// imports.vr — the bundled standard library, imported by name like in V.
//   vr run examples/imports.vr
//
// The toolchain ships lib/*.vr; `import os` resolves against it (and vendor/)
// from any working directory. Module functions are namespaced: os.exists(),
// json.encode(), strings.join(), math.clamp().

import os
import json
import strings
import math

fn main() {
	// --- os: filesystem helpers ---
	println("cwd: " + os.cwd())
	println("lib has json.vr: " + str(os.exists("lib/json.vr")))
	for f in os.list_dir("lib") {
		println("  lib/" + f)
	}

	// --- json: encode / decode / pretty ---
	let user = {
		name: "amy",
		age: 30,
		score: 87.5,
		tags: ["admin", "beta"],
		active: 1
	}
	println(json.pretty(user))

	let back = json.decode(json.encode(user))
	println("decoded back: " + back.name + ", " + str(back.age))

	// --- strings: namespaced string API ---
	println(strings.join(["one", "two", "three"], ", "))
	println(strings.capitalize("vuurraaf"))
	println(strings.pad_left("42", 5) + "|")
	println(strings.repeat("ab", 3))

	// --- math ---
	println(str(math.clamp(150, 0, 100)))
	println(str(math.sign(-42)))
	println(strings.format(math.pi(), "%.4f"))
}