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 DouyinAuthRequest : DefaultAuthRequest
{
    public DouyinAuthRequest(ClientConfig config) : base(config, new DouyinAuthSource())
    {
    }

    public DouyinAuthRequest(ClientConfig config, IAuthStateCache authStateCache)
        : base(config, new DouyinAuthSource(), authStateCache)
    {
    }

    protected override AuthToken getAccessToken(AuthCallback authCallback)
    {
        return this.getToken(accessTokenUrl(authCallback.code));
    }

    protected override AuthUser getUserInfo(AuthToken authToken)
    {
        string response = doGetUserInfo(authToken);
        var userInfoObject = response.parseObject();
        this.checkResponse(userInfoObject);
        var userObj = userInfoObject.getString("data").parseObject();

        var location = $"{userObj.getString("country")}-{userObj.getString("province")}-{userObj.getString("city")}";
        var authUser = new AuthUser();
        authUser.uuid = userObj.getString("union_id");
        authUser.username = userObj.getString("nickname");
        authUser.nickname = userObj.getString("nickname");
        authUser.avatar = userObj.getString("avatar");
        authUser.location = location;
        authUser.remark = userObj.getString("description");
        authUser.gender = GlobalAuthUtil.getRealGender(userObj.getString("gender"));

        authUser.token = authToken;
        authUser.source = source.getName();
        authUser.originalUser = userObj;
        authUser.originalUserStr = response;
        return authUser;
    }

    public override AuthResponse refresh(AuthToken oldToken)
    {
        var data = getToken(refreshTokenUrl(oldToken.refreshToken));
        return new AuthResponse(AuthResponseStatus.SUCCESS.GetCode(), AuthResponseStatus.SUCCESS.GetDesc(), data);
    }


    /**
     * 获取token，适用于获取access_token和刷新token
     *
     * @param accessTokenUrl 实际请求token的地址
     * @return token对象
     */
    private AuthToken getToken(string accessTokenUrl)
    {
        var response = HttpUtils.RequestPost(accessTokenUrl);
        string accessTokenStr = response;
        var tokenObj = accessTokenStr.parseObject();
        this.checkResponse(tokenObj);
        var accessTokenObject = tokenObj.getString("data").parseObject();

        var authToken = new AuthToken
        {
            accessToken = accessTokenObject.getString("access_token"),
            openId = accessTokenObject.getString("open_id"),
            expireIn = accessTokenObject.getInt32("token_type"),
            refreshToken = accessTokenObject.getString("refresh_token"),
            scope = accessTokenObject.getString("scope")
        };

        return authToken;
    }

    /**
     * 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("scope", config.scope.IsNullOrWhiteSpace() ? "user_info" : config.scope)
            .queryParam("state", getRealState(state))
            .build();
    }

    /**
     * 返回获取accessToken的url
     *
     * @param code oauth的授权码
     * @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 oauth返回的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("open_id", authToken.openId)
            .build();
    }

    /**
     * 返回获取accessToken的url
     *
     * @param refreshToken oauth返回的refreshtoken
     * @return 返回获取accessToken的url
     */
    protected override string refreshTokenUrl(string refreshToken)
    {
        return UrlBuilder.fromBaseUrl(source.refresh())
            .queryParam("client_key", config.clientId)
            .queryParam("refresh_token", refreshToken)
            .queryParam("grant_type", "refresh_token")
            .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)
    {
        string message = dic.getString("message");
        var data = dic.getString("data").parseObject();
        int errorCode = data.getInt32("error_code");
        if ("error".Equals(message) || errorCode != 0)
        {
            throw new Exception(data.getString("description"));
        }
    }
}