'use strict';

module.exports = function layoutItems(lines, options = {}) {
	let currentYOffset = options.initialY;
	let currentXOffset = 0;
	let debugYOffset = 0;
	let debugLines = [];

	let positionedItems = lines.reduce((items, line, i) => {
		debugLines.push({color: "red", y: debugYOffset, lineNumber: i});
		debugLines.push({color: "green", y: currentYOffset, lineNumber: i});
		debugLines.push({color: "orange", y: currentYOffset + line.adjustedHeight, lineNumber: i});

		let alignmentOffset;

		if (line.alignment === "center") {
			alignmentOffset = (options.totalTextWidth - line.width) / 2;
		} else if (line.alignment === "right") {
			alignmentOffset = (options.totalTextWidth - line.width);
		} else {
			alignmentOffset = 0;
		}

		let newItems = items.concat(line.items.map((item) => {
			let x = currentXOffset + alignmentOffset;
			let y = currentYOffset - (line.minAscender / 2) + (line.adjustedHeight / 2)

			debugLines.push({color: "blue", y: y, x1: x, x2: x + item.measurements.width, lineNumber: i});

			currentXOffset += item.measurements.width;

			return Object.assign({
				x: x,
				y: y
			}, item);
		}));

		currentYOffset += line.adjustedHeight;
		debugYOffset += line.adjustedHeight;
		currentXOffset = 0;

		return newItems;
	}, []);

	return {
		positionedItems: positionedItems,
		debugLines: debugLines
	}
};