package session

import (
	"context"
	"encoding/json"
	"path/filepath"
	"strings"
	"testing"
	"time"

	_ "modernc.org/sqlite"

	"onesvm.com/onesvm/browser-server/internal/contract"
	"onesvm.com/onesvm/browser-server/internal/store"
)

func TestETLD1(t *testing.T) {
	cases := map[string]string{
		"https://www.amazon.com/dp/X": "amazon.com",
		"https://news.bbc.co.uk/x":    "bbc.co.uk",
		"https://a.b.com.cn/y":        "b.com.cn",
		"https://192.168.1.1/z":       "192.168.1.1",
	}
	for in, want := range cases {
		if got := ETLD1(in); got != want {
			t.Errorf("ETLD1(%s)=%s want %s", in, got, want)
		}
	}
}

func TestSanitizeDropsAuthAndHuge(t *testing.T) {
	in := []contract.Cookie{
		{Name: "session-id", Value: "ok"},
		{Name: "at-main", Value: "secret"},
		{Name: "SID", Value: "g"},
		{Name: "huge", Value: strings.Repeat("x", MaxCookieBytes+1)},
		{Name: "", Value: "x"},
	}
	out := Sanitize(in)
	if len(out) != 1 || out[0].Name != "session-id" {
		t.Fatalf("只应留下匿名 session-id: %+v", out)
	}
	if out[0].Expires <= time.Now().Unix() {
		t.Fatal("应写入默认 TTL")
	}
}

func TestIsPoison(t *testing.T) {
	if !IsPoison(&contract.ErrBody{Code: contract.CodeBlocked, Message: "x"}, nil) {
		t.Fatal("blocked 应投毒")
	}
	if !IsPoison(nil, &contract.RawResult{Poisoned: true}) {
		t.Fatal("Poisoned 应投毒")
	}
	if !IsPoison(&contract.ErrBody{Code: contract.CodeUpstream, Message: "cloudflare challenge"}, nil) {
		t.Fatal("cf 文案应投毒")
	}
	if IsPoison(&contract.ErrBody{Code: contract.CodeTimeout, Message: "deadline"}, nil) {
		t.Fatal("超时不应丢罐")
	}
	if IsPoison(&contract.ErrBody{Code: contract.CodeUpstream, Message: "empty_extract"}, nil) {
		t.Fatal("空抽取不应丢罐")
	}
}

func TestJarRoundTripAndPoisonDrop(t *testing.T) {
	db, err := store.Open(filepath.Join(t.TempDir(), "s.db"))
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { db.Close() })
	if err := db.Migrate(); err != nil {
		t.Fatal(err)
	}
	ctx := context.Background()
	j, err := Open(ctx, db, "test-node")
	if err != nil {
		t.Fatal(err)
	}
	set, err := db.ListTemplates(ctx, "test-node")
	if err != nil || len(set) != 8 {
		t.Fatalf("应落 8 套模版: n=%d err=%v", len(set), err)
	}
	page := "https://www.example.com/a"
	sess := j.Attach(ctx, "trafilatura", "direct", page)
	if sess == nil || sess.Impersonate != "chrome136" {
		t.Fatalf("attach: %+v", sess)
	}
	if strings.Contains(sess.UserAgent, "151") {
		t.Fatal("模版 UA 禁止 151")
	}
	j.Commit(ctx, sess, &contract.RawResult{
		StatusCode: 200,
		SetCookies: []contract.Cookie{{Name: "sid", Value: "1"}, {Name: "pref", Value: "dark"}},
	}, nil)
	sess2 := j.Attach(ctx, "trafilatura", "direct", page)
	if len(sess2.Cookies) != 1 || sess2.Cookies[0].Name != "pref" {
		t.Fatalf("登录态 sid 应丢、pref 应在: %+v", sess2.Cookies)
	}
	// 另一档不应串罐
	cdp := j.Attach(ctx, "lightpanda", "direct", page)
	if len(cdp.Cookies) != 0 {
		t.Fatalf("http/cdp 不得混罐: %+v", cdp.Cookies)
	}
	j.Commit(ctx, sess2, &contract.RawResult{Poisoned: true}, nil)
	sess3 := j.Attach(ctx, "trafilatura", "direct", page)
	if len(sess3.Cookies) != 0 {
		t.Fatalf("投毒后应空罐: %+v", sess3.Cookies)
	}
}

func TestJobEnvelopeOmitsSession(t *testing.T) {
	j := contract.JobEnvelope{
		ID: "1", Intent: "read",
		Read:    &contract.ReadInput{URL: "https://x/"},
		Session: &contract.SessionAttach{TemplateID: "t", Cookies: []contract.Cookie{{Name: "a", Value: "b"}}},
	}
	b, err := json.Marshal(j)
	if err != nil {
		t.Fatal(err)
	}
	if strings.Contains(string(b), "a") && strings.Contains(string(b), `"name"`) {
		// Cookie 名可能碰巧出现；更硬的：不得有 session 键
	}
	if strings.Contains(string(b), `"session"`) || strings.Contains(string(b), "TemplateID") {
		t.Fatalf("Session 不得进 payload: %s", b)
	}
}

func TestReapExpired(t *testing.T) {
	db, err := store.Open(filepath.Join(t.TempDir(), "r.db"))
	if err != nil {
		t.Fatal(err)
	}
	t.Cleanup(func() { db.Close() })
	if err := db.Migrate(); err != nil {
		t.Fatal(err)
	}
	ctx := context.Background()
	j, err := Open(ctx, db, "reap-node")
	if err != nil {
		t.Fatal(err)
	}
	sess := j.Attach(ctx, "trafilatura", "direct", "https://old.example/x")
	j.Commit(ctx, sess, &contract.RawResult{
		SetCookies: []contract.Cookie{{Name: "gone", Value: "1", Expires: time.Now().Add(-time.Hour).Unix()}},
	}, nil)
	n, err := j.Reap(ctx)
	if err != nil {
		t.Fatal(err)
	}
	_ = n
	again := j.Attach(ctx, "trafilatura", "direct", "https://old.example/x")
	if len(again.Cookies) != 0 {
		t.Fatalf("过期应被收: %+v", again.Cookies)
	}
}