'use strict';

const WeakMap = (m => m.__esModule ? /* istanbul ignore next */ m.default : /* istanbul ignore next */ m)(require('@ungap/weakmap'));

const {OWNER_SVG_ELEMENT} = require('../shared/constants.js');

const {Tagger} = require('../objects/Updates.js');

const {reArguments} = require('../shared/utils.js');

// a weak collection of contexts that

// are already known to hyperHTML

const bewitched = new WeakMap;

// better known as hyper.bind(node), the render is

// the main tag function in charge of fully upgrading

// or simply updating, contexts used as hyperHTML targets.

// The `this` context is either a regular DOM node or a fragment.

function render() {

const wicked = bewitched.get(this);

const args = reArguments.apply(null, arguments);

if (wicked && wicked.template === args[0]) {

wicked.tagger.apply(null, args);

} else {

upgrade.apply(this, args);

}

return this;

}

// an upgrade is in charge of collecting template info,

// parse it once, if unknown, to map all interpolations

// as single DOM callbacks, relate such template

// to the current context, and render it after cleaning the context up

function upgrade() {

const args = reArguments.apply(null, arguments);

const type = OWNER_SVG_ELEMENT in this ? 'svg' : 'html';

const tagger = new Tagger(type);

bewitched.set(this, {tagger, template: args[0]});

this.textContent = '';

this.appendChild(tagger.apply(null, args));

}

Object.defineProperty(exports, '__esModule', {value: true}).default = render;