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import { Type } from 'main.core';
import { BBCodeEncoder } from 'ui.bbcode.encoder';
import { BBCodeTagScheme } from './node-schemes/tag-scheme';
import { BBCodeNode, type BBCodeNodeOptions } from '../nodes/node';
import { BBCodeRootNode, type RootNodeOptions } from '../nodes/root-node';
import { BBCodeFragmentNode, type FragmentNodeOptions } from '../nodes/fragment-node';
import { BBCodeElementNode, type BBCodeElementNodeOptions } from '../nodes/element-node';
import { BBCodeTextNode, type BBCodeTextNodeOptions } from '../nodes/text-node';
import { BBCodeNewLineNode } from '../nodes/new-line-node';
import { BBCodeTabNode } from '../nodes/tab-node';
import { BBCodeNodeScheme } from './node-schemes/node-scheme';
import type { BBCodeGroupName, BBCodeNodeName } from './node-schemes/node-scheme';
export type OutputTagCases = $Values<BBCodeScheme.Case>;
export type ParentChildMap = Map<
BBCodeNodeName | BBCodeGroupName,
{
allowedChildren: Array<BBCodeNodeName | BBCodeGroupName>,
allowedIn: Array<BBCodeNodeName | BBCodeGroupName>,
aliases: Array<BBCodeNodeName | BBCodeGroupName>,
},
>;
export type BBCodeSchemeOptions = {
tagSchemes: Array<BBCodeTagScheme>,
outputTagCase?: OutputTagCases,
unresolvedNodesHoisting?: boolean,
encoder?: BBCodeEncoder,
};
export class BBCodeScheme
{
static Case: {[key: string]: string} = {
LOWER: 'lower',
UPPER: 'upper',
};
tagSchemes: Array<BBCodeTagScheme> = [];
outputTagCase: OutputTagCases = BBCodeScheme.Case.LOWER;
unresolvedNodesHoisting: boolean = true;
encoder: BBCodeEncoder = new BBCodeEncoder();
parentChildMap: ?ParentChildMap = null;
static isNodeScheme(value: any): boolean
{
return value instanceof BBCodeNodeScheme;
}
static getTagName(node: string | BBCodeNode): string | null
{
if (Type.isString(node))
{
return node;
}
if (Type.isObject(node) && node instanceof BBCodeNode)
{
return node.getName();
}
return null;
}
constructor(options: BBCodeSchemeOptions = {})
{
if (!Type.isPlainObject(options))
{
throw new TypeError('options is not a object');
}
this.onTagSchemeChange = this.onTagSchemeChange.bind(this);
this.setTagSchemes(options.tagSchemes);
this.setOutputTagCase(options.outputTagCase);
this.setUnresolvedNodesHoisting(options.unresolvedNodesHoisting);
this.setEncoder(options.encoder);
}
onTagSchemeChange()
{
this.parentChildMap = null;
}
setTagSchemes(tagSchemes: Array<BBCodeTagScheme>)
{
if (Type.isArray(tagSchemes))
{
const invalidSchemeIndex: number = tagSchemes.findIndex((scheme: BBCodeTagScheme): boolean => {
return !BBCodeScheme.isNodeScheme(scheme);
});
if (invalidSchemeIndex > -1)
{
throw new TypeError(`tagScheme #${invalidSchemeIndex} is not TagScheme instance`);
}
tagSchemes.forEach((tagScheme: BBCodeTagScheme) => {
tagScheme.setOnChangeHandler(this.onTagSchemeChange);
});
this.tagSchemes = [...tagSchemes];
}
}
setTagScheme(...tagSchemes: Array<BBCodeTagScheme>)
{
const invalidSchemeIndex: number = tagSchemes.findIndex((scheme: BBCodeTagScheme): boolean => {
return !BBCodeScheme.isNodeScheme(scheme);
});
if (invalidSchemeIndex > -1)
{
throw new TypeError(`tagScheme #${invalidSchemeIndex} is not TagScheme instance`);
}
const newTagSchemesNames: Array<string> = tagSchemes.flatMap((scheme: BBCodeTagScheme) => {
