import {Injectable} from '@angular/core';
import {isPresent} from '../facade/lang';
import {StringMapWrapper} from '../facade/collection';
import {ElementSchemaRegistry} from './element_schema_registry';

const EVENT = 'event';
const BOOLEAN = 'boolean';
const NUMBER = 'number';
const STRING = 'string';
const OBJECT = 'object';

/**
 * This array represents the DOM schema. It encodes inheritance, properties, and events.
 *
 * ## Overview
 *
 * Each line represents one kind of element. The `element_inheritance` and properties are joined
 * using `element_inheritance|preperties` syntax.
 *
 * ## Element Inheritance
 *
 * The `element_inheritance` can be further subdivided as `element1,element2,...^parentElement`.
 * Here the individual elements are separated by `,` (commas). Every element in the list
 * has identical properties.
 *
 * An `element` may inherit additional properties from `parentElement` If no `^parentElement` is
 * specified then `""` (blank) element is assumed.
 *
 * NOTE: The blank element inherits from root `*` element, the super element of all elements.
 *
 * NOTE an element prefix such as `@svg:` has no special meaning to the schema.
 *
 * ## Properties
 *
 * Each element has a set of properties separated by `,` (commas). Each property can be prefixed
 * by a special character designating its type:
 *
 * - (no prefix): property is a string.
 * - `*`: property represents an event.
 * - `!`: property is a boolean.
 * - `#`: property is a number.
 * - `%`: property is an object.
 *
 * ## Query
 *
 * The class creates an internal squas representaino which allows to easily answer the query of
 * if a given property exist on a given element.
 *
 * NOTE: We don't yet support querying for types or events.
 * NOTE: This schema is auto extracted from `schema_extractor.ts` located in the test folder.
 */
const SCHEMA: string[] =
  /*@ts2dart_const*/ ([
    '*|%classList,className,id,innerHTML,*beforecopy,*beforecut,*beforepaste,*copy,*cut,*paste,*search,*selectstart,*webkitfullscreenchange,*webkitfullscreenerror,*wheel,outerHTML,#scrollLeft,#scrollTop',
    '^*|accessKey,contentEditable,dir,!draggable,!hidden,innerText,lang,*abort,*autocomplete,*autocompleteerror,*beforecopy,*beforecut,*beforepaste,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*copy,*cuechange,*cut,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*message,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*mozfullscreenchange,*mozfullscreenerror,*mozpointerlockchange,*mozpointerlockerror,*paste,*pause,*play,*playing,*progress,*ratechange,*reset,*resize,*scroll,*search,*seeked,*seeking,*select,*selectstart,*show,*stalled,*submit,*suspend,*timeupdate,*toggle,*volumechange,*waiting,*webglcontextcreationerror,*webglcontextlost,*webglcontextrestored,*webkitfullscreenchange,*webkitfullscreenerror,*wheel,outerText,!spellcheck,%style,#tabIndex,title,!translate',
    'media|!autoplay,!controls,%crossOrigin,#currentTime,!defaultMuted,#defaultPlaybackRate,!disableRemotePlayback,!loop,!muted,*encrypted,#playbackRate,preload,src,#volume',
    '@svg:^*|*abort,*autocomplete,*autocompleteerror,*blur,*cancel,*canplay,*canplaythrough,*change,*click,*close,*contextmenu,*cuechange,*dblclick,*drag,*dragend,*dragenter,*dragleave,*dragover,*dragstart,*drop,*durationchange,*emptied,*ended,*error,*focus,*input,*invalid,*keydown,*keypress,*keyup,*load,*loadeddata,*loadedmetadata,*loadstart,*mousedown,*mouseenter,*mouseleave,*mousemove,*mouseout,*mouseover,*mouseup,*mousewheel,*pause,*play,*playing,*progress,*ratechange,*reset,*resize,*scroll,*seeked,*seeking,*select,*show,*stalled,*submit,*suspend,*timeupdate,*toggle,*volumechange,*waiting,%style,#tabIndex',
    '@svg:graphics^@svg:|',
    '@svg:animation^@svg:|*begin,*end,*repeat',
    '@svg:geometry^@svg:|',
    '@svg:componentTransferFunction^@svg:|',
    '@svg:gradient^@svg:|',
    '@svg:textContent^@svg:graphics|',
    '@svg:textPositioning^@svg:textContent|',
    'a|charset,coords,download,hash,host,hostname,href,hreflang,name,password,pathname,ping,port,protocol,rel,rev,search,shape,target,text,type,username',
    'area|alt,coords,hash,host,hostname,href,!noHref,password,pathname,ping,port,protocol,search,shape,target,username',
    'audio^media|',
    'br|clear',
    'base|href,target',
    'body|aLink,background,bgColor,link,*beforeunload,*blur,*error,*focus,*hashchange,*languagechange,*load,*message,*offline,*online,*pagehide,*pageshow,*popstate,*rejectionhandled,*resize,*scroll,*storage,*unhandledrejection,*unload,text,vLink',
    'button|!autofocus,!disabled,formAction,formEnctype,formMethod,!formNoValidate,formTarget,name,type,value',
    'canvas|#height,#width',
    'content|select',
    'dl|!compact',
    'datalist|',
    'details|!open',
    'dialog|!open,returnValue',
    'dir|!compact',
    'div|align',
    'embed|align,height,name,src,type,width',
    'fieldset|!disabled,name',
    'font|color,face,size',
    'form|acceptCharset,action,autocomplete,encoding,enctype,method,name,!noValidate,target',
    'frame|frameBorder,longDesc,marginHeight,marginWidth,name,!noResize,scrolling,src',
