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import { Type, type JsonObject, type JsonValue } from 'main.core';
import { BBCodeNode, type BBCodeNodeOptions, type BBCodeContentNode, type SerializedBBCodeNode, privateMap } from './node';
import { typeof BBCodeFragmentNode } from './fragment-node';
import { type BBCodeNodeStringifier } from '../scheme/node-schemes/node-scheme';
import { typeof BBCodeTagScheme } from '../scheme/node-schemes/tag-scheme';
import { typeof BBCodeScheme } from '../scheme/bbcode-scheme';
export type BBCodeElementNodeValue = string | number | boolean;
export type BBCodeElementNodeOptions = BBCodeNodeOptions & {
attributes?: JsonObject,
value?: BBCodeElementNodeValue,
};
export type SerializedBBCodeElementNode = SerializedBBCodeNode & {
attributes: JsonObject,
value: BBCodeElementNodeValue,
};
export type FilteredChildren = {
resolved: Array<BBCodeContentNode>,
unresolved: Array<BBCodeContentNode>,
};
const voidSymbol: Symbol = Symbol('void');
export class BBCodeElementNode extends BBCodeNode
{
attributes: JsonObject = {};
value: JsonValue = '';
[voidSymbol]: boolean = false;
constructor(options: BBCodeElementNodeOptions = {})
{
super(options);
privateMap.get(this).type = BBCodeNode.ELEMENT_NODE;
const tagScheme: BBCodeTagScheme = this.getTagScheme();
this[voidSymbol] = tagScheme.isVoid();
this.setValue(options.value);
this.setAttributes(options.attributes);
}
setScheme(scheme: BBCodeScheme, onUnknown: (node: BBCodeContentNode) => any)
{
this.getChildren().forEach((node: BBCodeContentNode) => {
node.setScheme(scheme, onUnknown);
});
if (scheme.isAllowedTag(this.getName()))
{
super.setScheme(scheme);
const tagScheme: BBCodeTagScheme = this.getTagScheme();
this[voidSymbol] = tagScheme.isVoid();
}
else
{
super.setScheme(scheme);
onUnknown(this, scheme);
}
}
filterChildren(children: Array<BBCodeContentNode>): FilteredChildren
{
const filteredChildren: FilteredChildren = {
resolved: [],
unresolved: [],
};
const scheme: BBCodeScheme = this.getScheme();
children.forEach((child: BBCodeContentNode) => {
if (scheme.isChildAllowed(this, child))
{
filteredChildren.resolved.push(child);
}
else
{
filteredChildren.unresolved.push(child);
}
});
return filteredChildren;
}
convertChildren(children: Array<BBCodeContentNode>): Array<BBCodeContentNode>
{
const tagScheme: BBCodeTagScheme = this.getTagScheme();
const childConverter = tagScheme.getChildConverter();
if (childConverter)
{
const scheme: BBCodeScheme = this.getScheme();
return children.map((child: BBCodeNode) => {
return childConverter(child, scheme);
});
}
return children;
}
setValue(value: BBCodeElementNodeValue)
{
if (Type.isString(value) || Type.isNumber(value) || Type.isBoolean(value))
{
this.value = value;
}
}
getValue(): BBCodeElementNodeValue
{
return this.value;
}
isVoid(): boolean
{
return this[voidSymbol];
}
canBeEmpty(): boolean
{
return this.getTagScheme().canBeEmpty();
}
hasGroup(groupName: string): boolean
{
return this.getTagScheme().hasGroup(groupName);
}
setAttributes(attributes: JsonObject)
{
if (Type.isPlainObject(attributes))
{
const entries = Object.entries(attributes).map(([key, value]) => {
return [key.toLowerCase(), value];
});
this.attributes = Object.fromEntries(entries);
}
}
setAttribute(name: string, value: any)
{
if (Type.isStringFilled(name))
{
const preparedName: string = name.toLowerCase();
if (Type.isNil(value))
{
delete this.attributes[preparedName];
}
else
{
this.attributes[preparedName] = value;
}
}
}
getAttribute(name: string): string | number | null
{
if (Type.isString(name))
{
return this.attributes[name.toLowerCase()];
}
return null;
}
getAttributes(): JsonObject
{
return { ...this.attributes };
}
appendChild(...children: Array<BBCodeContentNode | BBCodeFragmentNode>)
{
const flattenedChildren: Array<BBCodeContentNode> = BBCodeNode.flattenChildren(children);
const filteredChildren: FilteredChildren = this.filterChildren(flattenedChildren);
const convertedChildren: Array<BBCodeContentNode> = this.convertChildren(filteredChildren.resolved);
convertedChildren.forEach((node: BBCodeContentNode) => {
node.remove();
node.setParent(this);
this.children.push(node);
});
if (Type.isArrayFilled(filteredChildren.unresolved))
{
if (this.getScheme().isAllowedUnresolvedNodesHoisting())
{
this.propagateChild(...filteredChildren.unresolved);
}
else
{
filteredChildren.unresolved.forEach((node: BBCodeContentNode) => {
node.remove();
});
}
}
}
