes()) {
    div.removeChild(div.lastChild)
  }
  div.scrollTop = 0
  div.scrollLeft = 0
}
exports.removeAllChildren = function (div) {
  while (div.hasChildNodes()) {
    div.removeChild(div.lastChild)
  }
}
exports.rnd = function (n) {
  return Math.floor(Math.random() * n)
}
exports.toHalf = function (s) {
  const ZEN = '０１２３４５６７８９（）／'
  const HAN = '0123456789()/'
  let s2 = ''
  for (let i = 0; i < s.length; i++) {
    const c = s.charAt(i)
    const n = ZEN.indexOf(c)
    if (n >= 0) {
      s2 += HAN.charAt(n)
    } else {
      s2 += c
    }
  }
  return s2
}
exports.shuffle = function (array) {
  for (var i = 0; i < array.length; i++) {
    var n = exports.rnd(array.length)
    var tmp = array[i]
    array[i] = array[n]
    array[n] = tmp
  }
}
exports.addComma = function (num, beam) {
  var flg = num < 0
  if (flg) {
    num = -num
  }
  if (beam == null) {
    beam = 0
  }
  if (isNaN(parseFloat(num))) {
    return num
  }
  var f = parseFloat(num) - parseInt(num)
  var s = '' + parseInt(num)
  for (var i = 3; i < s.length; i += 4) {
    s = s.substring(0, s.length - i) + ',' + s.substring(s.length - i)
  }
  if (beam > 0) {
    s += '.' + exports.fixnum(Math.floor(f * Math.pow(10, beam)), beam)
  }
  return (flg ? '-' : '') + s
}
exports.removeComma = function (s, b) {
  if (s.length === 0) {
    return s
  }
  var s2 = s.replace(/,/g, '')
  var n = parseFloat(s2)
  if (!isNaN(n)) {
    return n
  }
  return s
}
exports.fixnum = function (n, m) {
  var s = '00000000000000000' + n
  return s.substring(s.length - m)
}
exports.fixfloat = function (d, beam) {
  if (beam === 0) {
    return Math.floor(d)
  }
  var minus = ''
  if (d < 0) {
    d = -d
    minus = '-'
  }
  if (beam == null) {
    beam = 2
  }
  var k = Math.pow(10, beam)
  d *= k
  var m = Math.floor(d % k)
  var s = Math.floor(d / k)
  return minus + s + '.' + exports.fixnum(m, beam)
}
exports.dec2hex = function (n, beam) {
  var hex = ''
  for (var i = 0; i < beam; i++) {
    var m = n & 0xf
    hex = '0123456789abcdef'.charAt(m) + hex
    n -= m
    n >>= 4
  }
  return hex
}
exports.hex2bin = function (s) {
  var res = ''
  for (var i = 0; i < s.length; i++) {
    var n = '0123456789abcdef'.indexOf(s.charAt(i))
    if (n < 0) {
      n = 0
    }
    for (var j = 0; j < 4; j++) {
      res += (n & (1 << (3 - j))) !== 0 ? '1' : '0'
    }
  }
  return res
}
exports.createImage = function (s, cr, cg, cb) {
  if (cr == null) {
    cr = cg = cb = 0
  }
  var w = 8
  var r = 1
  var wr = w * r

  var bs = exports.hex2bin(s)
  var canvas = document.createElement('canvas')
  canvas.width = wr
  canvas.height = wr
  var ctx = canvas.getContext('2d')
  var data = ctx.createImageData(wr, wr)
  var imgdata = data.data
  for (var i = 0; i < w * w; i++) {
    var x = i % w
    var y = Math.floor(i / w)
    // var b = Math.random() > .5
    var b = bs.charAt(i) === '1'
    for (var j = 0; j < r; j++) {
      for (var k = 0; k < r; k++) {
        var idx = (x * r + j) * 4 + (y * r + k) * wr * 4;
        imgdata[idx + 0] = b ? cr : 255;
        imgdata[idx + 1] = b ? cg : 255;
        imgdata[idx + 2] = b ? cb : 255;
        imgdata[idx + 3] = b ? 255 : 0;
      }
    }
  }
  ctx.putImageData(data, 0, 0);
  return canvas.toDataURL("image/png");
};
exports.jsonp = function (url, callback) {
