using JNPF.Extras.CollectiveOAuth.Cache;
using JNPF.Extras.CollectiveOAuth.Config;
using JNPF.Extras.CollectiveOAuth.Enums;
using JNPF.Extras.CollectiveOAuth.Models;
using JNPF.Extras.CollectiveOAuth.Utils;

namespace JNPF.Extras.CollectiveOAuth.Request;

public class QQAuthRequest : DefaultAuthRequest
{
    public QQAuthRequest(ClientConfig config) : base(config, new QQAuthSource())
    {
    }

    public QQAuthRequest(ClientConfig config, IAuthStateCache authStateCache)
        : base(config, new QQAuthSource(), authStateCache)
    {
    }

    protected override AuthToken getAccessToken(AuthCallback authCallback)
    {
        string response = doGetAuthorizationCode(authCallback.code);
        return getAuthToken(response);
    }

    public override AuthResponse refresh(AuthToken authToken)
    {
        string response = HttpUtils.RequestGet(refreshTokenUrl(authToken.refreshToken));
        return new AuthResponse(AuthResponseStatus.SUCCESS.GetCode(), AuthResponseStatus.SUCCESS.GetDesc(), getAuthToken(response));
    }

    protected override AuthUser getUserInfo(AuthToken authToken)
    {
        string openId = this.getOpenId(authToken);
        string response = doGetUserInfo(authToken);
        var userObj = response.parseObject();
        if (userObj.getInt32("ret") != 0)
        {
            throw new Exception(userObj.getString("msg"));
        }
        string avatar = userObj.getString("figureurl_qq_2");
        if (avatar.IsNullOrWhiteSpace())
        {
            avatar = userObj.getString("figureurl_qq_1");
        }

        string location = $"{userObj.getString("province")}-{userObj.getString("city")}";

        var authUser = new AuthUser();
        authUser.uuid = openId;
        authUser.username = userObj.getString("nickname");
        authUser.nickname = userObj.getString("nickname");
        authUser.avatar = avatar;
        authUser.location = location;
        authUser.email = userObj.getString("email");
        authUser.remark = userObj.getString("bio");
        authUser.gender = GlobalAuthUtil.getRealGender(userObj.getString("gender"));
        authUser.token = authToken;
        authUser.source = source.getName();

        authUser.originalUser = userObj;
        authUser.originalUserStr = response;
        return authUser;
    }

    /**
     * 获取QQ用户的OpenId，支持自定义是否启用查询unionid的功能，如果启用查询unionid的功能，
     * 那就需要开发者先通过邮件申请unionid功能，参考链接 {@see http://wiki.connect.qq.com/unionid%E4%BB%8B%E7%BB%8D}
     *
     * @param authToken 通过{@link AuthQqRequest#getAccessToken(AuthCallback)}获取到的{@code authToken}
     * @return openId
     */
    private string getOpenId(AuthToken authToken)
    {
        var getOpenIdUrl = UrlBuilder.fromBaseUrl("https://graph.qq.com/oauth2.0/me")
                            .queryParam("access_token", authToken.accessToken)
                            .queryParam("unionid", config.unionId)
                            .build();
        string response = HttpUtils.RequestGet(getOpenIdUrl);
        if (!response.IsNullOrWhiteSpace())
        {
            string body = response;
            string removePrefix = body.Replace("callback(", "");
            string removeSuffix = removePrefix.Replace(");", "");
            string openId = removeSuffix.Trim();
            var openIdObj = openId.parseObject();
            if (openIdObj.ContainsKey("error"))
            {
                throw new Exception(openIdObj.getString("error") + ":" + openIdObj.getString("error_description"));
            }
            authToken.openId = openIdObj.getString("openid");
            if (openIdObj.ContainsKey("unionid"))
            {
                authToken.unionId = openIdObj.getString("unionid");
            }

            return authToken.unionId.IsNullOrWhiteSpace() ? authToken.openId : authToken.unionId;
        }

        throw new Exception("request error");
    }

    /**
     * 返回获取userInfo的url
     *
     * @param authToken 用户授权token
     * @return 返回获取userInfo的url
     */
    protected override string userInfoUrl(AuthToken authToken)
    {
        return UrlBuilder.fromBaseUrl(source.userInfo())
            .queryParam("access_token", authToken.accessToken)
            .queryParam("oauth_consumer_key", config.clientId)
            .queryParam("openid", authToken.openId)
            .build();
    }

    private AuthToken getAuthToken(string response)
    {
        var accessTokenObject = response.parseStringObject();
        if (!accessTokenObject.ContainsKey("access_token") || accessTokenObject.ContainsKey("code"))
        {
            throw new Exception(accessTokenObject.getString("msg"));
        }
        var authToken = new AuthToken();
        authToken.accessToken = accessTokenObject.getString("access_token");
        authToken.expireIn = accessTokenObject.getInt32("expires_in");
        authToken.refreshToken = accessTokenObject.getString("refresh_token");

        return authToken;
    }
}