package sinks

import (
	"context"
	"math/rand"
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	"dynatron.me/x/stillbox/internal/common"
	"dynatron.me/x/stillbox/internal/forms"
	"dynatron.me/x/stillbox/pkg/auth"
	"dynatron.me/x/stillbox/pkg/calls"
	"dynatron.me/x/stillbox/pkg/config"
	"dynatron.me/x/stillbox/pkg/sources"

	"github.com/google/uuid"
)

type hand func(w http.ResponseWriter, r *http.Request)

func (h hand) ServeHTTP(w http.ResponseWriter, r *http.Request) {
	h(w, r)
}

func TestRelay(t *testing.T) {
	uuid.SetRand(rand.New(rand.NewSource(1)))

	tests := []struct {
		name      string
		submitter auth.UserID
		apiKey    string
		call      calls.Call
	}{
		{
			name:      "base",
			submitter: auth.UserID(1),
			call: calls.Call{
				ID:        uuid.UUID([16]byte{0x52, 0xfd, 0xfc, 0x07, 0x21, 0x82, 0x45, 0x4f, 0x96, 0x3f, 0x5f, 0x0f, 0x9a, 0x62, 0x1d, 0x72}),
				Submitter: common.PtrTo(auth.UserID(1)),
				System:    197,
				Talkgroup: 10101,
				DateTime:  time.Date(2024, 11, 10, 23, 33, 02, 0, time.Local),
				AudioName: "smallest.mp3",
				// the smallest MP3 there is
				Audio:          []byte{0xFF, 0xF3, 0x14, 0xC4, 0x00, 0x00, 0x00, 0x03, 0x48, 0x01, 0x40, 0x00, 0x00, 0x4C, 0x41, 0x4D, 0x45, 0x33, 0x2E, 0x39, 0x36, 0x2E, 0x31, 0x55},
				AudioType:      "audio/mpeg",
				Duration:       calls.CallDuration(24000000),
				TalkgroupLabel: common.PtrTo("Some TG"),
			},
		},
	}

	for _, tc := range tests {
		t.Run(tc.name, func(t *testing.T) {
			var serr error
			var called bool
			h := hand(func(w http.ResponseWriter, r *http.Request) {
				called = true
				assert.Equal(t, "/api/call-upload", r.URL.Path)
				serr = r.ParseMultipartForm(1024 * 1024 * 2)
				if serr != nil {
					t.Log("parsemultipart", serr)
					return
				}

				cur := new(sources.CallUploadRequest)
				serr = forms.Unmarshal(r, cur, forms.WithAcceptBlank())
				cur.DontStore = true
				if serr != nil {
					t.Log("unmarshal", serr)
					return
				}

				assert.Equal(t, tc.apiKey, cur.Key)

				toC, tcerr := cur.ToCall(tc.submitter)
				require.NoError(t, tcerr)
				assert.Equal(t, &tc.call, toC)
			})
			svr := httptest.NewServer(h)

			cfg := config.Relay{
				URL:    svr.URL,
				APIKey: tc.apiKey,
			}
			ns := &nullSinks{}

			rm, err := NewRelayManager(ns, []config.Relay{cfg})
			require.NoError(t, err)
			err = rm.relays[0].Call(context.Background(), &tc.call)
			assert.True(t, called)
			assert.NoError(t, err)
			assert.NoError(t, serr)
		})
	}
}

type nullSinks struct{}

func (*nullSinks) Register(name string, toAdd Sink, required bool)      {}
func (*nullSinks) Unregister(name string)                               {}
func (*nullSinks) Shutdown()                                            {}
func (*nullSinks) EmitCall(ctx context.Context, call *calls.Call) error { return nil }