const customElementsManifest = require('../../dist/custom-elements.json');
const fs = require('fs');
const path = require('path');

//
// Export it here so we can import it elsewhere and use the same version
//
module.exports.customElementsManifest = customElementsManifest;

//
// Gets all components from custom-elements.json and returns them in a more documentation-friendly format.
//
module.exports.getAllComponents = function ()
{
	const allComponents = [];

	customElementsManifest.modules?.forEach(module =>
	{
		module.declarations?.forEach(declaration =>
		{
			if (declaration.customElement)
			{
				// Generate the dist path based on the src path and attach it to the component
				declaration.path = module.path.replace(/^src\//, 'dist/').replace(/\.ts$/, '.js');

				// Remove members that are private or don't have a description
				const members = declaration.members?.filter(member => member.description && member.privacy !== 'private') || [];
				const methods = members?.filter(prop => prop.kind === 'method' && prop.privacy !== 'private') || [];
				const properties = members?.filter(prop =>
				{
					// Look for a corresponding attribute
					const attribute = declaration.attributes?.find(attr => attr.fieldName === prop.name);
					if (attribute)
					{
						prop.attribute = attribute.name || attribute.fieldName;
					}

					return prop.kind === 'field' && prop.privacy !== 'private';
				});
				allComponents.push({
					...declaration,
					methods,
					properties
				});
			}
		});
	});

	// Build dependency graphs
	allComponents.forEach(component =>
	{
		const dependencies = [];

		// Recursively fetch sub-dependencies
		function getDependencies(tag)
		{
			const cmp = allComponents.find(c => c.tagName === tag);
			if (!cmp || !Array.isArray(component.dependencies))
			{
				return;
			}

			cmp.dependencies?.forEach(dependentTag =>
			{
				if (!dependencies.includes(dependentTag))
				{
					dependencies.push(dependentTag);
				}
				getDependencies(dependentTag);
			});
		}

		getDependencies(component.tagName);

		component.dependencies = dependencies.sort();
	});

	// Add custom docs - not monitored for file changes
	allComponents.forEach(component =>
	{
		// Check for custom docs
		const docPath = path.join('..', '..', path.dirname(component.path), component.name + ".md");

		// Stick it in a variable so we can use the content filters
		if (fs.existsSync(path.resolve(docPath)))
		{
			fs.readFile(docPath, (err, data) => component.content = data.toString());
		}
	})

	// Sort by name
	return allComponents.sort((a, b) =>
	{
		if (a.name < b.name)
		{
			return -1;
		}
		if (a.name > b.name)
		{
			return 1;
		}
		return 0;
	});
};

module.exports.getShoelaceVersion = function ()
{
	const shoelace = "@shoelace-style/shoelace"

	const package = JSON.parse(fs.readFileSync('../../package.json', "utf8")) || {dependencies: {}}
	return package.dependencies[shoelace] || "";
}