return scheme.getName();
});
const currentTagSchemes: Array<BBCodeTagScheme> = this.getTagSchemes();
currentTagSchemes.forEach((scheme: BBCodeTagScheme) => {
scheme.removeName(...newTagSchemesNames);
});
const filteredCurrentTagSchemes: Array<BBCodeTagScheme> = currentTagSchemes.filter((scheme: BBCodeTagScheme) => {
return Type.isArrayFilled(scheme.getName());
});
this.setTagSchemes([
...filteredCurrentTagSchemes,
...tagSchemes,
]);
}
getTagSchemes(): Array<BBCodeTagScheme>
{
return [...this.tagSchemes];
}
getTagScheme(node: string | BBCodeNode): ?BBCodeTagScheme
{
const tagName: ?string = BBCodeScheme.getTagName(node);
if (Type.isString(tagName))
{
return this.getTagSchemes().find((scheme: BBCodeTagScheme): boolean => {
return scheme.getName().includes(tagName.toLowerCase());
});
}
return null;
}
setOutputTagCase(tagCase: $Values<BBCodeScheme.Case>)
{
if (!Type.isNil(tagCase))
{
const allowedCases = Object.values(BBCodeScheme.Case);
if (allowedCases.includes(tagCase))
{
this.outputTagCase = tagCase;
}
else
{
throw new TypeError(`'${tagCase}' is not allowed`);
}
}
}
getOutputTagCase(): $Values<BBCodeScheme.Case>
{
return this.outputTagCase;
}
setUnresolvedNodesHoisting(value: boolean)
{
if (!Type.isNil(value))
{
if (Type.isBoolean(value))
{
this.unresolvedNodesHoisting = value;
}
else
{
throw new TypeError(`'${value}' is not allowed value`);
}
}
}
isAllowedUnresolvedNodesHoisting(): boolean
{
return this.unresolvedNodesHoisting;
}
setEncoder(encoder: BBCodeEncoder)
{
if (encoder instanceof BBCodeEncoder)
{
this.encoder = encoder;
}
}
getEncoder(): BBCodeEncoder
{
return this.encoder;
}
getAllowedTags(): Array<string>
{
return this.getTagSchemes().flatMap((tagScheme: BBCodeTagScheme) => {
return tagScheme.getName();
});
}
isAllowedTag(node: string | BBCodeNode): boolean
{
const allowedTags: Array<string> = this.getAllowedTags();
const tagName: ?string = BBCodeScheme.getTagName(node);
return allowedTags.includes(String(tagName).toLowerCase());
}
isVoid(node: string | BBCodeNode): boolean
{
const tagScheme: ?BBCodeTagScheme = this.getTagScheme(node);
if (tagScheme)
{
return tagScheme.isVoid();
}
return false;
}
isElement(node: BBCodeNode): boolean
{
return node && node.getType() === BBCodeNode.ELEMENT_NODE;
}
isRoot(node: BBCodeNode): boolean
{
return node && node.getName() === '#root';
}
isFragment(node: BBCodeNode): boolean
{
return node && node.getName() === '#fragment';
}
isAnyText(node: BBCodeNode): boolean
{
return node && node.getType() === BBCodeNode.TEXT_NODE;
}
isText(node: BBCodeNode): boolean
{
return node && node.getName() === '#text';
}
isNewLine(node: BBCodeNode): boolean
{
return node && node.getName() === '#linebreak';
}
isTab(node: BBCodeNode): boolean
{
return node && node.getName() === '#tab';
}
getParentChildMap(): ParentChildMap
{
if (Type.isNull(this.parentChildMap))
{
const tagSchemes: Array<BBCodeTagScheme> = this.getTagSchemes();
const map = new Map();
tagSchemes.forEach((tagScheme: BBCodeTagScheme) => {
const groups: Array<BBCodeGroupName> = tagScheme.getGroup();
const schemeNames: Array<string> = [
...tagScheme.getName(),
...groups,
...(tagScheme.isVoid() ? ['#void'] : []),
];
