package httpapi

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/alexedwards/scs/v2"
	"github.com/descrybe/descrybe-v2/apps/api/internal/auth"
	"github.com/descrybe/descrybe-v2/apps/api/internal/billing"
	"github.com/descrybe/descrybe-v2/apps/api/internal/config"
	"github.com/google/uuid"
)

func TestRouterPlanFeaturesMounted(t *testing.T) {
	t.Parallel()
	sm := scs.New()
	sm.Cookie.Name = "descrybe_session"
	uid := uuid.MustParse("aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa")
	s := &Server{
		Config: config.Config{
			CSRFCookieName: "descrybe_csrf",
			WebOrigin:      "http://localhost:5173",
		},
		Sessions: sm,
		Auth:     &auth.Service{},
		Billing:  &billing.Service{},
		testPlatformAdmin: func(_ context.Context, got uuid.UUID) (bool, error) {
			return got == uid, nil
		},
	}

	var token string
	seed := LoadSession(sm)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		sm.Put(r.Context(), auth.SessionUserIDKey, uid.String())
		w.WriteHeader(http.StatusNoContent)
	}))
	seedRec := httptest.NewRecorder()
	seed.ServeHTTP(seedRec, httptest.NewRequest(http.MethodGet, "/seed", nil))
	for _, c := range seedRec.Result().Cookies() {
		if c.Name == sm.Cookie.Name {
			token = c.Value
		}
	}
	if token == "" {
		t.Fatal("expected session cookie from seed request")
	}

	h := s.Router()

	unauth := httptest.NewRecorder()
	h.ServeHTTP(unauth, httptest.NewRequest(http.MethodGet, "/api/admin/feature-gates", nil))
	if unauth.Code != http.StatusUnauthorized {
		t.Fatalf("unauth status=%d want 401 body=%s", unauth.Code, unauth.Body.String())
	}

	adminPaths := []string{
		"/api/admin/plans/1/features",
		"/api/admin/feature-gates",
	}
	for _, path := range adminPaths {
		mounted := httptest.NewRecorder()
		req := httptest.NewRequest(http.MethodGet, path, nil)
		req.AddCookie(&http.Cookie{Name: sm.Cookie.Name, Value: token})
		h.ServeHTTP(mounted, req)
		if mounted.Code == http.StatusNotFound {
			t.Fatalf("%s not mounted: status=404 body=%s", path, mounted.Body.String())
		}
		// No DB pool in this unit test — handlers may 500/503/400, but must not 404.
		if mounted.Code == http.StatusUnauthorized {
			t.Fatalf("%s: unexpected 401 for platform admin session", path)
		}
	}

	bulkPaths := []struct {
		method string
		path   string
	}{
		{http.MethodPost, "/api/admin/plans/1/features/enable-all"},
		{http.MethodPost, "/api/admin/plans/1/features/disable-all"},
		{http.MethodPut, "/api/admin/feature-gates/sections/marketing"},
	}
	for _, tc := range bulkPaths {
		mounted := httptest.NewRecorder()
		req := httptest.NewRequest(tc.method, tc.path, nil)
		req.AddCookie(&http.Cookie{Name: sm.Cookie.Name, Value: token})
		h.ServeHTTP(mounted, req)
		if mounted.Code == http.StatusNotFound {
			t.Fatalf("%s %s not mounted: status=404", tc.method, tc.path)
		}
	}

	// Tenant capabilities require company context — expect 401 without company selection.
	caps := httptest.NewRecorder()
	req := httptest.NewRequest(http.MethodGet, "/api/billing/capabilities", nil)
	req.AddCookie(&http.Cookie{Name: sm.Cookie.Name, Value: token})
	h.ServeHTTP(caps, req)
	if caps.Code == http.StatusNotFound {
		t.Fatalf("capabilities not mounted: status=404")
	}
	if caps.Code != http.StatusUnauthorized && caps.Code != http.StatusForbidden {
		// Company middleware may return 401 or 400 depending on setup; not 404.
		if caps.Code == http.StatusOK {
			t.Fatalf("capabilities unexpectedly OK without company")
		}
	}
}

func TestRouterPublicPlansMounted(t *testing.T) {
	t.Parallel()
	s := &Server{
		Config: config.Config{
			CSRFCookieName: "descrybe_csrf",
			WebOrigin:      "http://localhost:5173",
		},
		Billing: &billing.Service{},
	}
	h := s.Router()

	for _, path := range []string{"/api/public/plans", "/api/public/credit-packs"} {
		rec := httptest.NewRecorder()
		h.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, path, nil))
		if rec.Code == http.StatusNotFound {
			t.Fatalf("%s not mounted: status=404 body=%s", path, rec.Body.String())
		}
	}
}