    'frameset|cols,*beforeunload,*blur,*error,*focus,*hashchange,*languagechange,*load,*message,*offline,*online,*pagehide,*pageshow,*popstate,*rejectionhandled,*resize,*scroll,*storage,*unhandledrejection,*unload,rows',
    'hr|align,color,!noShade,size,width',
    'head|',
    'h1,h2,h3,h4,h5,h6|align',
    'html|version',
    'iframe|align,!allowFullscreen,frameBorder,height,longDesc,marginHeight,marginWidth,name,%sandbox,scrolling,src,srcdoc,width',
    'img|align,alt,border,%crossOrigin,#height,#hspace,!isMap,longDesc,lowsrc,name,sizes,src,srcset,useMap,#vspace,#width',
    'input|accept,align,alt,autocapitalize,autocomplete,!autofocus,!checked,!defaultChecked,defaultValue,dirName,!disabled,%files,formAction,formEnctype,formMethod,!formNoValidate,formTarget,#height,!incremental,!indeterminate,max,#maxLength,min,#minLength,!multiple,name,pattern,placeholder,!readOnly,!required,selectionDirection,#selectionEnd,#selectionStart,#size,src,step,type,useMap,value,%valueAsDate,#valueAsNumber,#width',
    'keygen|!autofocus,challenge,!disabled,keytype,name',
    'li|type,#value',
    'label|htmlFor',
    'legend|align',
    'link|as,charset,%crossOrigin,!disabled,href,hreflang,integrity,media,rel,%relList,rev,%sizes,target,type',
    'map|name',
    'marquee|behavior,bgColor,direction,height,#hspace,#loop,#scrollAmount,#scrollDelay,!trueSpeed,#vspace,width',
    'menu|!compact',
    'meta|content,httpEquiv,name,scheme',
    'meter|#high,#low,#max,#min,#optimum,#value',
    'ins,del|cite,dateTime',
    'ol|!compact,!reversed,#start,type',
    'object|align,archive,border,code,codeBase,codeType,data,!declare,height,#hspace,name,standby,type,useMap,#vspace,width',
    'optgroup|!disabled,label',
    'option|!defaultSelected,!disabled,label,!selected,text,value',
    'output|defaultValue,%htmlFor,name,value',
    'p|align',
    'param|name,type,value,valueType',
    'picture|',
    'pre|#width',
    'progress|#max,#value',
    'q,blockquote,cite|',
    'script|!async,charset,%crossOrigin,!defer,event,htmlFor,integrity,src,text,type',
    'select|!autofocus,!disabled,#length,!multiple,name,!required,#selectedIndex,#size,value',
    'shadow|',
    'source|media,sizes,src,srcset,type',
    'span|',
    'style|!disabled,media,type',
    'caption|align',
    'th,td|abbr,align,axis,bgColor,ch,chOff,#colSpan,headers,height,!noWrap,#rowSpan,scope,vAlign,width',
    'col,colgroup|align,ch,chOff,#span,vAlign,width',
    'table|align,bgColor,border,%caption,cellPadding,cellSpacing,frame,rules,summary,%tFoot,%tHead,width',
    'tr|align,bgColor,ch,chOff,vAlign',
    'tfoot,thead,tbody|align,ch,chOff,vAlign',
    'template|',
    'textarea|autocapitalize,!autofocus,#cols,defaultValue,dirName,!disabled,#maxLength,#minLength,name,placeholder,!readOnly,!required,#rows,selectionDirection,#selectionEnd,#selectionStart,value,wrap',
    'title|text',
    'track|!default,kind,label,src,srclang',
    'ul|!compact,type',
    'unknown|',
    'video^media|#height,poster,#width',
    '@svg:a^@svg:graphics|',
    '@svg:animate^@svg:animation|',
    '@svg:animateMotion^@svg:animation|',
    '@svg:animateTransform^@svg:animation|',
    '@svg:circle^@svg:geometry|',
    '@svg:clipPath^@svg:graphics|',
    '@svg:cursor^@svg:|',
    '@svg:defs^@svg:graphics|',
    '@svg:desc^@svg:|',
    '@svg:discard^@svg:|',
    '@svg:ellipse^@svg:geometry|',
    '@svg:feBlend^@svg:|',
    '@svg:feColorMatrix^@svg:|',
    '@svg:feComponentTransfer^@svg:|',
    '@svg:feComposite^@svg:|',
    '@svg:feConvolveMatrix^@svg:|',
    '@svg:feDiffuseLighting^@svg:|',
    '@svg:feDisplacementMap^@svg:|',
    '@svg:feDistantLight^@svg:|',
    '@svg:feDropShadow^@svg:|',
    '@svg:feFlood^@svg:|',
    '@svg:feFuncA^@svg:componentTransferFunction|',
    '@svg:feFuncB^@svg:componentTransferFunction|',
    '@svg:feFuncG^@svg:componentTransferFunction|',
    '@svg:feFuncR^@svg:componentTransferFunction|',
    '@svg:feGaussianBlur^@svg:|',
    '@svg:feImage^@svg:|',
    '@svg:feMerge^@svg:|',
    '@svg:feMergeNode^@svg:|',
    '@svg:feMorphology^@svg:|',
    '@svg:feOffset^@svg:|',
    '@svg:fePointLight^@svg:|',
    '@svg:feSpecularLighting^@svg:|',
    '@svg:feSpotLight^@svg:|',
    '@svg:feTile^@svg:|',
    '@svg:feTurbulence^@svg:|',
    '@svg:filter^@svg:|',
    '@svg:foreignObject^@svg:graphics|',
    '@svg:g^@svg:graphics|',
    '@svg:image^@svg:graphics|',
    '@svg:line^@svg:geometry|',
    '@svg:linearGradient^@svg:gradient|',
    '@svg:mpath^@svg:|',
    '@svg:marker^@svg:|',
    '@svg:mask^@svg:|',
    '@svg:metadata^@svg:|',
    '@svg:path^@svg:geometry|',
    '@svg:pattern^@svg:|',
    '@svg:polygon^@svg:geometry|',
    '@svg:polyline^@svg:geometry|',
    '@svg:radialGradient^@svg:gradient|',
    '@svg:rect^@svg:geometry|',
    '@svg:svg^@svg:graphics|#currentScale,#zoomAndPan',
    '@svg:script^@svg:|type',
    '@svg:set^@svg:animation|',
    '@svg:stop^@svg:|',
    '@svg:style^@svg:|!disabled,media,title,type',
    '@svg:switch^@svg:graphics|',
    '@svg:symbol^@svg:|',
    '@svg:tspan^@svg:textPositioning|',
    '@svg:text^@svg:textPositioning|',
    '@svg:textPath^@svg:textContent|',
    '@svg:title^@svg:|',
    '@svg:use^@svg:graphics|',
    '@svg:view^@svg:|#zoomAndPan'
  ]);