  var head = document.getElementsByTagName("head")[0];
  var script = document.createElement("script");
  if (callback) {
    if (url.indexOf("?") >= 0) {
      url += "&";
    } else {
      url += "?";
    }
    url += "callback=" + getCallbackMethod(callback);
  }
  script.setAttribute("src", url);
  script.setAttribute("type", "text/javascript");
//  script.setAttribute("id", 'jsonp');
  head.appendChild(script);
}
exports.getCallbackMethod = function (callback) {
  var scallback = "_cb_" + (Math.random() * 1000000 >> 0);
  window[scallback] = function (data) {
    window[scallback] = null;
    callback(data);
  };
  return scallback;
}
exports.xml2json = function (xml) { // attribute無視、名前重なったら配列化
  var f = function (xml) {
    var json = {};
    var text = [];
    var hasxml = false;
    var bkname = null;
    for (var i = 0; i < xml.childNodes.length; i++) {
      var node = xml.childNodes[i];
      var name = node.nodeName;
      if (name == "#text")
        text.push(node.textContent);
      else {
        hasxml = true;
        if (json[name] == null) {
          json[name] = f(node);
        } else {
          if (!(json[name] instanceof Array)) {
            json[name] = [ json[name] ];
          }
          json[name].push(f(node));
        }
      }
    }
    return hasxml ? json : text.join('');
  };
  return f(xml);
}
exports.debug = function (s) {
  var d = get('debug');
  if (d == null) {
    d = create('div');
    d.id = 'debug';
    document.body.appendChild(d);
  }
//  d.textContent = s;
  d.innerHTML = s;
};
exports.dump = function (o, name, target) { // default: div id=dump
  if (target == null) {
    debug('');
    target = get('debug');
  }
  exports.dumpInner(o, name, 0, target);
}
exports.dumpInner = function (o, name, depth, target) {
  if (name == null)
    name = '';
  for (var n in o) {
    if (typeof o[n] == "object") {
      var div = create("div");
      div.style.paddingLeft = (depth * 30) + "px";
      div.textContent = n;
      target.appendChild(div);
      dumpInner(o[n], n, depth + 1, target);
    } else {
      var s = n + ": " + o[n];
  //    alert(n + " " + o[n]);
      var div = create("div");
      div.style.paddingLeft = (depth * 30) + "px";
      div.textContent = s;
      target.appendChild(div);
    }
  }
}
exports.dumpXML = function (xml, comp) {
  if (comp == null) {
    debug('');
    comp = get('debug');
  }
  var f = function (xml, n) {
    for (var i = 0; i < xml.childNodes.length; i++) {
      var node = xml.childNodes[i];
      var name = node.nodeName;
      var div = create("div");
      var s = [];
      s.push(name == "#text" ? node.textContent : name);
      var att = node.attributes;
      if (att != null && att.length > 0) {
        s.push(" (");
        for (var j = 0; j < att.length; j++) {
          var at = att[j];
          s.push(at.nodeName + "=" + at.childNodes[0].textContent);
          if (j < att.length - 1)
            s.push(" ");
        }
        s.push(")");
      }
      div.textContent = s.join('');
      div.style.paddingLeft = (n * 20) + "px";
      comp.appendChild(div);
      f(node, n + 1);
    }
  };
  f(xml, 0);
}
exports.getLanguage = function () {
  try {
    return (navigator.browserLanguage || navigator.language || navigator.userLanguage).substr(0, 2)
  } catch(e) {
  }
