package httpr

import (
	"net/http"
	"net/http/httptest"
	"os"
	"strings"
	"testing"
)

func Test(t *testing.T) {
	r := New()

	err := r.Handler(http.MethodGet, "/", func(w http.ResponseWriter, r *http.Request) {})
	if err != nil {
		t.Fatal(err)
	}

	err = r.Handler(http.MethodGet, "/", func(w http.ResponseWriter, r *http.Request) {})
	if err == nil {
		t.Fatal("path redefinition wasn't catched")
	}

	err = r.Handler(http.MethodGet, "/a/b", func(w http.ResponseWriter, r *http.Request) {})
	if err != nil {
		t.Fatal(err)
	}

	err = r.Handler(http.MethodGet, "/:a/:b", func(w http.ResponseWriter, r *http.Request) {})
	if err != nil {
		t.Fatal(err)
	}

	err = r.Handler(http.MethodGet, "/:a/:lol", func(w http.ResponseWriter, r *http.Request) {})
	if err == nil {
		t.Fatal("here is a different last param name is supplied, should be catched")
	}

	err = r.ServeStatic("/assets/*filepath", http.FS(os.DirFS(".")))
	if err != nil {
		t.Fatal(err)
	}

	err = r.ServeStatic("/assets/*filepath/*filepath", nil)
	if err == nil {
		t.Fatal("multiple catch-all params wasn't catched")
	}

}

func TestPaths(t *testing.T) {
	found := false

	r := New()

	err := r.Handler(http.MethodGet, "/:lel", func(w http.ResponseWriter, r *http.Request) { found = true })
	if err != nil {
		t.Fatal(err)
	}

	r.NotFoundHandler = func(w http.ResponseWriter, r *http.Request) { found = false }

	w := httptest.NewRecorder()
	p := "/xmpp://me@arav.su"
	req := httptest.NewRequest(http.MethodGet, p, strings.NewReader(""))
	r.ServeHTTP(w, req)
	if found {
		t.Error("Path", p, "should return 404")
	}

	p = "/lel"
	req = httptest.NewRequest(http.MethodGet, p, strings.NewReader(""))
	r.ServeHTTP(w, req)
	if !found {
		t.Error("Path", p, "should return 200")
	}

	p = "/lel/lol"
	req = httptest.NewRequest(http.MethodGet, p, strings.NewReader(""))
	r.ServeHTTP(w, req)
	if found {
		t.Error("Path", p, "should return 404")
	}
}

func TestSubPaths(t *testing.T) {
	found := true

	r := New()

	s := r.Sub("/api/v1")

	err := s.Handler(http.MethodGet, "/", func(w http.ResponseWriter, r *http.Request) { found = true })
	if err != nil {
		t.Fatal(err)
	}

	err = s.Handler(http.MethodGet, "/test", func(w http.ResponseWriter, r *http.Request) { found = true })
	if err != nil {
		t.Fatal(err)
	}

	r.NotFoundHandler = func(w http.ResponseWriter, r *http.Request) { found = false }

	w := httptest.NewRecorder()
	p := "/api/v1/"
	req := httptest.NewRequest(http.MethodGet, p, strings.NewReader(""))
	r.ServeHTTP(w, req)
	if !found {
		t.Error("Path", p, "should return 200")
	}

	p = "/api/v1/test"
	req = httptest.NewRequest(http.MethodGet, p, strings.NewReader(""))
	r.ServeHTTP(w, req)
	if !found {
		t.Error("Path", p, "should return 200")
	}

	p = "/api/v1/nonexistent"
	req = httptest.NewRequest(http.MethodGet, p, strings.NewReader(""))
	r.ServeHTTP(w, req)
	if found {
		t.Error(found, "Path", p, "should return 404")
	}
}

func TestPathParsing(t *testing.T) {
	p, err := newPath("/api/v1/../.")
	if err != nil {
		t.Error(err)
	}
	t.Log(p)
}

const testStr = "/api/v1/foo/bar/baz/abc/def/fucc/b0y/of/a/local/dungeon/master/got/his/ass/fisted/for/free/and/he/was/absolutely/happy/with/that/"

func BenchmarkPatternPathParsing(b *testing.B) {
	for i := 0; i < b.N; i++ {
		p, err := newPath(testStr)
		if err != nil {
			b.Fatal(err)
		}
		b.Log(len(p))
	}
}

func BenchmarkServePathParsing(b *testing.B) {
	for i := 0; i < b.N; i++ {
		p, err := newServePath(testStr)
		if err != nil {
			b.Fatal(err)
		}
		b.Log(len(p))
	}
}