package api

import (
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"os"
	"testing"

	"github.com/go-chi/chi/v5"

	"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
)

func newDiscoverRefreshRouter(h *handlers) chi.Router {
	r := chi.NewRouter()
	r.Route("/api", func(api chi.Router) {
		api.Use(auth.RequireUser(h.pool))
		api.Post("/playlists/system/discover/refresh", h.handleDiscoverRefresh)
	})
	return r
}

func TestDiscoverRefresh_AuthenticatedUser_Returns200(t *testing.T) {
	if os.Getenv("MINSTREL_TEST_DATABASE_URL") == "" {
		t.Skip("MINSTREL_TEST_DATABASE_URL not set")
	}
	h, pool := testHandlers(t)
	user := seedUser(t, pool, "discrefresh", "pw", false)

	req := httptest.NewRequest(http.MethodPost, "/api/playlists/system/discover/refresh", nil)
	req = withUser(req, user)
	rec := httptest.NewRecorder()
	newDiscoverRefreshRouter(h).ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Fatalf("status = %d, want 200; body=%s", rec.Code, rec.Body.String())
	}
	var resp discoverRefreshResp
	if err := json.Unmarshal(rec.Body.Bytes(), &resp); err != nil {
		t.Fatalf("decode: %v", err)
	}
	// On a fresh user with no library, the build runs and emits a
	// Discover playlist (or no row if library is truly empty).
	// Either case is OK; we only assert the response shape decoded.
	if resp.TrackCount < 0 {
		t.Errorf("track_count = %d, want >= 0", resp.TrackCount)
	}
}

func TestDiscoverRefresh_NoAuth_Returns401(t *testing.T) {
	if os.Getenv("MINSTREL_TEST_DATABASE_URL") == "" {
		t.Skip("MINSTREL_TEST_DATABASE_URL not set")
	}
	h, _ := testHandlers(t)

	req := httptest.NewRequest(http.MethodPost, "/api/playlists/system/discover/refresh", nil)
	rec := httptest.NewRecorder()
	newDiscoverRefreshRouter(h).ServeHTTP(rec, req)

	if rec.Code != http.StatusUnauthorized {
		t.Errorf("status = %d, want 401", rec.Code)
	}
}