  return "en";
}
// color util hsb2rgb rgb2hsv
exports.rgb2hsv = function (rr, gg, bb) {
  var hsv = [ 0, 0, 0 ];
  var r = rr / 255;
  var g = gg /255;
  var b = bb / 255;
  var max = Math.max(r,g,b);
  var min = Math.min(r,g,b);
  if (max != 0) {
    hsv[1] = (max - min) / max;
    if (max == r)
      hsv[0] = 60 * (g - b) / (max - min);
    else if (max == g)
      hsv[0] = 60 * (b - r) / (max - min) + 120;
    else
      hsv[0] = 60 * (r - g) / (max - min) + 240;
    if (hsv[0] < 0)
      hsv[0] += 360;
  }
  hsv[2] = max;
  return hsv;
}
exports.hsv2rgb = function (h, s, v) {
  while (h < 0)
    h += 360;
  h %= 360;
  if (s == 0) {
    v *= 255;
    return [ v, v, v ];
  }
  var hi = h / 60 >> 0;
  var f = h / 60 - hi;
  var p = v * (1 - s);
  var q = v * (1 - f * s);
  var t = v * (1 - (1 - f) * s);
  var rgb = [ 1, 1, 1 ];
  if (hi == 0)
    rgb = [ v, t, p ];
  else if (hi == 1)
    rgb = [ q, v, p ];
  else if (hi == 2)
    rgb = [ p, v, t ];
  else if (hi == 3)
    rgb = [ p, q, v ];
  else if (hi == 4)
    rgb = [ t, p, v ];
  else if (hi == 5)
    rgb = [ v, p, q ];
  rgb[0] = rgb[0] * 255 >> 0;
  rgb[1] = rgb[1] * 255 >> 0;
  rgb[2] = rgb[2] * 255 >> 0;
  return rgb;
}
exports.rgb2css = function (r, g, b) {
  if (typeof r == 'object') {
    g = r[1];
    b = r[2];
    r = r[0];
  }
  return "#" + dec2hex(r, 2) + dec2hex(g, 2) + dec2hex(b, 2);
}

// ui (mouse & touch)
exports.setUI = function (comp) { // onuidown, onuimove, onuiup
  var istouch = 'ontouchstart' in window;
  var usecapture = false;
  if (istouch) {
    comp.addEventListener("touchstart", function (e) {
      if (this.onuidown != null)
        if (!this.onuidown(
          (e.changedTouches[0].pageX - this.offsetLeft) * this.ratio,
          (e.changedTouches[0].pageY - this.offsetTop) * this.ratio
        ))
          e.preventDefault();
    }, usecapture);
    comp.addEventListener("touchmove", function (e) {
      if (this.onuimove != null)
        if (!this.onuimove(
          (e.changedTouches[0].pageX - this.offsetLeft) * this.ratio,
          (e.changedTouches[0].pageY - this.offsetTop) * this.ratio
        ))
          e.preventDefault();
    }, usecapture);
    comp.addEventListener("touchend", function (e) {
      if (this.onuiup != null)
        if (!this.onuiup(
          (e.changedTouches[0].pageX - this.offsetLeft) * this.ratio,
          (e.changedTouches[0].pageY - this.offsetTop) * this.ratio
        ))
          e.preventDefault();
    }, usecapture);
  }
  comp.addEventListener("mousedown", function (e) {
    if (this.onuidown != null)
      this.onuidown(e.offsetX * this.ratio, e.offsetY * this.ratio);
  }, usecapture);
  comp.addEventListener("mousemove", function (e) {
    if (this.onuimove != null)
      this.onuimove(e.offsetX * this.ratio, e.offsetY * this.ratio);
  }, usecapture);
  comp.addEventListener("mouseup", function (e) {
    if (this.onuiup != null)
      this.onuiup(e.offsetX * this.ratio, e.offsetY * this.ratio);
  }, usecapture);
};
// canvas
exports.getContext = function (canvas) {
  var g = canvas.getContext("2d");
  g.canvas1 = canvas;
  g.ratio = 1;
  g.init = function () {
    var ua = navigator.userAgent;
    if (ua.indexOf("iPhone") >= 0 || ua.indexOf("iPad") >= 0 || ua.indexOf("iPod") >= 0)
      this.ratio = window.devicePixelRatio;
