/*!
 * (C) Ionic http://ionicframework.com - MIT License
 */
import { proxyCustomElement, HTMLElement, h, Host } from '@stencil/core/internal/client';
import { c as config, g as getIonMode } from './ionic-global.js';
import { c as createColorClasses } from './theme.js';

const spinners = {
  'bubbles': {
    dur: 1000,
    circles: 9,
    fn: (dur, index, total) => {
      const animationDelay = `${(dur * index / total) - dur}ms`;
      const angle = 2 * Math.PI * index / total;
      return {
        r: 5,
        style: {
          'top': `${9 * Math.sin(angle)}px`,
          'left': `${9 * Math.cos(angle)}px`,
          'animation-delay': animationDelay,
        }
      };
    }
  },
  'circles': {
    dur: 1000,
    circles: 8,
    fn: (dur, index, total) => {
      const step = index / total;
      const animationDelay = `${(dur * step) - dur}ms`;
      const angle = 2 * Math.PI * step;
      return {
        r: 5,
        style: {
          'top': `${9 * Math.sin(angle)}px`,
          'left': `${9 * Math.cos(angle)}px`,
          'animation-delay': animationDelay,
        }
      };
    }
  },
  'circular': {
    dur: 1400,
    elmDuration: true,
    circles: 1,
    fn: () => {
      return {
        r: 20,
        cx: 48,
        cy: 48,
        fill: 'none',
        viewBox: '24 24 48 48',
        transform: 'translate(0,0)',
        style: {}
      };
    }
  },
  'crescent': {
    dur: 750,
    circles: 1,
    fn: () => {
      return {
        r: 26,
        style: {}
      };
    }
  },
  'dots': {
    dur: 750,
    circles: 3,
    fn: (_, index) => {
      const animationDelay = -(110 * index) + 'ms';
      return {
        r: 6,
        style: {
          'left': `${9 - (9 * index)}px`,
          'animation-delay': animationDelay,
        }
      };
    }
  },
  'lines': {
    dur: 1000,
    lines: 12,
    fn: (dur, index, total) => {
      const transform = `rotate(${30 * index + (index < 6 ? 180 : -180)}deg)`;
      const animationDelay = `${(dur * index / total) - dur}ms`;
      return {
        y1: 17,
        y2: 29,
        style: {
          'transform': transform,
          'animation-delay': animationDelay,
        }
      };
    }
  },
  'lines-small': {
    dur: 1000,
    lines: 12,
    fn: (dur, index, total) => {
      const transform = `rotate(${30 * index + (index < 6 ? 180 : -180)}deg)`;
      const animationDelay = `${(dur * index / total) - dur}ms`;
      return {
        y1: 12,
        y2: 20,
        style: {
          'transform': transform,
          'animation-delay': animationDelay,
        }
      };
    }
  }
};
const SPINNERS = spinners;

const spinnerCss = ":host{display:inline-block;position:relative;width:28px;height:28px;color:var(--color);-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}:host(.ion-color){color:var(--ion-color-base)}svg{left:0;top:0;-webkit-transform-origin:center;transform-origin:center;position:absolute;width:100%;height:100%;-webkit-transform:translateZ(0);transform:translateZ(0)}[dir=rtl] svg,:host-context([dir=rtl]) svg{left:unset;right:unset;right:0}[dir=rtl] svg,:host-context([dir=rtl]) svg{-webkit-transform-origin:calc(100% - center);transform-origin:calc(100% - center)}:host(.spinner-lines) line,:host(.spinner-lines-small) line{stroke-width:4px;stroke-linecap:round;stroke:currentColor}:host(.spinner-lines) svg,:host(.spinner-lines-small) svg{-webkit-animation:spinner-fade-out 1s linear infinite;animation:spinner-fade-out 1s linear infinite}:host(.spinner-bubbles) svg{-webkit-animation:spinner-scale-out 1s linear infinite;animation:spinner-scale-out 1s linear infinite;fill:currentColor}:host(.spinner-circles) svg{-webkit-animation:spinner-fade-out 1s linear infinite;animation:spinner-fade-out 1s linear infinite;fill:currentColor}:host(.spinner-crescent) circle{fill:transparent;stroke-width:4px;stroke-dasharray:128px;stroke-dashoffset:82px;stroke:currentColor}:host(.spinner-crescent) svg{-webkit-animation:spinner-rotate 1s linear infinite;animation:spinner-rotate 1s linear infinite}:host(.spinner-dots) circle{stroke-width:0;fill:currentColor}:host(.spinner-dots) svg{-webkit-animation:spinner-dots 1s linear infinite;animation:spinner-dots 1s linear infinite}:host(.spinner-circular){-webkit-animation:spinner-circular linear infinite;animation:spinner-circular linear infinite}:host(.spinner-circular) circle{-webkit-animation:spinner-circular-inner ease-in-out infinite;animation:spinner-circular-inner ease-in-out infinite;stroke:currentColor;stroke-dasharray:80px, 200px;stroke-dashoffset:0px;stroke-width:5.6;fill:none}:host(.spinner-paused),:host(.spinner-paused) svg,:host(.spinner-paused) circle{-webkit-animation-play-state:paused;animation-play-state:paused}@-webkit-keyframes spinner-fade-out{0%{opacity:1}100%{opacity:0}}@keyframes spinner-fade-out{0%{opacity:1}100%{opacity:0}}@-webkit-keyframes spinner-scale-out{0%{-webkit-transform:scale(1, 1);transform:scale(1, 1)}100%{-webkit-transform:scale(0, 0);transform:scale(0, 0)}}@keyframes spinner-scale-out{0%{-webkit-transform:scale(1, 1);transform:scale(1, 1)}100%{-webkit-transform:scale(0, 0);transform:scale(0, 0)}}@-webkit-keyframes spinner-rotate{0%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}100%{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}@keyframes spinner-rotate{0%{-webkit-transform:rotate(0deg);transform:rotate(0deg)}100%{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}@-webkit-keyframes spinner-dots{0%{-webkit-transform:scale(1, 1);transform:scale(1, 1);opacity:0.9}50%{-webkit-transform:scale(0.4, 0.4);transform:scale(0.4, 0.4);opacity:0.3}100%{-webkit-transform:scale(1, 1);transform:scale(1, 1);opacity:0.9}}@keyframes spinner-dots{0%{-webkit-transform:scale(1, 1);transform:scale(1, 1);opacity:0.9}50%{-webkit-transform:scale(0.4, 0.4);transform:scale(0.4, 0.4);opacity:0.3}100%{-webkit-transform:scale(1, 1);transform:scale(1, 1);opacity:0.9}}@-webkit-keyframes spinner-circular{100%{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}@keyframes spinner-circular{100%{-webkit-transform:rotate(360deg);transform:rotate(360deg)}}@-webkit-keyframes spinner-circular-inner{0%{stroke-dasharray:1px, 200px;stroke-dashoffset:0px}50%{stroke-dasharray:100px, 200px;stroke-dashoffset:-15px}100%{stroke-dasharray:100px, 200px;stroke-dashoffset:-125px}}@keyframes spinner-circular-inner{0%{stroke-dasharray:1px, 200px;stroke-dashoffset:0px}50%{stroke-dasharray:100px, 200px;stroke-dashoffset:-15px}100%{stroke-dasharray:100px, 200px;stroke-dashoffset:-125px}}";

