package middleware

import (
	"strings"
	"tyapi-server/internal/config"

	"github.com/gin-gonic/gin"
	"go.uber.org/zap"
)

// DomainAuthMiddleware 域名认证中间件
type DomainAuthMiddleware struct {
	config *config.Config
	logger *zap.Logger
}

// NewDomainAuthMiddleware 创建域名认证中间件
func NewDomainAuthMiddleware(cfg *config.Config, logger *zap.Logger) *DomainAuthMiddleware {
	return &DomainAuthMiddleware{
		config: cfg,
		logger: logger,
	}
}

// GetName 返回中间件名称
func (m *DomainAuthMiddleware) GetName() string {
	return "domain_auth"
}

// GetPriority 返回中间件优先级
func (m *DomainAuthMiddleware) GetPriority() int {
	return 100
}

// Handle 返回中间件处理函数
func (m *DomainAuthMiddleware) Handle(domain string) gin.HandlerFunc {
	return func(c *gin.Context) {

		// 开发环境下跳过外部验证
		if m.config.App.IsDevelopment() {
			m.logger.Info("开发环境：跳过域名验证",
				zap.String("domain", domain))
			c.Next()
		}
		if domain == "" {
			domain = m.config.API.Domain
		}
		host := c.Request.Host

		// 移除端口部分
		if idx := strings.Index(host, ":"); idx != -1 {
			host = host[:idx]
		}
		m.logger.Info("域名认证中间件检查", zap.String("host", host), zap.String("domain", domain))
		if host == domain {
			// 设置域名匹配标记
			c.Set("domainMatched", domain)
			c.Next()
		} else {
			// 不匹配域名，跳过当前组处理，继续执行其他路由
			c.Abort()
			return
		}

		c.Next()
	}
}

// IsGlobal 是否为全局中间件
func (m *DomainAuthMiddleware) IsGlobal() bool {
	return false
}