package extractor

import (
	"testing"
)

func TestCookie_IsTargetMatch_ExactHost(t *testing.T) {
	c := Cookie{Host: "example.com", Path: "/"}
	match, err := c.IsTargetMatch("https://example.com/page")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !match {
		t.Error("expected match for exact host")
	}
}

func TestCookie_IsTargetMatch_DotPrefix(t *testing.T) {
	c := Cookie{Host: ".example.com", Path: "/"}
	match, err := c.IsTargetMatch("https://sub.example.com/page")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !match {
		t.Error("expected match for .example.com against sub.example.com")
	}
}

func TestCookie_IsTargetMatch_DotPrefix_NoFalsePositive(t *testing.T) {
	c := Cookie{Host: ".example.com", Path: "/"}
	match, err := c.IsTargetMatch("https://notexample.com/page")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if match {
		t.Error("did not expect .example.com to match notexample.com")
	}
}

func TestCookie_IsTargetMatch_PathExact(t *testing.T) {
	c := Cookie{Host: "example.com", Path: "/foo"}
	match, err := c.IsTargetMatch("https://example.com/foo")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !match {
		t.Error("expected match for exact path /foo")
	}
}

func TestCookie_IsTargetMatch_PathPrefix(t *testing.T) {
	c := Cookie{Host: "example.com", Path: "/foo"}
	match, err := c.IsTargetMatch("https://example.com/foo/bar")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !match {
		t.Error("expected match for /foo prefix with /foo/bar")
	}
}

func TestCookie_IsTargetMatch_PathBoundary(t *testing.T) {
	c := Cookie{Host: "example.com", Path: "/foo"}
	match, err := c.IsTargetMatch("https://example.com/foosball")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if match {
		t.Error("did not expect /foo to match /foosball")
	}
}

func TestCookie_IsTargetMatch_EmptyPath(t *testing.T) {
	c := Cookie{Host: "example.com", Path: ""}
	match, err := c.IsTargetMatch("https://example.com/anything")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if !match {
		t.Error("expected empty path cookie to match any path")
	}
}

func TestCookie_IsTargetMatch_NoMatch(t *testing.T) {
	c := Cookie{Host: "other.com", Path: "/"}
	match, err := c.IsTargetMatch("https://example.com/page")
	if err != nil {
		t.Fatalf("unexpected error: %v", err)
	}
	if match {
		t.Error("did not expect other.com to match example.com")
	}
}

func TestCookie_IsTargetMatch_InvalidURL(t *testing.T) {
	c := Cookie{Host: "example.com", Path: "/"}
	_, err := c.IsTargetMatch("://invalid")
	if err == nil {
		t.Error("expected error for invalid URL")
	}
}

func TestStaticCookieJar_GetAll(t *testing.T) {
	jar := &staticCookieJar{
		Cookie{Host: "a.com", Name: "a", Value: "1"},
		Cookie{Host: "b.com", Name: "b", Value: "2"},
	}

	cookies, err := jar.GetAll()
	if err != nil {
		t.Fatalf("GetAll() error: %v", err)
	}
	if len(cookies) != 2 {
		t.Errorf("GetAll() returned %d cookies, want 2", len(cookies))
	}
}

func TestStaticCookieJar_Get(t *testing.T) {
	jar := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
		Cookie{Host: "other.com", Path: "/", Name: "b", Value: "2"},
	}

	cookies, err := jar.Get("https://example.com/page")
	if err != nil {
		t.Fatalf("Get() error: %v", err)
	}
	if len(cookies) != 1 {
		t.Fatalf("Get() returned %d cookies, want 1", len(cookies))
	}
	if cookies[0].Name != "a" {
		t.Errorf("Get() cookie name = %q, want %q", cookies[0].Name, "a")
	}
}

func TestStaticCookieJar_Set_New(t *testing.T) {
	jar := &staticCookieJar{}
	err := jar.Set(Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"})
	if err != nil {
		t.Fatalf("Set() error: %v", err)
	}

