import http from "http"

import https from "https"

const DASHBOARD_PATH = "tools/devicescript-devtools"

const VSCODE_DASHBOARD_PATH = "tools/devicescript-devtools-vscode"

const CONNECT_PATH = "tools/devicescript-connect"

export function fetchDevToolsProxy(

localhost: boolean,

path: "vscode" | "connect" | "dashboard"

): Promise<string> {

const protocol = localhost ? http : https

const url = localhost

? "http://127.0.0.1:8000/devtools/proxy.html"

: "https://microsoft.github.io/jacdac-docs/devtools/proxy"

const dashboardPath =

path === "vscode"

? VSCODE_DASHBOARD_PATH

: path === "connect"

? CONNECT_PATH

: DASHBOARD_PATH

const root = localhost

? "http://127.0.0.1:8000"

: "https://microsoft.github.io/jacdac-docs"

return new Promise<string>((resolve, reject) => {

protocol

.get(url, res => {

if (res.statusCode != 200)

reject(

new Error(`proxy download failed (${res.statusCode})`)

)

res.setEncoding("utf8")

let body = ""

res.on("data", data => (body += data))

res.on("end", () => {

body = body

.replace(

/https:\/\/microsoft.github.io\/jacdac-docs\/dashboard\//g,

`${root}/${dashboardPath}/`

)

.replace("Jacdac DevTools", "DeviceScript DevTools")

.replace(

"https://microsoft.github.io/jacdac-docs/favicon.svg",

"https://microsoft.github.io/devicescript/img/favicon.svg"

)

resolve(body)

})

res.on("error", reject)

})

.on("error", reject)

}).then(body => {

return body

})

}