package middleware

import (
	"github.com/gin-gonic/gin"
	"strconv"
	"strings"
	"ycmediakit/internal/pkg/server/systemServer"
	"ycmediakit/internal/pkg/unit/keepalive"
	"ycmediakit/internal/pkg/unit/result"
)

// HttpInterceptor 可自定义鉴权等操作
func HttpInterceptor() gin.HandlerFunc {
	return func(c *gin.Context) {
		c.Next()
	}
}

// KeepAliveToHlsInterceptor 保活 toHls 服务
func KeepAliveToHlsInterceptor(kas *keepalive.Supervisor) gin.HandlerFunc {
	return func(c *gin.Context) {
		kas.CheckIn(c.Request.RequestURI)
		c.Next()
	}
}

// ProbePayloadInterceptor 探测 ffmpeg 命令服务器是否有资源得以运行
func ProbePayloadInterceptor(ps *systemServer.PayloadServer) gin.HandlerFunc {
	return func(c *gin.Context) {
		cfg := ps.Cfg
		if strings.Contains(c.FullPath(), "/start") {
			for i := 0; i < cfg.MaxRetryTime; i++ {
				<-ps.Wait()
				p := ps.GetPayload()
				if p.Cpu.Usage <= cfg.MaxCpuUsage && p.Memory.Usage <= cfg.MaxMemoryUsage {
					c.Next()
					return
				}
			}
			errMsg := "cpu or memory overload, retry time " + strconv.Itoa(cfg.MaxRetryTime)
			result.Forbidden.WithMsg(errMsg).Failure(c)
			c.Abort()
			return
		}
		c.Next()
	}
}