package handlers

import (
	"encoding/json"
	"fmt"
	"platform/pkg/env"
	"platform/pkg/u"
	"platform/web/auth"
	"platform/web/core"
	g "platform/web/globals"
	q "platform/web/queries"
	"platform/web/services"
	"time"

	"github.com/gofiber/fiber/v2"
	jdc "github.com/jdcloud-api/jdcloud-sdk-go/core"
	"github.com/jdcloud-api/jdcloud-sdk-go/services/cloudauth/apis"
	jdclient "github.com/jdcloud-api/jdcloud-sdk-go/services/cloudauth/client"
)

// Identify 发起实名认证
func Identify(c *fiber.Ctx) error {

	// 检查权限
	authCtx, err := auth.GetAuthCtx(c).PermitUser()
	if err != nil {
		return err
	}
	user := authCtx.User
	if user.IDToken != nil && *user.IDToken != "" {
		// 用户已实名认证
		return c.JSON(IdentifyRes{
			Identified: true,
		})
	}

	// 解析请求参数
	req := new(IdentifyReq)
	if err := c.BodyParser(req); err != nil {
		return err
	}

	// 请求活体认证
	var id = services.ID.GenReadable("iden")

	var credential = jdc.NewCredentials(env.IdenAccessKey, env.IdenSecretKey)
	var client = jdclient.NewCloudauthClient(credential)
	resp, err := client.GetAliveUrl(apis.NewGetAliveUrlRequestWithAllParams(
		u.P(req.Name),
		u.P(req.IdenNo),
		env.IdenCallbackUrl+"?id="+id,
	))
	if err != nil {
		return err
	}

	if resp.Error.Code != 0 {
		var msg string
		switch resp.Error.Code {
		case 1007:
			msg = "身份证号码格式错误"
		}
		return core.NewBizErr(fmt.Sprintf("活体认证失败: %s", msg))
	}

	// 保存认证中间状态
	info := idenInfo{
		Uid:   user.ID,
		Type:  req.Type,
		Name:  req.Name,
		IdNo:  req.IdenNo,
		Token: resp.Result.Token,
	}
	infoStr, err := json.Marshal(info)
	if err != nil {
		return err
	}

	err = g.Redis.Set(c.Context(), idenKey(id), infoStr, 30*time.Minute).Err()
	if err != nil {
		return err
	}

	return c.JSON(IdentifyRes{
		Identified: false,
		Target:     resp.Result.Url,
	})
}

type IdentifyReq struct {
	Type   int    `json:"type" validate:"required,oneof=1 2"`
	Name   string `json:"name" validate:"required"`
	IdenNo string `json:"iden_no" validate:"required"`
}

type IdentifyRes struct {
	Identified bool   `json:"identified"`
	Target     string `json:"target"`
}

type idenResultData struct {
	Success bool
	Message string
}

// IdentifyCallbackNew 更新用户实名认证状态
func IdentifyCallbackNew(c *fiber.Ctx) error {

	// 解析请求参数
	req := new(struct {
		Id      string `json:"id" validate:"required"`
		Success bool   `json:"success" validate:"required"`
	})
	if err := c.QueryParser(req); err != nil {
		return renderIdenResult(c, false, "解析请求参数失败")
	}

	// 获取 token
	infoStr, err := g.Redis.GetDel(c.Context(), idenKey(req.Id)).Bytes()
	if err != nil {
		return renderIdenResult(c, false, "实名认证状态已失效，请重新发起认证")
	}
	info := idenInfo{}
	if err = json.Unmarshal(infoStr, &info); err != nil {
		return renderIdenResult(c, false, "解析实名认证信息失败，请重新发起认证")
	}

	// 获取认证结果
	var credential = jdc.NewCredentials(env.IdenAccessKey, env.IdenSecretKey)
	var client = jdclient.NewCloudauthClient(credential)
	resp, err := client.GetAliveResult(apis.NewGetAliveResultRequestWithAllParams(
		info.Token,
	))
	if err != nil {
		return renderIdenResult(c, false, "获取实名认证结果失败，请重新发起认证")
	}
	if resp.Error.Code != 0 {
		return renderIdenResult(c, false, fmt.Sprintf("获取实名认证结果失败：%s", resp.Error.Message))
	}
	if resp.Result.H5Result != "ok" || resp.Result.SmResult != "ok" || resp.Result.RxResult != "ok" {
		return renderIdenResult(c, false, fmt.Sprintf("实名认证未通过：%s", resp.Result.Desc))
	}

	// 更新用户实名认证状态
	_, err = q.User.
		Where(q.User.ID.Eq(info.Uid)).
		UpdateSimple(
			q.User.IDType.Value(info.Type),
			q.User.IDNo.Value(info.IdNo),
			q.User.Name.Value(info.Name),
			q.User.IDToken.Value(info.Token),
		)
	if err != nil {
		return renderIdenResult(c, false, "保存实名认证信息失败，请联系客服处理")
	}

	// 返回结果页面
	return renderIdenResult(c, true, "实名认证成功，请在扫码页面点击按钮完成认证")
}

func renderIdenResult(c *fiber.Ctx, success bool, message string) error {
	return c.Render("views/iden-result", idenResultData{
		Success: success,
		Message: message,
	})
}

// DebugIdentifyClear 清除用户实名认证状态（调试用）
func DebugIdentifyClear(c *fiber.Ctx) error {
	phone := c.Params("phone")
	if phone == "" {
		return core.NewServErr("需要提供手机号")
	}

	_, err := q.User.
		Where(
			q.User.Phone.Eq(phone),
		).
		UpdateSimple(
			q.User.IDType.Value(0),
			q.User.IDNo.Value(""),
			q.User.IDToken.Value(""),
		)
	if err != nil {
		return core.NewServErr("清除实名认证失败")
	}

	return c.SendString("实名信息已清除")
}

func idenKey(id string) string {
	return fmt.Sprintf("iden:%s", id)
}

type idenInfo struct {
	Uid   int32  `json:"uid"`
	Type  int    `json:"type"`
	Name  string `json:"name"`
	IdNo  string `json:"id_no"`
	Token string `json:"token"`
}