const allowedChildren = tagScheme.getAllowedChildren();
const allowedIn = tagScheme.getAllowedIn();
schemeNames.forEach((name) => {
if (!map.has(name))
{
map.set(
name,
{
allowedChildren: new Set(),
allowedIn: new Set(),
aliases: new Set(),
},
);
}
const entry: {
allowedChildren: Set,
allowedIn: Set,
aliases: Set,
} = map.get(name);
const newEntry = {
allowedChildren: new Set([...entry.allowedChildren, ...allowedChildren]),
allowedIn: new Set([...entry.allowedIn, ...allowedIn]),
aliases: new Set([name, ...groups, ...(tagScheme.isVoid() ? ['#void'] : [])]),
};
map.set(name, newEntry);
});
});
this.parentChildMap = map;
}
return this.parentChildMap;
}
isChildAllowed(parent: string | BBCodeNode, child: string | BBCodeNode): boolean
{
const parentName: ?string = BBCodeScheme.getTagName(parent);
const childName: ?string = BBCodeScheme.getTagName(child);
if (
Type.isStringFilled(parentName)
&& Type.isStringFilled(childName)
)
{
if (parentName === '#fragment')
{
return true;
}
const parentChildMap = this.getParentChildMap();
const parentMap = parentChildMap.get(parentName);
const childMap = parentChildMap.get(childName);
if (
Type.isPlainObject(parentMap)
&& Type.isPlainObject(childMap)
)
{
return (
(
parentMap.allowedChildren.size === 0
|| [...childMap.aliases].some((name) => {
return parentMap.allowedChildren.has(name);
})
)
&& (
childMap.allowedIn.size === 0
|| [...parentMap.aliases].some((name) => {
return childMap.allowedIn.has(name);
})
)
);
}
}
return false;
}
createRoot(options: RootNodeOptions = {}): BBCodeRootNode
{
return new BBCodeRootNode({
...options,
scheme: this,
});
}
createNode(options: BBCodeNodeOptions): BBCodeNode
{
if (!Type.isPlainObject(options))
{
throw new TypeError('options is not a object');
}
if (!Type.isStringFilled(options.name))
{
throw new TypeError('options.name is required');
}
if (!this.isAllowedTag(options.name))
{
throw new TypeError(`Scheme for "${options.name}" tag is not specified.`);
}
return new BBCodeNode({
...options,
scheme: this,
});
}
createElement(options: BBCodeElementNodeOptions = {}): BBCodeElementNode
{
if (!Type.isPlainObject(options))
{
throw new TypeError('options is not a object');
}
if (!Type.isStringFilled(options.name))
{
throw new TypeError('options.name is required');
}
if (!this.isAllowedTag(options.name))
{
throw new TypeError(`Scheme for "${options.name}" tag is not specified.`);
}
return new BBCodeElementNode({
...options,
scheme: this,
});
}
createText(options: BBCodeTextNodeOptions = {}): BBCodeTextNode
{
const preparedOptions = Type.isPlainObject(options) ? options : { content: options };
return new BBCodeTextNode({
...preparedOptions,
scheme: this,
});
}
createNewLine(options: BBCodeTextNodeOptions = {}): BBCodeNewLineNode
{
const preparedOptions = Type.isPlainObject(options) ? options : { content: options };
return new BBCodeNewLineNode({
...preparedOptions,
scheme: this,
});
}
createTab(options: BBCodeTextNodeOptions = {}): BBCodeTabNode
{
const preparedOptions = Type.isPlainObject(options) ? options : { content: options };
return new BBCodeTabNode({
...preparedOptions,
scheme: this,
});
}
createFragment(options: FragmentNodeOptions = {}): BBCodeFragmentNode
{
return new BBCodeFragmentNode({
...options,
scheme: this,
});
}
}