import { GithubUserPayload } from "../../../types";
import dbHandler from "../../backend/dbHandler";
import httpsRequest from "../../backend/httpsRequest";

type Param = {
    code: string;
    clientId: string;
    clientSecret: string;
};

/**
 * # Login/signup a github user
 */
export default async function githubLogin({
    code,
    clientId,
    clientSecret,
}: Param): Promise<GithubUserPayload | null | undefined> {
    let gitHubUser: GithubUserPayload | undefined;

    try {
        const response = await httpsRequest({
            method: "POST",
            hostname: "github.com",
            path: `/login/oauth/access_token?client_id=${clientId}&client_secret=${clientSecret}&code=${code}`,
            headers: {
                Accept: "application/json",
                "User-Agent": "*",
            },
            scheme: "https",
        });

        const accessTokenObject = JSON.parse(response as string);

        if (!accessTokenObject?.access_token) {
            return gitHubUser;
        }

        const userDataResponse = await httpsRequest({
            method: "GET",
            hostname: "api.github.com",
            path: "/user",
            headers: {
                Authorization: `Bearer ${accessTokenObject.access_token}`,
                "User-Agent": "*",
            },
            scheme: "https",
        });

        gitHubUser = JSON.parse(userDataResponse as string);

        if (!gitHubUser?.email && gitHubUser) {
            const existingGithubUser = (await dbHandler({
                query: `SELECT email FROM users WHERE social_login='1' AND social_platform='github' AND social_id='${gitHubUser.id}'`,
                values: [gitHubUser.id],
            })) as any[];

            if (existingGithubUser && existingGithubUser[0]) {
                gitHubUser.email = existingGithubUser[0].email;
            }
        }
    } catch (error: any) {
        console.log(
            "ERROR in githubLogin.ts backend function =>",
            error.message,
        );
    }

    return gitHubUser;
}