package accept

import (
	"os"
	"testing"
	"time"

	"git.asio.asia/nixevol/NixMsg/test/harness"
)

// TestF08NetemRemote 连到已经在丢包路径上的服务，确认保留消息能送达，且相同消息号不再投递一次。
// 由虚拟机脚本准备地址。不进入 task check。
func TestF08NetemRemote(t *testing.T) {
	if os.Getenv("NIXMSG_NETEM") != "1" {
		t.Skip("设置 NIXMSG_NETEM=1 才连到外部丢包环境")
	}
	httpBase := os.Getenv("NIXMSG_HTTP")
	tcpAddr := os.Getenv("NIXMSG_TCP")
	adminPass := os.Getenv("NIXMSG_ADMIN_PASS")
	if httpBase == "" || tcpAddr == "" || adminPass == "" {
		t.Fatal("需要 NIXMSG_HTTP、NIXMSG_TCP、NIXMSG_ADMIN_PASS")
	}
	hs := &harness.Server{
		HTTPBase:      httpBase,
		AdminHTTPBase: httpBase,
		AdminPassword: adminPass,
		Addr:          tcpAddr,
	}
	ac := AdminLogin(t, hs)
	const password = "password1234"
	CreateEndpoint(t, ac, "nemalice1", password)
	CreateEndpoint(t, ac, "nembob001", password)

	alice := MQTTLoginTCP(t, tcpAddr, "nemalice1", password)
	defer alice.Close()
	bob := MQTTLoginTCP(t, tcpAddr, "nembob001", password)
	defer bob.Close()

	send := alice.Request(t, map[string]any{
		"v": 1, "type": "send", "rid": "nem1", "id": "nem-msg-1",
		"to":       map[string]any{"kind": "endpoint", "id": "nembob001"},
		"body":     map[string]any{"enc": "utf8", "data": "through-loss"},
		"delay_ms": int64(0),
		"offline":  map[string]any{"keep": true, "ttl_seconds": int64(3600)},
	})
	if !send.OK {
		t.Fatalf("send: %+v", send)
	}
	msg := bob.WaitType(t, "msg", 45*time.Second)
	if msg["id"] != "nem-msg-1" {
		t.Fatalf("msg: %v", msg)
	}
	again := alice.Request(t, map[string]any{
		"v": 1, "type": "send", "rid": "nem2", "id": "nem-msg-1",
		"to":       map[string]any{"kind": "endpoint", "id": "nembob001"},
		"body":     map[string]any{"enc": "utf8", "data": "through-loss"},
		"delay_ms": int64(0),
		"offline":  map[string]any{"keep": true, "ttl_seconds": int64(3600)},
	})
	if !again.OK {
		t.Fatalf("resend same id: %+v", again)
	}
	if extra := bob.TryType("msg", 3*time.Second); extra != nil && extra["id"] == "nem-msg-1" {
		t.Fatalf("duplicate delivery: %v", extra)
	}
}