#!/env/bin lyng

import lyng.io.http

// Step 1: download the main lynglang.com page.
val home = Http.get("https://lynglang.com").text()

// Step 2: find the version-script reference in the page HTML.
val jsRef = "src=\"([^\"]*lyng-version\\.js)\"".re.find(home)
require(jsRef != null, "lyng-version.js reference not found on the homepage")

// Step 3: extract the referenced script path from the first regex capture.
val versionJsPath = jsRef[1]

// Step 4: download the script that exposes `window.LYNG_VERSION`.
val versionJs = Http.get("https://lynglang.com/" + versionJsPath).text()

// Step 5: pull the actual version string from the JavaScript source.
val versionMatch = "LYNG_VERSION\\s*=\\s*\"([^\"]+)\"".re.find(versionJs)
require(versionMatch != null, "LYNG_VERSION assignment not found")

// Step 6: print the discovered version for the user.
println("Lynglang.com version: " + ((versionMatch as RegexMatch)[1]))