/**
 */
class type_output_html implements type_output<string>
{
	public readonly kind : string = "html";
	public readonly data : {};
	public constructor(data : {}) {this.data = data;}
	
	/**
	 */
	private render_object_internal(
		object : type_object,
		options : {
			level ?: int;
			depth ?: int;
		} = {}
	) : lib_plankton.xml.class_node
	{
		options = Object.assign(
			{
				"level": 0,
				"depth": 0,
			},
			options
		);
		return lib_plankton.call.distinguish<lib_plankton.xml.class_node>(
			object,
			{
				"text": ({"content": content}) => new lib_plankton.xml.class_node_complex(
					"span",
					{
						"class": "sd-text",
					},
					[
						new lib_plankton.xml.class_node_text(content),
					]
				),
				"code": ({"content": content}) => new lib_plankton.xml.class_node_complex(
					"code",
					{
						"class": "sd-code",
					},
					[
						new lib_plankton.xml.class_node_text(content),
					]
				),
				"link": ({"target": target, "label": label}) => new lib_plankton.xml.class_node_complex(
					"a",
					{
						"class": "sd-link",
						"href": target,
					},
					(
						(label === null)
						? []
						: [new lib_plankton.xml.class_node_text(label)]
					)
				),
				"image": ({"url": url, "label": label}) => new lib_plankton.xml.class_node_complex(
					"img",
					{
						"class": "sd-image",
						"alt": label,
						"src": url,
					},
					[]
				),
				"paragraph": ({"content": content}) => new lib_plankton.xml.class_node_complex(
					"p",
					{
						"class": "sd-paragraph",
					},
					[
						this.render_object_internal(
							content,
							{
								"level": options.level,
								"depth": (options.depth + 1),
							}
						),
					]
				),
				"section": ({"title": title, "content": content}) => new lib_plankton.xml.class_node_complex(
					"section",
					{
						"class": "sd-section",
					},
					[
						new lib_plankton.xml.class_node_complex(
							("h" + (options.level + 1).toFixed(0)),
							{},
							[
								new lib_plankton.xml.class_node_text(title),
							]
						),
						this.render_object_internal(
							content,
							{
								"level": (options.level + 1),
								"depth": (options.depth + 1),
							}
						),
					]
				),
				"group": ({"members": members}) => new lib_plankton.xml.class_node_complex(
					"div",
					{
						"class": "sd-group",
					},
					(
						members
						.map(
							x => this.render_object_internal(
								x,
								{
									"depth": options.depth,
									"level": options.level,
								}
							)
						)
					)
				),
				"list": ({"items": items}) => new lib_plankton.xml.class_node_complex(
					"ul",
					{
						"class": "sd-list",
					},
					(
						items
						.map(
							item => new lib_plankton.xml.class_node_complex(
								"li",
								{},
								[
									this.render_object_internal(
										item,
										{
											"level": options.level,
											"depth": (options.depth + 1),
										}
									),
								]
							)
						)
					),
				),
				"table": ({"head": head, "rows": rows}) => new lib_plankton.xml.class_node_complex(
					"table",
					{
						"class": "sd-table",
					},
					(
						[]
						.concat(
							(head === null)
							? []
							: [
								new lib_plankton.xml.class_node_complex(
									"thead",
									{},
									[
										new lib_plankton.xml.class_node_complex(
											"tr",
											{},
											(
												head.map(
													cell => new lib_plankton.xml.class_node_complex(
														"th",
														{},
														[
															this.render_object_internal(
																cell,
																{
																	"level": options.level,
																	"depth": (options.depth + 1),
																}
															),
														]
													)
												)
											)
										),
									]
								),
							]
						)
						.concat(
							[
								new lib_plankton.xml.class_node_complex(
									"tbody",
									{},
									(
										rows.map(
											row => new lib_plankton.xml.class_node_complex(
												"tr",
												{},
												(
													row.map(
														cell => new lib_plankton.xml.class_node_complex(
															"td",
															{},
															[
																this.render_object_internal(
																	cell,
																	{
																		"level": options.level,
																		"depth": (options.depth + 1),
																	}
																),
															]
														)
													)
												)
											)
										)
									)
								)
							]
						)
					),
				),
			},
			{
				"fallback": (object) => new lib_plankton.xml.class_node_complex(
					"pre",
					{
						"class": "sd-unhandled",
						"rel": object.kind,
					},
					[
						new lib_plankton.xml.class_node_text(
							JSON.stringify(object, undefined, "    "),
						)
					]
				),
			}
		);
	}
	
	
	/**
	 * @implementation
	 */
	public render_object(
		object : type_object
	) : string
	{
		return this.render_object_internal(object).compile();
	}
	
	
	/**
	 * @implementation
	 */
	public render_document(
		document : type_document
	) : string
	{
		return lib_plankton.string.coin(
			"<!DOCTYPE html>\n{{html}}",
			{
				"html": new lib_plankton.xml.class_node_complex(
					"html",
					{},
					[
						new lib_plankton.xml.class_node_complex(
							"head",
							{
							},
							[
								new lib_plankton.xml.class_node_complex(
									"meta",
									{
										"charset": "utf-8",
									},
									[
									]
								),
								new lib_plankton.xml.class_node_complex(
									"title",
									{
									},
									[
										new lib_plankton.xml.class_node_text(
											document.content_title
										),
									]
								),
							]
						),
						new lib_plankton.xml.class_node_complex(
							"body",
							{
							},
							[
								this.render_object_internal(
									document.content_main,
									{
										"depth": 1,
									}
								),
							]
						)
					]
				).compile()
			}
		);
	}
	
}


/**
 */
output_kind_register(
	"html",
	(data, sub) => (
		new type_output_html(
			{
			}
		)
	)
);