package entrypoint

import (
	"testing"

	"github.com/yusing/go-proxy/internal/route"
	"github.com/yusing/go-proxy/internal/route/routes"
	. "github.com/yusing/go-proxy/internal/utils/testing"
)

var r route.HTTPRoute

func run(t *testing.T, match []string, noMatch []string) {
	t.Helper()
	t.Cleanup(routes.TestClear)
	t.Cleanup(func() {
		SetFindRouteDomains(nil)
	})

	for _, test := range match {
		t.Run(test, func(t *testing.T) {
			found, err := findRouteFunc(test)
			ExpectNoError(t, err)
			ExpectTrue(t, found == &r)
		})
	}

	for _, test := range noMatch {
		t.Run(test, func(t *testing.T) {
			_, err := findRouteFunc(test)
			ExpectError(t, ErrNoSuchRoute, err)
		})
	}
}

func TestFindRouteAnyDomain(t *testing.T) {
	routes.SetHTTPRoute("app1", &r)

	tests := []string{
		"app1.com",
		"app1.domain.com",
		"app1.sub.domain.com",
	}
	testsNoMatch := []string{
		"sub.app1.com",
		"app2.com",
		"app2.domain.com",
		"app2.sub.domain.com",
	}

	run(t, tests, testsNoMatch)
}

func TestFindRouteExactHostMatch(t *testing.T) {
	tests := []string{
		"app2.com",
		"app2.domain.com",
		"app2.sub.domain.com",
	}
	testsNoMatch := []string{
		"sub.app2.com",
		"app1.com",
		"app1.domain.com",
		"app1.sub.domain.com",
	}

	for _, test := range tests {
		routes.SetHTTPRoute(test, &r)
	}

	run(t, tests, testsNoMatch)
}

func TestFindRouteByDomains(t *testing.T) {
	SetFindRouteDomains([]string{
		".domain.com",
		".sub.domain.com",
	})

	routes.SetHTTPRoute("app1", &r)

	tests := []string{
		"app1.domain.com",
		"app1.sub.domain.com",
	}
	testsNoMatch := []string{
		"sub.app1.com",
		"app1.com",
		"app1.domain.co",
		"app1.domain.com.hk",
		"app1.sub.domain.co",
		"app2.domain.com",
		"app2.sub.domain.com",
	}

	run(t, tests, testsNoMatch)
}

func TestFindRouteByDomainsExactMatch(t *testing.T) {
	SetFindRouteDomains([]string{
		".domain.com",
		".sub.domain.com",
	})

	routes.SetHTTPRoute("app1.foo.bar", &r)

	tests := []string{
		"app1.foo.bar", // exact match
		"app1.foo.bar.domain.com",
		"app1.foo.bar.sub.domain.com",
	}
	testsNoMatch := []string{
		"sub.app1.foo.bar",
		"sub.app1.foo.bar.com",
		"app1.domain.com",
		"app1.sub.domain.com",
	}

	run(t, tests, testsNoMatch)
}