	cookies, _ := jar.GetAll()
	if len(cookies) != 1 {
		t.Fatalf("after Set, GetAll() returned %d cookies, want 1", len(cookies))
	}
	if cookies[0].Value != "1" {
		t.Errorf("cookie value = %q, want %q", cookies[0].Value, "1")
	}
}

func TestStaticCookieJar_Set_Update(t *testing.T) {
	jar := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
	}
	err := jar.Set(Cookie{Host: "example.com", Path: "/", Name: "a", Value: "2"})
	if err != nil {
		t.Fatalf("Set() error: %v", err)
	}

	cookies, _ := jar.GetAll()
	if len(cookies) != 1 {
		t.Fatalf("after update Set, GetAll() returned %d cookies, want 1", len(cookies))
	}
	if cookies[0].Value != "2" {
		t.Errorf("cookie value = %q, want %q", cookies[0].Value, "2")
	}
}

func TestStaticCookieJar_Delete(t *testing.T) {
	jar := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
		Cookie{Host: "other.com", Path: "/", Name: "b", Value: "2"},
	}
	err := jar.Delete(Cookie{Host: "example.com", Path: "/", Name: "a"})
	if err != nil {
		t.Fatalf("Delete() error: %v", err)
	}

	cookies, _ := jar.GetAll()
	if len(cookies) != 1 {
		t.Fatalf("after Delete, GetAll() returned %d cookies, want 1", len(cookies))
	}
	if cookies[0].Name != "b" {
		t.Errorf("remaining cookie name = %q, want %q", cookies[0].Name, "b")
	}
}

func TestStaticCookieJar_Delete_NotFound(t *testing.T) {
	jar := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
	}
	err := jar.Delete(Cookie{Host: "nonexistent.com", Path: "/", Name: "x"})
	if err != nil {
		t.Fatalf("Delete() error: %v", err)
	}

	cookies, _ := jar.GetAll()
	if len(cookies) != 1 {
		t.Fatalf("after no-op Delete, GetAll() returned %d cookies, want 1", len(cookies))
	}
}

func TestReadOnlyCookieJar_SetIsNoop(t *testing.T) {
	inner := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
	}
	ro := ReadOnlyCookieJar{Jar: inner}

	err := ro.Set(Cookie{Host: "example.com", Path: "/", Name: "new", Value: "val"})
	if err != nil {
		t.Fatalf("Set() error: %v", err)
	}

	cookies, _ := inner.GetAll()
	if len(cookies) != 1 {
		t.Errorf("ReadOnlyCookieJar.Set should be noop, but inner jar has %d cookies", len(cookies))
	}
}

func TestReadOnlyCookieJar_DeleteIsNoop(t *testing.T) {
	inner := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
	}
	ro := ReadOnlyCookieJar{Jar: inner}

	err := ro.Delete(Cookie{Host: "example.com", Path: "/", Name: "a"})
	if err != nil {
		t.Fatalf("Delete() error: %v", err)
	}

	cookies, _ := inner.GetAll()
	if len(cookies) != 1 {
		t.Errorf("ReadOnlyCookieJar.Delete should be noop, but inner jar has %d cookies", len(cookies))
	}
}

func TestReadOnlyCookieJar_GetAll(t *testing.T) {
	inner := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
	}
	ro := ReadOnlyCookieJar{Jar: inner}

	cookies, err := ro.GetAll()
	if err != nil {
		t.Fatalf("GetAll() error: %v", err)
	}
	if len(cookies) != 1 {
		t.Errorf("ReadOnlyCookieJar.GetAll() returned %d cookies, want 1", len(cookies))
	}
}

func TestReadOnlyCookieJar_Get(t *testing.T) {
	inner := &staticCookieJar{
		Cookie{Host: "example.com", Path: "/", Name: "a", Value: "1"},
	}
	ro := ReadOnlyCookieJar{Jar: inner}

	cookies, err := ro.Get("https://example.com/page")
	if err != nil {
		t.Fatalf("Get() error: %v", err)
	}
	if len(cookies) != 1 {
		t.Errorf("ReadOnlyCookieJar.Get() returned %d cookies, want 1", len(cookies))
	}
}