const fs = require("fs")

const { round, floor, ceil } = Math

let boxes = {}
let nodes = []
let edges = []
let mode, name, x, y, w, h, cx, cy, rx, ry, x2, y2
let scale = 1

function flush() {
	if (mode === 'path') {
		edges.push({ x1: x, y1: y, x2, y2 })
	}
	if (mode === 'rect') {
		boxes[name] = [ x * scale |0, y * scale |0, w * scale |0, h * scale |0 ]
		nodes.push({ name, x: x + w/2, y: y + h/2 })
	}
	if (mode === 'circle') {
		x = cx - rx
		y = cy - ry
		w = rx * 2
		h = ry * 2
		boxes[name] = [ x * scale |0, y * scale |0, w * scale |0, h * scale |0 ]
		nodes.push({ name, x: cx, y: cy })
	}
	x = y = x2 = y2 = w = h = cx = cy = rx = ry = 0
	name = null
}

function parse_path_data(path) {
	let cx = 0
	let cy = 0
	let abs = 0
	for (let i = 0; i < path.length;) {
		switch (path[i]) {
		case 'M':
			x = cx = Number(path[i+1])
			y = cy = Number(path[i+2])
			i += 3
			abs = true
			break
		case 'm':
			x = cx = cx + Number(path[i+1])
			y = cy = cy + Number(path[i+2])
			i += 3
			abs = false
			break
		case 'C':
			x2 = cx = Number(path[i+5])
			y2 = cy = Number(path[i+6])
			i += 7
			abs = true
			break
		case 'L':
			i += 1
			abs = true
			break
		case 'H':
			x2 = cx = Number(path[i+1])
			i += 2
			abs = true
			break
		case 'V':
			y2 = cy = Number(path[i+1])
			i += 2
			abs = true
			break
		case 'c':
			x2 = cx = cx + Number(path[i+5])
			y2 = cy = cy + Number(path[i+6])
			i += 7
			break
		case 'l':
			i += 1
			abs = false
			break
		case 'h':
			x2 = cx = cx + Number(path[i+1])
			i += 2
			abs = false
			break
		case 'v':
			y2 = cy = cy + Number(path[i+1])
			i += 2
			abs = false
			break
		default:
			if (abs) {
				x2 = cx = Number(path[i+0])
				y2 = cy = Number(path[i+1])
			} else {
				x2 = cx = cx + Number(path[i+0])
				y2 = cy = cy + Number(path[i+1])
			}
			i += 2
			break
		}
	}
}

for (let line of fs.readFileSync("tools/layout.svg", "utf-8").split("\n")) {
	line = line.trim()
	if (line.startsWith("<rect")) {
		flush()
		mode = "rect"
		x = y = w = h = 0
	} else if (line.startsWith("<ellipse") || line.startsWith("<circle")) {
		flush()
		mode = "circle"
		cx = cy = rx = ry = 0
	} else if (line.startsWith("<path")) {
		flush()
		mode = "path"
	} else if (line.startsWith('x="'))
		x = round(Number(line.split('"')[1]))
	else if (line.startsWith('y="'))
		y = round(Number(line.split('"')[1]))
	else if (line.startsWith('width="'))
		w = round(Number(line.split('"')[1]))
	else if (line.startsWith('height="'))
		h = round(Number(line.split('"')[1]))
	else if (line.startsWith('cx="'))
		cx = round(Number(line.split('"')[1]))
	else if (line.startsWith('cy="'))
		cy = round(Number(line.split('"')[1]))
	else if (line.startsWith('r="'))
		rx = ry = round(Number(line.split('"')[1]))
	else if (line.startsWith('rx="'))
		rx = round(Number(line.split('"')[1]))
	else if (line.startsWith('ry="'))
		ry = round(Number(line.split('"')[1]))
	else if (line.startsWith('inkscape:label="'))
		name = line.split('"')[1]
	else if (line.startsWith('d="'))
		parse_path_data(line.split('"')[1].split(/[ ,]/))
}

flush()

console.log("const boxes = {")
for (let key in boxes)
	console.log("\t\"" + key + "\": " + JSON.stringify(boxes[key]) + ",")
console.log("}")

function find_closest_node(x, y) {
	let nd = Infinity, nn = null

	for (let n of nodes) {
		let d = Math.hypot(n.x - x, n.y - y)
		if (d < nd) {
			nd = d
			nn = n.name
		}
	}

	if (!nn)
		console.log("NOT FOUND", x, y)

	return nn
}

for (let e of edges) {
	let n1 = find_closest_node(e.x1, e.y1)
	let n2 = find_closest_node(e.x2, e.y2)
	console.log(`edge("${n1}", "${n2}", ${e.x1|0}, ${e.y1|0}, ${e.x2|0}, ${e.y2|0})`)
}