console.log("Initializing Tab Provenance");
const MENU_ID = "get-opening-tab";

browser.runtime.onInstalled.addListener(() => {
    browser.menus.create({
        "id": MENU_ID,
        "title": "What Opened This?",
        "contexts": ["all"]
    });
});

browser.runtime.onStartup.addListener(() => {
    browser.menus.create({
        "id": MENU_ID,
        "title": "What Opened This?",
        "contexts": ["all"]
    });
});

browser.menus.onClicked.addListener(async (info, tab) => {
    if (info.menuItemId === MENU_ID) {
        console.log(`Tab id: ${tab.id}`);
        const target = { "tabId": tab.id };
        try {
            const url = await browser.sessions.getTabValue(tab.id, "provenance");
            const alertMsg = (typeof url === "undefined") ? "No opening url found" : `This tab was opened by: ${url}`;

            const func = (alertMsg) => {
                alert(alertMsg);
            };
            const args = [alertMsg];
            const injectionResult = await browser.scripting.executeScript({target, args, func});
        } catch (err) {
            await browser.scripting.executeScript({func: () => { alert("Tab not found"); }, target});
            return;
        }

    }
});
// might want to instead use async functions

browser.webNavigation.onCreatedNavigationTarget.addListener((details) => {
    browser.tabs.get(details.sourceTabId).then((source) => {
        browser.sessions.setTabValue(details.tabId,
            "provenance",
            source.url) // TODO encode more
    });
});