package documenttext

import (
	"context"
	"fmt"
	"io"
	"os"
	"strings"
	"testing"
	"time"

	"queryorchestration/internal/database/repository"
	"queryorchestration/internal/serviceconfig"
	"queryorchestration/internal/serviceconfig/aws"
	"queryorchestration/internal/serviceconfig/objectstore"
	"queryorchestration/internal/serviceconfig/queue/querysync"
	"queryorchestration/internal/serviceconfig/textract"
	objectstoremock "queryorchestration/mocks/objectstore"
	queuemock "queryorchestration/mocks/queue"
	textractmock "queryorchestration/mocks/textract"

	"github.com/aws/aws-sdk-go-v2/service/s3"
	"github.com/aws/aws-sdk-go-v2/service/sqs"
	awstextract "github.com/aws/aws-sdk-go-v2/service/textract"
	"github.com/google/uuid"
	"github.com/pashagolub/pgxmock/v3"
	"github.com/stretchr/testify/mock"
	"github.com/stretchr/testify/require"
)

type DocTextConfig struct {
	aws.AWSConfig
	serviceconfig.BaseConfig
	querysync.QuerySyncConfig
	textract.TextractConfig
	objectstore.ObjectStoreConfig
}

func TestCreate(t *testing.T) {
	ctx := context.Background()
	pool, err := pgxmock.NewPool()
	require.NoError(t, err)

	cfg := &DocTextConfig{}
	cfg.DBPool = pool
	cfg.DBQueries = repository.New(pool)
	mockStore := objectstoremock.NewMockS3Client(t)
	cfg.StoreClient = mockStore
	mockTextract := textractmock.NewMockTextractClient(t)
	cfg.TextractClient = mockTextract
	mockQueue := queuemock.NewMockSQSClient(t)
	cfg.QueueClient = mockQueue
	cfg.QuerySyncURL = "ex"

	svc := Service{
		cfg: cfg,
	}

	docId := uuid.New()
	t.Run("is not extracted", func(t *testing.T) {
		cleanId := uuid.New()
		bucket := "bucket"
		hash := `"a06d5e0e795adeb6d0b3732330dbcc15"`
		textId := uuid.New()
		key := objectstore.BucketKey{
			ClientID:  "aa",
			Location:  objectstore.Import,
			CreatedAt: time.Now().UTC(),
			EntityID:  cleanId,
		}
		keyStr := key.String()
		root, err := os.OpenRoot("../../../assets")
		require.NoError(t, err)
		textractBaseOut := getTextractFileResponse(t, "sampleGeneration/generated/helloWorld.gen", root)

		mimetype := repository.NullCleanmimetype{
			Valid:         true,
			Cleanmimetype: repository.CleanmimetypeApplicationPdf,
		}
		pool.ExpectQuery("name: IsDocumentTextExtracted :one").WithArgs(docId).WillReturnRows(
			pgxmock.NewRows([]string{"isextracted"}).
				AddRow(false),
		)
		pool.ExpectQuery("name: GetCleanEntryByDocId :one").WithArgs(docId).
			WillReturnRows(
				pgxmock.NewRows([]string{"id", "documentId", "bucket", "key", "version", "hash", "mimetype", "fail", "clientId"}).
					AddRow(cleanId, docId, &bucket, &keyStr, int64(123), &hash, mimetype, nil, key.ClientID),
			)
		bodyMsg := io.NopCloser(strings.NewReader(pdfHelloWorld))
		mockStore.EXPECT().
			GetObject(
				mock.Anything,
				mock.MatchedBy(func(in *s3.GetObjectInput) bool {
					return *in.Bucket == bucket && *in.Key == keyStr
				}),
				mock.Anything,
			).
			Return(&s3.GetObjectOutput{
				Body: bodyMsg,
			}, nil)
		sent := 0
		mockTextract.EXPECT().
			AnalyzeDocument(
				mock.Anything,
				mock.MatchedBy(func(in *awstextract.AnalyzeDocumentInput) bool {
					if sent == 0 {
						sent++
						return true
					}
					return false
				}),
				mock.Anything,
			).
			Return(&textractBaseOut["base"][0], nil).Once()

		pool.ExpectBegin()
		pool.ExpectQuery("name: GetDocumentTextExtractionByHash :one").WithArgs(cleanId, hash).WillReturnRows(
			pgxmock.NewRows([]string{"id"}).
				AddRow(textId),
		)
		pool.ExpectExec("name: AddDocumentTextEntry :exec").WithArgs(textId, pgxmock.AnyArg()).
			WillReturnResult(pgxmock.NewResult("", 1))
		pool.ExpectCommit()

		mockQueue.EXPECT().
			SendMessage(
				mock.Anything,
				mock.MatchedBy(func(in *sqs.SendMessageInput) bool {
					return *in.QueueUrl == cfg.QuerySyncURL && *in.MessageBody == fmt.Sprintf("{\"id\":\"%s\"}", docId.String())
				}),
				mock.Anything,
			).
			Return(&sqs.SendMessageOutput{}, nil)

		err = svc.Extract(ctx, docId)
		require.NoError(t, err)
	})
	t.Run("is extracted", func(t *testing.T) {
		pool.ExpectQuery("name: IsDocumentTextExtracted :one").WithArgs(docId).WillReturnRows(
			pgxmock.NewRows([]string{"isextracted"}).
				AddRow(true),
		)

		mockQueue.EXPECT().
			SendMessage(
				mock.Anything,
				mock.MatchedBy(func(in *sqs.SendMessageInput) bool {
					return *in.QueueUrl == cfg.QuerySyncURL && *in.MessageBody == fmt.Sprintf("{\"id\":\"%s\"}", docId.String())
				}),
				mock.Anything,
			).
			Return(&sqs.SendMessageOutput{}, nil)

		err = svc.Extract(ctx, docId)
		require.NoError(t, err)
	})
}

func TestInformClean(t *testing.T) {
	ctx := context.Background()
	mockSQS := queuemock.NewMockSQSClient(t)

	cfg := &DocTextConfig{}
	cfg.QueueClient = mockSQS
	cfg.QuerySyncURL = "/i/am/here"
	svc := Service{
		cfg: cfg,
	}
	id := uuid.New()

	mockSQS.EXPECT().
		SendMessage(
			mock.Anything,
			mock.MatchedBy(func(in *sqs.SendMessageInput) bool {
				return *in.QueueUrl == cfg.QuerySyncURL && *in.MessageBody == fmt.Sprintf("{\"id\":\"%s\"}", id)
			}),
			mock.Anything,
		).
		Return(&sqs.SendMessageOutput{}, nil)

	err := svc.informExtraction(ctx, id)
	require.NoError(t, err)
}