// stdlib.vr — tests for the extended stdlib modules (regex, crypto, csv,
// path/process helpers, date arithmetic). Run with `vr test examples/stdlib.vr`.

import regex
import crypto
import csv
import os
import time
import http

fn test_regex() {
	assert regex.is_match(r"^[a-z]+$", "hello") == 1
	assert regex.is_match(r"^[a-z]+$", "Hello1") == 0
	let nums = regex.find_all(r"\d+", "a1b22c333")
	assert len(nums) == 3
	assert nums[0] == "1"
	assert nums[2] == "333"
	assert regex.replace(r"\d+", "x1y22z", "#") == "x#y#z"
	let parts = regex.split(r"[,;]", "a,b;c")
	assert len(parts) == 3
	assert parts[1] == "b"
	// replacing a match in context (no group refs — use find_all for captures)
	assert regex.replace(r"\d+", "id:42 name:bob", "#") == "id:# name:bob"
	// invalid pattern throws (catchable)
	try {
		regex.is_match("([", "x")
		assert false
	} catch e {
		assert len(e) > 0
	}
}

fn test_crypto() {
	assert crypto.sha256("hello") == "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824"
	assert crypto.md5("hello") == "5d41402abc4b2a76b9719d911017c592"
	let enc = crypto.base64_encode("hello")
	assert enc == "aGVsbG8="
	assert crypto.base64_decode(enc) == "hello"
	// hashes differ across inputs
	assert crypto.sha256("a") != crypto.sha256("b")
}

fn test_csv() {
	let rows = csv.parse("name,age\n\"amy, smith\",30\nbob,41")
	assert len(rows) == 3
	assert rows[0][0] == "name"
	assert rows[1][0] == "amy, smith"
	assert rows[2][1] == "41"
	// empty input yields no rows
	assert len(csv.parse("")) == 0
}

fn test_path_helpers() {
	assert os.ext("a/b/file.txt") == ".txt"
	assert os.ext("noext") == ""
	assert os.base("a/b/c.vr") == "c.vr"
	assert os.dir("a/b/c.vr") == "a/b"
	assert os.rel("a/b/c.txt", "a") == "b/c.txt"
	assert os.rel("a/b/c.txt", "a/b/c.txt") == "."
	let abs_p = os.abs("main.v")
	assert abs_p != "main.v"
	assert len(abs_p) > 0
}

fn test_exec_full() {
	let res = os.exec_full("echo hello-out; echo hello-err 1>&2")
	assert res.code == 0
	assert res.stdout == "hello-out\n"
	assert res.stderr == "hello-err\n"
	let bad = os.exec_full("exit 3")
	assert bad.code == 3
}

fn test_time_arithmetic() {
	let t = time.now()
	assert time.add_days(t, 1) - t == 86400
	assert time.add_hours(t, 2) - t == 7200
	assert time.add_minutes(t, 5) - t == 300
	assert time.add_seconds(t, 10) - t == 10
	// 2026-08-25 was a Tuesday
	let fixed = time.parse("2026-08-25 12:00:00")
	assert time.weekday(fixed) == "Tue"
	let later = time.add_days(fixed, 1)
	assert time.date(later) == "2026-08-26"
}

fn test_http_headers_timeout() {
	// offline-safe: connecting to a closed local port fails fast
	try {
		let h = { "X-Test": "1" }
		http.request("GET", "http://127.0.0.1:1/nope", "", h, 500)
		assert false
	} catch e {
		assert len(e) > 0
	}
	try {
		http.get_timeout("http://127.0.0.1:1/nope", 500)
		assert false
	} catch e {
		assert len(e) > 0
	}
}