const installer = require("./src/installer")
const checker = require("./src/checker")
const sysinfo = require("./src/systeminfo")
const web = require("./src/web")

async function isJavaInstalledAndCompatibleFor(mcVersion, customExec = "java") {
    const mcVersionManifestUrl = await web.getVersionManifest(mcVersion)
    const requiredJRE = await web.getRequiredJREFor(mcVersionManifestUrl)
    const checkJRECommand = checker.getJavaVersionOutput(customExec)
    const isJavaCompatible = checker.isJavaCompatible(checkJRECommand, requiredJRE.majorVersion)
    return isJavaCompatible
}

async function installJava(mcVersion, customExec = null) {
    const versionManifest = await web.getVersionManifest(mcVersion)
    const requiredComponent = await web.getRequiredJREFor(versionManifest)
    const { component, majorVersion } = requiredComponent
    const installationPath = await sysinfo.determineInstallationPath(component, majorVersion, customExec)
    const requiredComponentDetails = await web.getJREComponentDetails(component, sysinfo.getPlatformKey())
    const requiredComponentManifest = await web.getJREComponentManifest(requiredComponentDetails[0].manifest.url)
    return await installer.downloadJavaComponent(requiredComponentManifest, installationPath)
}

module.exports = {
    isJavaInstalledAndCompatibleFor,
    installJava
}