let providers = new Map()
providers.set("www.youtube.com", "youtube")
providers.set("youtube.com", "youtube")
providers.set("youtu.be", "youtube")
providers.set("tv.nrk.no", "nrk")
providers.set("seafile.purser.it", "seafile")

const random = () => {
    const arr = new Uint8Array(32)
    window.crypto.getRandomValues(arr)
    return [...arr].map(x => x.toString(16).padStart(2, "0")).join("")
}

document.addEventListener("DOMContentLoaded", () => {
    const proxyButton = document.getElementById("proxy-button")
    const kodiPlayButton = document.getElementById("kodi-play-button")
    const kodiQueueButton = document.getElementById("kodi-queue-button")

    async function handleProxyButton(ev) {
        const [tab] = chrome.tabs.query({currentWindow: true, active: true})
        const oldurl = new URL(tab.url)
        const search = new URLSearchParams()
        const hostname = oldurl.hostname.toLowerCase()
        let newurl = new URL("https://stream.purser.it")
        
        if(providers.has(hostname)) {
            if(hostname.includes("youtube.com")) {
                let newpath = oldurl.searchParams.get("v")
                if(newpath) {
                    newurl.pathname = "/" + newpath
                }
            } else {
                newurl.pathname = oldurl.pathname
            }
            search.append("provider", providers.get(hostname))
        } else {
            return
        }

        newurl.search = search.toString()
        const newtab = {}
        newtab.url = newurl.href
        chrome.tabs.create(newtab)
    }

    async function handleKodiButton(ev, method, playlistid) {
        const [tab] = await chrome.tabs.query({currentWindow: true, active: true})
        const oldurl = new URL(tab.url)
        const search = new URLSearchParams()
        const hostname = oldurl.hostname.toLowerCase()
        let newurl = new URL("https://stream.purser.it")

        if(providers.has(hostname)) {
            if(hostname.includes("youtube.com")) {
                newurl = new URL("plugin://plugin.video.youtube")
                search.append("action", "play_video")
                const video_id = oldurl.searchParams.get("v")
                if(video_id) {
                    search.append("videoid", video_id)
                }
            } else {
                search.append("provider", providers.get(hostname))
                search.append("raw", "true")
                newurl.pathname = oldurl.pathname
            }
        } else if(hostname == "stream.purser.it") {
            const provider = oldurl.searchParams.get("provider")
            if(provider) {
                if(provider == "youtube") {
                    newurl = new URL("plugin://plugin.video.youtube")
                    search.append("action", "play_video")
                    const video_id = oldurl.pathname.replace("/", "")
                    if(video_id) {
                        search.append("videoid", video_id)
                    }
                } else {
                    search.append("provider", provider)
                    search.append("raw", "true")
                }
            }
        } else {
            return
        }

        newurl.search = search.toString()

        const req = {
            jsonrpc: "2.0",
            method: method,
            id:     random(),
            params: {
                item: {
                    file: newurl.href
                }
            }
        }

        if(playlistid) {
            req.params.playlistid = 1
        }

        const resp = await fetch("http://127.0.0.1:4000/jsonrpc", {
            method: "POST",
            body: JSON.stringify(req),
            headers: {
                "Content-Type": "application/json; charset=utf-8"
            }
        })
        console.log(resp)
    }

    kodiPlayButton.addEventListener("click", async ev => {
        await handleKodiButton(ev, "Player.Open")
    })

    kodiQueueButton.addEventListener("click", async ev => {
        await handleKodiButton(ev, "Playlist.Add", 1)
    })

    proxyButton.addEventListener("click", handleProxyButton)
})