    this.cw = this.canvas1.clientWidth * this.ratio;
    this.ch = this.canvas1.clientHeight * this.ratio;
    this.canvas1.width = this.cw;
    this.canvas1.height = this.ch;
    this.canvas1.ratio = this.ratio;
    if (this.draw != null)
      this.draw();
  };
  g.setColor = function (r, g, b, a) {
    if (a == null)
      a = 1;
    var c = "rgba(" + r + "," + g + "," + b + "," + a + ")";
    this.fillStyle = c;
    this.strokeStyle = c;
  };
  g.drawLine = function (x1, y1, x2, y2) {
    this.beginPath();
    this.moveTo(x1, y1);
    this.lineTo(x2, y2);
    this.closePath();
    this.stroke();
  };
  g.drawCircle = function (x, y, r) {
    this.beginPath();
    this.arc(x, y, r, 0, Math.PI * 2, false);
    this.closePath();
    this.stroke();
  };
  g.fillCircle = function (x, y, r) {
    this.beginPath();
    this.arc(x, y, r, 0, Math.PI * 2, false);
    this.closePath();
    this.fill();
  };
  // draw arrow
  g.drawArrow = function (x1, y1, x2, y2, arw, arh, fill) {
    var g = this;
    var dx = x2 - x1;
    var dy = y2 - y1;
    var len = Math.sqrt(dy * dy + dx * dx);
    var th = Math.atan2(dy, dx);
    var th2 = th - Math.PI / 2;
    if (len < arh * 1.5) {
      arh = len / 1.5;
      if (arh / 2 < arw)
        arw = arh / 2;
    }
    var dx1 = Math.cos(th2) * arw;
    var dy1 = Math.sin(th2) * arw;
    var dx2 = Math.cos(th) * (len - arh);
    var dy2 = Math.sin(th) * (len - arh);
    var dx3 = Math.cos(th2) * (arh - arw);
    var dy3 = Math.sin(th2) * (arh - arw);
    g.beginPath();
    g.moveTo(x1, y1);
    g.lineTo(x1 + dx1, y1 + dy1);
    g.lineTo(x1 + dx1 + dx2, y1 + dy1 + dy2);
    g.lineTo(x1 + dx1 + dx2 + dx3, y1 + dy1 + dy2 + dy3);
    g.lineTo(x2, y2);
    g.lineTo(x1 - dx1 + dx2 - dx3, y1 - dy1 + dy2 - dy3);
    g.lineTo(x1 - dx1 + dx2, y1 - dy1 + dy2);
    g.lineTo(x1 - dx1, y1 - dy1);
    g.closePath();
    if (fill)
      g.fill();
    else
      g.stroke();
  };
  g.fillArrow = function (x1, y1, x2, y2, arw, arh) {
    this.drawArrow(x1, y1, x2, y2, arw, arh, true);
  };
  return g;
}

// net util

exports.parseInt2 = function (n) {
  n = parseInt(n)
  if (isNaN(n)) {
    return '-'
  }
  return n
}
exports.decodeCSV = function (s) {
  const res = []
  let st = 0
  let line = []
  let sb = null
  if (!s.endsWith('\n')) {
    s += '\n'
  }
  const len = s.length
  for (let i = 0; i < len; i++) {
    let c = s.charAt(i)
    if (c == '\r')
      continue
    if (st == 0) {
      if (c == '\n') {
        if (line.length > 0)
          line.push('')
        res.push(line)
        line = []
      } else if (c == ',') {
        line.push('')
      } else if (c == '"') {
        sb = ''
        st = 2
      } else {
        sb = c
        st = 1
      }
    } else if (st == 1) {
      if (c == '\n') {
        line.push(sb)
        res.push(line)
        line = []
        st = 0
        sb = null
      } else if (c == ',') {
        line.push(sb)
        sb = null
        st = 0
      } else {
        sb += c
      }
    } else if (st == 2) {
      if (c == '"') {
        st = 3
      } else {
        sb += c
      }
    } else if (st == 3) {
      if (c == '"') {
        sb += c
        st = 2
      } else if (c == ',') {
        line.push(sb)
        sb = null
        st = 0
      } else if (c == '\n') {
        line.push(sb)