var attrToPropMap: {[name: string]: string} = <any>{
  'class': 'className',
  'innerHtml': 'innerHTML',
  'readonly': 'readOnly',
  'tabindex': 'tabIndex'
};


@Injectable()
export class DomElementSchemaRegistry implements ElementSchemaRegistry {
  schema = <{[element: string]: {[property: string]: string}}>{};

  constructor() {
    SCHEMA.forEach(encodedType => {
      var parts = encodedType.split('|');
      var properties = parts[1].split(',');
      var typeParts = (parts[0] + '^').split('^');
      var typeName = typeParts[0];
      var type = <{[property: string]: string}>{};
      typeName.split(',').forEach(tag => this.schema[tag] = type);
      var superType = this.schema[typeParts[1]];
      if (isPresent(superType)) {
        StringMapWrapper.forEach(superType, (v, k) => type[k] = v);
      }
      properties.forEach((property: string) => {
        if (property == '') {
        } else if (property.startsWith('*')) {
          // We don't yet support events.
          // type[property.substring(1)] = EVENT;
        } else if (property.startsWith('!')) {
          type[property.substring(1)] = BOOLEAN;
        } else if (property.startsWith('#')) {
          type[property.substring(1)] = NUMBER;
        } else if (property.startsWith('%')) {
          type[property.substring(1)] = OBJECT;
        } else {
          type[property] = STRING;
        }
      });
    });
  }

  hasProperty(tagName: string, propName: string): boolean {
    if (tagName.indexOf('-') !== -1) {
      // can't tell now as we don't know which properties a custom element will get
      // once it is instantiated
      return true;
    } else {
      var elementProperties = this.schema[tagName.toLowerCase()];
      if (!isPresent(elementProperties)) {
        elementProperties = this.schema['unknown'];
      }
      return isPresent(elementProperties[propName]);
    }
  }

  getMappedPropName(propName: string): string {
    var mappedPropName = StringMapWrapper.get(attrToPropMap, propName);
    return isPresent(mappedPropName) ? mappedPropName : propName;
  }
}