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

namespace JNPF.Extras.CollectiveOAuth.Request;

public class FackbookAuthRequest : DefaultAuthRequest
{
    public FackbookAuthRequest(ClientConfig config) : base(config, new FackbookAuthSource())
    {
    }

    public FackbookAuthRequest(ClientConfig config, IAuthStateCache authStateCache)
        : base(config, new FackbookAuthSource(), authStateCache)
    {
    }

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

        var authToken = new AuthToken
        {
            accessToken = accessTokenObject.getString("access_token"),
            expireIn = accessTokenObject.getInt32("expires_in"),
            tokenType = accessTokenObject.getString("token_type"),
            code = authCallback.code
        };
        return authToken;
    }

    protected override AuthUser getUserInfo(AuthToken authToken)
    {
        var response = doGetUserInfo(authToken);
        var userObj = response.parseObject();
        this.checkResponse(userObj);

        var authUser = new AuthUser
        {
            uuid = userObj.getString("id"),
            username = userObj.getString("name"),
            nickname = userObj.getString("name"),
            avatar = getUserPicture(userObj),
            location = userObj.getString("locale"),
            email = userObj.getString("email"),
            gender = GlobalAuthUtil.getRealGender(userObj.getString("gender")),
            token = authToken,
            source = source.getName(),
            originalUser = userObj,
            originalUserStr = response
        };
        return authUser;
    }

    private string getUserPicture(Dictionary<string, object> userObj)
    {
        string picture = null;
        if (userObj.ContainsKey("picture"))
        {
            var pictureObj = userObj.getString("picture").parseObject();
            pictureObj = pictureObj.getString("data").parseObject();
            if (null != pictureObj)
            {
                picture = pictureObj.getString("url");
            }
        }
        return picture;
    }

    /**
     * 返回获取userInfo的url
     *
     * @param authToken 用户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("fields", "id,name,birthday,gender,hometown,email,devices,picture.width(400)")
            .build();
    }


    /**
      * 检查响应内容是否正确
      *
      * @param object 请求响应内容
      */
    private void checkResponse(Dictionary<string, object> dic)
    {
        if (dic.ContainsKey("error"))
        {
            throw new Exception($"{dic.getString("error").parseObject().getString("message")}");
        }
    }
}