        res.push(line)
        line = []
        st = 0
        sb = null
      }
    }
  }
  if (sb != null) {
    line.push(sb)
  }
  if (line.length > 0) {
    res.push(line)
  }
  return res
}
exports.csv2json = function (csv) {
  const res = []
  const head = csv[0]
  for (let i = 0; i < head.length; i++) {
    const h = head[i]
    const n = h.indexOf('(')
    const m = h.indexOf('（')
    let l = -1
    if (n == -1) {
      l = m
    } else if (m == -1) {
      l = n
    } else {
      l = Math.min(n, m)
    }
    head[i] = (l > 0 ? h.substring(0, l) : h).trim()
  }
  for (let i = 1; i < csv.length; i++) {
    const d = {}
    for (let j = 0; j < head.length; j++) {
      d[head[j]] = csv[i][j]
    }
    res.push(d)
  }
  return res
}
exports.getLastDayOfMonth = function (year, month) {
  if (month == 0) {
    month = 12
    year--
  } else if (month == 13) {
    month = 1
    year++
  } else if (month == 2) {
    if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0) {
      return 29
    }
    return 28
  }
  return 30 + (month + Math.floor(month / 8)) % 2
}
exports.fetchCSVtoJSON = async url => exports.csv2json(exports.decodeCSV(await (await fetch(url)).text()))

exports.fix0 = function (n, beam) {
  const s = '000000000' + n
  return s.substring(s.length - beam)
}
exports.formatYMDHMS = function (t) {
  if (!t) {
    t = new Date()
  }
  const fix0 = exports.fix0
  return t.getFullYear() + "-" + fix0(t.getMonth() + 1, 2) + "-" + fix0(t.getDate(), 2) + "T" + fix0(t.getHours(), 2) + ":" + fix0(t.getMinutes(), 2) + ":" + fix0(t.getSeconds(), 2)
}
exports.formatYMD = function (t) {
  if (!t) {
    t = new Date()
  }
  const fix0 = exports.fix0
  return t.getFullYear() + "-" + fix0(t.getMonth() + 1, 2) + "-" + fix0(t.getDate(), 2)
}
exports.addBOM = function (s) {
  return '\ufeff' + s
}
exports.removeBOM = function (s) {
  if (s.charAt(0) === '\ufeff') {
    return s.substring(1)
  }
  return s
}
exports.unique = ar => ar.filter((cur, idx, self) => self.indexOf(cur) == idx)

exports.makeGrids = function (stab) {
  const area = []
  let maxc = 0
  const lines = stab.split('\n')
  for (const a of lines) {
    const row = a.split(' ')
    if (row.length > 1 || row[0].length > 0) {
      area.push(row)
      if (row.length > maxc) {
        maxc = row.length
      }
    }
  }
  const c = document.createElement('div')
  c.style.display = 'grid'
  c.style.gridTemplateColumns = `repeat(${maxc}, 1fr)`
  c.style.gridTemplateRows = `repeat(${lines.length}, 1fr)`
  for (const ar of area) {
    for (const a of ar) {
      const div = document.createElement('span')
      c.appendChild(div)
      div.textContent = a
    }
  }
  c.area = area.flat()
  return c
}
/* for surrogate pairs */
exports.decU = function (s) {
  if (s == null) {
    return null
  }
  return s.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]|[\s\S]/g) || []
}
exports.encU = function (uni) {
  return uni.join('')
}
/* string util */
exports.splitString = function (s, splitters) {
  const res = []
  let n = 0
  for (let i = 0; i < s.length; i++) {
    const c = s.charAt(i)
    if (splitters.indexOf(c) >= 0) {
      if (i > n) {
        res.push(s.substring(n, i))
      }
      n = i + 1
    }
  }
  if (n < s.length) {
    res.push(s.substring(n))
  }
  return res
}

export default exports