const CONFIG = {
    client_id: "{{ config.client_id }}",
    redirect_uri: "{{ config.domain }}",
    authorization_endpoint: "{{ config.gitea_host }}/login/oauth/authorize",
    token_endpoint: "{{ config.gitea_host }}/login/oauth/access_token",
    requested_scopes: "read:repository,write:repository"
};

const STATES = {
    auth: "{{ state.auth }}",
    error: "{{ state.error }}",
    loading: "{{ state.loading }}",
    repoSelected: "{{ state.repo_selected }}",
    repoCreated: "{{ state.repo_created }}",
    buttonOn: "{{ state.button_on }}",
    featureOn: "{{ state.feature_on }}",
    confirmOn: "{{ state.confirm_on }}",
}

document.on = document.addEventListener;
function sugar(obj) {
    obj.on = obj.addEventListener;
    obj.addClass = (x) => obj.classList.add(x);
    obj.delClass = (x) => obj.classList.remove(x);
    obj.hasClass = (x) => obj.classList.contains(x);
    obj.setClass = (x, y) => obj.classList.toggle(x, y);
    return obj;
}

function get(s) {
    let x = [...document.querySelectorAll(s)].map(sugar);
    return (x.length === 1) ? x[0] : x;
}

// Check if object is empty.
function isEmpty(obj) {
    for (const prop in obj) {
        if (Object.hasOwn(obj, prop)) {
            return false;
        }
    }
    return true;
}

// Returns error and resolves promise if necessary.
function getErr(f) {
    return (err) => {
        if (err instanceof Promise) {
            return err.then(f);
        } else {
            return err;
        }
    }
}

// Parse a query string into an object
function parseQueryString(string) {
    if(string == "") { return {}; }
    var segments = string.split("&").map(s => s.split("=") );
    var queryString = {};
    segments.forEach(s => queryString[s[0]] = s[1]);
    return queryString;
}

get("#login").on("click", async (e) => {
    e.preventDefault();
    if (G_AUTH) {
        window.localStorage.clear();
        document.cookie = "";
        window.location = "/";
    } else {
        // Build the authorization URL
        let url = CONFIG.authorization_endpoint
            + "?response_type=code"
            + "&client_id="+encodeURIComponent(CONFIG.client_id)
            + "&scope="+encodeURIComponent(CONFIG.requested_scopes)
            + "&redirect_uri="+encodeURIComponent(CONFIG.redirect_uri);

        // Redirect to the authorization server
        window.location = url;
    }
});

var G_AUTH = window.localStorage.getItem("token") !== null;
get("body").setClass(STATES["auth"], G_AUTH);