const Spinner = /*@__PURE__*/ proxyCustomElement(class extends HTMLElement {
  constructor() {
    super();
    this.__registerHost();
    this.__attachShadow();
    this.color = undefined;
    this.duration = undefined;
    this.name = undefined;
    this.paused = false;
  }
  getName() {
    const spinnerName = this.name || config.get('spinner');
    const mode = getIonMode(this);
    if (spinnerName) {
      return spinnerName;
    }
    return (mode === 'ios') ? 'lines' : 'circular';
  }
  render() {
    const self = this;
    const mode = getIonMode(self);
    const spinnerName = self.getName();
    const spinner = SPINNERS[spinnerName] || SPINNERS['lines'];
    const duration = (typeof self.duration === 'number' && self.duration > 10 ? self.duration : spinner.dur);
    const svgs = [];
    if (spinner.circles !== undefined) {
      for (let i = 0; i < spinner.circles; i++) {
        svgs.push(buildCircle(spinner, duration, i, spinner.circles));
      }
    }
    else if (spinner.lines !== undefined) {
      for (let i = 0; i < spinner.lines; i++) {
        svgs.push(buildLine(spinner, duration, i, spinner.lines));
      }
    }
    return (h(Host, { class: createColorClasses(self.color, {
        [mode]: true,
        [`spinner-${spinnerName}`]: true,
        'spinner-paused': !!self.paused || config.getBoolean('_testing')
      }), role: "progressbar", style: spinner.elmDuration ? { animationDuration: duration + 'ms' } : {} }, svgs));
  }
  static get style() { return spinnerCss; }
}, [1, "ion-spinner", {
    "color": [513],
    "duration": [2],
    "name": [1],
    "paused": [4]
  }]);
const buildCircle = (spinner, duration, index, total) => {
  const data = spinner.fn(duration, index, total);
  data.style['animation-duration'] = duration + 'ms';
  return (h("svg", { viewBox: data.viewBox || '0 0 64 64', style: data.style }, h("circle", { transform: data.transform || 'translate(32,32)', cx: data.cx, cy: data.cy, r: data.r, style: spinner.elmDuration ? { animationDuration: duration + 'ms' } : {} })));
};
const buildLine = (spinner, duration, index, total) => {
  const data = spinner.fn(duration, index, total);
  data.style['animation-duration'] = duration + 'ms';
  return (h("svg", { viewBox: data.viewBox || '0 0 64 64', style: data.style }, h("line", { transform: "translate(32,32)", y1: data.y1, y2: data.y2 })));
};
function defineCustomElement() {
  if (typeof customElements === "undefined") {
    return;
  }
  const components = ["ion-spinner"];
  components.forEach(tagName => { switch (tagName) {
    case "ion-spinner":
      if (!customElements.get(tagName)) {
        customElements.define(tagName, Spinner);
      }
      break;
  } });
}

export { SPINNERS as S, Spinner as a, defineCustomElement as d };
