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 HuaweiAuthRequest : DefaultAuthRequest
{
    public HuaweiAuthRequest(ClientConfig config) : base(config, new HuaweiAuthSource())
    {
    }

    public HuaweiAuthRequest(ClientConfig config, IAuthStateCache authStateCache)
        : base(config, new HuaweiAuthSource(), authStateCache)
    {
    }

    /**
    * 获取access token
    *
    * @param authCallback 授权成功后的回调参数
    * @return token
    * @see AuthDefaultRequest#authorize()
    * @see AuthDefaultRequest#authorize(String)
    */
    protected override AuthToken getAccessToken(AuthCallback authCallback)
    {
        var reqParams = new Dictionary<string, object>
        {
            { "grant_type", "authorization_code" },
            { "code", authCallback.authorization_code },
            { "client_id", config.clientId },
            { "client_secret", config.clientSecret },
            { "redirect_uri", config.redirectUri },
        };

        var response = HttpUtils.RequestFormPost(source.accessToken(), reqParams.spellParams());

        return getAuthToken(response);
    }

    /**
     * 使用token换取用户信息
     *
     * @param authToken token信息
     * @return 用户信息
     * @see AuthDefaultRequest#getAccessToken(AuthCallback)
     */
    protected override AuthUser getUserInfo(AuthToken authToken)
    {
        var reqParams = new Dictionary<string, object>
        {
            { "nsp_ts", DateTime.Now.Ticks },
            { "access_token", authToken.accessToken },
            { "nsp_fmt", "JS" },
            { "nsp_svc", "OpenUP.User.getInfo" },
        };

        var response = HttpUtils.RequestFormPost(source.userInfo(), reqParams.spellParams());
        var userObj = response.parseObject();

        this.checkResponse(userObj);

        AuthUserGender gender = getRealGender(userObj);

        var authUser = new AuthUser();
        authUser.uuid = userObj.getString("userID");
        authUser.username = userObj.getString("userName");
        authUser.nickname = userObj.getString("userName");
        authUser.gender = gender;
        authUser.avatar = userObj.getString("headPictureURL");

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

    /**
     * 刷新access token （续期）
     *
     * @param authToken 登录成功后返回的Token信息
     * @return AuthResponse
     */
    public override AuthResponse refresh(AuthToken authToken)
    {
        var reqParams = new Dictionary<string, object>
        {
            { "client_id", config.clientId },
            { "client_secret", config.clientSecret },
            { "refresh_token", authToken.refreshToken },
            { "grant_type", "refresh_token" },
        };
        var response = HttpUtils.RequestFormPost(source.refresh(), reqParams.spellParams());

        return new AuthResponse(AuthResponseStatus.SUCCESS.GetCode(), AuthResponseStatus.SUCCESS.GetDesc(), getAuthToken(response));
    }

    private AuthToken getAuthToken(string response)
    {
        var authTokenObj = response.parseObject();

        this.checkResponse(authTokenObj);

        var authToken = new AuthToken();
        authToken.accessToken = authTokenObj.getString("access_token");
        authToken.refreshToken = authTokenObj.getString("refresh_token");
        authToken.expireIn = authTokenObj.getInt32("expires_in");
        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_id", config.clientId)
            .queryParam("redirect_uri", config.redirectUri)
            .queryParam("access_type", "offline")
            .queryParam("scope", config.scope.IsNullOrWhiteSpace() ? "https%3A%2F%2Fwww.huawei.com%2Fauth%2Faccount%2Fbase.profile" : config.scope)
            .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("grant_type", "authorization_code")
            .queryParam("code", code)
            .queryParam("client_id", config.clientId)
            .queryParam("client_secret", config.clientSecret)
            .queryParam("redirect_uri", config.redirectUri)
            .build();
    }

    /**
     * 返回获取userInfo的url
     *
     * @param authToken token
     * @return 返回获取userInfo的url
     */
    protected override string userInfoUrl(AuthToken authToken)
    {
        return UrlBuilder.fromBaseUrl(source.userInfo())
            .queryParam("nsp_ts", DateTime.Now.Ticks)
            .queryParam("access_token", authToken.accessToken)
            .queryParam("nsp_fmt", "JS")
            .queryParam("nsp_svc", "OpenUP.User.getInfo")
            .build();
    }

    /**
     * 获取用户的实际性别。华为系统中，用户的性别：1表示女，0表示男
     *
     * @param object obj
     * @return AuthUserGender
     */
    private AuthUserGender getRealGender(Dictionary<string, object> userObj)
    {
        int genderCodeInt = userObj.getInt32("gender");
        string genderCode = genderCodeInt == 1 ? "0" : (genderCodeInt == 0) ? "1" : genderCodeInt + "";
        return GlobalAuthUtil.getRealGender(genderCode);
    }

    /**
     * 校验响应结果
     *
     * @param object 接口返回的结果
     */
    private void checkResponse(Dictionary<string, object> dic)
    {
        if (dic.ContainsKey("NSP_STATUS"))
        {
            throw new Exception(dic.getString("error"));
        }
        if (dic.ContainsKey("error"))
        {
            throw new Exception(dic.getString("sub_error") + ":" + dic.getString("error_description"));
        }
    }
}