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

namespace JNPF.Extras.CollectiveOAuth.Request;

public class ToutiaoAuthRequest : DefaultAuthRequest
{
    public ToutiaoAuthRequest(ClientConfig config) : base(config, new ToutiaoAuthSource())
    {
    }

    public ToutiaoAuthRequest(ClientConfig config, IAuthStateCache authStateCache)
        : base(config, new ToutiaoAuthSource(), authStateCache)
    {
    }

    protected override AuthToken getAccessToken(AuthCallback authCallback)
    {
        var response = doGetAuthorizationCode(authCallback.code);
        var accessTokenObject = response.parseObject();

        this.checkResponse(accessTokenObject);

        var authToken = new AuthToken();
        authToken.accessToken = accessTokenObject.getString("access_token");
        authToken.expireIn = accessTokenObject.getInt32("expires_in");
        authToken.openId = accessTokenObject.getString("open_id");
        authToken.code = authCallback.code;
        return authToken;
    }

    protected override AuthUser getUserInfo(AuthToken authToken)
    {
        string userResponse = doGetUserInfo(authToken);
        var userProfile = userResponse.parseObject();
        this.checkResponse(userProfile);

        var userObj = userProfile.getString("data").parseObject();

        bool isAnonymousUser = userObj.getInt32("uid_type") == 14;
        string anonymousUserName = "匿名用户";

        var authUser = new AuthUser();
        authUser.uuid = userObj.getString("uid");
        authUser.username = isAnonymousUser ? anonymousUserName : userObj.getString("screen_name");
        authUser.nickname = isAnonymousUser ? anonymousUserName : userObj.getString("screen_name");
        authUser.avatar = userObj.getString("avatar_url");
        authUser.remark = userObj.getString("description");
        authUser.gender = GlobalAuthUtil.getRealGender(userObj.getString("gender"));
        authUser.token = authToken;
        authUser.source = source.getName();
        authUser.originalUser = userProfile;
        authUser.originalUserStr = userResponse;
        return authUser;
    }

    /**
     * 返回带{@code state}参数的授权url，授权回调时会带上这个{@code state}
     *
     * @param state state 验证授权流程的参数，可以防止csrf
     * @return 返回授权地址
     * @since 1.9.3
     */
    public override string authorize(string state)
    {
        return UrlBuilder.fromBaseUrl(source.authorize())
            .queryParam("response_type", "code")
            .queryParam("client_key", config.clientId)
            .queryParam("redirect_uri", config.redirectUri)
            .queryParam("auth_only", 1)
            .queryParam("display", 0)
            .queryParam("state", getRealState(state))
            .build();
    }

    /**
     * 返回获取accessToken的url
     *
     * @param code 授权码
     * @return 返回获取accessToken的url
     */
    protected override string accessTokenUrl(string code)
    {
        return UrlBuilder.fromBaseUrl(source.accessToken())
            .queryParam("code", code)
            .queryParam("client_key", config.clientId)
            .queryParam("client_secret", config.clientSecret)
            .queryParam("grant_type", "authorization_code")
            .build();
    }

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

    /**
   * 校验请求结果
   *
   * @param response 请求结果
   * @return 如果请求结果正常，则返回Exception
   */
    private void checkResponse(Dictionary<string, object> dic)
    {
        if (dic.ContainsKey("error_code"))
        {
            throw new Exception(getToutiaoErrorCode(dic.getInt32("error_code")).GetDesc());
        }
    }

    private AuthToutiaoErrorCode getToutiaoErrorCode(int errorCode)
    {
        var enumObjects = typeof(AuthToutiaoErrorCode).ToList();
        var codeEnum = enumObjects.Where(a => a.ID == errorCode).ToList();
        if (codeEnum.Count > 0)
        {
            return GlobalAuthUtil.enumFromString<AuthToutiaoErrorCode>(codeEnum[0].Name);
        }
        else
        {
            return AuthToutiaoErrorCode.EC999;
        }
    }
}