package controller

import (
	"bbs-backend/api/reply"
	"bbs-backend/api/request"
	"bbs-backend/common/errcode"
	"bbs-backend/common/response"
	"bbs-backend/logic/appservice"
	"github.com/dgrijalva/jwt-go"
	"github.com/gin-gonic/gin"
	"net/http"
	"strings"
)

// GetBBSInfo 获取论坛信息
func GetBBSInfo(c *gin.Context) {
	forumInfo, err := appservice.GetBBSInfo()
	if err != nil {
		response.Error(c, http.StatusInternalServerError, errcode.ErrInternalServerError)
		return
	}

	response.Success(c, reply.BBSInfoReply{
		ForumName:        forumInfo["forum_name"],
		ForumLogo:        forumInfo["forum_logo"],
		ForumDescription: forumInfo["forum_description"],
	})
}

// UpdateBBSInfo 更新论坛信息
func UpdateBBSInfo(c *gin.Context) {
	// 验证管理员权限
	if !isAdmin(c) {
		response.Error(c, http.StatusForbidden, errcode.ErrForbidden)
		return
	}

	var req request.UpdateBBSInfoRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.Error(c, http.StatusBadRequest, errcode.ErrBadRequest)
		return
	}

	err := appservice.UpdateBBSInfo(req)
	if err != nil {
		response.Error(c, http.StatusInternalServerError, errcode.ErrInternalServerError)
		return
	}

	response.Success(c, gin.H{"message": "Forum info updated successfully"})
}

// isAdmin 验证用户是否为管理员
func isAdmin(c *gin.Context) bool {
	authHeader := c.GetHeader("Authorization")
	if authHeader == "" {
		return false
	}

	tokenString := strings.Replace(authHeader, "Bearer ", "", 1)
	token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) {
		return []byte("your_secret_key"), nil
	})

	if err != nil {
		return false
	}

	claims, ok := token.Claims.(jwt.MapClaims)
	if !ok || !token.Valid {
		return false
	}

	userID, ok := claims["user_id"].(float64)
	if !ok {
		return false
	}

	// 假设管理员用户的ID为1
	return uint(userID) == 1
}