namespace formgen.input
{
	
	/**
	 */
	export class class_input_wrapper<type_value_inner, type_value_outer> implements interface_input<type_value_outer>
	{

		/**
		 */
		private core : interface_input<type_value_inner>;


		/**
		 */
		private wrap : ((type_value_inner) => type_value_outer);
		

		/**
		 */
		private unwrap : ((type_value_outer) => type_value_inner);
		
		
		/**
		 */
		public constructor(
			core : interface_input<type_value_inner>,
			wrap : ((type_value_inner) => type_value_outer),
			unwrap : ((type_value_outer) => type_value_inner)
		)
		{
			this.core = core;
			this.wrap = wrap;
			this.unwrap = unwrap;
		}
		
		
		/**
		 * [implementation]
		 */
		public async setup(
			element_target : Element
		) : Promise<void>
		{
			return this.core.setup(element_target);
		}
		
		
		/**
		 * [implementation]
		 */
		public async read(
		) : Promise<type_value_outer>
		{
			const value_inner : type_value_inner = await this.core.read();
			const value : type_value_outer = this.wrap(value_inner);
			return Promise.resolve<type_value_outer>(value);
		}
		
		
		/**
		 * [implementation]
		 */
		public async write(
			value : type_value_outer
		) : Promise<void>
		{
			const value_inner : type_value_inner = this.unwrap(value);
			await this.core.write(value_inner);
			return Promise.resolve<void>(undefined);
		}
		
	}

}