prependChild(...children: Array<BBCodeContentNode | BBCodeFragmentNode>)
{
const flattenedChildren: Array<BBCodeContentNode> = BBCodeNode.flattenChildren(children);
const filteredChildren: FilteredChildren = this.filterChildren(flattenedChildren);
const convertedChildren: Array<BBCodeContentNode> = this.convertChildren(filteredChildren.resolved);
convertedChildren.forEach((node: BBCodeContentNode) => {
node.remove();
node.setParent(this);
this.children.unshift(node);
});
if (Type.isArrayFilled(filteredChildren.unresolved))
{
if (this.getScheme().isAllowedUnresolvedNodesHoisting())
{
this.propagateChild(...filteredChildren.unresolved);
}
else
{
filteredChildren.unresolved.forEach((node: BBCodeContentNode) => {
node.remove();
});
}
}
}
replaceChild(targetNode: BBCodeContentNode, ...children: Array<BBCodeContentNode | BBCodeFragmentNode>)
{
this.children = this.children.flatMap((node: BBCodeContentNode) => {
if (node === targetNode)
{
node.setParent(null);
const flattenedChildren: Array<BBCodeContentNode> = BBCodeNode.flattenChildren(children);
const filteredChildren: FilteredChildren = this.filterChildren(flattenedChildren);
const convertedChildren: Array<BBCodeContentNode> = this.convertChildren(filteredChildren.resolved);
return convertedChildren.map((child: BBCodeContentNode) => {
child.remove();
child.setParent(this);
return child;
});
}
return node;
});
}
toStringValue(): string
{
const value: BBCodeElementNodeValue = this.getValue();
const encodedValue: string = this.getEncoder().encodeAttribute(value);
return value ? `=${encodedValue}` : '';
}
toStringAttributes(): string
{
return Object
.entries(this.getAttributes())
.map(([key: string, attrValue: string]) => {
const preparedKey: string = this.prepareCase(key);
const encodedValue: string = this.getEncoder().encodeAttribute(attrValue);
return attrValue ? `${preparedKey}=${encodedValue}` : preparedKey;
})
.join(' ');
}
getContent(): string
{
return this.getChildren()
.map((child: BBCodeContentNode) => {
return child.toString();
})
.join('');
}
getOpeningTag(): string
{
const displayedName: string = this.getDisplayedName();
const tagValue: BBCodeElementNodeValue = this.toStringValue();
const attributes: JsonObject = this.toStringAttributes();
const formattedAttributes: string = Type.isStringFilled(attributes) ? ` ${attributes}` : '';
return `[${displayedName}${tagValue}${formattedAttributes}]`;
}
getClosingTag(): string
{
return `[/${this.getDisplayedName()}]`;
}
clone(options: { deep: boolean } = {}): BBCodeElementNode
{
const children = (() => {
if (options.deep)
{
return this.getChildren().map((child) => {
return child.clone(options);
});
}
return [];
})();
return this.getScheme().createElement({
name: this.getName(),
void: this.isVoid(),
value: this.getValue(),
attributes: { ...this.getAttributes() },
children,
});
}
splitByChildIndex(index: number): Array<BBCodeElementNode | null>
{
if (!Type.isNumber(index))
{
throw new TypeError('index is not a number');
}
const childrenCount = this.getChildrenCount();
if (index < 0 || index > childrenCount)
{
throw new TypeError(`index '${index}' is out of range ${0}-${childrenCount}`);
}
const leftNode = (() => {
if (index === childrenCount)
{
return this;
}
if (index === 0)
{
return null;
}
const leftChildren = this.getChildren().filter((child, childIndex) => {
return childIndex < index;
});
const node = this.clone();
node.setChildren(leftChildren);
return node;
})();
const rightNode = (() => {
if (index === 0)
{
return this;
}
if (index === childrenCount)
{
return null;
}
const rightChildren = this.getChildren();
const node = this.clone();
node.setChildren(rightChildren);
return node;
})();
if (leftNode && rightNode)
{
this.replace(leftNode, rightNode);
}
return [leftNode, rightNode];
}
getTagScheme(): BBCodeTagScheme
{
return super.getTagScheme();
}
toString(): string
{
const tagScheme: BBCodeTagScheme = this.getTagScheme();
const stringifier: BBCodeNodeStringifier = tagScheme.getStringifier();
if (Type.isFunction(stringifier))
{
const scheme: BBCodeScheme = this.getScheme();
return stringifier(this, scheme);
}
const openingTag: string = this.getOpeningTag();
const content: string = this.getContent();
if (this.isVoid())
{
return `${openingTag}${content}`;
}
const closingTag: string = this.getClosingTag();
return `${openingTag}${content}${closingTag}`;
}
toJSON(): SerializedBBCodeElementNode
{
return {
...super.toJSON(),
value: this.getValue(),
attributes: this.getAttributes(),
void: this.isVoid(),
};
}
}