package middleware

import (
	"strings"

	"github.com/gin-gonic/gin"

	"git.sundynix.cn/Blizzard/sundynix-site/server/internal/pkg/auth"
	"git.sundynix.cn/Blizzard/sundynix-site/server/internal/pkg/resp"
)

// Auth 校验 Authorization: Bearer <token>，通过后把用户名放进上下文。
func Auth() gin.HandlerFunc {
	return func(c *gin.Context) {
		h := c.GetHeader("Authorization")
		token, ok := strings.CutPrefix(h, "Bearer ")
		if !ok || token == "" {
			resp.Unauthorized(c, "未登录")
			return
		}
		username, err := auth.Parse(token)
		if err != nil {
			resp.Unauthorized(c, err.Error())
			return
		}
		c.Set("username", username)
		c.Next()
	}
}